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#pragma once

#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& type;
      Culture const& culture;
      Religion const& religion;
      pop_size_t size, num_promoted, num_demoted, 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;

      PopType const& get_type() const;
      Culture const& get_culture() const;
      Religion const& get_religion() const;
      pop_size_t get_size() const;
      pop_size_t get_num_promoted() const;
      pop_size_t get_num_demoted() const;
      pop_size_t get_num_migrated() const;
      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;

   private:
      const enum class strata_t {
         POOR,
         MIDDLE,
         RICH
      } strata;
      const sprite_t sprite;
      const Pop::pop_size_t max_size, merge_max_size;
      const bool state_capital_only, demote_migrant, is_artisan, is_slave;

      // TODO - rebel composition, life/everyday/luxury needs, country and province migration targets, promote_to targets, ideologies and issues

      PopType(const std::string_view new_identifier, colour_t new_colour, strata_t new_strata, sprite_t new_sprite, 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;

      strata_t get_strata() const;
      sprite_t get_sprite() const;
      Pop::pop_size_t get_max_size() const;
      Pop::pop_size_t get_merge_max_size() const;
      bool get_state_capital_only() const;
      bool get_demote_migrant() const;
      bool get_is_artisan() const;
      bool get_is_slave() const;
   };

   struct Province;

   struct PopManager {
   private:
      IdentifierRegistry<PopType> pop_types;

   public:
      CultureManager culture_manager;
      ReligionManager religion_manager;

      PopManager();

      bool add_pop_type(const std::string_view identifier, colour_t new_colour, PopType::strata_t strata, PopType::sprite_t sprite,
         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(PopType, pop_type)

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