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path: root/src/openvic-simulation/military/UnitType.hpp
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#pragma once

#include <cstdint>
#include <string_view>

#include "openvic-simulation/misc/Modifier.hpp"
#include "openvic-simulation/dataloader/NodeTools.hpp"
#include "openvic-simulation/economy/Good.hpp"
#include "openvic-simulation/types/Date.hpp"
#include "openvic-simulation/types/IdentifierRegistry.hpp"
#include "openvic-simulation/types/fixed_point/FixedPoint.hpp"

namespace OpenVic {
   struct TerrainType;
   struct TerrainTypeManager;

   struct UnitType : HasIdentifier {
      using icon_t = uint32_t;
      using terrain_modifiers_t = ordered_map<TerrainType const*, ModifierValue>;

      enum struct branch_t : uint8_t { INVALID_BRANCH, LAND, NAVAL };
      enum struct unit_category_t : uint8_t {
         INVALID_UNIT_CATEGORY, INFANTRY, CAVALRY, SUPPORT, SPECIAL, BIG_SHIP, LIGHT_SHIP, TRANSPORT
      };

      struct unit_type_args_t {
         icon_t icon = 0;
         unit_category_t unit_category = unit_category_t::INVALID_UNIT_CATEGORY;
         // TODO defaults for move_sound and select_sound
         std::string_view sprite, move_sound, select_sound;
         bool active = true, floating_flag = false;
         uint32_t priority = 0;
         fixed_point_t max_strength = 0, default_organisation = 0, maximum_speed = 0, weighted_value = 0,
            supply_consumption = 0;
         Timespan build_time;
         Good::good_map_t build_cost, supply_cost;
         terrain_modifiers_t terrain_modifiers;

         unit_type_args_t() = default;
         unit_type_args_t(unit_type_args_t&&) = default;
      };

   private:
      const branch_t PROPERTY(branch); /* type in defines */
      const icon_t PROPERTY(icon);
      std::string PROPERTY(sprite);
      const bool PROPERTY_CUSTOM_PREFIX(active, is);
      unit_category_t PROPERTY(unit_category);
      const bool PROPERTY_CUSTOM_PREFIX(floating_flag, has);

      const uint32_t PROPERTY(priority);
      const fixed_point_t PROPERTY(max_strength);
      const fixed_point_t PROPERTY(default_organisation);
      const fixed_point_t PROPERTY(maximum_speed);
      const fixed_point_t PROPERTY(weighted_value);

      std::string PROPERTY(move_sound);
      std::string PROPERTY(select_sound);

      const Timespan PROPERTY(build_time);
      Good::good_map_t PROPERTY(build_cost);
      const fixed_point_t PROPERTY(supply_consumption);
      Good::good_map_t PROPERTY(supply_cost);

      terrain_modifiers_t PROPERTY(terrain_modifiers);

   protected:
      /* Non-const reference unit_args so variables can be moved from it. */
      UnitType(std::string_view new_identifier, branch_t new_branch, unit_type_args_t& unit_args);

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

   struct RegimentType : UnitType {
      friend struct UnitTypeManager;

      enum struct allowed_cultures_t { ALL_CULTURES, ACCEPTED_CULTURES, PRIMARY_CULTURE };

      struct regiment_type_args_t {
         allowed_cultures_t allowed_cultures = allowed_cultures_t::ALL_CULTURES;
         std::string_view sprite_override, sprite_mount, sprite_mount_attach_node;
         // TODO - represent these as modifier effects, so that they can be combined with tech, inventions,
         // leader bonuses, etc. and applied to unit instances all in one go (same for ShipTypes below)
         fixed_point_t reconnaissance = 0, attack = 0, defence = 0, discipline = 0, support = 0, maneuver = 0,
            siege = 0;

         regiment_type_args_t() = default;
         regiment_type_args_t(regiment_type_args_t&&) = default;
      };

   private:
      const allowed_cultures_t PROPERTY(allowed_cultures);
      std::string PROPERTY(sprite_override);
      std::string PROPERTY(sprite_mount);
      std::string PROPERTY(sprite_mount_attach_node);
      const fixed_point_t PROPERTY(reconnaissance);
      const fixed_point_t PROPERTY(attack);
      const fixed_point_t PROPERTY(defence);
      const fixed_point_t PROPERTY(discipline);
      const fixed_point_t PROPERTY(support);
      const fixed_point_t PROPERTY(maneuver);
      const fixed_point_t PROPERTY(siege);

      RegimentType(std::string_view new_identifier, unit_type_args_t& unit_args, regiment_type_args_t const& regiment_type_args);

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

   struct ShipType : UnitType {
      friend struct UnitTypeManager;

      struct ship_type_args_t {
         UnitType::icon_t naval_icon = 0;
         bool sail = false, transport = false, capital = false, build_overseas = false;
         uint32_t min_port_level = 0;
         int32_t limit_per_port = 0;
         fixed_point_t colonial_points = 0, supply_consumption_score = 0, hull = 0, gun_power = 0, fire_range = 0,
            evasion = 0, torpedo_attack = 0;

         ship_type_args_t() = default;
         ship_type_args_t(ship_type_args_t&&) = default;
      };

   private:
      const icon_t PROPERTY(naval_icon);
      const bool PROPERTY_CUSTOM_PREFIX(sail, can);
      const bool PROPERTY_CUSTOM_PREFIX(transport, is);
      const bool PROPERTY_CUSTOM_PREFIX(capital, is);
      const fixed_point_t PROPERTY(colonial_points);
      const bool PROPERTY_CUSTOM_PREFIX(build_overseas, can);
      const uint32_t PROPERTY(min_port_level);
      const int32_t PROPERTY(limit_per_port);
      const fixed_point_t PROPERTY(supply_consumption_score);

      const fixed_point_t PROPERTY(hull);
      const fixed_point_t PROPERTY(gun_power);
      const fixed_point_t PROPERTY(fire_range);
      const fixed_point_t PROPERTY(evasion);
      const fixed_point_t PROPERTY(torpedo_attack);

      ShipType(std::string_view new_identifier, unit_type_args_t& unit_args, ship_type_args_t const& ship_type_args);

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

   struct UnitTypeManager {
   private:
      IdentifierPointerRegistry<UnitType> IDENTIFIER_REGISTRY(unit_type);
      IdentifierRegistry<RegimentType> IDENTIFIER_REGISTRY(regiment_type);
      IdentifierRegistry<ShipType> IDENTIFIER_REGISTRY(ship_type);

   public:
      void reserve_all_unit_types(size_t size);
      void lock_all_unit_types();

      bool add_regiment_type(
         std::string_view identifier, UnitType::unit_type_args_t& unit_args, RegimentType::regiment_type_args_t const& regiment_type_args
      );
      bool add_ship_type(
         std::string_view identifier, UnitType::unit_type_args_t& unit_args, ShipType::ship_type_args_t const& ship_type_args
      );

      static NodeTools::Callback<std::string_view> auto expect_branch_str(NodeTools::Callback<UnitType::branch_t> auto callback) {
         using enum UnitType::branch_t;
         static const string_map_t<UnitType::branch_t> branch_map { { "land", LAND }, { "naval", NAVAL }, { "sea", NAVAL } };
         return NodeTools::expect_mapped_string(branch_map, callback);
      }
      static NodeTools::NodeCallback auto expect_branch_identifier(NodeTools::Callback<UnitType::branch_t> auto callback) {
         return NodeTools::expect_identifier(expect_branch_str(callback));
      }

      bool load_unit_type_file(
         GoodManager const& good_manager, TerrainTypeManager const& terrain_type_manager,
         ModifierManager const& modifier_manager, ast::NodeCPtr root
      );
      bool generate_modifiers(ModifierManager& modifier_manager) const;
   };
}