#pragma once

#include "dCommonVars.h"
#include <unordered_map>
#include "Singleton.h"
#include <vector>

class Entity;

struct RarityTableEntry {
    uint32_t rarity;
    float randMax;
};

typedef std::vector<RarityTableEntry> RarityTable;

struct LootMatrixEntry {
    uint32_t lootTableIndex;
    uint32_t rarityTableIndex;
    float percent;
    uint32_t minDrop;
    uint32_t maxDrop;
};

typedef std::vector<LootMatrixEntry> LootMatrix;

struct LootTableEntry {
    LOT itemID;
    bool isMissionDrop;
};

typedef std::vector<LootTableEntry> LootTable;

// used for glue code with Entity and Player classes
namespace Loot {
    struct Info {
        LWOOBJID id;
        LOT lot;
        uint32_t count;
    };
}


class LootGenerator : public Singleton<LootGenerator> {
  public:
    LootGenerator();

    std::unordered_map<LOT, int32_t> RollLootMatrix(Entity* player, uint32_t matrixIndex);
    std::unordered_map<LOT, int32_t> RollLootMatrix(uint32_t matrixIndex);
    void GiveLoot(Entity* player, uint32_t matrixIndex, eLootSourceType lootSourceType = eLootSourceType::LOOT_SOURCE_NONE);
    void GiveLoot(Entity* player, std::unordered_map<LOT, int32_t>& result, eLootSourceType lootSourceType = eLootSourceType::LOOT_SOURCE_NONE);
    void GiveActivityLoot(Entity* player, Entity* source, uint32_t activityID, int32_t rating = 0);
    void DropLoot(Entity* player, Entity* killedObject, uint32_t matrixIndex, uint32_t minCoins, uint32_t maxCoins);
    void DropLoot(Entity* player, Entity* killedObject, std::unordered_map<LOT, int32_t>& result, uint32_t minCoins, uint32_t maxCoins);
    void DropActivityLoot(Entity* player, Entity* source, uint32_t activityID, int32_t rating = 0);

  private:
    std::unordered_map<uint32_t, uint8_t> m_ItemRarities;
    std::unordered_map<uint32_t, RarityTable> m_RarityTables;
    std::unordered_map<uint32_t, LootMatrix> m_LootMatrices;
    std::unordered_map<uint32_t, LootTable> m_LootTables;
};