using System;
using System.Collections.Generic;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace BaseGames.Core.Save
{
    // ─── 顶层 ─────────────────────────────────────────────────────────────────
    [Serializable]
    public class SaveData
    {
        [JsonExtensionData]
        public Dictionary<string, JToken> ExtensionData = new();

        public SaveMeta             Meta          = new();
        public PlayerSaveData       Player        = new();
        public EquipmentSaveData    Equipment     = new();
        public WorldSaveData        World         = new();
        public MapSaveData          Map           = new();
        public QuestSaveData        Quests        = new();
        public AchievementSaveData  Achievements  = new();
        public ToolsSaveData        Tools         = new();
        public ChallengeRoomsSaveData ChallengeRooms = new();
        public EventChainsSaveData  EventChains   = new();
        public ShopsSaveData        Shops         = new();
        public StatsSaveData        Stats         = new();
        public NGPlusSaveData       NGPlus        = null; // null = 非 NG+ 模式
        public TutorialSaveData     Tutorial      = new();
        public SettingsSaveData     Settings      = new();
        public Dictionary<string, JObject> DLC    = new();
    }

    // ─── Meta ─────────────────────────────────────────────────────────────────
    [Serializable]
    public class SaveMeta
    {
        public string Version      = "2.1";
        public int    SlotIndex;
        public string LastSaved;        // ISO 8601
        public float  Playtime;
        public string SavePointId;
        public int    NGPlusCount;
        public int    SaveCount;
        public string Checksum;         // HMAC-SHA256
        /// <summary>此存档是否以钢铁之魂（一命）模式开始；加载后 DifficultyManager 会锁定到 SteelSoul。</summary>
        public bool   IsSteelSoul;
    }

    // ─── Player ───────────────────────────────────────────────────────────────
    [Serializable]
    public class PlayerSaveData
    {
        public float  PosX, PosY;
        public string Scene;
        public int    CurrentHP, MaxHP;
        public int    CurrentGeo, LifetimeGeo;

        // 能力解锁位掩码（AbilityType [Flags] uint bitmask）
        public uint AbilityFlags = 0;

        public string       ActiveFormId;
        public List<string> UnlockedFormIds = new();

        public DeathShadeSaveData DeathShade;

        // 护盾：-1 = 满护盾（默认），>= 0 = 当前耐久值
        public int  ShieldHP       = -1;
        public bool ShieldIsBroken = false;
    }

    [Serializable]
    public class DeathShadeSaveData
    {
        public float  PosX, PosY;
        public string SceneId;
        public int    GeoAmount;
    }

    // ─── Equipment ────────────────────────────────────────────────────────────
    [Serializable]
    public class EquipmentSaveData
    {
        public List<string> EquippedCharmIds  = new();
        public int          NotchesUsed;
        public int          MaxNotches;
        public List<string> OwnedCharmIds     = new();
        public List<string> UpgradedCharmIds  = new();
    }

    // ─── World ────────────────────────────────────────────────────────────────
    [Serializable]
    public class WorldSaveData
    {
        public List<string>              VisitedScenes         = new();
        public List<string>              ActivatedSavePoints   = new();
        public List<string>              OpenedDoors           = new();
        public List<string>              DefeatedBossIds       = new();
        public List<string>              CollectedIds          = new();
        public List<string>              DestroyedObjectIds    = new();
        public Dictionary<string, bool>  Switches              = new();
        public Dictionary<string, int>   NpcRelations          = new();
        public HashSet<string>           ChallengeFirstClears  = new();
    }

    // ─── Map ──────────────────────────────────────────────────────────────────
    [Serializable]
    public class MapSaveData
    {
        public List<string>  ExploredRooms = new();   // 踏入过的房间 ID
        public List<string>  MappedRooms   = new();   // 完整地图信息（购买/存档点揭示）
        public List<MapPin>  Pins          = new();   // 玩家自定义地图标记
    }

    /// <summary>玩家在地图上放置的自定义标记（架构 15_MapShopModule §1.5）。</summary>
    [Serializable]
    public class MapPin
    {
        public string RoomId;
        public float  NormalizedPosX;
        public float  NormalizedPosY;
        public int    PinTypeInt;    // PinType 枚举整数值，避免 SaveData 依赖 Map 程序集
        public string Note;          // 玩家备注（最多 64 字符）
    }

    public enum PinType
    {
        Marker  = 0,
        Chest   = 1,
        Enemy   = 2,
        Path    = 3,
        Note    = 4,
    }

    // ─── Quests ───────────────────────────────────────────────────────────────
    [Serializable]
    public class QuestSaveData
    {
        public Dictionary<string, QuestState> QuestStates    = new();
        public List<string>                   AvailableQuestIds = new();
    }

    [Serializable]
    public class QuestState
    {
        public string      Status;         // "NotStarted"|"Active"|"Completed"|"Failed"
        public int         ObjectiveIndex;
        public List<int>   ProgressCounts = new();
        public string      GiverNpcId;
    }

    // ─── Achievements ─────────────────────────────────────────────────────────
    [Serializable]
    public class AchievementSaveData
    {
        public List<string>                          Unlocked = new();
        public Dictionary<string, AchievementProgress> Progress = new();
    }

    [Serializable]
    public class AchievementProgress
    {
        public int   Count;
        public float Percent;
    }

    // ─── Stats ────────────────────────────────────────────────────────────────
    [Serializable]
    public class StatsSaveData
    {
        public int   EnemyKills, Deaths, ParrySuccess, ParryFail;
        public int   GeoEarned, GeoLost;
        public float DistanceTraveled;
        public float SpeedrunTime;
        public int   SaveCount;
        public Dictionary<string, int> SkillUseCounts = new();
        public Dictionary<string, int> DeathsByBoss   = new();
    }

    // ─── Tools ────────────────────────────────────────────────────────────────
    [Serializable]
    public class ToolsSaveData
    {
        public string       ToolSlot0;
        public string       ToolSlot1;
        public List<string> OwnedToolIds = new();
        public Dictionary<string, JObject> ToolStates = new();
    }

    // ─── ChallengeRooms ───────────────────────────────────────────────────────
    [Serializable]
    public class ChallengeRoomsSaveData
    {
        public Dictionary<string, ChallengeRoomRecord> Records = new();
    }

    [Serializable]
    public class ChallengeRoomRecord
    {
        public int    BestScore;
        public float  BestTime;
        public string BestRank;          // "S"/"A"/"B"/"C"
        public int    CompletionCount;
    }

    // ─── EventChains ──────────────────────────────────────────────────────────
    [Serializable]
    public class EventChainsSaveData
    {
        public Dictionary<string, string> ChainStates = new();
        public Dictionary<string, bool>   WorldFlags  = new();
    }

    // ─── Shops ────────────────────────────────────────────────────────────────
    [Serializable]
    public class ShopsSaveData
    {
        public Dictionary<string, ShopRecord> ShopRecords = new();
    }

    [Serializable]
    public class ShopRecord
    {
        public List<string>          SoldUniqueItems  = new();
        public Dictionary<string, int> PurchaseCounts = new();
    }

    // ─── NGPlus ───────────────────────────────────────────────────────────────
    [Serializable]
    public class NGPlusSaveData
    {
        public int    NGPlusCount;
        public bool   SteelSoulMode;
        public Dictionary<string, bool> NGPlusFlags = new();
    }

    // ─── SlotSummary（主菜单 UI 用）────────────────────────────────────────────
    public class SlotSummary
    {
        public int    SlotIndex;
        public float  Playtime;
        public string LastSaved;
        public string SceneName;
        public string ActiveFormId;
    }

    // ─── Tutorial ─────────────────────────────────────────────────────────────
    [Serializable]
    public class TutorialSaveData
    {
        /// <summary>已完成（不再弹出）的提示 ID 列表。</summary>
        public List<string> CompletedHintIds = new();
    }

    // ─── Settings ─────────────────────────────────────────────────────────────
    [Serializable]
    public class SettingsSaveData
    {
        /// <summary>玩家选择的语言。空字符串 = 使用系统默认。</summary>
        public string Language = string.Empty;
    }
}