nations.cpp

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#include "nations.hpp"
#include "nations_templates.hpp"
#include "dcon_generated.hpp"
#include "demographics.hpp"
#include "modifiers.hpp"
#include "politics.hpp"
#include "system_state.hpp"
#include "ve_scalar_extensions.hpp"
#include "triggers.hpp"
#include "politics.hpp"
#include "events.hpp"
#include "prng.hpp"
#include "effects.hpp"
#include "province_templates.hpp"
#include "rebels.hpp"
 
namespace nations {
 
constexpr float max_prestige = 2147483648.f;
 
namespace influence {
 
int32_t get_level(sys::state& state, dcon::nation_id gp, dcon::nation_id target) {
    auto rel = state.world.get_gp_relationship_by_gp_influence_pair(target, gp);
    return state.world.gp_relationship_get_status(rel) & influence::level_mask;
}
 
} // namespace influence
 
template auto nation_accepts_culture<ve::tagged_vector<dcon::nation_id>, dcon::culture_id>(sys::state const&, ve::tagged_vector<dcon::nation_id>, dcon::culture_id);
template auto primary_culture_group<ve::tagged_vector<dcon::nation_id>>(sys::state const&, ve::tagged_vector<dcon::nation_id>);
template auto owner_of_pop<ve::tagged_vector<dcon::pop_id>>(sys::state const&, ve::tagged_vector<dcon::pop_id>);
template auto central_blockaded_fraction<ve::tagged_vector<dcon::nation_id>>(sys::state const&, ve::tagged_vector<dcon::nation_id>);
template auto central_reb_controlled_fraction<ve::tagged_vector<dcon::nation_id>>(sys::state const&, ve::tagged_vector<dcon::nation_id>);
template auto central_has_crime_fraction<ve::tagged_vector<dcon::nation_id>>(sys::state const&, ve::tagged_vector<dcon::nation_id>);
template auto occupied_provinces_fraction<ve::tagged_vector<dcon::nation_id>>(sys::state const&, ve::tagged_vector<dcon::nation_id>);
 
int64_t get_monthly_pop_increase_of_nation(sys::state& state, dcon::nation_id n) {
    /* TODO -
     * This should return the differance of the population of a nation between this month and next month, or this month and last
     * month, depending which one is better to implement Used in gui/topbar_subwindows/gui_population_window.hpp - Return value is
     * divided by 30
     */
    int64_t estimated_change = 0;
    for(auto p : state.world.nation_get_province_ownership(n)) {
        for(auto pl : state.world.province_get_pop_location(p.get_province())) {
            auto growth = int64_t(demographics::get_monthly_pop_increase(state, pl.get_pop()));
            auto colonial_migration = -int64_t(demographics::get_estimated_colonial_migration(state, pl.get_pop()));
            auto emigration = -int64_t(demographics::get_estimated_emigration(state, pl.get_pop()));
            auto total = int64_t(growth) + colonial_migration + emigration;
            estimated_change += total;
        }
    }
    return estimated_change;
}
 
dcon::nation_id get_nth_great_power(sys::state const& state, uint16_t n) {
    uint16_t count = 0;
    for(uint16_t i = 0; i < uint16_t(state.nations_by_rank.size()); ++i) {
        if(is_great_power(state, state.nations_by_rank[i])) {
            if(count == n)
                return state.nations_by_rank[i];
            ++count;
        }
    }
    return dcon::nation_id{};
}
 
dcon::nation_id owner_of_pop(sys::state const& state, dcon::pop_id pop_ids) {
    auto location = state.world.pop_get_province_from_pop_location(pop_ids);
    return state.world.province_get_nation_from_province_ownership(location);
}
 
void restore_state_instances(sys::state& state) {
    state.world.for_each_state_instance([&](dcon::state_instance_id sid) {
        auto owner = state.world.state_instance_get_nation_from_state_ownership(sid);
        auto base_state = state.world.state_instance_get_definition(sid);
        for(auto mprov : state.world.state_definition_get_abstract_state_membership(base_state)) {
            if(mprov.get_province().get_nation_from_province_ownership() == owner) {
                mprov.get_province().set_state_membership(sid);
            }
        }
    });
}
 
void restore_cached_values(sys::state& state) {
 
    state.world.execute_serial_over_nation([&](auto ids) { state.world.nation_set_allies_count(ids, ve::int_vector()); });
    state.world.for_each_diplomatic_relation([&](dcon::diplomatic_relation_id id) {
        if(state.world.diplomatic_relation_get_are_allied(id)) {
            state.world.nation_get_allies_count(state.world.diplomatic_relation_get_related_nations(id, 0)) += uint16_t(1);
            state.world.nation_get_allies_count(state.world.diplomatic_relation_get_related_nations(id, 1)) += uint16_t(1);
        }
    });
 
    state.world.for_each_nation([&](dcon::nation_id n) {
        int32_t total = 0;
        int32_t substates_total = 0;
        for(auto v : state.world.nation_get_overlord_as_ruler(n)) {
            ++total;
            if(v.get_subject().get_is_substate())
                ++substates_total;
        }
        state.world.nation_set_vassals_count(n, uint16_t(total));
        state.world.nation_set_substates_count(n, uint16_t(substates_total));
    });
}
 
void update_cached_values(sys::state& state) {
    if(state.diplomatic_cached_values_out_of_date) {
        state.diplomatic_cached_values_out_of_date = false;
        restore_cached_values(state);
    }
}
 
void restore_unsaved_values(sys::state& state) {
    state.world.nation_resize_demand_satisfaction(state.world.commodity_size());
    state.world.nation_resize_direct_demand_satisfaction(state.world.commodity_size());
 
    for(auto n : state.world.in_nation)
        n.set_is_great_power(false);
 
    for(auto& gp : state.great_nations) {
        state.world.nation_set_is_great_power(gp.nation, true);
    }
 
    state.world.for_each_gp_relationship([&](dcon::gp_relationship_id rel) {
        if((influence::level_mask & state.world.gp_relationship_get_status(rel)) == influence::level_in_sphere) {
            auto t = state.world.gp_relationship_get_influence_target(rel);
            auto gp = state.world.gp_relationship_get_great_power(rel);
            state.world.nation_set_in_sphere_of(t, gp);
        }
    });
 
    state.world.execute_serial_over_nation([&](auto ids) {
        auto treasury = state.world.nation_get_stockpiles(ids, economy::money);
        state.world.nation_set_last_treasury(ids, treasury);
    });
 
    restore_cached_values(state);
}
 
void generate_initial_state_instances(sys::state& state) {
    for(int32_t i = 0; i < state.province_definitions.first_sea_province.index(); ++i) {
        dcon::province_id pid{dcon::province_id::value_base_t(i)};
        auto owner = state.world.province_get_nation_from_province_ownership(pid);
        if(owner && !(state.world.province_get_state_membership(pid))) {
            auto state_instance = fatten(state.world, state.world.create_state_instance());
            auto abstract_state = state.world.province_get_state_from_abstract_state_membership(pid);
 
            state_instance.set_definition(abstract_state);
            state_instance.set_capital(pid);
            state.world.force_create_state_ownership(state_instance, owner);
 
            for(auto mprov : state.world.state_definition_get_abstract_state_membership(abstract_state)) {
                if(mprov.get_province().get_nation_from_province_ownership() == owner) {
                    mprov.get_province().set_state_membership(state_instance);
                }
            }
        }
    }
 
    for(auto si : state.world.in_state_instance) {
        auto cap = si.get_capital();
        assert(cap);
        auto slave = cap.get_is_slave();
        auto colonial = cap.get_is_colonial();
 
        province::for_each_province_in_state_instance(state, si, [&](dcon::province_id p) {
            state.world.province_set_is_colonial(p, colonial);
            state.world.province_set_is_slave(p, slave);
        });
    }
}
 
bool can_release_as_vassal(sys::state const& state, dcon::nation_id n, dcon::national_identity_id releasable) {
    auto target_nation = state.world.national_identity_get_nation_from_identity_holder(releasable);
    if(!state.world.national_identity_get_is_not_releasable(releasable) &&
            state.world.nation_get_owned_province_count(target_nation) == 0) {
        bool owns_a_core = false;
        bool not_on_capital = true;
        state.world.national_identity_for_each_core(releasable, [&](dcon::core_id core) {
            auto province = state.world.core_get_province(core);
            owns_a_core |= state.world.province_get_nation_from_province_ownership(province) == n;
            not_on_capital &= state.world.nation_get_capital(n) != province;
        });
        return owns_a_core && not_on_capital && !state.world.nation_get_is_at_war(n);
    } else {
        return false;
    }
}
 
bool identity_has_holder(sys::state const& state, dcon::national_identity_id ident) {
    auto fat_ident = dcon::fatten(state.world, ident);
    return bool(fat_ident.get_nation_from_identity_holder().id);
}
 
bool are_allied(sys::state& state, dcon::nation_id a, dcon::nation_id b) {
    auto rel = state.world.get_diplomatic_relation_by_diplomatic_pair(a, b);
    return state.world.diplomatic_relation_get_are_allied(rel);
}
 
bool is_landlocked(sys::state& state, dcon::nation_id n) {
    return state.world.nation_get_total_ports(n) == 0;
}
 
dcon::nation_id get_relationship_partner(sys::state const& state, dcon::diplomatic_relation_id rel_id, dcon::nation_id query) {
    auto fat_id = dcon::fatten(state.world, rel_id);
    return fat_id.get_related_nations(0) == query ? fat_id.get_related_nations(1) : fat_id.get_related_nations(0);
}
 
bool global_national_state::is_global_flag_variable_set(dcon::global_flag_id id) const {
    if(id)
        return dcon::bit_vector_test(global_flag_variables.data(), id.index());
    return false;
}
 
void global_national_state::set_global_flag_variable(dcon::global_flag_id id, bool state) {
    if(id)
        dcon::bit_vector_set(global_flag_variables.data(), id.index(), state);
}
 
dcon::text_key name_from_tag(sys::state& state, dcon::national_identity_id tag) {
    auto holder = state.world.national_identity_get_nation_from_identity_holder(tag);
    if(holder)
        return text::get_name(state, holder);
    else
        return state.world.national_identity_get_name(tag);
}
 
void update_administrative_efficiency(sys::state& state) {
    /*
    - national administrative efficiency: = (the-nation's-national-administrative-efficiency-modifier +
    efficiency-modifier-from-technologies + 1) x number-of-non-colonial-bureaucrat-population / (total-non-colonial-population x
    (sum-of-the-administrative_multiplier-for-social-issues-marked-as-being-administrative x
    define:BUREAUCRACY_PERCENTAGE_INCREMENT + define:MAX_BUREAUCRACY_PERCENTAGE) )
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto admin_mod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::administrative_efficiency_modifier);
        ve::fp_vector issue_sum;
        for(auto i : state.culture_definitions.social_issues) {
            issue_sum = issue_sum + state.world.issue_option_get_administrative_multiplier(state.world.nation_get_issues(ids, i));
        }
        auto from_issues = issue_sum * state.defines.bureaucracy_percentage_increment + state.defines.max_bureaucracy_percentage;
 
        auto non_colonial = state.world.nation_get_non_colonial_population(ids);
        auto total = ve::select(non_colonial > 0.0f,
                (admin_mod + 1.0f) * state.world.nation_get_non_colonial_bureaucrats(ids) / (non_colonial * from_issues), 0.0f);
 
        state.world.nation_set_administrative_efficiency(ids, ve::min(total, 1.0f));
    });
}
 
float daily_research_points(sys::state& state, dcon::nation_id n) {
    /*
    Let pop-sum = for each pop type (research-points-from-type x 1^(fraction of population / optimal fraction))
    Then, the daily research points earned by a nation is: (national-modifier-research-points-modifier + tech-research-modifier +
    1) x (national-modifier-to-research-points) + pop-sum)
    */
    auto rp_mod_mod = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::research_points_modifier);
    auto rp_mod = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::research_points);
 
    float sum_from_pops = 0;
    auto total_pop = state.world.nation_get_demographics(n, demographics::total);
    if(total_pop <= 0.0f)
        return 0.0f;
 
    state.world.for_each_pop_type([&](dcon::pop_type_id t) {
        auto rp = state.world.pop_type_get_research_points(t);
        if(rp > 0) {
            sum_from_pops += rp * std::min(1.0f, state.world.nation_get_demographics(n, demographics::to_key(state, t)) /
                                                                                             (total_pop * state.world.pop_type_get_research_optimum(t)));
        }
    });
 
    return std::max(0.0f, (sum_from_pops + rp_mod) * (rp_mod_mod + 1.0f));
}
 
void update_research_points(sys::state& state) {
    /*
    Let pop-sum = for each pop type (research-points-from-type x 1^(fraction of population / optimal fraction))
    Then, the daily research points earned by a nation is: (national-modifier-research-points-modifier + tech-research-modifier +
    1) x (national-modifier-to-research-points) + pop-sum)
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto rp_mod_mod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::research_points_modifier);
        auto rp_mod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::research_points);
 
        ve::fp_vector sum_from_pops;
        auto total_pop = state.world.nation_get_demographics(ids, demographics::total);
 
        state.world.for_each_pop_type([&](dcon::pop_type_id t) {
            auto rp = state.world.pop_type_get_research_points(t);
            if(rp > 0) {
                sum_from_pops = ve::multiply_and_add(rp,
                        ve::min(1.0f, state.world.nation_get_demographics(ids, demographics::to_key(state, t)) /
                                                            (total_pop * state.world.pop_type_get_research_optimum(t))),
                        sum_from_pops);
            }
        });
        auto amount = ve::select(total_pop > 0.0f && state.world.nation_get_owned_province_count(ids) != 0,
                ve::max((sum_from_pops + rp_mod) * (rp_mod_mod + 1.0f), 0.0f), 0.0f);
        /*
        If a nation is not currently researching a tech (or is an unciv), research points will be banked, up to a total of 365 x
        daily research points, for civs, or define:MAX_RESEARCH_POINTS for uncivs.
        */
        auto current_points = state.world.nation_get_research_points(ids);
        auto capped_value = ve::min(amount + current_points,
                ve::select(state.world.nation_get_is_civilized(ids), ve::select(state.world.nation_get_current_research(ids) == dcon::technology_id{}, amount * 365.0f, amount + current_points), state.defines.max_research_points));
        state.world.nation_set_research_points(ids, capped_value);
    });
}
 
float get_foreign_investment(sys::state& state, dcon::nation_id n) {
    float v = 0.0f;
    for(auto i : state.world.nation_get_unilateral_relationship_as_target(n)) {
        v += i.get_foreign_investment();
    }
    return v;
}
 
float get_foreign_investment_as_gp(sys::state& state, dcon::nation_id n) {
    float v = 0.0f;
    for(auto i : state.world.nation_get_unilateral_relationship_as_source(n)) {
        v += i.get_foreign_investment();
    }
    return v;
}
 
void update_industrial_scores(sys::state& state) {
    /*
    Is the sum of the following two components:
    - For each state: (fraction of factory workers in each state (types marked with can work factory = yes) to the total-workforce
    x building level of factories in the state (capped at 1)) x total-factory-levels
    - For each country that the nation is invested in: define:INVESTMENT_SCORE_FACTOR x the amount invested x 0.05
    */
 
    state.world.for_each_nation([&, iweight = state.defines.investment_score_factor](dcon::nation_id n) {
        float sum = 0;
        if(state.world.nation_get_owned_province_count(n) != 0) {
            for(auto si : state.world.nation_get_state_ownership(n)) {
                float total_level = 0;
                float worker_total =
                    si.get_state().get_demographics(demographics::to_employment_key(state, state.culture_definitions.primary_factory_worker)) +
                    si.get_state().get_demographics(demographics::to_employment_key(state, state.culture_definitions.secondary_factory_worker));
 
                float total_factory_capacity = 0;
                province::for_each_province_in_state_instance(state, si.get_state(), [&](dcon::province_id p) {
                    for(auto f : state.world.province_get_factory_location(p)) {
                        total_factory_capacity +=
                                float(f.get_factory().get_level() * f.get_factory().get_building_type().get_base_workforce());
                        total_level += float(f.get_factory().get_level());
                    }
                });
                if(total_factory_capacity > 0)
                    sum += 4.0f * total_level * std::max(std::min(1.0f, worker_total / total_factory_capacity), 0.05f);
            }
            sum += nations::get_foreign_investment_as_gp(state, n) * iweight; /* investment factor is already multiplied by 0.05f on scenario creation */
    
        }
        float old_score = state.world.nation_get_industrial_score(n);
        if(old_score == 0) {
            state.world.nation_set_industrial_score(n, uint16_t(sum));
        } else {
            state.world.nation_set_industrial_score(n, uint16_t(0.1f * sum + 0.9f * old_score));
        }
    });
}
 
void update_military_scores(sys::state& state) {
    /*
    The first part  is complicated enough that I am going to simplify things slightly, and ignore how mobilization can interact
    with this: First, we need to know the total number of recruitable regiments We also need to know the average land unit score,
    which we define here as (attack + defense + national land attack modifier + national land defense modifier) x discipline Then
    we take the lesser of the number of regiments in the field x 4 or the number of recruitable regiments and multiply it by
    define:DISARMAMENT_ARMY_HIT (if disarmed) multiply that by the average land unit score, multiply again by
    (national-modifier-to-supply-consumption + 1), and then divide by 7.
 
    To that we add for each capital ship: (hull points + national-naval-defense-modifier) x (gun power +
    national-naval-attack-modifier) / 250
 
    And then we add one point either per leader or per regiment, whichever is greater.
    */
    float lp_factor = state.defines.alice_military_score_leadership_factor;
    state.world.execute_serial_over_nation([&, disarm = state.defines.disarmament_army_hit](auto n) {
        auto recruitable = ve::to_float(state.world.nation_get_recruitable_regiments(n));
        auto active_regs = ve::to_float(state.world.nation_get_active_regiments(n));
        auto is_disarmed = ve::apply([&](dcon::nation_id i) { return state.world.nation_get_disarmed_until(i) < state.current_date; }, n);
        auto disarm_factor = ve::select(is_disarmed, ve::fp_vector(disarm), ve::fp_vector(1.0f));
        auto supply_mod = ve::max(state.world.nation_get_modifier_values(n, sys::national_mod_offsets::supply_consumption) + 1.0f, 0.1f);
        auto avg_land_score = state.world.nation_get_averge_land_unit_score(n);
        state.world.nation_set_military_score(n, ve::to_int((ve::min(recruitable, active_regs * 4.0f) * avg_land_score) * ((disarm_factor * supply_mod) / 7.0f) + state.world.nation_get_capital_ship_score(n) + active_regs));
    });
}
 
float prestige_score(sys::state const& state, dcon::nation_id n) {
    return std::max(0.0f, state.world.nation_get_prestige(n) +
                 state.world.nation_get_modifier_values(n, sys::national_mod_offsets::permanent_prestige));
}
 
void update_rankings(sys::state& state) {
    uint32_t to_sort_count = 0;
    state.world.for_each_nation([&](dcon::nation_id n) {
        state.nations_by_rank[to_sort_count] = n;
        ++to_sort_count;
    });
    std::sort(state.nations_by_rank.begin(), state.nations_by_rank.begin() + to_sort_count,
            [&](dcon::nation_id a, dcon::nation_id b) {
                auto fa = fatten(state.world, a);
                auto fb = fatten(state.world, b);
                if((fa.get_owned_province_count() != 0) != (fb.get_owned_province_count() != 0)) {
                    return (fa.get_owned_province_count() != 0);
                }
                if(fa.get_is_civilized() != fb.get_is_civilized())
                    return fa.get_is_civilized();
                if(bool(fa.get_overlord_as_subject().get_ruler()) != bool(fa.get_overlord_as_subject().get_ruler()))
                    return !bool(fa.get_overlord_as_subject().get_ruler());
                auto a_score = fa.get_military_score() + fa.get_industrial_score() + prestige_score(state, a);
                auto b_score = fb.get_military_score() + fb.get_industrial_score() + prestige_score(state, b);
                if(a_score != b_score)
                    return a_score > b_score;
                return a.index() > b.index(); // create a total order
            });
    if(to_sort_count < state.nations_by_rank.size()) {
        state.nations_by_rank[to_sort_count] = dcon::nation_id{};
    }
    for(uint32_t i = 0; i < to_sort_count; ++i) {
        state.world.nation_set_rank(state.nations_by_rank[i], uint16_t(i + 1));
    }
}
 
void update_ui_rankings(sys::state& state) {
    uint32_t to_sort_count = 0;
    state.world.for_each_nation([&](dcon::nation_id n) {
        if(state.world.nation_get_owned_province_count(n) != 0) {
            state.nations_by_industrial_score[to_sort_count] = n;
            state.nations_by_military_score[to_sort_count] = n;
            state.nations_by_prestige_score[to_sort_count] = n;
            ++to_sort_count;
        }
    });
    std::sort(state.nations_by_industrial_score.begin(), state.nations_by_industrial_score.begin() + to_sort_count,
            [&](dcon::nation_id a, dcon::nation_id b) {
                auto fa = fatten(state.world, a);
                auto fb = fatten(state.world, b);
                if(fa.get_is_civilized() && !fb.get_is_civilized())
                    return true;
                if(!fa.get_is_civilized() && fb.get_is_civilized())
                    return false;
                if(bool(fa.get_overlord_as_subject()) && !bool(fa.get_overlord_as_subject()))
                    return false;
                if(!bool(fa.get_overlord_as_subject()) && bool(fa.get_overlord_as_subject()))
                    return true;
                auto a_score = fa.get_industrial_score();
                auto b_score = fb.get_industrial_score();
                if(a_score != b_score)
                    return a_score > b_score;
                return a.index() > b.index();
            });
    std::sort(state.nations_by_military_score.begin(), state.nations_by_military_score.begin() + to_sort_count,
            [&](dcon::nation_id a, dcon::nation_id b) {
                auto fa = fatten(state.world, a);
                auto fb = fatten(state.world, b);
                if(fa.get_is_civilized() && !fb.get_is_civilized())
                    return true;
                if(!fa.get_is_civilized() && fb.get_is_civilized())
                    return false;
                if(bool(fa.get_overlord_as_subject()) && !bool(fa.get_overlord_as_subject()))
                    return false;
                if(!bool(fa.get_overlord_as_subject()) && bool(fa.get_overlord_as_subject()))
                    return true;
                auto a_score = fa.get_military_score();
                auto b_score = fb.get_military_score();
                if(a_score != b_score)
                    return a_score > b_score;
                return a.index() > b.index();
            });
    std::sort(state.nations_by_prestige_score.begin(), state.nations_by_prestige_score.begin() + to_sort_count,
            [&](dcon::nation_id a, dcon::nation_id b) {
                auto fa = fatten(state.world, a);
                auto fb = fatten(state.world, b);
                if(fa.get_is_civilized() && !fb.get_is_civilized())
                    return true;
                if(!fa.get_is_civilized() && fb.get_is_civilized())
                    return false;
                if(bool(fa.get_overlord_as_subject()) && !bool(fa.get_overlord_as_subject()))
                    return false;
                if(!bool(fa.get_overlord_as_subject()) && bool(fa.get_overlord_as_subject()))
                    return true;
                auto a_score = prestige_score(state, a);
                auto b_score = prestige_score(state, b);
                if(a_score != b_score)
                    return a_score > b_score;
                return a.index() > b.index();
            });
    for(uint32_t i = 0; i < to_sort_count; ++i) {
        state.world.nation_set_industrial_rank(state.nations_by_industrial_score[i], uint16_t(i + 1));
        state.world.nation_set_military_rank(state.nations_by_military_score[i], uint16_t(i + 1));
        state.world.nation_set_prestige_rank(state.nations_by_prestige_score[i], uint16_t(i + 1));
    }
}
 
bool is_great_power(sys::state const& state, dcon::nation_id id) {
    return state.world.nation_get_is_great_power(id);
}
 
void update_great_powers(sys::state& state) {
    bool at_least_one_added = false;
 
    for(auto i = state.great_nations.size(); i-- > 0;) {
        if(state.world.nation_get_rank(state.great_nations[i].nation) <= uint16_t(state.defines.great_nations_count)) {
            // is still a gp
            state.great_nations[i].last_greatness = state.current_date;
        } else if(state.great_nations[i].last_greatness + int32_t(state.defines.greatness_days) < state.current_date ||
                            state.world.nation_get_owned_province_count(state.great_nations[i].nation) == 0) {
 
            auto n = state.great_nations[i].nation;
            state.great_nations[i] = state.great_nations.back();
            state.great_nations.pop_back();
            at_least_one_added = true;
 
            state.world.nation_set_is_great_power(n, false);
 
            event::fire_fixed_event(state, state.national_definitions.on_lost_great_nation, trigger::to_generic(n),
                    event::slot_type::nation, n, -1, event::slot_type::none);
 
            // kill gp relationships
            auto rels = state.world.nation_get_gp_relationship_as_great_power(n);
            while(rels.begin() != rels.end()) {
                auto rel = *(rels.begin());
                if(rel.get_influence_target().get_in_sphere_of() == n)
                    rel.get_influence_target().set_in_sphere_of(dcon::nation_id{});
                state.world.delete_gp_relationship(rel);
            }
 
            notification::post(state, notification::message{
                [n](sys::state& state, text::layout_base& contents) {
                    text::add_line(state, contents, "msg_lost_gp_1", text::variable_type::x, n);
                },
                "msg_lost_gp_title",
                n, dcon::nation_id{}, dcon::nation_id{},
                sys::message_base_type::lose_great_power
            });
        }
    }
 
    for(uint32_t i = 0; i < uint32_t(state.defines.great_nations_count) && state.great_nations.size() < size_t(state.defines.great_nations_count); ++i) {
        auto n = state.nations_by_rank[i];
        if(n && !state.world.nation_get_is_great_power(n) && state.world.nation_get_owned_province_count(n) > 0) {
            at_least_one_added = true;
            state.world.nation_set_is_great_power(n, true);
            state.great_nations.push_back(sys::great_nation(state.current_date, n));
            state.world.nation_set_state_from_flashpoint_focus(n, dcon::state_instance_id{});
 
            state.world.nation_set_in_sphere_of(n, dcon::nation_id{});
            auto rng = state.world.nation_get_gp_relationship_as_influence_target(n);
            while(rng.begin() != rng.end()) {
                state.world.delete_gp_relationship(*(rng.begin()));
            }
 
            event::fire_fixed_event(state, state.national_definitions.on_new_great_nation, trigger::to_generic(n), event::slot_type::nation, n, -1, event::slot_type::none);
 
            notification::post(state, notification::message{
                [n](sys::state& state, text::layout_base& contents) {
                    text::add_line(state, contents, "msg_new_gp_1", text::variable_type::x, n);
                },
                "msg_new_gp_title",
                n, dcon::nation_id{}, dcon::nation_id{},
                sys::message_base_type::become_great_power
            });
        }
    }
    if(at_least_one_added) {
        std::sort(state.great_nations.begin(), state.great_nations.end(), [&](sys::great_nation& a, sys::great_nation& b) {
            return state.world.nation_get_rank(a.nation) < state.world.nation_get_rank(b.nation);
        });
    }
}
 
status get_status(sys::state& state, dcon::nation_id n) {
    if(is_great_power(state, n)) {
        return status::great_power;
    } else if(state.world.nation_get_rank(n) <= uint16_t(state.defines.colonial_rank)) {
        return status::secondary_power;
    } else if(state.world.nation_get_is_civilized(n)) {
        return status::civilized;
    } else {
        auto civ_progress = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::civilization_progress_modifier);
        if(civ_progress < 0.15f) {
            return status::primitive;
        } else if(civ_progress < 0.5f) {
            return status::uncivilized;
        } else {
            return status::westernizing;
        }
    }
}
 
sys::date get_research_end_date(sys::state& state, dcon::technology_id tech_id, dcon::nation_id n) {
    sys::date curr = state.current_date;
    auto daily = nations::daily_research_points(state, n);
    auto total = int32_t((culture::effective_technology_cost(state, curr.to_ymd(state.start_date).year, n, tech_id) - state.world.nation_get_research_points(n)) / daily);
    return curr + total;
}
 
dcon::technology_id current_research(sys::state const& state, dcon::nation_id n) {
    return state.world.nation_get_current_research(n);
}
 
float suppression_points(sys::state const& state, dcon::nation_id n) {
    return state.world.nation_get_suppression_points(n);
}
 
float leadership_points(sys::state const& state, dcon::nation_id n) {
    return state.world.nation_get_leadership_points(n);
}
 
int32_t max_national_focuses(sys::state& state, dcon::nation_id n) {
    /*
    - number of national focuses: the lesser of total-accepted-and-primary-culture-population / define:NATIONAL_FOCUS_DIVIDER and
    1 + the number of national focuses provided by technology.
    */
    float relevant_pop =
            state.world.nation_get_demographics(n, demographics::to_key(state, state.world.nation_get_primary_culture(n)));
    for(auto ac : state.world.in_culture) {
        if(state.world.nation_get_accepted_cultures(n, ac))
            relevant_pop += state.world.nation_get_demographics(n, demographics::to_key(state, ac));
    }
 
    return std::max(1, std::min(int32_t(relevant_pop / state.defines.national_focus_divider),
                                                 int32_t(1 + state.world.nation_get_modifier_values(n, sys::national_mod_offsets::max_national_focus))));
}
 
int32_t national_focuses_in_use(sys::state& state, dcon::nation_id n) {
    int32_t total = 0;
    if(state.world.nation_get_state_from_flashpoint_focus(n))
        ++total;
    for(auto si : state.world.nation_get_state_ownership(n)) {
        if(si.get_state().get_owner_focus())
            ++total;
    }
    return total;
}
 
float diplomatic_points(sys::state const& state, dcon::nation_id n) {
    return state.world.nation_get_diplomatic_points(n);
}
 
float monthly_diplomatic_points(sys::state const& state, dcon::nation_id n) {
    auto bmod = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::diplomatic_points_modifier) + 1.0f;
    auto dmod = bmod * state.defines.base_monthly_diplopoints;
    return dmod;
}
 
float colonial_points_from_ships(sys::state& state, dcon::nation_id n) {
    float points = 0.f;
    /*
    Ships: the colonial points they grant x (1.0 - the fraction the nation's naval supply consumption is over that provided
    by its naval bases) x define:COLONIAL_POINTS_FROM_SUPPLY_FACTOR
    */
    int32_t unit_sum = 0;
    for(auto nv : state.world.nation_get_navy_control(n)) {
        for(auto shp : nv.get_navy().get_navy_membership()) {
            unit_sum += state.military_definitions.unit_base_definitions[shp.get_ship().get_type()].colonial_points;
        }
    }
    float base_supply = std::max(1.0f, float(military::naval_supply_points(state, n)));
    float used_supply = float(military::naval_supply_points_used(state, n));
    float pts_factor = used_supply > base_supply ? std::max(0.0f, 2.0f - used_supply / base_supply) : 1.0f;
    points += unit_sum * pts_factor * state.defines.colonial_points_from_supply_factor;
    return points;
}
 
float colonial_points_from_naval_bases(sys::state& state, dcon::nation_id n) {
    float points = 0.f;
    /*
    Naval bases: determined by level and the building definition, except you get only define:
    COLONIAL_POINTS_FOR_NON_CORE_BASE (a flat rate) for naval bases not in a core province and not connected by land to
    the capital.
    */
    for(auto p : state.world.nation_get_province_ownership(n)) {
        auto nb_rank = state.world.province_get_building_level(p.get_province(), uint8_t(economy::province_building_type::naval_base));
        if(nb_rank > 0) {
            if(p.get_province().get_connected_region_id() == state.world.province_get_connected_region_id(state.world.nation_get_capital(n))
                || p.get_province().get_is_owner_core()) {
                if(p.get_province().get_is_owner_core()) {
                    points += float(state.economy_definitions.building_definitions[int32_t(economy::province_building_type::naval_base)].colonial_points[nb_rank - 1]);
                } else {
                    points += state.defines.colonial_points_for_non_core_base;
                }
            }
        }
    }
    /*
    Flat rate for overseas coastal states
    */
    for(auto si : state.world.nation_get_state_ownership(n)) {
        auto scap = si.get_state().get_capital();
        if(scap.get_connected_region_id() != state.world.province_get_connected_region_id(state.world.nation_get_capital(n))) {
            if(province::state_is_coastal_non_core_nb(state, si.get_state())) {
                points += 1.0f;
            }
        }
    }
    return points;
}
 
float colonial_points_from_technology(sys::state& state, dcon::nation_id n) {
    float points = 0.f;
    state.world.for_each_technology([&](dcon::technology_id t) {
        if(state.world.nation_get_active_technologies(n, t))
            points += float(state.world.technology_get_colonial_points(t));
    });
    return points;
}
 
float used_colonial_points(sys::state& state, dcon::nation_id n) {
    float points = 0.f;
    /*
    Add total amount invested in colonization (the race stage, not colony states)
    */
    for(auto col : state.world.nation_get_colonization_as_colonizer(n)) {
        points += float(col.get_points_invested());
    }
    /*
    Add for each colonial province COLONIZATION_COLONY_PROVINCE_MAINTAINANCE
    Add infrastructure value of the province x COLONIZATION_COLONY_RAILWAY_MAINTAINANCE
    */
    for(auto prov : state.world.nation_get_province_ownership(n)) {
        if(prov.get_province().get_is_colonial()) {
            points += state.defines.colonization_colony_province_maintainance;
            points += state.economy_definitions.building_definitions[int32_t(economy::province_building_type::railroad)].infrastructure *
                prov.get_province().get_building_level(uint8_t(economy::province_building_type::railroad)) * state.defines.colonization_colony_railway_maintainance;
        }
    }
    return points;
}
 
int32_t free_colonial_points(sys::state& state, dcon::nation_id n) {
    /*
    Testing: Add COLONIZATION_COLONY_INDUSTRY_MAINTAINANCE per factory in a colony
    If we have done things correctly, no such thing should exist
    */
    return max_colonial_points(state, n) - int32_t(used_colonial_points(state, n));
}
 
int32_t max_colonial_points(sys::state& state, dcon::nation_id n) {
    /*
    Only nations with rank at least define: COLONIAL_RANK get colonial points.
    */
    if(state.world.nation_get_rank(n) <= state.defines.colonial_rank) {
        float points = 0.0f;
        return int32_t(colonial_points_from_naval_bases(state, n)) + int32_t(colonial_points_from_ships(state, n)) + int32_t(colonial_points_from_technology(state, n));
    } else {
        return 0;
    }
}
 
bool can_expand_colony(sys::state& state, dcon::nation_id n) {
    for(auto cols : state.world.nation_get_colonization_as_colonizer(n)) {
        auto state_colonization = state.world.state_definition_get_colonization(cols.get_state());
        auto num_colonizers = state_colonization.end() - state_colonization.begin();
        if(cols.get_state().get_colonization_stage() == uint8_t(3)) {
            return true;
        } else {
            if(province::can_invest_in_colony(state, n, cols.get_state())) {
                return true;
            }
        }
    }
    return false;
}
 
bool is_losing_colonial_race(sys::state& state, dcon::nation_id n) {
    for(auto cols : state.world.nation_get_colonization_as_colonizer(n)) {
        auto lvl = cols.get_level();
        for(auto ocol : state.world.state_definition_get_colonization(cols.get_state())) {
            if(lvl < ocol.get_level())
                return true;
        }
    }
    return false;
}
 
bool sphereing_progress_is_possible(sys::state& state, dcon::nation_id n) {
    for(auto it : state.world.nation_get_gp_relationship_as_great_power(n)) {
        if((it.get_status() & influence::is_banned) == 0) {
            if(it.get_influence() >= state.defines.increaseopinion_influence_cost
                && (influence::level_mask & it.get_status()) != influence::level_in_sphere
                && (influence::level_mask & it.get_status()) != influence::level_friendly) {
                return true;
            } else if(!(it.get_influence_target().get_in_sphere_of()) &&
                                it.get_influence() >= state.defines.addtosphere_influence_cost) {
                return true;
            } else if(it.get_influence_target().get_in_sphere_of() &&
                                (influence::level_mask & it.get_status()) == influence::level_friendly &&
                                it.get_influence() >= state.defines.removefromsphere_influence_cost) {
                return true;
            }
        }
    }
    return false;
}
 
bool has_political_reform_available(sys::state& state, dcon::nation_id n) {
    for(auto i : state.culture_definitions.political_issues) {
        auto current = state.world.nation_get_issues(n, i);
        for(auto o : state.world.issue_get_options(i)) {
            if(o && politics::can_enact_political_reform(state, n, o)) {
                return true;
            }
        }
    }
    return false;
}
 
bool has_social_reform_available(sys::state& state, dcon::nation_id n) {
    for(auto i : state.culture_definitions.social_issues) {
        auto current = state.world.nation_get_issues(n, i);
        for(auto o : state.world.issue_get_options(i)) {
            if(o && politics::can_enact_social_reform(state, n, o)) {
                return true;
            }
        }
    }
    return false;
}
 
bool has_reform_available(sys::state& state, dcon::nation_id n) {
    // At least define:MIN_DELAY_BETWEEN_REFORMS months must have passed since the last issue option change (for any type of
    // issue).
    auto last_date = state.world.nation_get_last_issue_or_reform_change(n);
    if(bool(last_date) && (last_date + int32_t(state.defines.min_delay_between_reforms * 30.0f)) > state.current_date)
        return false;
 
    if(state.world.nation_get_is_civilized(n)) {
        /*
        ### When a social/political reform is possible
        These are only available for civ nations. If it is "next step only" either the previous or next issue option must be in
        effect And it's `allow` trigger must be satisfied. Then. for each ideology, we test its `add_social_reform` or
        `remove_social_reform` (depending if we are increasing or decreasing, and substituting `political_reform` here as
        necessary), computing its modifier additively, and then adding the result x the fraction of the upperhouse that the
        ideology has to a running total. If the running total is > 0.5, the issue option can be implemented.
        */
        return has_political_reform_available(state, n) || has_social_reform_available(state, n);
    }
    /*
    ### When an economic/military reform is possible
    These are only available for unciv nations. Some of the rules are the same as for social/political reforms:  If it is "next
    step only" either the previous or next issue option must be in effect. And it's `allow` trigger must be satisfied. Where
    things are different: Each reform also has a cost in research points. This cost, however, can vary. The actual cost you must
    pay is multiplied by what I call the "reform factor" + 1. The reform factor is (sum of ideology-in-upper-house x
    add-reform-triggered-modifier) x define:ECONOMIC_REFORM_UH_FACTOR + the nation's self_unciv_economic/military_modifier + the
    unciv_economic/military_modifier of the nation it is in the sphere of (if any).
    */
    else {
        auto stored_rp = state.world.nation_get_research_points(n);
        for(auto i : state.culture_definitions.military_issues) {
            auto current = state.world.nation_get_reforms(n, i);
            for(auto o : state.world.reform_get_options(i)) {
                if(o && politics::can_enact_military_reform(state, n, o)) {
                    return true;
                }
            }
        }
        for(auto i : state.culture_definitions.economic_issues) {
            auto current = state.world.nation_get_reforms(n, i);
            for(auto o : state.world.reform_get_options(i)) {
                if(o && politics::can_enact_economic_reform(state, n, o)) {
                    return true;
                }
            }
        }
    }
    return false;
}
 
bool has_decision_available(sys::state& state, dcon::nation_id n) {
    for(uint32_t i = state.world.decision_size(); i-- > 0;) {
        dcon::decision_id did{dcon::decision_id::value_base_t(i)};
        if(!state.world.decision_get_hide_notification(did)) {
            auto lim = state.world.decision_get_potential(did);
            if(!lim || trigger::evaluate(state, lim, trigger::to_generic(n), trigger::to_generic(n), 0)) {
                auto allow = state.world.decision_get_allow(did);
                if(!allow || trigger::evaluate(state, allow, trigger::to_generic(n), trigger::to_generic(n), 0)) {
                    return true;
                }
            }
        }
    }
    return false;
}
 
void get_active_political_parties(sys::state& state, dcon::nation_id n, std::vector<dcon::political_party_id>& parties) {
    auto identity = state.world.nation_get_identity_from_identity_holder(n);
    auto start = state.world.national_identity_get_political_party_first(identity).id.index();
    auto end = start + state.world.national_identity_get_political_party_count(identity);
    for(int32_t i = start; i < end; i++) {
        auto pid = dcon::political_party_id(uint16_t(i));
        if(politics::political_party_is_active(state, n, pid)) {
            parties.push_back(pid);
        }
    }
}
 
void monthly_adjust_relationship(sys::state& state, dcon::nation_id a, dcon::nation_id b, float delta) {
    auto rel = state.world.get_diplomatic_relation_by_diplomatic_pair(a, b);
    if(!rel) {
        rel = state.world.force_create_diplomatic_relation(a, b);
    }
    auto& val = state.world.diplomatic_relation_get_value(rel);
    val = std::clamp(val + delta, -200.0f, std::max(val, 100.0f));
}
 
void update_revanchism(sys::state& state) {
    /*
    - revanchism: you get one point per unowned core if your primary culture is the dominant culture (culture with the most
    population) in the province, 0.25 points if it is not the dominant culture, and then that total is divided by the total number
    of your cores to get your revanchism percentage
    */
    for(auto n : state.world.in_nation) {
        auto owned = n.get_province_ownership();
        if(owned.begin() != owned.end()) {
            auto pc = n.get_primary_culture();
            int32_t total_num_cores = 0;
            float rpts = 0.0f;
            for(auto core : n.get_identity_from_identity_holder().get_core()) {
                ++total_num_cores;
                if(core.get_province().get_nation_from_province_ownership() != n) {
                    if(core.get_province().get_dominant_culture() == pc)
                        rpts += 1.0f;
                    else
                        rpts += 0.25f;
                }
            }
            if(total_num_cores > 0) {
                n.set_revanchism(rpts / float(total_num_cores));
            } else {
                n.set_revanchism(0.0f);
            }
        }
    }
}
 
void update_monthly_points(sys::state& state) {
    /*
    - Prestige: a nation with a prestige modifier gains that amount of prestige per month (on the 1st)
    */
 
    // Removed monthly prestige update: this is because technologies have a prestige effect that is supposed to act as a multiplier to earned prestige
    // while the other prestige modifiers are supposed to add monthly prestige
    // they need to be separated out from each other (even though they have the same name)
    // until we do that, removing ticking prestige is the easier fix
    
    //state.world.execute_serial_over_nation([&](auto ids) {
    //  auto pmod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::prestige);
    //  state.world.nation_set_prestige(ids, state.world.nation_get_prestige(ids) + pmod);
    //});
    /*
    - Infamy: a nation with a badboy modifier gains that amount of infamy per month
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto imod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::badboy);
        state.world.nation_set_infamy(ids, ve::max(state.world.nation_get_infamy(ids) + imod, 0.0f));
    });
    /*
    - War exhaustion: a nation with a war exhaustion modifier gains that much at the start of the month, and every month its war
    exhaustion is capped to its maximum-war-exhaustion modifier at most.
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto wmod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::war_exhaustion);
        auto wmax_mod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::max_war_exhaustion);
        state.world.nation_set_war_exhaustion(ids,
                ve::max(ve::min(state.world.nation_get_war_exhaustion(ids) + wmod, wmax_mod), 0.0f));
    });
    /*
    - Monthly plurality increase: plurality increases by average consciousness / 45 per month.
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto pmod = state.world.nation_get_demographics(ids, demographics::consciousness) /
                                ve::max(state.world.nation_get_demographics(ids, demographics::total), 1.0f) * 0.0222f;
        state.world.nation_set_plurality(ids, ve::max(ve::min(state.world.nation_get_plurality(ids) + pmod, 100.0f), 0.f));
    });
    /*
    - Monthly diplo-points: (1 + national-modifier-to-diplo-points + diplo-points-from-technology) x
    define:BASE_MONTHLY_DIPLOPOINTS (to a maximum of 9)
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto bmod = state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::diplomatic_points_modifier) + 1.0f;
        auto dmod = bmod * state.defines.base_monthly_diplopoints;
 
        state.world.nation_set_diplomatic_points(ids, ve::max(ve::min(state.world.nation_get_diplomatic_points(ids) + dmod, 9.0f), 0.f));
    });
    /*
    - Monthly suppression point gain: define:SUPPRESS_BUREAUCRAT_FACTOR x fraction-of-population-that-are-bureaucrats x
    define:SUPPRESSION_POINTS_GAIN_BASE x (suppression-points-from-technology + national-suppression-points-modifier + 1) (to a
    maximum of define:MAX_SUPPRESSION)
    */
    state.world.execute_serial_over_nation([&](auto ids) {
        auto bmod = (state.world.nation_get_modifier_values(ids, sys::national_mod_offsets::suppression_points_modifier) + 1.0f);
        auto cmod = (bmod * state.defines.suppression_points_gain_base) *
                                (state.world.nation_get_demographics(ids, demographics::to_key(state, state.culture_definitions.bureaucrat)) /
                                        ve::max(state.world.nation_get_demographics(ids, demographics::total), 1.0f) *
                                        state.defines.suppress_bureaucrat_factor);
 
        state.world.nation_set_suppression_points(ids, ve::max(ve::min(state.world.nation_get_suppression_points(ids) + cmod, state.defines.max_suppression), 0.f));
    });
    /*
    - Monthly relations adjustment = +0.25 for subjects/overlords, -0.01 for being at war, +0.05 if adjacent and both are at
    peace, +0.025 for having military access, -0.15 for being able to use a CB against each other (-0.30 if it goes both ways)
    - Once relations are at 100, monthly increases cannot take them higher
    */
    for(auto so : state.world.in_overlord) {
        monthly_adjust_relationship(state, so.get_ruler(), so.get_subject(), 0.25f);
    }
    for(auto an : state.world.in_nation_adjacency) {
        if(an.get_connected_nations(0).get_is_at_war() == false && an.get_connected_nations(1).get_is_at_war() == false)
            monthly_adjust_relationship(state, an.get_connected_nations(0), an.get_connected_nations(1), 0.05f);
        if(military::can_use_cb_against(state, an.get_connected_nations(0), an.get_connected_nations(1))) {
            monthly_adjust_relationship(state, an.get_connected_nations(0), an.get_connected_nations(1), -0.15f);
        }
        if(military::can_use_cb_against(state, an.get_connected_nations(1), an.get_connected_nations(0))) {
            monthly_adjust_relationship(state, an.get_connected_nations(0), an.get_connected_nations(1), -0.15f);
        }
    }
    for(auto i : state.world.in_unilateral_relationship) {
        if(i.get_military_access()) {
            monthly_adjust_relationship(state, i.get_source(), i.get_target(), 0.025f);
        }
    }
    for(auto w : state.world.in_war) {
        for(auto n : w.get_war_participant()) {
            for(auto m : w.get_war_participant()) {
                if(n.get_is_attacker() != m.get_is_attacker()) {
                    monthly_adjust_relationship(state, n.get_nation(), m.get_nation(), -0.005f);
                }
            }
        }
    }
 
    update_revanchism(state);
}
 
float get_treasury(sys::state& state, dcon::nation_id n) {
    return state.world.nation_get_stockpiles(n, economy::money);
}
 
float get_bank_funds(sys::state& state, dcon::nation_id n) {
    return 0.0f;
}
 
float get_debt(sys::state& state, dcon::nation_id n) {
    auto v = state.world.nation_get_stockpiles(n, economy::money);
    return v < 0.0f ? -v : 0.0f;
}
 
float tariff_efficiency(sys::state& state, dcon::nation_id n) {
    auto eff_mod = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::tariff_efficiency_modifier);
    auto adm_eff = state.world.nation_get_administrative_efficiency(n);
    return std::clamp(state.defines.base_tariff_efficiency + eff_mod + adm_eff, 0.01f, 1.f);
}
 
float tax_efficiency(sys::state& state, dcon::nation_id n) {
    auto eff_mod = state.world.nation_get_modifier_values(n, sys::national_mod_offsets::tax_efficiency);
    return std::clamp(state.defines.base_country_tax_efficiency + eff_mod, 0.1f, 1.f);
}
 
bool is_involved_in_crisis(sys::state const& state, dcon::nation_id n) {
    if(n == state.primary_crisis_attacker)
        return true;
    if(n == state.primary_crisis_defender)
        return true;
    for(auto& par : state.crisis_participants) {
        if(!par.id)
            return false;
        if(par.id == n)
            return true;
    }
 
    return false;
}
bool is_committed_in_crisis(sys::state const& state, dcon::nation_id n) {
    if(n == state.primary_crisis_attacker)
        return true;
    if(n == state.primary_crisis_defender)
        return true;
    for(auto& par : state.crisis_participants) {
        if(!par.id)
            return false;
        if(par.id == n)
            return !par.merely_interested;
    }
    return false;
}
 
void adjust_relationship(sys::state& state, dcon::nation_id a, dcon::nation_id b, float delta) {
    if(state.world.nation_get_owned_province_count(a) == 0 || state.world.nation_get_owned_province_count(a) == 0)
        return;
 
    auto rel = state.world.get_diplomatic_relation_by_diplomatic_pair(a, b);
    if(!rel) {
        rel = state.world.force_create_diplomatic_relation(a, b);
    }
    auto& val = state.world.diplomatic_relation_get_value(rel);
    val = std::clamp(val + delta, -200.0f, 200.0f);
}
 
void create_nation_based_on_template(sys::state& state, dcon::nation_id n, dcon::nation_id base) {
    state.world.nation_set_is_civilized(n, state.world.nation_get_is_civilized(base));
    state.world.nation_set_national_value(n, state.world.nation_get_national_value(base));
    state.world.nation_set_tech_school(n, state.world.nation_get_tech_school(base));
    state.world.nation_set_government_type(n, state.world.nation_get_government_type(base));
    state.world.nation_set_plurality(n, state.world.nation_get_plurality(base));
    state.world.nation_set_prestige(n, 0.0f);
    state.world.nation_set_infamy(n, 0.0f);
    state.world.nation_set_revanchism(n, 0.0f);
    state.world.for_each_technology([&](dcon::technology_id t) {
        state.world.nation_set_active_technologies(n, t, state.world.nation_get_active_technologies(base, t));
    });
    state.world.for_each_invention([&](dcon::invention_id t) {
        state.world.nation_set_active_inventions(n, t, state.world.nation_get_active_inventions(base, t));
    });
    state.world.for_each_issue(
            [&](dcon::issue_id t) { state.world.nation_set_issues(n, t, state.world.nation_get_issues(base, t)); });
    if(!state.world.nation_get_is_civilized(base)) {
        state.world.for_each_reform(
                [&](dcon::reform_id t) { state.world.nation_set_reforms(n, t, state.world.nation_get_reforms(base, t)); });
    }
    state.world.nation_set_last_issue_or_reform_change(n, sys::date{});
    culture::update_nation_issue_rules(state, n);
    state.world.for_each_ideology(
            [&](dcon::ideology_id i) { state.world.nation_set_upper_house(n, i, state.world.nation_get_upper_house(base, i)); });
    state.world.nation_set_is_substate(n, false);
    //for(int32_t i = 0; i < state.national_definitions.num_allocated_national_flags; ++i) {
    //  state.world.nation_set_flag_variables(n, dcon::national_flag_id{dcon::national_flag_id::value_base_t(i)}, false);
    //}
    //for(int32_t i = 0; i < state.national_definitions.num_allocated_national_variables; ++i) {
    //  state.world.nation_set_variables(n, dcon::national_variable_id{dcon::national_variable_id::value_base_t(i)}, 0.0f);
    //}
    state.world.for_each_commodity([&](dcon::commodity_id t) {
        state.world.nation_set_rgo_goods_output(n, t, state.world.nation_get_rgo_goods_output(base, t));
        state.world.nation_set_factory_goods_output(n, t, state.world.nation_get_factory_goods_output(base, t));
        state.world.nation_set_rgo_size(n, t, state.world.nation_get_rgo_size(base, t));
        state.world.nation_set_factory_goods_throughput(n, t, state.world.nation_get_factory_goods_throughput(base, t));
    });
    state.world.for_each_rebel_type([&](dcon::rebel_type_id t) {
        state.world.nation_set_rebel_org_modifier(n, t, state.world.nation_get_rebel_org_modifier(base, t));
    });
    for(uint32_t i = 0; i < state.military_definitions.unit_base_definitions.size(); ++i) {
        state.world.nation_set_unit_stats(n, dcon::unit_type_id{dcon::unit_type_id::value_base_t(i)},
                state.world.nation_get_unit_stats(base, dcon::unit_type_id{dcon::unit_type_id::value_base_t(i)}));
        state.world.nation_set_active_unit(n, dcon::unit_type_id{dcon::unit_type_id::value_base_t(i)},
                state.world.nation_get_active_unit(base, dcon::unit_type_id{dcon::unit_type_id::value_base_t(i)}));
    }
    for(uint32_t i = 0; i < state.culture_definitions.crimes.size(); ++i) {
        state.world.nation_set_active_crime(n, dcon::crime_id{dcon::crime_id::value_base_t(i)},
                state.world.nation_get_active_crime(base, dcon::crime_id{dcon::crime_id::value_base_t(i)}));
    }
    state.world.for_each_factory_type([&](dcon::factory_type_id t) {
        state.world.nation_set_active_building(n, t, state.world.nation_get_active_building(base, t));
    });
    state.world.nation_set_has_gas_attack(n, state.world.nation_get_has_gas_attack(base));
    state.world.nation_set_has_gas_defense(n, state.world.nation_get_has_gas_defense(base));
    for(auto t = economy::province_building_type::railroad; t != economy::province_building_type::last; t = economy::province_building_type(uint8_t(t) + 1)) {
        state.world.nation_set_max_building_level(n, uint8_t(t), state.world.nation_get_max_building_level(base, uint8_t(t)));
    }
    state.world.nation_set_election_ends(n, sys::date{0});
    state.world.nation_set_education_spending(n, int8_t(100));
    state.world.nation_set_military_spending(n, int8_t(100));
    state.world.nation_set_administrative_spending(n, int8_t(100));
    state.world.nation_set_social_spending(n, int8_t(100));
    state.world.nation_set_land_spending(n, int8_t(100));
    state.world.nation_set_naval_spending(n, int8_t(100));
    state.world.nation_set_construction_spending(n, int8_t(100));
    state.world.nation_set_effective_land_spending(n, 1.0f);
    state.world.nation_set_effective_naval_spending(n, 1.0f);
    state.world.nation_set_effective_construction_spending(n, 1.0f);
    state.world.nation_set_spending_level(n, 1.0f);
    state.world.nation_set_poor_tax(n, int8_t(50));
    state.world.nation_set_middle_tax(n, int8_t(50));
    state.world.nation_set_rich_tax(n, int8_t(50));
    state.world.nation_set_tariffs(n, int8_t(0));
 
    auto base_ruling_ideology = state.world.political_party_get_ideology(state.world.nation_get_ruling_party(base));
 
    auto identity = state.world.nation_get_identity_from_identity_holder(n);
    auto start = state.world.national_identity_get_political_party_first(identity).id.index();
    auto end = start + state.world.national_identity_get_political_party_count(identity);
 
    for(int32_t i = start; i < end; i++) {
        auto pid = dcon::political_party_id(dcon::political_party_id::value_base_t(i));
        if(politics::political_party_is_active(state, n, pid) && state.world.political_party_get_ideology(pid) == base_ruling_ideology) {
            state.world.nation_set_ruling_party(n, pid);
            break;
        }
    }
    if(!state.world.nation_get_ruling_party(n)) {
        for(int32_t i = start; i < end; i++) {
            auto pid = dcon::political_party_id(dcon::political_party_id::value_base_t(i));
            if(politics::political_party_is_active(state, n, pid)) {
                state.world.nation_set_ruling_party(n, pid);
                break;
            }
        }
    }
 
    // populate key values based on national identity
    auto tag = fatten(state.world, state.world.nation_get_identity_from_identity_holder(n));
    state.world.nation_set_primary_culture(n, tag.get_primary_culture());
    state.world.nation_set_religion(n, tag.get_religion());
    if(auto cg = tag.get_culture_group_from_cultural_union_of(); cg) {
        for(auto c : cg.get_culture_group_membership()) {
            if(c.get_member().id != tag.get_primary_culture().id) {
                state.world.nation_set_accepted_cultures(n, c.get_member(), true);
            }
        }
    }
 
    politics::update_displayed_identity(state, n);
}
 
void run_gc(sys::state& state) {
    //cleanup (will set gc pending)
    for(const auto n : state.world.in_nation) {
        if(n.get_marked_for_gc()) {
            n.set_marked_for_gc(false);
            if(auto lprovs = n.get_province_ownership(); lprovs.begin() == lprovs.end()) {
                nations::cleanup_nation(state, n);
            }
        }
    }
    if(state.national_definitions.gc_pending) {
        state.national_definitions.gc_pending = false;
        for(uint32_t i = state.world.rebel_faction_size(); i-- > 0; ) {
            dcon::rebel_faction_id rf{dcon::rebel_faction_id::value_base_t(i) };
            auto within = state.world.rebel_faction_get_ruler_from_rebellion_within(rf);
            if(!within)
                state.world.delete_rebel_faction(rf);
        }
    }
}
 
void cleanup_nation(sys::state& state, dcon::nation_id n) {
    auto old_ident = state.world.nation_get_identity_from_identity_holder(n);
 
    auto control = state.world.nation_get_province_control(n);
    while(control.begin() != control.end()) {
        province::set_province_controller(state, (*control.begin()).get_province(), (*control.begin()).get_province().get_nation_from_province_ownership());
    }
 
    auto leaders = state.world.nation_get_leader_loyalty(n);
    while(leaders.begin() != leaders.end()) {
        state.world.delete_leader((*leaders.begin()).get_leader());
    }
 
    auto ss_range = state.world.nation_get_overlord_as_ruler(n);
    while(ss_range.begin() != ss_range.end()) {
        auto subj = (*ss_range.begin()).get_subject();
        subj.set_is_substate(false);
        nations::release_vassal(state, (*ss_range.begin()));
    }
 
    auto ol = state.world.nation_get_overlord_as_subject(n);
    if(state.world.overlord_get_ruler(ol)) {
        release_vassal(state, ol);
    }
 
    //auto armies = state.world.nation_get_army_control(n);
    //while(armies.begin() != armies.end()) {
    //  military::cleanup_army(state, (*armies.begin()).get_army());
    //}
 
    //auto navies = state.world.nation_get_navy_control(n);
    //while(navies.begin() != navies.end()) {
    //  military::cleanup_navy(state, (*navies.begin()).get_navy());
    //}
 
    //auto rebels = state.world.nation_get_rebellion_within(n);
    //while(rebels.begin() != rebels.end()) {
    //  rebel::delete_faction(state, (*rebels.begin()).get_rebels());
    //}
 
    auto diprel = state.world.nation_get_diplomatic_relation(n);
    while(diprel.begin() != diprel.end()) {
        state.world.delete_diplomatic_relation(*diprel.begin());
    }
 
    auto uni_diprel = state.world.nation_get_unilateral_relationship_as_source(n);
    while(uni_diprel.begin() != uni_diprel.end()) {
        state.world.delete_unilateral_relationship(*uni_diprel.begin());
    }
 
    auto uni_diprelb = state.world.nation_get_unilateral_relationship_as_target(n);
    while(uni_diprelb.begin() != uni_diprelb.end()) {
        state.world.delete_unilateral_relationship(*uni_diprelb.begin());
    }
 
    auto movements = state.world.nation_get_movement_within(n);
    while(movements.begin() != movements.end()) {
        state.world.delete_movement((*movements.begin()).get_movement());
    }
 
    // transfer flags and variables to new holder
    state.world.delete_nation(n);
    auto new_ident_holder = state.world.create_nation();
    state.world.try_create_identity_holder(new_ident_holder, old_ident);
 
    for(auto o : state.world.in_nation) {
        if(o.get_in_sphere_of() == n) {
            notification::post(state, notification::message{
                [o, n](sys::state& state, text::layout_base& contents) {
                    text::add_line(state, contents, "msg_rem_sphere_1", text::variable_type::x, n, text::variable_type::y, o);
                },
                "msg_rem_sphere_title",
                n, o, dcon::nation_id{},
                sys::message_base_type::rem_sphere
            });
            o.set_in_sphere_of(dcon::nation_id{});
        }
    }
 
    state.national_definitions.gc_pending = true;
    state.diplomatic_cached_values_out_of_date = true; // refresh stored counts of allies, vassals, etc
    politics::update_displayed_identity(state, n);
 
    if(n == state.local_player_nation) {
        // Player was defeated, show end screen
        game_scene::switch_scene(state, game_scene::scene_id::end_screen);
    }
}
 
void adjust_prestige(sys::state& state, dcon::nation_id n, float delta) {
    float prestige_multiplier = 1.0f + state.world.nation_get_modifier_values(n, sys::national_mod_offsets::prestige);
    float v = state.world.nation_get_prestige(n) + (delta > 0 ? (delta * prestige_multiplier) : delta);
    float new_prestige = std::clamp(v, 0.f, max_prestige);
    state.world.nation_set_prestige(n, new_prestige);
}
 
bool destroy_vassal_relationships(sys::state& state, dcon::nation_id n) {
    auto ov_rel = state.world.nation_get_overlord_as_ruler(n);
    for(auto it = ov_rel.begin(); it != ov_rel.end(); ++it) {
        if((*it).get_subject().get_is_substate() == false) {
            release_vassal(state, *it);
            return true;
        }
    }
    return false;
}
 
void destroy_diplomatic_relationships(sys::state& state, dcon::nation_id n) {
    {
        auto gp_relationships = state.world.nation_get_gp_relationship_as_great_power(n);
        while(gp_relationships.begin() != gp_relationships.end()) {
            auto i = (*gp_relationships.begin()).get_influence_target();
            if(i.get_in_sphere_of() == n)
                i.set_in_sphere_of(dcon::nation_id{});
            state.world.delete_gp_relationship(*(gp_relationships.begin()));
        }
    }
    {
        auto gp_relationships = state.world.nation_get_gp_relationship_as_influence_target(n);
        while(gp_relationships.begin() != gp_relationships.end()) {
            state.world.delete_gp_relationship(*(gp_relationships.begin()));
        }
        state.world.nation_set_in_sphere_of(n, dcon::nation_id{});
    }
    {
        for(auto rel : state.world.nation_get_diplomatic_relation(n)) {
            break_alliance(state, rel);
        }
    }
    {
        auto ov_rel = state.world.nation_get_overlord_as_ruler(n);
        bool released_vassal = true;
        while(released_vassal) {
            released_vassal = destroy_vassal_relationships(state, n);
        }
    }
}
void release_vassal(sys::state& state, dcon::overlord_id rel) {
    auto vas = state.world.overlord_get_subject(rel);
    auto ol = state.world.overlord_get_ruler(rel);
    if(ol) {
        if(state.world.nation_get_is_substate(vas)) {
            state.world.nation_set_is_substate(vas, false);
            state.world.nation_get_substates_count(ol)--;
        }
        state.world.nation_get_vassals_count(ol)--;
        state.world.delete_overlord(rel);
        politics::update_displayed_identity(state, vas);
        // TODO: notify player
    }
}
 
void make_vassal(sys::state& state, dcon::nation_id subject, dcon::nation_id overlord) {
    if(subject == overlord)
        return;
    if(state.world.nation_get_owned_province_count(subject) == 0 || state.world.nation_get_owned_province_count(overlord) == 0)
        return;
 
    auto current_ol = state.world.nation_get_overlord_as_subject(subject);
    auto current_ruler = state.world.overlord_get_ruler(current_ol);
 
    if(current_ruler && current_ruler != overlord) {
        release_vassal(state, current_ol);
    }
    if(current_ruler == overlord) {
        if(state.world.nation_get_is_substate(subject)) {
            state.world.nation_set_is_substate(subject, false);
            state.world.nation_get_substates_count(current_ruler)--;
        }
    } else {
        state.world.force_create_overlord(subject, overlord);
        state.world.nation_get_vassals_count(overlord)++;
        politics::update_displayed_identity(state, subject);
    }
}
void make_substate(sys::state& state, dcon::nation_id subject, dcon::nation_id overlord) {
    if(subject == overlord)
        return;
    if(state.world.nation_get_owned_province_count(subject) == 0 || state.world.nation_get_owned_province_count(overlord) == 0)
        return;
 
    auto current_ol = state.world.nation_get_overlord_as_subject(subject);
    auto current_ruler = state.world.overlord_get_ruler(current_ol);
 
    if(current_ruler && current_ruler != overlord) {
        release_vassal(state, current_ol);
    }
    if(current_ruler == overlord) {
        if(!state.world.nation_get_is_substate(subject)) {
            state.world.nation_set_is_substate(subject, true);
            state.world.nation_get_substates_count(current_ruler)++;
        }
    } else {
        state.world.force_create_overlord(subject, overlord);
        state.world.nation_set_is_substate(subject, true);
        state.world.nation_get_vassals_count(overlord)++;
        state.world.nation_get_substates_count(current_ruler)++;
        politics::update_displayed_identity(state, subject);
    }
}
 
void break_alliance(sys::state& state, dcon::diplomatic_relation_id rel) {
    if(state.world.diplomatic_relation_get_are_allied(rel)) {
        state.world.diplomatic_relation_set_are_allied(rel, false);
        state.world.nation_get_allies_count(state.world.diplomatic_relation_get_related_nations(rel, 0))--;
        state.world.nation_get_allies_count(state.world.diplomatic_relation_get_related_nations(rel, 1))--;
    }
}
 
void break_alliance(sys::state& state, dcon::nation_id a, dcon::nation_id b) {
    if(auto r = state.world.get_diplomatic_relation_by_diplomatic_pair(a, b); r) {
        if(state.world.diplomatic_relation_get_are_allied(r)) {
            break_alliance(state, r);
            if(a != state.local_player_nation) {
                notification::post(state, notification::message{
                    [from = text::get_name(state, a), to = text::get_name(state, b)](sys::state& state, text::layout_base& contents) {
                        text::add_line(state, contents, "msg_alliance_ends_1", text::variable_type::x, to, text::variable_type::y, from);
                    },
                    "msg_alliance_ends_title",
                    a, b, dcon::nation_id{},
                    sys::message_base_type::alliance_ends
                });
            }
        }
    }
}
void make_alliance(sys::state& state, dcon::nation_id a, dcon::nation_id b) {
    if(a == b)
        return;
    auto r = state.world.get_diplomatic_relation_by_diplomatic_pair(a, b);
    if(!r) {
        r = state.world.force_create_diplomatic_relation(a, b);
    }
    if(!state.world.diplomatic_relation_get_are_allied(r)) {
        state.world.nation_get_allies_count(a)++;
        state.world.nation_get_allies_count(b)++;
        state.world.diplomatic_relation_set_are_allied(r, true);
    }
 
    if(a != state.local_player_nation && b != state.local_player_nation) {
        notification::post(state, notification::message{
            [from = a, to = b](sys::state& state, text::layout_base& contents) {
                text::add_line(state, contents, "msg_alliance_starts_1", text::variable_type::x, to, text::variable_type::y, from);
            },
            "msg_alliance_starts_title",
            a, b, dcon::nation_id{},
            sys::message_base_type::alliance_starts
        });
    }
}
 
bool other_nation_is_influencing(sys::state& state, dcon::nation_id target, dcon::gp_relationship_id rel) {
    for(auto orel : state.world.nation_get_gp_relationship_as_influence_target(target)) {
        if(orel != rel && orel.get_influence() > 0.0f)
            return true;
    }
    return false;
}
 
bool can_accumulate_influence_with(sys::state& state, dcon::nation_id gp, dcon::nation_id target, dcon::gp_relationship_id rel) {
    if((state.world.gp_relationship_get_status(rel) & influence::is_banned) != 0)
        return false;
    if(military::has_truce_with(state, gp, target))
        return false;
    if(military::are_at_war(state, gp, target))
        return false;
    if(state.world.gp_relationship_get_influence(rel) >= state.defines.max_influence
        && !other_nation_is_influencing(state, target, rel))
        return false;
    return true;
}
 
float get_base_shares(sys::state& state, dcon::gp_relationship_id gp, float total_gain, int32_t total_influence_shares) {
    if(total_influence_shares == 0)
        return 0.f;
    switch(state.world.gp_relationship_get_status(gp) & influence::priority_mask) {
    case influence::priority_one:
        return total_gain / float(total_influence_shares);
    case influence::priority_two:
        return 2.0f * total_gain / float(total_influence_shares);
    case influence::priority_three:
        return 3.0f * total_gain / float(total_influence_shares);
    default:
    case influence::priority_zero:
        return 0.0f;
    }
}
 
bool has_sphere_neighbour(sys::state& state, dcon::nation_id n, dcon::nation_id target) {
    for(auto g : state.world.nation_get_nation_adjacency(target)) {
        if(g.get_connected_nations(0) != target && g.get_connected_nations(0).get_in_sphere_of() == n)
            return true;
        if(g.get_connected_nations(1) != target && g.get_connected_nations(1).get_in_sphere_of() == n)
            return true;
    }
    return false;
}
 
void update_influence(sys::state& state) {
    for(auto rel : state.world.in_gp_relationship) {
        if(rel.get_penalty_expires_date() == state.current_date) {
            rel.set_status(rel.get_status() & ~(influence::is_banned | influence::is_discredited));
        }
    }
 
    for(auto& grn : state.great_nations) {
        dcon::nation_fat_id n = fatten(state.world, grn.nation);
        if(!is_great_power(state, n))
            continue; // skip
 
        int32_t total_influence_shares = 0;
        for(auto rel : n.get_gp_relationship_as_great_power()) {
            if(can_accumulate_influence_with(state, n, rel.get_influence_target(), rel)) {
                switch(rel.get_status() & influence::priority_mask) {
                case influence::priority_one:
                    total_influence_shares += 1;
                    break;
                case influence::priority_two:
                    total_influence_shares += 2;
                    break;
                case influence::priority_three:
                    total_influence_shares += 3;
                    break;
                default:
                case influence::priority_zero:
                    break;
                }
            }
        }
 
        if(total_influence_shares > 0) {
            /*
            The nation gets a daily increase of define:BASE_GREATPOWER_DAILY_INFLUENCE x (national-modifier-to-influence-gain + 1)
            x (technology-modifier-to-influence + 1). This is then divided among the nations they are accumulating influence with
            in proportion to their priority (so a target with priority 2 receives 2 shares instead of 1, etc).
            */
            float total_gain = state.defines.base_greatpower_daily_influence *
                (1.0f + n.get_modifier_values(sys::national_mod_offsets::influence_modifier)) *
                (1.0f + n.get_modifier_values(sys::national_mod_offsets::influence));
 
            /*
            This influence value does not translate directly into influence with the target nation. Instead it is first multiplied
            by the following factor: 1 + define:DISCREDIT_INFLUENCE_GAIN_FACTOR (if discredited) +
            define:NEIGHBOUR_BONUS_INFLUENCE_PERCENT (if the nations are adjacent) +
            define:SPHERE_NEIGHBOUR_BONUS_INFLUENCE_PERCENT (if some member of the influencing nation's sphere is adjacent but not
            the influencing nation itself) + define:OTHER_CONTINENT_BONUS_INFLUENCE_PERCENT (if the influencing nation and the
            target have capitals on different continents) + define:PUPPET_BONUS_INFLUENCE_PERCENT (if the target is a vassal of
            the influencer) + relation-value / define:RELATION_INFLUENCE_MODIFIER + define:INVESTMENT_INFLUENCE_DEFENCE x
            fraction-of-influencer's-foreign-investment-out-of-total-foreign-investment +
            define:LARGE_POPULATION_INFLUENCE_PENALTY x target-population / define:LARGE_POPULATION_INFLUENCE_PENALTY_CHUNK (if
            the target nation has population greater than define:LARGE_POPULATION_LIMIT) + (1 - target-score / influencer-score)^0
            */
 
            float gp_score = n.get_industrial_score() + n.get_military_score() + prestige_score(state, n);
 
            for(auto rel : n.get_gp_relationship_as_great_power()) {
                if(can_accumulate_influence_with(state, n, rel.get_influence_target(), rel)) {
                    float base_shares = get_base_shares(state, rel, total_gain, total_influence_shares);
                    if(base_shares <= 0.0f)
                        continue; // skip calculations for priority zero nations
 
                    float total_fi = nations::get_foreign_investment(state, rel.get_influence_target());
                    auto gp_invest = state.world.unilateral_relationship_get_foreign_investment(
                        state.world.get_unilateral_relationship_by_unilateral_pair(rel.get_influence_target(), n));
 
                    float discredit_factor =
                            (rel.get_status() & influence::is_discredited) != 0 ? state.defines.discredit_influence_gain_factor : 0.0f;
                    float neighbor_factor = bool(state.world.get_nation_adjacency_by_nation_adjacency_pair(n, rel.get_influence_target()))
                                                                            ? state.defines.neighbour_bonus_influence_percent
                                                                            : 0.0f;
                    float sphere_neighbor_factor = nations::has_sphere_neighbour(state, n, rel.get_influence_target())
                        ? state.defines.sphere_neighbour_bonus_influence_percent
                        : 0.0f;
                    float continent_factor = n.get_capital().get_continent() != rel.get_influence_target().get_capital().get_continent()
                                                                             ? state.defines.other_continent_bonus_influence_percent
                                                                             : 0.0f;
                    float puppet_factor = rel.get_influence_target().get_overlord_as_subject().get_ruler() == n
                                                                        ? state.defines.puppet_bonus_influence_percent
                                                                        : 0.0f;
                    float relationship_factor = state.world.diplomatic_relation_get_value(state.world.get_diplomatic_relation_by_diplomatic_pair(n, rel.get_influence_target())) / state.defines.relation_influence_modifier;
 
                    float investment_factor = total_fi > 0.0f ? state.defines.investment_influence_defense * gp_invest / total_fi : 0.0f;
                    float pop_factor =
                            rel.get_influence_target().get_demographics(demographics::total) > state.defines.large_population_limit
                                    ? state.defines.large_population_influence_penalty *
                                                rel.get_influence_target().get_demographics(demographics::total) /
                                                state.defines.large_population_influence_penalty_chunk
                                    : 0.0f;
                    float score_factor = gp_score > 0.0f
                        ? std::max(1.0f - (rel.get_influence_target().get_industrial_score() + rel.get_influence_target().get_military_score() + prestige_score(state, rel.get_influence_target())) / gp_score,  0.0f)
                        : 0.0f;
 
                    float total_multiplier = 1.0f + discredit_factor + neighbor_factor + sphere_neighbor_factor + continent_factor + puppet_factor + relationship_factor + investment_factor + pop_factor + score_factor;
 
                    auto gain_amount = base_shares * total_multiplier;
 
                    /*
                    Any influence that accumulates beyond the max (define:MAX_INFLUENCE) will be subtracted from the influence of
                    the great power with the most influence (other than the influencing nation).
                    */
 
                    rel.get_influence() += std::max(0.0f, gain_amount);
                    if(rel.get_influence() > state.defines.max_influence) {
                        auto overflow = rel.get_influence() - state.defines.max_influence;
                        rel.get_influence() = state.defines.max_influence;
 
                        dcon::gp_relationship_id other_rel;
                        for(auto orel : rel.get_influence_target().get_gp_relationship_as_influence_target()) {
                            if(orel != rel) {
                                if(orel.get_influence() > state.world.gp_relationship_get_influence(other_rel)) {
                                    other_rel = orel;
                                }
                            }
                        }
 
                        if(other_rel) {
                            auto& orl_i = state.world.gp_relationship_get_influence(other_rel);
                            orl_i = std::max(0.0f, orl_i - overflow);
                        }
                    }
                }
            }
        }
    }
}
 
bool can_put_flashpoint_focus_in_state(sys::state& state, dcon::state_instance_id s, dcon::nation_id fp_nation) {
    auto fp_focus_nation = fatten(state.world, fp_nation);
    auto si = fatten(state.world, s);
 
    auto fp_ident = fp_focus_nation.get_identity_from_identity_holder();
 
    auto owner = si.get_nation_from_state_ownership();
 
    if(owner == fp_nation)
        return false;
 
    if(nations::nation_accepts_culture(state, owner, fp_ident.get_primary_culture()))
        return false;
    if(fp_ident.get_is_not_releasable())
        return false;
 
    if(fp_focus_nation.get_rank() > uint16_t(state.defines.colonial_rank)) {
        auto d = si.get_definition();
        for(auto p : state.world.state_definition_get_abstract_state_membership(d)) {
            if(p.get_province().get_nation_from_province_ownership() == owner) {
                if(state.world.get_core_by_prov_tag_key(p.get_province(), fp_ident))
                    return true;
            }
        }
    }
 
    return false;
}
 
void monthly_flashpoint_update(sys::state& state) {
    // determine which states have flashpoints
    /*
    Whether a state contains a flashpoint depends on: whether a province in the state contains a core other than that of its owner
    and of a tag that is marked as releasable (i.e. not a cultural union core), and which has a primary culture that is not the
    primary culture or an accepted culture of its owner. If any core qualifies, the state is considered to be a flashpoint, and
    its default flashpoint tag will be the qualifying core whose culture has the greatest population in the state.
    */
    for(auto si : state.world.in_state_instance) {
        auto owner = si.get_nation_from_state_ownership();
        auto owner_tag = owner.get_identity_from_identity_holder();
 
        auto owner_accepts_culture = [&](dcon::culture_id c) {
            return owner.get_primary_culture() == c || nations::nation_accepts_culture(state, owner, c);
        };
 
        if(auto fp_focus_nation = si.get_nation_from_flashpoint_focus(); fp_focus_nation) {
            if(can_put_flashpoint_focus_in_state(state, si, fp_focus_nation)) {
                si.set_flashpoint_tag(fp_focus_nation.get_identity_from_identity_holder());
                continue; // done, skip remainder
            } else {
                // remove focus
                si.set_nation_from_flashpoint_focus(dcon::nation_id{});
            }
        }
 
        dcon::national_identity_id qualifying_tag;
 
        auto d = si.get_definition();
        for(auto p : state.world.state_definition_get_abstract_state_membership(d)) {
            if(p.get_province().get_nation_from_province_ownership() == owner) {
                for(auto cores : p.get_province().get_core()) {
                    if(!cores.get_identity().get_is_not_releasable()
                        && !owner_accepts_culture(cores.get_identity().get_primary_culture())
                        && (!qualifying_tag
                            || si.get_demographics(demographics::to_key(state, cores.get_identity().get_primary_culture())) >
                            si.get_demographics(demographics::to_key(state, state.world.national_identity_get_primary_culture(qualifying_tag))))) {
 
                        qualifying_tag = cores.get_identity();
                    }
                }
            }
        }
 
        si.set_flashpoint_tag(qualifying_tag);
 
    }
 
    // set which nations contain such states
    state.world.execute_serial_over_nation(
            [&](auto ids) { state.world.nation_set_has_flash_point_state(ids, ve::mask_vector(false)); });
    for(auto si : state.world.in_state_instance) {
        if(si.get_flashpoint_tag()) {
            si.get_nation_from_state_ownership().set_has_flash_point_state(true);
        }
    }
 
    // set which of those nations are targeted by some cb
    state.world.execute_serial_over_nation(
            [&](auto ids) { state.world.nation_set_is_target_of_some_cb(ids, ve::mask_vector(false)); });
 
    for(auto target : state.world.in_nation) {
        if(target.get_has_flash_point_state()) {
            // check all other nations to see if they hold a cb
            for(auto actor : state.world.in_nation) {
                auto owned = actor.get_province_ownership();
                if(actor != target && owned.begin() != owned.end()) {
                    if(military::can_use_cb_against(state, actor, target)) {
                        target.set_is_target_of_some_cb(true);
                        break;
                    }
                }
            }
        }
    }
}
 
void daily_update_flashpoint_tension(sys::state& state) {
    for(auto si : state.world.in_state_instance) {
        if(si.get_flashpoint_tag()) {
            float total_increase = 0.0f;
            /*
            - If at least one nation has a CB on the owner of a flashpoint state, the tension increases by define:TENSION_FROM_CB
            per day.
            */
            if(si.get_nation_from_state_ownership().get_is_target_of_some_cb()) {
                total_increase += state.defines.tension_from_cb;
            }
            /*
            - If there is an independence movement within the nation owning the state for the independence tag, the tension will
            increase by movement-radicalism x define:TENSION_FROM_MOVEMENT x
            fraction-of-population-in-state-with-same-culture-as-independence-tag x movement-support / 4000, up to a maximum of
            define:TENSION_FROM_MOVEMENT_MAX per day.
            */
            auto mov = rebel::get_movement_by_independence(state, si.get_nation_from_state_ownership(), si.get_flashpoint_tag());
            if(mov) {
                auto radicalism = state.world.movement_get_radicalism(mov);
                auto support = state.world.movement_get_pop_support(mov);
                auto state_pop = si.get_demographics(demographics::total);
                auto pop_of_culture = si.get_demographics(demographics::to_key(state, si.get_flashpoint_tag().get_primary_culture()));
                if(state_pop > 0) {
                    total_increase += std::min(state.defines.tension_from_movement_max,
                            state.defines.tension_from_movement * radicalism * pop_of_culture * support / (state_pop * 4000.0f));
                }
            }
 
            /*
            - Any flashpoint focus increases the tension by the amount listed in it per day.
            */
            if(si.get_nation_from_flashpoint_focus()) {
                total_increase += state.national_definitions.flashpoint_amount;
            }
 
            /*
            - Tension increases by define:TENSION_DECAY per day (this is negative, so this is actually a daily decrease).
            */
            total_increase += state.defines.tension_decay;
 
            /*
            - Tension increased by define:TENSION_WHILE_CRISIS per day while a crisis is ongoing.
            */
            if(state.current_crisis != sys::crisis_type::none) {
                total_increase += state.defines.tension_while_crisis;
            }
 
            /*
            - If the state is owned by a great power, tension is increased by define:RANK_X_TENSION_DECAY per day
            */
            if(auto rank = si.get_nation_from_state_ownership().get_rank();
                    uint16_t(1) <= rank && rank <= uint16_t(int32_t(state.defines.great_nations_count))) {
                static float rank_amounts[8] = {state.defines.rank_1_tension_decay, state.defines.rank_2_tension_decay,
                        state.defines.rank_3_tension_decay, state.defines.rank_4_tension_decay, state.defines.rank_5_tension_decay,
                        state.defines.rank_6_tension_decay, state.defines.rank_7_tension_decay, state.defines.rank_8_tension_decay};
 
                total_increase += rank_amounts[rank - 1];
            }
 
            /*
            - For each great power at war or disarmed on the same continent as either the owner or the state, tension is increased
            by define:AT_WAR_TENSION_DECAY per day.
            */
            for(auto& gp : state.great_nations) {
                if(state.world.nation_get_is_at_war(gp.nation) ||
                        (state.world.nation_get_disarmed_until(gp.nation) &&
                                state.current_date <= state.world.nation_get_disarmed_until(gp.nation))) {
                    auto continent = state.world.province_get_continent(state.world.nation_get_capital(gp.nation));
                    if(si.get_capital().get_continent() == continent ||
                            si.get_nation_from_state_ownership().get_capital().get_continent() == continent) {
                        total_increase += state.defines.at_war_tension_decay;
                        break;
                    }
                }
            }
 
            /*
            - Tension ranges between 0 and 100
            */
            si.get_flashpoint_tension() = std::clamp(si.get_flashpoint_tension() + total_increase, 0.0f, 100.0f);
        } else {
            si.set_flashpoint_tension(0.0f);
        }
    }
}
 
void cleanup_crisis(sys::state& state) {
    state.last_crisis_end_date = state.current_date;
    state.current_crisis = sys::crisis_type::none;
    state.current_crisis_mode = sys::crisis_mode::inactive;
    state.crisis_last_checked_gp = 0;
 
    for(auto& par : state.crisis_participants) {
        if(par.id) {
            par.id = dcon::nation_id{};
            par.merely_interested = false;
            par.supports_attacker = false;
            par.joined_with_offer.target = dcon::nation_id{};
            par.joined_with_offer.wargoal_secondary_nation = dcon::nation_id{};
            par.joined_with_offer.wargoal_state = dcon::state_definition_id{};
            par.joined_with_offer.wargoal_tag = dcon::national_identity_id{};
            par.joined_with_offer.wargoal_type = dcon::cb_type_id{};
        } else {
            break;
        }
    }
 
    state.crisis_temperature = 0.0f;
    state.crisis_war = dcon::war_id{};
    state.primary_crisis_attacker = dcon::nation_id{};
    state.primary_crisis_defender = dcon::nation_id{};
    state.crisis_state = dcon::state_instance_id{};
    state.crisis_colony = dcon::state_definition_id{};
    state.crisis_liberation_tag = dcon::national_identity_id{};
}
 
void add_as_primary_crisis_defender(sys::state& state, dcon::nation_id n) {
    state.primary_crisis_defender = n;
 
    notification::post(state, notification::message{
        [n](sys::state& state, text::layout_base& contents) {
            text::add_line(state, contents, "msg_crisis_defender_1", text::variable_type::x, n);
 
        },
        "msg_crisis_defender_title",
        n, dcon::nation_id{}, dcon::nation_id{},
        sys::message_base_type::crisis_defender_backer
    });
}
 
void add_as_primary_crisis_attacker(sys::state& state, dcon::nation_id n) {
    state.primary_crisis_attacker = n;
 
    notification::post(state, notification::message{
        [n](sys::state& state, text::layout_base& contents) {
            text::add_line(state, contents, "msg_crisis_attacker_1", text::variable_type::x, n);
 
        },
        "msg_crisis_attacker_title",
        n, dcon::nation_id{}, dcon::nation_id{},
        sys::message_base_type::crisis_attacker_backer
    });
}
 
void ask_to_defend_in_crisis(sys::state& state, dcon::nation_id n) {
    if(state.world.nation_get_is_at_war(n)) { // ineligible
        reject_crisis_participation(state);
    } else {
        diplomatic_message::message m;
        memset(&m, 0, sizeof(diplomatic_message::message));
        m.type = diplomatic_message::type::be_crisis_primary_defender;
        m.to = n;
        if(state.crisis_state) {
            m.from = state.world.state_instance_get_nation_from_state_ownership(state.crisis_state);
        }
        diplomatic_message::post(state, m);
    }
}
 
void ask_to_attack_in_crisis(sys::state& state, dcon::nation_id n) {
    if(state.world.nation_get_is_at_war(n)) { // ineligible
        reject_crisis_participation(state);
    } else {
        diplomatic_message::message m;
        memset(&m, 0, sizeof(diplomatic_message::message));
        m.type = diplomatic_message::type::be_crisis_primary_attacker;
        m.to = n;
        if(state.crisis_liberation_tag) {
            m.from = state.world.national_identity_get_nation_from_identity_holder(state.crisis_liberation_tag);
        }
        diplomatic_message::post(state, m);
    }
}
 
void reject_crisis_participation(sys::state& state) {
    ++state.crisis_last_checked_gp;
    if(state.crisis_last_checked_gp < state.great_nations.size() &&
            (state.great_nations[state.crisis_last_checked_gp].nation == state.primary_crisis_attacker ||
                    state.great_nations[state.crisis_last_checked_gp].nation == state.primary_crisis_defender)) {
        ++state.crisis_last_checked_gp;
    }
    if(state.current_crisis_mode == sys::crisis_mode::finding_attacker) {
        if(state.crisis_last_checked_gp >= state.great_nations.size()) {
            // no attacker -- fizzle
 
            notification::post(state, notification::message{
                [](sys::state& state, text::layout_base& contents) {
                    text::add_line(state, contents, "msg_crisis_fizzle_1");
                },
                "msg_crisis_fizzle_title",
                state.local_player_nation,dcon::nation_id{}, dcon::nation_id{},
                sys::message_base_type::crisis_fizzle
            });
 
            cleanup_crisis(state);
        } else {
            ask_to_attack_in_crisis(state, state.great_nations[state.crisis_last_checked_gp].nation);
        }
    } else if(state.current_crisis_mode == sys::crisis_mode::finding_defender) {
        if(state.crisis_last_checked_gp >= state.great_nations.size()) {
            // no defender -- attacker wins
            // TODO: notify resolution
 
            notification::post(state, notification::message{
                [](sys::state& state, text::layout_base& contents) {
                    text::add_line(state, contents, "msg_crisis_fizzle_2");
                },
                "msg_crisis_fizzle_title",
                state.local_player_nation, dcon::nation_id{}, dcon::nation_id{},
                sys::message_base_type::crisis_fizzle
            });
 
            if(state.current_crisis == sys::crisis_type::liberation) {
                military::implement_war_goal(state, dcon::war_id{}, state.military_definitions.crisis_liberate,
                        state.primary_crisis_attacker, state.world.state_instance_get_nation_from_state_ownership(state.crisis_state),
                        dcon::nation_id{}, state.world.state_instance_get_definition(state.crisis_state), state.crisis_liberation_tag);
            } else { // colonial
                auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
 
                if((colonizers.end() - colonizers.begin()) >= 2) {
                    auto attacking_colonizer = (*colonizers.begin()).get_colonizer();
                    auto defending_colonizer = (*(colonizers.begin() + 1)).get_colonizer();
 
                    military::implement_war_goal(state, dcon::war_id{}, state.military_definitions.crisis_colony, attacking_colonizer,
                            defending_colonizer, dcon::nation_id{}, state.crisis_colony, dcon::national_identity_id{});
                }
            }
 
            cleanup_crisis(state);
        } else {
            ask_to_defend_in_crisis(state, state.great_nations[state.crisis_last_checked_gp].nation);
        }
    }
}
 
void cleanup_crisis_peace_offer(sys::state& state, dcon::peace_offer_id peace) {
    auto wg = state.world.peace_offer_get_peace_offer_item(peace);
    while(wg.begin() != wg.end()) {
        state.world.delete_wargoal((*wg.begin()).get_wargoal());
    }
    state.world.delete_peace_offer(peace);
}
 
void accept_crisis_peace_offer(sys::state& state, dcon::nation_id from, dcon::nation_id to, dcon::peace_offer_id peace) {
 
    military::implement_peace_offer(state, peace);
 
    cleanup_crisis_peace_offer(state, peace);
    cleanup_crisis(state);
}
 
void update_crisis(sys::state& state) {
    /*
    A crisis may not start until define:CRISIS_COOLDOWN_MONTHS months after the last crisis or crisis war has ended.
    */
 
    if(state.great_nations.size() <= 2)
        return; // not enough nations obviously
 
    // filter out invalid crises
    if(state.current_crisis == sys::crisis_type::colonial) {
        auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
        auto num_colonizers = colonizers.end() - colonizers.begin();
        if(num_colonizers < 2) {
            cleanup_crisis(state);
        }
    } else if(state.current_crisis == sys::crisis_type::liberation) {
        auto state_owner = state.world.state_instance_get_nation_from_state_ownership(state.crisis_state);
        if(state_owner == state.primary_crisis_attacker ||
                state.world.nation_get_identity_from_identity_holder(state_owner) == state.crisis_liberation_tag) {
            cleanup_crisis(state);
        }
    }
 
    if(state.current_crisis == sys::crisis_type::none && !state.crisis_war && (!state.last_crisis_end_date ||
            state.last_crisis_end_date + 31 * int32_t(state.defines.crisis_cooldown_months) < state.current_date)) {
        // try to start a crisis
        // determine type if any
 
        /*
        When a crisis becomes possible, we first check each of the three states with the highest tension > 50 where neither the
        owner of the state nor the nation associated with the flashpoint (if any) is at war. I believe the probability of a crisis
        happening in any of those states is 0.001 x define:CRISIS_BASE_CHANCE x state-tension / 100. If this turns into a crisis,
        the tension in the state is immediately zeroed.
        */
        std::vector<dcon::state_instance_id> most_likely_states;
        for(auto si : state.world.in_state_instance) {
            auto owner_war = si.get_nation_from_state_ownership().get_is_at_war();
            auto ft = si.get_flashpoint_tag();
            auto ften = si.get_flashpoint_tension();
            auto ihold_at_war = si.get_flashpoint_tag().get_nation_from_identity_holder().get_is_at_war();
 
            if(si.get_nation_from_state_ownership().get_is_at_war() == false && si.get_flashpoint_tag() &&
                    si.get_flashpoint_tension() > 50.0f &&
                    si.get_flashpoint_tag().get_nation_from_identity_holder().get_is_at_war() == false) {
                most_likely_states.push_back(si);
            }
        }
        std::sort(most_likely_states.begin(), most_likely_states.end(), [&](dcon::state_instance_id a, dcon::state_instance_id b) {
            auto tension_diff =
                    state.world.state_instance_get_flashpoint_tension(a) - state.world.state_instance_get_flashpoint_tension(b);
            if(tension_diff != 0.0f) {
                return tension_diff > 0.0f;
            } else {
                return a.index() < b.index(); // create a total order
            }
        });
        for(uint32_t i = 0; i < 3 && i < most_likely_states.size(); ++i) {
            auto chance = uint32_t(state.defines.crisis_base_chance *
                                                         state.world.state_instance_get_flashpoint_tension(most_likely_states[i])); // out of 10,000
            auto rvalue = rng::get_random(state, uint32_t(most_likely_states[i].index())) % 10000;
            if(rvalue < chance) {
                state.crisis_state = most_likely_states[i];
                state.crisis_liberation_tag = state.world.state_instance_get_flashpoint_tag(state.crisis_state);
                state.world.state_instance_set_flashpoint_tension(state.crisis_state, 0.0f);
                state.current_crisis = sys::crisis_type::liberation;
                if(auto owner = state.world.state_instance_get_nation_from_state_ownership(state.crisis_state);
                        state.world.nation_get_is_great_power(owner)) {
                    state.primary_crisis_defender = owner;
                }
 
 
                notification::post(state, notification::message{
                    [st = state.crisis_state](sys::state& state, text::layout_base& contents) {
                        text::add_line(state, contents, "msg_new_crisis_1", text::variable_type::x, st);
                    },
                    "msg_new_crisis_title",
                    state.local_player_nation, dcon::nation_id{}, dcon::nation_id{},
                    sys::message_base_type::crisis_starts
                });
 
                break;
            }
        }
        if(state.current_crisis == sys::crisis_type::none) {
            /*
            Failing that, any contested colonial region where neither colonizer is at war will become a crisis and the colonial
            "temperature" has reached 100.
            */
            // try colonial crisis
            for(auto sd : state.world.in_state_definition) {
                if(sd.get_colonization_temperature() >= 100.0f) {
                    auto colonizers = sd.get_colonization();
                    auto num_colonizers = colonizers.end() - colonizers.begin();
                    if(num_colonizers == 2) {
                        state.crisis_colony = sd;
                        sd.set_colonization_temperature(0.0f);
                        state.current_crisis = sys::crisis_type::colonial;
 
                        if((*colonizers.begin()).get_colonizer().get_is_great_power()) {
                            state.primary_crisis_attacker = (*colonizers.begin()).get_colonizer();
                        }
                        if((*(colonizers.begin() + 1)).get_colonizer().get_is_great_power()) {
                            state.primary_crisis_defender = (*(colonizers.begin() + 1)).get_colonizer();
                        }
 
                        notification::post(state, notification::message{
                            [st = state.crisis_colony](sys::state& state, text::layout_base& contents) {
                                text::add_line(state, contents, "msg_new_crisis_2", text::variable_type::x, st);
                            },
                            "msg_new_crisis_title",
                            state.local_player_nation, dcon::nation_id{}, dcon::nation_id{},
                            sys::message_base_type::crisis_starts
                        });
                        break;
                    }
                }
            }
        }
 
        if(state.current_crisis == sys::crisis_type::none) {
            state.last_crisis_end_date = state.current_date;
            return;
        }
 
        state.crisis_temperature = 0.0f;
        if(!state.primary_crisis_attacker) {
            state.current_crisis_mode = sys::crisis_mode::finding_attacker;
            state.crisis_last_checked_gp = state.great_nations[0].nation != state.primary_crisis_defender ? 0 : 1;
            ask_to_attack_in_crisis(state, state.great_nations[state.crisis_last_checked_gp].nation);
        } else if(!state.primary_crisis_defender) {
            state.current_crisis_mode = sys::crisis_mode::finding_defender;
            state.crisis_last_checked_gp = state.great_nations[0].nation != state.primary_crisis_attacker ? 0 : 1;
            ask_to_defend_in_crisis(state, state.great_nations[state.crisis_last_checked_gp].nation);
        } else {
            state.current_crisis_mode = sys::crisis_mode::finding_defender; // to trigger activation logic
        }
    } else if(state.current_crisis_mode == sys::crisis_mode::finding_attacker) {
        if(state.primary_crisis_attacker) { // found an attacker
            if(!state.primary_crisis_defender) {
                state.current_crisis_mode = sys::crisis_mode::finding_defender;
                state.crisis_last_checked_gp = state.great_nations[0].nation != state.primary_crisis_attacker ? 0 : 1;
                ask_to_defend_in_crisis(state, state.great_nations[state.crisis_last_checked_gp].nation);
            } else {    // defender is already a gp
                state.current_crisis_mode = sys::crisis_mode::finding_defender; // to trigger activation logic
                state.crisis_last_checked_gp = 0;
            }
        }
    } else if(state.current_crisis_mode == sys::crisis_mode::finding_defender) {
        if(state.primary_crisis_defender) { // found a defender
            state.current_crisis_mode = sys::crisis_mode::heating_up;
            state.crisis_last_checked_gp = 0;
 
            /*
            A GP that is not disarmed and not at war with war exhaustion less than define:CRISIS_INTEREST_WAR_EXHAUSTION_LIMIT and
            is either on the same continent as the crisis target, crisis attacker, or state (or with a few other special cases: I
            think European GPs are interested in everything, and I think north and south America are considered one continent
            here) is considered to be interested. When a GP becomes interested it gets a `on_crisis_declare_interest` event.
            */
            /*
            When a GP becomes interested it gets a `on_crisis_declare_interest` event.
            */
            state.crisis_participants[0].id = state.primary_crisis_attacker;
            state.crisis_participants[0].supports_attacker = true;
            state.crisis_participants[0].merely_interested = false;
            state.crisis_participants[1].id = state.primary_crisis_defender;
            state.crisis_participants[1].supports_attacker = false;
            state.crisis_participants[1].merely_interested = false;
 
            auto crisis_state_continent = state.crisis_state
                ? state.world.province_get_continent(state.world.state_instance_get_capital(state.crisis_state))
                : [&]() {
                    if(auto p = state.world.state_definition_get_abstract_state_membership(state.crisis_colony); p.begin() != p.end()) {
                        return (*p.begin()).get_province().get_continent().id;
                    }
                    return dcon::modifier_id{};
                }();
 
            auto crisis_defender_continent =
                    state.world.province_get_continent(state.world.nation_get_capital(state.primary_crisis_defender));
            uint32_t added_count = 2;
 
            for(auto& gp : state.great_nations) {
                if(gp.nation != state.primary_crisis_attacker && gp.nation != state.primary_crisis_defender &&
                        !state.world.nation_get_is_at_war(gp.nation) &&
                        state.world.nation_get_war_exhaustion(gp.nation) < state.defines.crisis_interest_war_exhaustion_limit) {
                    auto cap_con = state.world.province_get_continent(state.world.nation_get_capital(gp.nation));
                    if(cap_con == state.province_definitions.europe || cap_con == crisis_state_continent ||
                            cap_con == crisis_defender_continent ||
                            (cap_con == state.province_definitions.north_america &&
                                    crisis_state_continent == state.province_definitions.south_america) ||
                            (cap_con == state.province_definitions.north_america &&
                                    crisis_defender_continent == state.province_definitions.south_america) ||
                            (cap_con == state.province_definitions.south_america &&
                                    crisis_state_continent == state.province_definitions.north_america) ||
                            (cap_con == state.province_definitions.south_america &&
                                    crisis_defender_continent == state.province_definitions.north_america)) {
 
                        /*
                        // apparently the event takes care of adding people
                        state.crisis_participants[added_count].id = gp.nation;
                        state.crisis_participants[added_count].supports_attacker = false;
                        state.crisis_participants[added_count].merely_interested = true;
                        ++added_count;
                        */
 
                        event::fire_fixed_event(state, state.national_definitions.on_crisis_declare_interest, trigger::to_generic(gp.nation),
                                event::slot_type::nation, gp.nation, -1, event::slot_type::none);
                    }
                }
            }
 
            // auto join ais
            dcon::nation_id secondary_attacker;
            dcon::nation_id secondary_defender;
 
            if(state.current_crisis == sys::crisis_type::colonial) {
                auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
                secondary_defender = (*(colonizers.begin() + 1)).get_colonizer();
                secondary_attacker = (*(colonizers.begin())).get_colonizer();
            } else if(state.current_crisis == sys::crisis_type::liberation) {
                secondary_defender = state.world.state_instance_get_nation_from_state_ownership(state.crisis_state);
                secondary_attacker = state.world.national_identity_get_nation_from_identity_holder(state.crisis_liberation_tag);
            }
 
            for(auto& i : state.crisis_participants) {
                if(i.id && i.merely_interested == true && state.world.nation_get_is_player_controlled(i.id) == false) {
                    if(state.world.nation_get_ai_rival(i.id) == state.primary_crisis_attacker
                        || nations::are_allied(state, i.id, state.primary_crisis_defender)
                        || state.world.nation_get_ai_rival(i.id) == secondary_attacker
                        || nations::are_allied(state, i.id, secondary_defender)
                        || state.world.nation_get_in_sphere_of(secondary_defender) == i.id) {
 
                        i.merely_interested = false;
                        i.supports_attacker = false;
 
                        notification::post(state, notification::message{
                            [source = i.id](sys::state& state, text::layout_base& contents) {
                                text::add_line(state, contents, "msg_crisis_vol_join_2", text::variable_type::x, source);
                            },
                            "msg_crisis_vol_join_title",
                            i.id, dcon::nation_id{}, dcon::nation_id{},
                            sys::message_base_type::crisis_voluntary_join
                        });
                    } else if(state.world.nation_get_ai_rival(i.id) == state.primary_crisis_defender
                        || nations::are_allied(state, i.id, state.primary_crisis_attacker)
                        || state.world.nation_get_ai_rival(i.id) == secondary_defender
                        || nations::are_allied(state, i.id, secondary_attacker)
                        || state.world.nation_get_in_sphere_of(secondary_attacker) == i.id) {
 
                        i.merely_interested = false;
                        i.supports_attacker = true;
 
                        notification::post(state, notification::message{
                            [source = i.id](sys::state& state, text::layout_base& contents) {
                                text::add_line(state, contents, "msg_crisis_vol_join_1", text::variable_type::x, source);
                            },
                            "msg_crisis_vol_join_title",
                            i.id, dcon::nation_id{}, dcon::nation_id{},
                            sys::message_base_type::crisis_voluntary_join
                        });
                    }
                }
                if(!i.id)
                    break;;
            }
        }
    } else if(state.current_crisis_mode == sys::crisis_mode::heating_up) {
        /*
        Every day where there is at least one defending GP and one attacking GP, the crisis temperature increases by
        define:CRISIS_TEMPERATURE_INCREASE x define:CRISIS_TEMPERATURE_PARTICIPANT_FACTOR x the ratio of GPs currently involved in
        the crisis to the total number of interested GPs and participating GPs.
        */
 
        int32_t total = 0;
        int32_t participants = 0;
        for(auto& par : state.crisis_participants) {
            if(par.id) {
                ++total;
                if(!par.merely_interested)
                    ++participants;
            } else {
                break;
            }
        }
 
        assert(total != 0);
        state.crisis_temperature += state.defines.crisis_temperature_increase * state.defines.crisis_temperature_participant_factor *
                                                                float(participants) / float(total);
 
        if(state.crisis_temperature >= 100) {
            dcon::war_id war;
            if(state.current_crisis == sys::crisis_type::liberation) {
                war = military::create_war(state, state.primary_crisis_attacker,
                        state.world.state_instance_get_nation_from_state_ownership(state.crisis_state),
                        state.military_definitions.crisis_liberate, state.world.state_instance_get_definition(state.crisis_state),
                        state.crisis_liberation_tag, dcon::nation_id{});
                if(state.world.state_instance_get_nation_from_state_ownership(state.crisis_state) != state.primary_crisis_defender) {
                    military::add_to_war(state, war, state.primary_crisis_defender, false);
                    state.world.war_set_primary_defender(war, state.primary_crisis_defender);
                }
            } else { // colonial
                auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
 
                auto attacking_colonizer = (*colonizers.begin()).get_colonizer();
                auto defending_colonizer = (*(colonizers.begin() + 1)).get_colonizer();
 
                war = military::create_war(state, attacking_colonizer, defending_colonizer, state.military_definitions.crisis_colony,
                        state.crisis_colony, dcon::national_identity_id{}, dcon::nation_id{});
                military::add_wargoal(state, war, defending_colonizer, attacking_colonizer, state.military_definitions.crisis_colony,
                        state.crisis_colony, dcon::national_identity_id{}, dcon::nation_id{});
 
                if(state.primary_crisis_defender != attacking_colonizer && state.primary_crisis_defender != defending_colonizer) {
                    military::add_to_war(state, war, state.primary_crisis_defender, false);
                    state.world.war_set_primary_defender(war, state.primary_crisis_defender);
                }
                if(state.primary_crisis_attacker != attacking_colonizer && state.primary_crisis_attacker != defending_colonizer) {
                    military::add_to_war(state, war, state.primary_crisis_attacker, true);
                    state.world.war_set_primary_attacker(war, state.primary_crisis_attacker);
                }
            }
 
            for(auto& par : state.crisis_participants) {
                if(par.id) {
                    if(!par.merely_interested && par.id != state.primary_crisis_attacker && par.id != state.primary_crisis_defender) {
                        military::add_to_war(state, war, par.id, par.supports_attacker);
                    }
                } else {
                    break;
                }
            }
 
            // add wargoals
            for(auto& par : state.crisis_participants) {
                if(par.id) {
                    if(!par.merely_interested && par.id != state.primary_crisis_attacker && par.id != state.primary_crisis_defender) {
                        if(par.joined_with_offer.wargoal_type) {
                            military::add_wargoal(state, war, par.id, par.joined_with_offer.target, par.joined_with_offer.wargoal_type,
                                    par.joined_with_offer.wargoal_state, par.joined_with_offer.wargoal_tag,
                                    par.joined_with_offer.wargoal_secondary_nation);
                        }
                    }
                } else {
                    break;
                }
            }
 
            /*
            If the crisis becomes a war, any interested GP which did not take a side loses
            (years-after-start-date x define:CRISIS_DID_NOT_TAKE_SIDE_PRESTIGE_FACTOR_YEAR +
            define:CRISIS_DID_NOT_TAKE_SIDE_PRESTIGE_FACTOR_BASE) as a fraction of their prestige.
            */
 
            float p_factor = state.defines.crisis_did_not_take_side_prestige_factor_base +
                                             state.defines.crisis_did_not_take_side_prestige_factor_year * float(state.current_date.value) / float(365);
 
            for(auto& par : state.crisis_participants) {
                if(!par.id)
                    break;
 
                if(par.merely_interested) {
                    nations::adjust_prestige(state, par.id, nations::prestige_score(state, par.id) * p_factor);
                    // TODO: notify
                }
            }
 
            cleanup_crisis(state);
 
            state.world.war_set_is_crisis_war(war, true);
 
            if(state.military_definitions.great_wars_enabled) {
                int32_t gp_attackers = 0;
                int32_t gp_defenders = 0;
 
                for(auto par : state.world.war_get_war_participant(war)) {
                    if(nations::is_great_power(state, par.get_nation())) {
                        if(par.get_is_attacker())
                            ++gp_attackers;
                        else
                            ++gp_defenders;
                    }
                }
 
                if(gp_attackers >= 2 && gp_defenders >= 2) {
                    state.world.war_set_is_great(war, true);
                    state.world.war_set_name(war, state.lookup_key(std::string_view{ "great_war_name" }));
                }
            }
 
            state.crisis_war = war;
 
            notification::post(state, notification::message{
                [pa = state.world.war_get_primary_attacker(war), pd = state.world.war_get_primary_defender(war), name = state.world.war_get_name(war), tag = state.world.war_get_over_tag(war), st = state.world.war_get_over_state(war)](sys::state& state, text::layout_base& contents) {
 
                    text::substitution_map sub;
 
                    text::add_to_substitution_map(sub, text::variable_type::order, std::string_view(""));
                    text::add_to_substitution_map(sub, text::variable_type::second, text::get_adjective(state, pd));
                    text::add_to_substitution_map(sub, text::variable_type::second_country, pd);
                    text::add_to_substitution_map(sub, text::variable_type::first, text::get_adjective(state, pa));
                    text::add_to_substitution_map(sub, text::variable_type::third, tag);
                    text::add_to_substitution_map(sub, text::variable_type::state, st);
                    text::add_to_substitution_map(sub, text::variable_type::country_adj, state.world.national_identity_get_adjective(tag));
 
                    std::string resolved_war_name = text::resolve_string_substitution(state, name, sub);
                    text::add_line(state, contents, "msg_crisis_escalates_1", text::variable_type::x, std::string_view{resolved_war_name});
                },
                "msg_crisis_escalates_title",
                state.local_player_nation, dcon::nation_id{}, dcon::nation_id{},
                sys::message_base_type::crisis_becomes_war
            });
        }
    }
}
 
int32_t num_crisis_wargoals(sys::state& state) {
    int32_t total = 0;
 
    for(auto& par : state.crisis_participants) {
        if(!par.id)
            break;
        if(par.joined_with_offer.wargoal_type) {
            ++total;
        }
    }
 
    if(state.current_crisis == sys::crisis_type::liberation) {
        return total + 1;
    } else if(state.current_crisis == sys::crisis_type::colonial) {
        return total + 2;
    }
    return 0;
}
 
bool nth_crisis_war_goal_is_for_attacker(sys::state& state, int32_t index) {
    if(state.current_crisis == sys::crisis_type::liberation) {
        if(index == 0) {
            return true;
        } else {
            int32_t count = 1;
            for(auto& par : state.crisis_participants) {
                if(!par.id)
                    break;
                if(par.joined_with_offer.wargoal_type) {
                    if(count == index) {
                        return par.supports_attacker;
                    }
                    ++count;
                }
            }
        }
    } else if(state.current_crisis == sys::crisis_type::colonial) {
        if(index == 0) {
            return true;
        } else if(index == 1) {
            return false;
        } else {
            int32_t count = 2;
            for(auto& par : state.crisis_participants) {
                if(!par.id)
                    break;
                if(par.joined_with_offer.wargoal_type) {
                    if(count == index) {
                        return par.supports_attacker;
                    }
                    ++count;
                }
            }
        }
    }
    return false;
}
 
military::full_wg get_nth_crisis_war_goal(sys::state& state, int32_t index) {
    if(state.current_crisis == sys::crisis_type::liberation) {
        if(index == 0) {
            return military::full_wg{
                state.primary_crisis_attacker,
                    state.world.state_instance_get_nation_from_state_ownership(state.crisis_state),
                    dcon::nation_id{},
                    state.crisis_liberation_tag,
                    state.world.state_instance_get_definition(state.crisis_state),
                    state.military_definitions.crisis_liberate
            };
        } else {
            int32_t count = 1;
            for(auto& par : state.crisis_participants) {
                if(!par.id)
                    break;
                if(par.joined_with_offer.wargoal_type) {
                    if(count == index) {
                        return military::full_wg{
                            par.id,
                                par.joined_with_offer.target,
                                par.joined_with_offer.wargoal_secondary_nation,
                                par.joined_with_offer.wargoal_tag,
                                par.joined_with_offer.wargoal_state,
                                par.joined_with_offer.wargoal_type
                        };
                    }
                    ++count;
                }
            }
        }
    } else if(state.current_crisis == sys::crisis_type::colonial) {
        if(index == 0) {
            auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
            if(colonizers.end() - colonizers.begin() >= 2) {
                auto attacking_colonizer = (*colonizers.begin()).get_colonizer();
                auto defending_colonizer = (*(colonizers.begin() + 1)).get_colonizer();
 
                return military::full_wg{
                    attacking_colonizer,
                        defending_colonizer,
                        dcon::nation_id{},
                        dcon::national_identity_id{},
                        state.crisis_colony,
                        state.military_definitions.crisis_colony
                };
            }
        } else if(index == 1) {
            auto colonizers = state.world.state_definition_get_colonization(state.crisis_colony);
            if(colonizers.end() - colonizers.begin() >= 2) {
                auto attacking_colonizer = (*colonizers.begin()).get_colonizer();
                auto defending_colonizer = (*(colonizers.begin() + 1)).get_colonizer();
 
                return military::full_wg{
                    defending_colonizer,
                        attacking_colonizer,
                        dcon::nation_id{},
                        dcon::national_identity_id{},
                        state.crisis_colony,
                        state.military_definitions.crisis_colony
                };
            }
        } else {
            int32_t count = 2;
            for(auto& par : state.crisis_participants) {
                if(!par.id)
                    break;
                if(par.joined_with_offer.wargoal_type) {
                    if(count == index) {
                        return military::full_wg{
                            par.id,
                                par.joined_with_offer.target,
                                par.joined_with_offer.wargoal_secondary_nation,
                                par.joined_with_offer.wargoal_tag,
                                par.joined_with_offer.wargoal_state,
                                par.joined_with_offer.wargoal_type
                        };
                    }
                    ++count;
                }
            }
        }
    }
    return military::full_wg{};
}
 
void update_pop_acceptance(sys::state& state, dcon::nation_id n) {
    auto pc = state.world.nation_get_primary_culture(n);
    for(auto pr : state.world.nation_get_province_ownership(n)) {
        for(auto pop : pr.get_province().get_pop_location()) {
            [&]() {
                if(pc == pop.get_pop().get_culture()) {
                    pop.get_pop().set_is_primary_or_accepted_culture(true);
                    return;
                }
                if(state.world.nation_get_accepted_cultures(n, pop.get_pop().get_culture()) == true) {
                    pop.get_pop().set_is_primary_or_accepted_culture(true);
                    return;
                }
                pop.get_pop().set_is_primary_or_accepted_culture(false);
            }();
        }
    }
}
 
void liberate_nation_from(sys::state& state, dcon::national_identity_id liberated, dcon::nation_id from) {
    if(!liberated)
        return;
    auto holder = state.world.national_identity_get_nation_from_identity_holder(liberated);
    if(!holder) {
        holder = state.world.create_nation();
        state.world.nation_set_identity_from_identity_holder(holder, liberated);
    }
    auto lprovs = state.world.nation_get_province_ownership(holder);
    if(lprovs.begin() == lprovs.end()) {
        nations::create_nation_based_on_template(state, holder, from);
    }
    for(auto c : state.world.national_identity_get_core(liberated)) {
        if(c.get_province().get_nation_from_province_ownership() == from) {
            province::change_province_owner(state, c.get_province(), holder);
        }
    }
 
    state.world.nation_set_capital(holder, province::pick_capital(state, holder));
    if(state.world.province_get_nation_from_province_ownership(state.world.nation_get_capital(from)) != from) {
        state.world.nation_set_capital(from, province::pick_capital(state, from));
    }
}
 
void release_nation_from(sys::state& state, dcon::national_identity_id liberated, dcon::nation_id from) {
    if(!liberated)
        return;
    auto holder = state.world.national_identity_get_nation_from_identity_holder(liberated);
    auto source_tag = state.world.nation_get_identity_from_identity_holder(from);
    if(!holder) {
        holder = state.world.create_nation();
        state.world.nation_set_identity_from_identity_holder(holder, liberated);
    }
    auto lprovs = state.world.nation_get_province_ownership(holder);
    if(lprovs.begin() == lprovs.end()) {
        nations::create_nation_based_on_template(state, holder, from);
    }
    for(auto c : state.world.national_identity_get_core(liberated)) {
        if(c.get_province().get_nation_from_province_ownership() == from &&
                !(state.world.get_core_by_prov_tag_key(c.get_province(), source_tag))) {
            province::change_province_owner(state, c.get_province(), holder);
        }
    }
    if(state.world.province_get_nation_from_province_ownership(state.world.nation_get_capital(from)) != from) {
        state.world.nation_set_capital(from, province::pick_capital(state, from));
    }
}
 
void remove_cores_from_owned(sys::state& state, dcon::nation_id n, dcon::national_identity_id tag) {
    for(auto prov : state.world.nation_get_province_ownership(n)) {
        if(auto core = state.world.get_core_by_prov_tag_key(prov.get_province(), tag); core) {
            state.world.delete_core(core);
        }
    }
}
 
void perform_nationalization(sys::state& state, dcon::nation_id n) {
    for(auto rel : state.world.nation_get_unilateral_relationship_as_target(n)) {
        if(rel.get_foreign_investment() > 0.0f) {
            event::fire_fixed_event(state, state.national_definitions.on_my_factories_nationalized,
                    trigger::to_generic(rel.get_source().id), event::slot_type::nation, rel.get_source(), trigger::to_generic(n),
                    event::slot_type::nation);
            rel.set_foreign_investment(0.0f);
        }
    }
}
 
void adjust_influence(sys::state& state, dcon::nation_id great_power, dcon::nation_id target, float delta) {
    if(great_power == target)
        return;
 
    auto rel = state.world.get_gp_relationship_by_gp_influence_pair(target, great_power);
    if(!rel) {
        rel = state.world.force_create_gp_relationship(target, great_power);
    }
    auto& inf = state.world.gp_relationship_get_influence(rel);
    inf = std::clamp(inf + delta, 0.0f, state.defines.max_influence);
}
 
void adjust_influence_with_overflow(sys::state& state, dcon::nation_id great_power, dcon::nation_id target, float delta) {
    if(state.world.nation_get_owned_province_count(great_power) == 0 || state.world.nation_get_owned_province_count(target) == 0)
        return;
    if(great_power == target)
        return;
    if(state.world.nation_get_is_great_power(target) || !state.world.nation_get_is_great_power(great_power))
        return;
 
    auto rel = state.world.get_gp_relationship_by_gp_influence_pair(target, great_power);
    if(!rel) {
        rel = state.world.force_create_gp_relationship(target, great_power);
    }
    auto& inf = state.world.gp_relationship_get_influence(rel);
    inf += delta;
 
    while(inf < 0) {
        if(state.world.nation_get_in_sphere_of(target) == great_power) {
            inf += state.defines.addtosphere_influence_cost;
            state.world.nation_set_in_sphere_of(target, dcon::nation_id{});
 
            auto& l = state.world.gp_relationship_get_status(rel);
            l = nations::influence::decrease_level(l);
        } else {
            inf += state.defines.increaseopinion_influence_cost;
 
            auto& l = state.world.gp_relationship_get_status(rel);
            l = nations::influence::decrease_level(l);
        }
    }
 
    while(inf > state.defines.max_influence) {
        if(state.world.nation_get_in_sphere_of(target) != great_power) {
            inf -= state.defines.removefromsphere_influence_cost;
            auto affected_gp = state.world.nation_get_in_sphere_of(target);
            state.world.nation_set_in_sphere_of(target, dcon::nation_id{});
            {
                auto orel = state.world.get_gp_relationship_by_gp_influence_pair(target, affected_gp);
                auto& l = state.world.gp_relationship_get_status(orel);
                l = nations::influence::decrease_level(l);
            }
        } else if((state.world.gp_relationship_get_status(rel) & influence::level_mask) == influence::level_friendly) {
            state.world.nation_set_in_sphere_of(target, great_power);
            inf -= state.defines.addtosphere_influence_cost;
            auto& l = state.world.gp_relationship_get_status(rel);
            l = nations::influence::increase_level(l);
        } else {
            inf -= state.defines.increaseopinion_influence_cost;
 
            auto& l = state.world.gp_relationship_get_status(rel);
            l = nations::influence::increase_level(l);
        }
    }
}
 
void adjust_foreign_investment(sys::state& state, dcon::nation_id great_power, dcon::nation_id target, float delta) {
    auto rel = state.world.get_unilateral_relationship_by_unilateral_pair(target, great_power);
    if(!rel) {
        rel = state.world.force_create_unilateral_relationship(target, great_power);
    }
    auto& invest = state.world.unilateral_relationship_get_foreign_investment(rel);
    invest = std::max(0.0f, invest + delta);
}
 
float get_yesterday_income(sys::state& state, dcon::nation_id n) {
    /* TODO -
     * This is a temporary function (the contents of it), what it should return is yesterdays income
     * code below should be replaced with more appropriate when avaliable
     * return value is passed to text::fp_currency{}
     */
    float sum = 0;
    sum += economy::estimate_tax_income_by_strata(state, n, culture::pop_strata::poor);
    sum += economy::estimate_tax_income_by_strata(state, n, culture::pop_strata::middle);
    sum += economy::estimate_tax_income_by_strata(state, n, culture::pop_strata::rich);
    sum += economy::estimate_gold_income(state, n);
    return sum;
}
 
void make_civilized(sys::state& state, dcon::nation_id n) {
    if(state.world.nation_get_is_civilized(n))
        return;
 
    /*
    The nation gains technologies. Specifically take the fraction of military reforms (for land and naval) or econ reforms
    (otherwise) applied, clamped to the defines:UNCIV_TECH_SPREAD_MIN and defines:UNCIV_TECH_SPREAD_MAX values, and multiply how
    far the sphere leader (or first GP) is down each tech column, rounded up, to give unciv nations their techs when they
    westernize. The nation gets an `on_civilize` event. Political and social reforms: First setting in all categories?
    */
    int32_t military_reforms_active_count = 0;
    int32_t econ_reforms_active_count = 0;
    int32_t total_military_reforms_count = 0;
    int32_t total_econ_reforms_count = 0;
 
    for(auto r : state.world.in_reform) {
        auto current_option = state.world.nation_get_reforms(n, r);
        auto& opts = state.world.reform_get_options(r);
        for(uint32_t i = 0; i < opts.size(); ++i) {
            if(opts[i]) {
                if(r.get_reform_type() == uint8_t(culture::issue_type::military)) {
                    ++total_military_reforms_count;
                    if(opts[i] == current_option)
                        military_reforms_active_count += int32_t(i);
                } else if(r.get_reform_type() == uint8_t(culture::issue_type::economic)) {
                    ++total_econ_reforms_count;
                    if(opts[i] == current_option)
                        econ_reforms_active_count += int32_t(i);
                }
            }
        }
    }
 
    assert(total_military_reforms_count != 0);
    assert(total_econ_reforms_count != 0);
 
    float mil_tech_fraction = std::clamp(float(military_reforms_active_count) / float(total_military_reforms_count),
            state.defines.unciv_tech_spread_min, state.defines.unciv_tech_spread_max);
    float econ_tech_fraction = std::clamp(float(econ_reforms_active_count) / float(total_econ_reforms_count),
            state.defines.unciv_tech_spread_min, state.defines.unciv_tech_spread_max);
 
    dcon::nation_id model = state.world.nation_get_in_sphere_of(n);
    if(!model)
        model = state.nations_by_rank[0];
 
    for(uint32_t idx = 0; idx < state.world.technology_size();) {
        // start: this tech must have a new index:
        auto this_group = state.world.technology_get_folder_index(dcon::technology_id{dcon::technology_id::value_base_t(idx)});
        bool is_military = state.culture_definitions.tech_folders[this_group].category == culture::tech_category::army ||
                                             state.culture_definitions.tech_folders[this_group].category == culture::tech_category::navy;
 
        // find out how many techs of this index the model has
        int32_t model_tech_count = 0;
        for(uint32_t sidx = idx; sidx < state.world.technology_size(); ++sidx) {
            auto sid = dcon::technology_id{dcon::technology_id::value_base_t(sidx)};
            if(state.world.technology_get_folder_index(sid) != this_group)
                break;
 
            if(state.world.nation_get_active_technologies(model, sid)) {
                ++model_tech_count;
            } else {
                break;
            }
        }
 
        // try to give the nation proportionally many
        float target_amount = float(model_tech_count) * (is_military ? mil_tech_fraction : econ_tech_fraction);
        int32_t target_count = int32_t(std::ceil(target_amount));
 
        for(uint32_t sidx = idx; sidx < state.world.technology_size(); ++sidx) {
            auto sid = dcon::technology_id{dcon::technology_id::value_base_t(sidx)};
 
            if(state.world.technology_get_folder_index(sid) != this_group)
                break;
 
            if(target_amount > 0) {
                if(!state.world.nation_get_active_technologies(n, sid))
                    culture::apply_technology(state, n, sid);
                --target_amount;
            } else {
                break;
            }
        }
 
        // advance to next group or end
        for(; idx < state.world.technology_size(); ++idx) {
            if(state.world.technology_get_folder_index(dcon::technology_id{dcon::technology_id::value_base_t(idx)}) != this_group)
                break;
        }
    }
 
    state.world.nation_set_is_civilized(n, true);
    for(auto o : state.culture_definitions.political_issues) {
        state.world.nation_set_issues(n, o, state.world.issue_get_options(o)[0]);
    }
    for(auto o : state.culture_definitions.social_issues) {
        state.world.nation_set_issues(n, o, state.world.issue_get_options(o)[0]);
    }
    for(auto r : state.world.in_reform) {
        state.world.nation_set_reforms(n, r, dcon::reform_option_id{});
    }
    sys::update_single_nation_modifiers(state, n);
    culture::update_nation_issue_rules(state, n);
 
    event::fire_fixed_event(state, state.national_definitions.on_civilize, trigger::to_generic(n), event::slot_type::nation, n, -1,
            event::slot_type::none);
}
void make_uncivilized(sys::state& state, dcon::nation_id n) {
    if(!state.world.nation_get_is_civilized(n))
        return;
 
    state.world.nation_set_is_civilized(n, false);
 
    for(auto o : state.culture_definitions.military_issues) {
        state.world.nation_set_reforms(n, o, state.world.reform_get_options(o)[0]);
    }
    for(auto o : state.culture_definitions.economic_issues) {
        state.world.nation_set_reforms(n, o, state.world.reform_get_options(o)[0]);
    }
    for(auto o : state.culture_definitions.political_issues) {
        state.world.nation_set_issues(n, o, dcon::issue_option_id{});
    }
    for(auto o : state.culture_definitions.social_issues) {
        state.world.nation_set_issues(n, o, dcon::issue_option_id{});
    }
    for(auto r : state.world.in_reform) {
        state.world.nation_set_reforms(n, r, dcon::reform_option_id{});
    }
    sys::update_single_nation_modifiers(state, n);
    culture::update_nation_issue_rules(state, n);
}
 
void enact_reform(sys::state& state, dcon::nation_id source, dcon::reform_option_id r) {
    /*
    For military/economic reforms:
    - Run the `on_execute` member
    */
    auto e = state.world.reform_option_get_on_execute_effect(r);
    if(e) {
        auto t = state.world.reform_option_get_on_execute_trigger(r);
        if(!t || trigger::evaluate(state, t, trigger::to_generic(source), trigger::to_generic(source), 0))
            effect::execute(state, e, trigger::to_generic(source), trigger::to_generic(source), 0, uint32_t(state.current_date.value),
                    uint32_t(source.index()));
    }
 
    // - Subtract research points (see discussion of when the reform is possible for how many)
    bool is_military = state.world.reform_get_reform_type(state.world.reform_option_get_parent_reform(r)) ==uint8_t(culture::issue_category::military);
    if(is_military) {
        float base_cost = float(state.world.reform_option_get_technology_cost(r));
        float reform_factor = politics::get_military_reform_multiplier(state, source);
 
        state.world.nation_get_research_points(source) -= base_cost * reform_factor;
    } else {
        float base_cost = float(state.world.reform_option_get_technology_cost(r));
        float reform_factor = politics::get_economic_reform_multiplier(state, source);
 
        state.world.nation_get_research_points(source) -= base_cost * reform_factor;
    }
 
    /*
    In general:
    - Increase the share of conservatives in the upper house by defines:CONSERVATIVE_INCREASE_AFTER_REFORM (and then normalize
    again)
    */
 
    for(auto id : state.world.in_ideology) {
        if(id == state.culture_definitions.conservative) {
            state.world.nation_get_upper_house(source, id) += state.defines.conservative_increase_after_reform * 100.0f;
        }
        state.world.nation_get_upper_house(source, id) /= (1.0f + state.defines.conservative_increase_after_reform);
    }
    state.world.nation_set_reforms(source, state.world.reform_option_get_parent_reform(r), r);
 
    culture::update_nation_issue_rules(state, source);
    sys::update_single_nation_modifiers(state, source);
}
 
void enact_issue(sys::state& state, dcon::nation_id source, dcon::issue_option_id i) {
 
    auto e = state.world.issue_option_get_on_execute_effect(i);
    if(e) {
        auto t = state.world.issue_option_get_on_execute_trigger(i);
        if(!t || trigger::evaluate(state, t, trigger::to_generic(source), trigger::to_generic(source), 0))
            effect::execute(state, e, trigger::to_generic(source), trigger::to_generic(source), 0, uint32_t(state.current_date.value),
                    uint32_t(source.index()));
    }
 
    /*
    For political and social based reforms:
    - Every issue-based movement with greater popular support than the movement supporting the given issue (if there is such a
    movement; all movements if there is no such movement) has its radicalism increased by 3v(support-of-that-movement /
    support-of-movement-behind-issue (or 1 if there is no such movement) - 1.0) x defines:WRONG_REFORM_RADICAL_IMPACT.
    */
    auto winner = rebel::get_movement_by_position(state, source, i);
    float winner_support = winner ? state.world.movement_get_pop_support(winner) : 1.0f;
    for(auto m : state.world.nation_get_movement_within(source)) {
        if(m.get_movement().get_associated_issue_option() && m.get_movement().get_associated_issue_option() != i &&
                m.get_movement().get_pop_support() > winner_support) {
 
            m.get_movement().get_transient_radicalism() +=
                std::min(3.0f, m.get_movement().get_pop_support() / winner_support - 1.0f) * state.defines.wrong_reform_radical_impact;
        }
    }
    if(winner) {
        state.world.delete_movement(winner);
    }
 
    /*
    - For every ideology, the pop gains defines:MIL_REFORM_IMPACT x pop-support-for-that-ideology x ideology's support for doing
    the opposite of the reform (calculated in the same way as determining when the upper house will support the reform or repeal)
    militancy
    */
    auto issue = state.world.issue_option_get_parent_issue(i);
    auto current = state.world.nation_get_issues(source, issue.id).id;
    bool is_social = state.world.issue_get_issue_type(issue) == uint8_t(culture::issue_category::social);
 
    if(state.world.issue_get_is_next_step_only(issue)) {
        for(auto id : state.world.in_ideology) {
            auto condition = is_social
                ? (i.index() > current.index() ? state.world.ideology_get_remove_social_reform(id) : state.world.ideology_get_add_social_reform(id))
                : (i.index() > current.index() ? state.world.ideology_get_remove_political_reform(id) : state.world.ideology_get_add_political_reform(id));
            if(condition) {
                auto factor =
                    trigger::evaluate_additive_modifier(state, condition, trigger::to_generic(source), trigger::to_generic(source), 0);
                auto const idsupport_key = pop_demographics::to_key(state, id);
                if(factor > 0) {
                    for(auto pr : state.world.nation_get_province_ownership(source)) {
                        for(auto pop : pr.get_province().get_pop_location()) {
                            auto base_mil = pop_demographics::get_militancy(state, pop.get_pop());
                            pop_demographics::set_militancy(state, pop.get_pop(), std::clamp(base_mil + pop_demographics::get_demo(state, pop.get_pop(), idsupport_key) * factor * state.defines.mil_reform_impact, 0.0f, 10.0f));
                        }
                    }
                }
            }
        }
    }
 
    /*
    - Each pop in the nation gains defines:CON_REFORM_IMPACT x pop support of the issue consciousness
 
    - If the pop is part of a movement for some other issue (or for independence), it gains defines:WRONG_REFORM_MILITANCY_IMPACT
    militancy. All other pops lose defines:WRONG_REFORM_MILITANCY_IMPACT militancy.
    */
 
    auto const isupport_key = pop_demographics::to_key(state, i);
    for(auto pr : state.world.nation_get_province_ownership(source)) {
        for(auto pop : pr.get_province().get_pop_location()) {
            auto base_con = pop_demographics::get_consciousness(state, pop.get_pop());
            auto adj_con = base_con + pop_demographics::get_demo(state, pop.get_pop(), isupport_key) * state.defines.con_reform_impact;
            pop_demographics::set_consciousness(state, pop.get_pop(), std::clamp(adj_con, 0.0f, 10.0f));
 
            if(auto m = pop.get_pop().get_movement_from_pop_movement_membership(); m && m.get_pop_support() > winner_support) {
                auto base_mil = pop_demographics::get_militancy(state, pop.get_pop());
                pop_demographics::set_militancy(state, pop.get_pop(), std::clamp(base_mil + state.defines.wrong_reform_militancy_impact, 0.0f, 10.0f));
            } else {
                auto base_mil = pop_demographics::get_militancy(state, pop.get_pop());
                pop_demographics::set_militancy(state, pop.get_pop(), std::clamp(base_mil - state.defines.wrong_reform_militancy_impact, 0.0f, 10.0f));
            }
        }
    }
 
    /*
    In general:
    - Increase the share of conservatives in the upper house by defines:CONSERVATIVE_INCREASE_AFTER_REFORM (and then normalize
    again)
    - If slavery is forbidden (rule slavery_allowed is false), remove all slave states and free all slaves.
    */
    for(auto id : state.world.in_ideology) {
        if(id == state.culture_definitions.conservative) {
            state.world.nation_get_upper_house(source, id) += state.defines.conservative_increase_after_reform * 100.0f;
        }
        state.world.nation_get_upper_house(source, id) /= (1.0f + state.defines.conservative_increase_after_reform);
    }
 
    state.world.nation_set_issues(source, issue, i);
 
    culture::update_nation_issue_rules(state, source);
    sys::update_single_nation_modifiers(state, source);
 
    state.world.nation_set_last_issue_or_reform_change(source, state.current_date);
}
 
} // namespace nations