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#pragma once

#include "openvic-simulation/economy/Good.hpp"
#include "openvic-simulation/military/Unit.hpp"
#include "openvic-simulation/pop/Culture.hpp"
#include "openvic-simulation/pop/Religion.hpp"

namespace OpenVic {

   struct PopManager;
   struct PopType;

   /* REQUIREMENTS:
    * POP-18, POP-19, POP-20, POP-21, POP-34, POP-35, POP-36, POP-37
    */
   struct Pop {
      friend struct PopManager;

      using pop_size_t = int64_t;

   private:
      PopType const& PROPERTY(type);
      Culture const& PROPERTY(culture);
      Religion const& PROPERTY(religion);
      pop_size_t PROPERTY(size);
      pop_size_t PROPERTY(num_promoted);
      pop_size_t PROPERTY(num_demoted);
      pop_size_t PROPERTY(num_migrated);

      Pop(PopType const& new_type, Culture const& new_culture, Religion const& new_religion, pop_size_t new_size);

   public:
      Pop(Pop const&) = delete;
      Pop(Pop&&) = default;
      Pop& operator=(Pop const&) = delete;
      Pop& operator=(Pop&&) = delete;

      pop_size_t get_pop_daily_change() const;
   };

   /* REQUIREMENTS:
    * POP-15, POP-16, POP-17, POP-26
    */
   struct PopType : HasIdentifierAndColour {
      friend struct PopManager;

      using sprite_t = uint8_t;
      using rebel_units_t = fixed_point_map_t<Unit const*>;

   private:
      const enum class strata_t { POOR, MIDDLE, RICH } PROPERTY(strata);
      const sprite_t PROPERTY(sprite);
      const Good::good_map_t PROPERTY(life_needs);
      const Good::good_map_t PROPERTY(everyday_needs);
      const Good::good_map_t PROPERTY(luxury_needs);
      const rebel_units_t PROPERTY(rebel_units);
      const Pop::pop_size_t PROPERTY(max_size);
      const Pop::pop_size_t PROPERTY(merge_max_size);
      const bool PROPERTY(state_capital_only);
      const bool PROPERTY(demote_migrant);
      const bool PROPERTY(is_artisan);
      const bool PROPERTY(is_slave);

      // TODO - country and province migration targets, promote_to targets, ideologies and issues

      PopType(
         std::string_view new_identifier, colour_t new_colour, strata_t new_strata, sprite_t new_sprite,
         Good::good_map_t&& new_life_needs, Good::good_map_t&& new_everyday_needs, Good::good_map_t&& new_luxury_needs,
         rebel_units_t&& new_rebel_units, Pop::pop_size_t new_max_size, Pop::pop_size_t new_merge_max_size,
         bool new_state_capital_only, bool new_demote_migrant, bool new_is_artisan, bool new_is_slave
      );

   public:
      PopType(PopType&&) = default;
   };

   struct Province;

   struct PopManager {
   private:
      IdentifierRegistry<PopType> pop_types;

      CultureManager PROPERTY_REF(culture_manager);
      ReligionManager PROPERTY_REF(religion_manager);

   public:
      PopManager();

      bool add_pop_type(
         std::string_view identifier, colour_t new_colour, PopType::strata_t strata, PopType::sprite_t sprite,
         Good::good_map_t&& life_needs, Good::good_map_t&& everyday_needs, Good::good_map_t&& luxury_needs,
         PopType::rebel_units_t&& rebel_units, Pop::pop_size_t max_size, Pop::pop_size_t merge_max_size,
         bool state_capital_only, bool demote_migrant, bool is_artisan, bool is_slave
      );
      IDENTIFIER_REGISTRY_ACCESSORS(pop_type)

      bool load_pop_type_file(
         std::string_view filestem, UnitManager const& unit_manager, GoodManager const& good_manager, ast::NodeCPtr root
      );
      bool load_pop_into_province(Province& province, std::string_view pop_type_identifier, ast::NodeCPtr pop_node) const;
   };
}