import { Socket } from "socket.io";
import { Player } from "./Player";
import { Json } from "sequelize/types/utils";
import { Matchmaker, createMatchmaker, PairingResult } from "./MatchMaker";
import { ALL_PLAYER_NUM } from "./GameDefine";
import { GameManager } from "./GameManager";
import { getLocalTime } from "./GetLocalTime";


type RoomPlayerInfo = {
    playerName: string;
    playerPrepared: boolean;
  };

  interface GameInfo {
    playerId: string;
    opponentId: string;
    socketID: string;
    rank: number;
    character: string;
    hp: number;
  };

class Room
{
    mPlayers:Map<string, Player> = new Map<string, Player>
    mStatus:number = 0;//0：房间开启；1：所有人准备，进入fight；2：fight结束
    mMatchMaker:Matchmaker = createMatchmaker(this.mPlayers);
    mGameManager:GameManager = new GameManager();
    mCreatedTime:Date = getLocalTime();

    isRoomPrepared():boolean
    {
        if(this.mPlayers.size != ALL_PLAYER_NUM)
        {
            return false;
        }

        for(const value of this.mPlayers.values())
        {
            if(value.mPrepared == false)
            {
                return false;
            }
        }
        return true;
    }

    setRoomPrepared()
    {
        this.generatePairings();
        this.mStatus = 1;
    }

    generatePairings():PairingResult[]
    {
        let tempPlayers:Map<string, Player> = new Map<string, Player>;
        for(const key of this.mPlayers.keys())
        {
            if(this.mPlayers.get(key)!.mHp > 0)
            {
                tempPlayers.set(key, this.mPlayers.get(key)!);
            }  
        }
        this.mMatchMaker.updatePlayers(tempPlayers);
        let result = this.mMatchMaker.generatePairings();
        for(let i=0; i<result.length; ++i)
        {
            let player = this.mPlayers.get(result[i].playerId);
            if(player)
            {
                player.mCurrentEnemy = result[i].opponentId;
                player.mIsResting = result[i].isResting;
            }
        }
        return result;
    }

    getGameInfos():GameInfo[]
    {
        let gameInfo: GameInfo[] = [];
        for(const player of this.mPlayers.values())
        {
            gameInfo.push({playerId:player.mPlayerName, 
                          opponentId:player.mCurrentEnemy, 
                          socketID: player.mSocketId,
                          rank: player.mRank,
                          character: player.mCharacterName,
                          hp: player.mHp});
        }
        return gameInfo;
    }

    getGameRoundInfos():GameInfo[]
    {
        let gameInfo: GameInfo[] = [];
        for(const player of this.mGameManager.mGameFightPlayer.values())
        {
            gameInfo.push({playerId:player.mPlayerName, 
                          opponentId:player.mCurrentEnemy, 
                          socketID: player.mSocketId,
                          rank: player.mRank,
                          character: player.mCharacterName,
                          hp: player.mHp});
        }
        return gameInfo;
    }

    getGameInfo(aPlayerID:string):GameInfo|null
    {
        let player = this.mPlayers.get(aPlayerID);
        if(player)
        {
            return {playerId:player.mPlayerName,opponentId:player.mCurrentEnemy,socketID:player.mSocketId,rank:player.mRank,character: player.mCharacterName, hp:player.mHp}
        }
        return null;
    }

    setGameFight(aPlayerID:string, aAttack:number, aDefender:number):boolean
    {
        let player = this.mPlayers.get(aPlayerID);
        if(!player)
        {
            return false;
        }
        player.mAttack = aAttack;
        player.mDefener = aDefender;
        return this.mGameManager.setGameRoundInfo(aPlayerID, player);
    }
}

export class RoomManager
{
    static mInstance : RoomManager;
    static getInstance(): RoomManager
    {
        if(this.mInstance == null)
        {
            this.mInstance = new RoomManager();
        }
        return this.mInstance;
    }

    mRooms = new Map<string, Room>;

    join(aRoomID:string, aName:string, aSocket:Socket):[boolean, string, number | null, Player | null]
    {
        if(!this.mRooms.has(aRoomID))
        {
            return [false, "No room Id", null, null];
        }

        let room = this.mRooms.get(aRoomID)!;
        if(room.mPlayers.has(aName))
        {
            let player = room.mPlayers.get(aName);
            player!.setPlayerSocketId(aSocket.id);
            aSocket.join(aRoomID);
            return [true, "", room.mStatus, player!];
        }

        if(room.mPlayers.size < ALL_PLAYER_NUM)
        {
            let player = new Player(aName, aSocket.id);
            aSocket.join(aRoomID);
            room.mPlayers.set(aName, player);
            return [true,"", 0, null];
        }

        return [false, "room full", null, null];
    }

    setPlayerInfo(roomId:string, playerId:string, strength:number, stamina:number, agile:number, cards:number[])
    : boolean //返回值是是否所有玩家都准备完毕
    {
        let room = this.mRooms.get(roomId);
        if(!room)
        {
            return false;
        }
        let player = room.mPlayers.get(playerId);
        if(!player)
        {
            return false;
        }
        player.setPlayerInfo(strength, stamina, agile, cards);
        if(room.isRoomPrepared() == true )
        {
            room.setRoomPrepared();
            return true;
        }
        return false;
    }

    createRoom(aRoomID:string)
    {
        this.mRooms.set(aRoomID, new Room());
    }

    getPlayersByRoomID(aRoomID:string):RoomPlayerInfo[]
    {
        let room = this.mRooms.get(aRoomID);
        let result:RoomPlayerInfo[] = [];
        if(room?.mPlayers)
        {
            for(const value of room.mPlayers.values())
            {
                result.push({playerName:value.mPlayerName,playerPrepared:value.mPrepared});
            }
        }
        return result;
    }

    getGameInfos(aRoomID:string):GameInfo[]
    {
        let room = this.mRooms.get(aRoomID);
        if(room)
        {
            return room.getGameInfos();
        }
        return [];
    }

    getGameInfo(aRoomID:string, aPlayerID:string):GameInfo|null
    {
        let room = this.mRooms.get(aRoomID);
        if(room)
        {
            return room.getGameInfo(aPlayerID);
        }
        return null;
    }

    getGameRoundInfos(aRoomID:string, aPlayerID:string):GameInfo[]
    {
        let room = this.mRooms.get(aRoomID);
        if(room)
        {
            return room.getGameRoundInfos();
        }
        return [];
    }

    //返回值是否所有人都准备完毕
    setGameFight(aRoomID:string, aPlayerID:string, aAttack:number, aDefender:number):boolean
    {
        let room = this.mRooms.get(aRoomID);
        if(!room)
        {
            return false;
        }
        
        let result = room.setGameFight(aPlayerID, aAttack, aDefender);
        if(result)
        {
            room.generatePairings();
        }

        return result;
    }

    clearGameRoundPlayer(aRoomID:string)
    {
        let room = this.mRooms.get(aRoomID);
        if(!room)
        {
            return;
        }
        room.mGameManager.clearGameRoundPlayer();
    }

    isRoomExist(aRoomID:string):boolean
    {
        return this.mRooms.has(aRoomID);
    }
}