import { ITEM_CHANGE_REASON, LADDER_OPP_STATUS, LADDER_STATUS, MAIL_TYPE, PUSH_ROUTE, REDIS_KEY } from "../consts";
import { HeroType } from "../db/Hero";
import { LadderMatchModel, LadderMatchType, LadderUpdateInter } from "../db/LadderMatch";
import { LadderMatchRecModel, LadderMatchRecType } from "../db/LadderMatchRec";
import { RoleModel, RoleType } from "../db/Role";
import { LadderDataReturn, LadderDefense, LadderOppDetailReturn, LadderOppPlayerHeroInfo, LadderOppPlayerInDB, LadderOppPlayerInfo, LadderOppPlayerReturn } from "../domain/battleField/ladder";
import { RoleAndGuildRankInfo, RoleRankInfo } from "../domain/rank";
import { gameData, getDicLadderMatchByMyRank, getLadderRankReward } from "../pubUtils/data";
import { EXTERIOR, LADDER } from "../pubUtils/dicParam";
import { ItemInter, RewardInter } from "../pubUtils/interface";
import { getRandValueByMinMax, shouldRefresh } from "../pubUtils/util";
import { sendMailByContent } from "./mailService";
import { getHeroesAttributes } from "./playerCeService";
import { sendMessageToUserWithSuc } from "./pushService";
import { Rank } from "./rankService";
import { addItems } from "./role/rewardService";
import { combineItems } from "./role/util";
import { WarReward } from "./warRewardService";

export function refreshLadderDaily(ladderData: LadderMatchType) {

    let { refOppCnt = 0, buyCnt = 0, challengeCnt = 0, refDaily } = ladderData;
    let curTime = new Date();
    let shouldRefOpp = shouldRefresh(refDaily, curTime);
    if (shouldRefOpp) {
        refOppCnt = 0; buyCnt = 0; challengeCnt = 0; refDaily = curTime;
    }
    return {
        shouldRefOpp,
        refOppCnt, refDaily, buyCnt, challengeCnt,
    }
}

export function getBuyCntCost(buyCnt: number, incCnt: number) {
    let items: ItemInter[] = [];
    for(let i = 1; i <= incCnt; i++) {
        let cost = getSingleBuyCost(buyCnt + i);
        if(!cost) return false;
        items.push(cost);
    }
    return combineItems(items);
}

function getSingleBuyCost(buyCnt: number) {
    for(let { id, count, times } of gameData.ladderConsume) {
        if(buyCnt <= times) {
            return { id, count }
        }
    }
    return false
}

export async function getLadderData(roleId: string, needOppPlayer: boolean) {
    let ladderData = await LadderMatchModel.findByRoleId(roleId);
    if(!ladderData) {
        let role = await RoleModel.findByRoleId(roleId);
        ladderData = await LadderMatchModel.createLadder({ serverId: role.serverId, roleId: role.roleId, role: role._id });
    }

    // 刷新次数
    let refOppObj = refreshLadderDaily(ladderData);
    if(refOppObj.shouldRefOpp) {
        ladderData = await LadderMatchModel.updateByRoleId(roleId, refOppObj);
    }

    let ladderRec = await LadderMatchRecModel.findNotCompleteRecByRoleId(roleId);

    let result = new LadderDataReturn();
    result.setLadderData(ladderData, ladderRec);

    if(needOppPlayer) {
        let oppPlayersReturn = await getLadderEnemies(ladderData);
        result.setOppPlayers(oppPlayersReturn);
    }
    return result;
}

export async function getLadderEnemies(ladderData: LadderMatchType) {
    let oppPlayers = ladderData.oppPlayers||[];
    if(!oppPlayers || oppPlayers.length) {
        return await getOppPlayerDetailByDb(ladderData.serverId, ladderData.oppPlayers);
    } else {
        return await refreshLadderEnemies(ladderData);
    }
}

async function getOppPlayerDetailByDb(serverId: number, oppPlayers: LadderOppPlayerInDB[]) {
    let oppPlayersReturn: LadderOppPlayerReturn[] = [];
    for(let oppPlayer of oppPlayers) {
        let player = await generateOppPlayer(serverId, oppPlayer.rank, oppPlayers);
        oppPlayersReturn.push(player);
    }
    return oppPlayersReturn;
}

// 获取redis当中的玩家排名数据
export async function getLadderMatchByRank(serverId: number, max: number|'+inf', min: number|'-inf') {
    let r = new Rank(REDIS_KEY.LADDER, { serverId }, false, 4000);
    let rawResults = await r.getRankByRangeRaw(max, min, false);
    return rawResults.map(cur => ({ rank: cur.scores[0], roleId: cur.field }))
}

export async function refreshLadderEnemies(ladderData: LadderMatchType, update: LadderUpdateInter = {}) {
    let rankNumbers = randOppRankNumbers(ladderData.rank); // 随机出想要的排名

    let min = rankNumbers[0], max = rankNumbers[rankNumbers.length - 1];
    let ranks = await getLadderMatchByRank(ladderData.serverId, max, min);
    
    let oppPlayers: LadderOppPlayerReturn[] = [], oppPlayersSave: LadderOppPlayerInDB[] = [];
    for(let rank of rankNumbers) {
        let player = await generateOppPlayer(ladderData.serverId, rank, ranks);
        oppPlayersSave.push({ rank, roleId: player.roleId, isRobot: player.isRobot });
        oppPlayers.push(player);
    }
    await LadderMatchModel.updateByRoleId(ladderData.roleId, { ...update, oppPlayers: oppPlayersSave });
    return oppPlayers
}

async function generateOppPlayer(serverId: number, rank: number, oppPlayers: { rank: number, roleId: string, isRobot?: boolean }[]) {
    let player = oppPlayers.find(cur => cur.rank == rank && !cur.isRobot);
    let result = new LadderOppPlayerReturn(rank, !player);
    if(player) {
        let r = new Rank(REDIS_KEY.LADDER, { serverId }, false);
        let param = <RoleRankInfo>await r.getParam(player.rank, player.roleId, [player.rank]);
        result.setByRedis(param, 0);
    } else {
        let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(rank);
        result.setByRobot(dicLadderDifficultRatio);
    }
    return result;
}

function randOppRankNumbers(myRank: number) {
    let dicLadderMatch = getDicLadderMatchByMyRank(myRank);
    if(!dicLadderMatch) return new Array(5).fill(3001);

    let beforeRanks = randomRank(true, myRank, dicLadderMatch.rangeBeforeMax, dicLadderMatch.rangeBeforeNum, dicLadderMatch.gap.min, dicLadderMatch.gap.max);
    let afterRanks = randomRank(false, myRank, dicLadderMatch.rangeAfterMax, dicLadderMatch.rangeAfterNum, dicLadderMatch.gap.min, dicLadderMatch.gap.max);

    let topTen = getNumberArr(1, 10);
    let ranks = [...topTen, ...beforeRanks, ...afterRanks];
    return uniqueArr(ranks.sort((a, b) => a - b));
}

function uniqueArr<T>(arr: T[]) {
    return arr.filter( (item, index, arr) => {
        //当前元素，在原始数组中的第一个索引==当前索引值，否则返回当前元素
        return arr.indexOf(item) === index;
    });
}

function getNumberArr(from: number, to: number) {
    let arr: number[] = [];
    for(let i = from; i <= to; i++) arr.push(i);
    return arr;
}

function randomRank(isBefore: boolean, myRank: number, range: number, num: number, gapMin: number, gapMax: number) {
    let ratio = isBefore? -1: 1;
    let arr: number[] = [], result = myRank;
    while(arr.length < num) {
        let minMax = [ result + ratio * gapMin, result + ratio * gapMax ].sort((a, b) => a - b);
        let num = getRandValueByMinMax(minMax[0], minMax[1], 0);
        if(isOver(isBefore, myRank, range, num)) break;
        result = num;
        arr.push(result);
    }
    return arr;
}

// 超出匹配范围
function isOver(isBefore: boolean, myRank: number, range: number, result: number) {
    if(isBefore) {
        console.log('before', myRank - range < result)
        return result < myRank - range;
    } else {
        console.log('after', myRank + range > result)
        return result > myRank + range;
    }
}

export function checkRank(myRank: number, targetRank: number) {
    let dicLadderMatch = getDicLadderMatchByMyRank(myRank);
    if(!dicLadderMatch) {
        if(myRank == 0 && targetRank == 3001) return true;
        return false
    }
    if(myRank < targetRank) { // 向后打
        if(myRank + dicLadderMatch.rangeAfterMax < targetRank) return false;
    } else { // 向前打
        if(myRank - dicLadderMatch.rangeBeforeMax > targetRank) return false;
    }

    if(targetRank <= 10 && !dicLadderMatch.topChallenge) {
        return false
    }

    return true;
}

export async function getLadderOppStatus(ladderData: LadderMatchType, targetRoleId: string, myRank: number, rank: number) {
    if(ladderData.rank != myRank) return { status: LADDER_OPP_STATUS.MY_RANK_CHANGE };
    let { oppPlayers } = ladderData;
    let curOppPlayer = oppPlayers.find(cur => cur.roleId == targetRoleId);
    if(!curOppPlayer|| curOppPlayer.rank != rank) return { status: LADDER_OPP_STATUS.OPP_RANK_CHANGE };

    if(curOppPlayer.isRobot) {
        if(rank <= 3000) {
            let hisLadderData = await LadderMatchModel.checkByRank(rank);
            if(hisLadderData) return { status: LADDER_OPP_STATUS.OPP_RANK_CHANGE };
        }

        return { status: LADDER_OPP_STATUS.BATTLE, isRobot: true };
    } else {
        let hisLadderData = await LadderMatchModel.lock(targetRoleId, rank);
        if(!hisLadderData) return { status: LADDER_OPP_STATUS.OPP_IS_LOCKED };

        return { status: LADDER_OPP_STATUS.BATTLE, isRobot: false, hisLadderData };
    }
}

/**
 * 
 * @param isRobot 是否是机器
 * @param isDefense 是攻还是守方
 * @param rank 排名
 * @param ladderData 需要populate过的ladderMatch表
 * @returns 
 */
export function generateInitRecInfo(isRobot: boolean, isDefense: boolean, rank: number, ladderData: LadderMatchType) {
    if(isRobot) {
        let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(rank);
        let dicWarJson = gameData.warJson.get(dicLadderDifficultRatio.gkId)||[];

        let heroes: LadderOppPlayerHeroInfo[] = [];
        for(let json of dicWarJson) {
            if(json.relation == 2) {
                let hero = new LadderOppPlayerHeroInfo();
                hero.setByWarJson(json);
                heroes.push(hero);
            }
        }
        let info = new LadderOppPlayerInfo();
        info.initByRobot(dicLadderDifficultRatio, heroes, isDefense);
        return info;
    } else {
        let defCe = calculateDefCeByDefense(ladderData.defense);
        let role = <RoleType>ladderData.role;
        let heroes: LadderOppPlayerHeroInfo[] = [];
        if(isDefense) { // 防守方可以将武将也存入，攻方要等出战
            let defenseHeroes = ladderData.defense?.heroes||[];
            for(let defenseHero of defenseHeroes) {
                let hero = new LadderOppPlayerHeroInfo();
                hero.setByDefenseHero(<HeroType>defenseHero.hero);
                heroes.push(hero);
            }
        }
        let info = new LadderOppPlayerInfo();
        info.initByPlayer(rank, role, heroes, defCe, isDefense);
        return info;
    }
} 

function calculateDefCeByDefense(defense: LadderDefense) {
    if(!defense) return 0;
    let ce = 0;
    for(let hero of defense.heroes) {
        ce += hero.ce;
    }
    return ce;
}

export async function ladderTimeout(battleCode: string, status: LADDER_STATUS) {
    let rec = await LadderMatchRecModel.timeout(battleCode);
    if(status == LADDER_STATUS.CHECK) {
        await sendMessageToUserWithSuc(rec.roleId1, PUSH_ROUTE.LADDER_CHECK_STOP, { battleCode });
    } else if (status == LADDER_STATUS.BATTLE) {
        await sendMessageToUserWithSuc(rec.roleId1, PUSH_ROUTE.LADDER_BATTLE_STOP, { battleCode });
    }
}

export async function battleEndWhenChange(ladderMatch: LadderMatchType) {
    if(!ladderMatch) return;

    // 更新redis
    if(ladderMatch.rank > 0 && ladderMatch.rank < 3001) {
        let r = new Rank(REDIS_KEY.LADDER, { serverId: ladderMatch.serverId });
        r.setRankWithRoleInfo(ladderMatch.roleId, ladderMatch.rank, 0);
    }

    // 刷新对手
    let oppPlayers = await refreshLadderEnemies(ladderMatch);
    await sendMessageToUserWithSuc(ladderMatch.roleId, PUSH_ROUTE.LADDER_RANK_UPDATE, {
        oldRank: ladderMatch.oldRank,
        newRank: ladderMatch.rank,
        oppPlayers
    });
    return oppPlayers
}

export async function ladderBattleEndReward(roleId: string, roleName: string, sid: string, rank: number, isSuccess: boolean, historyRank: number, num: number) {
    let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(rank);
    if(!dicLadderDifficultRatio) return null;
    let warReward = new WarReward(roleId, roleName, sid, dicLadderDifficultRatio.gkId, isSuccess);
    warReward.setLadderReward(dicLadderDifficultRatio.randomFailReward, true);
    warReward.setLadderReward(dicLadderDifficultRatio.randomWinReward, false);
    let battleGoods = await warReward.saveReward(num);
    let breakRewards: RewardInter[] = [];
    for(let i = historyRank - 1; i >= rank; i--) {
        let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(i);
        breakRewards.push(...(dicLadderDifficultRatio?.onceReward||[]));
    }
    let breakGoods = breakRewards.length > 0? await addItems(roleId, roleName, sid, dicLadderDifficultRatio?.onceReward||[], ITEM_CHANGE_REASON.LADDER_BATTLE_REWARD): [];
    return { battleGoods, breakGoods };
}

export function completeLadderRanks(ranks: RoleAndGuildRankInfo[]) {
    let result: RoleAndGuildRankInfo[] = [];
    for(let i = 1; i <= 200; i++) {
        let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(i);
        let { head, ce, spine, level } = dicLadderDifficultRatio;
        let rank = ranks.find(cur => cur.rank == i);
        if(rank) {
            result.push(rank);
        } else {
            let rank = new RoleAndGuildRankInfo(i, 0);
            rank.setByField(`robot${i}`, LADDER.LADDER_ROBOT_NAME, head, EXTERIOR.EXTERIOR_FACECASE, spine, level, 1, '', ce );
            result.push(rank);
        }
    }
    return result;
}

export async function sendLadderDailyReward(serverId: number) {
    let ranks = await getLadderMatchByRank(serverId, '+inf', '-inf');
    for(let { rank, roleId } of ranks) {
        let dicRankReward = getLadderRankReward(rank);
        if(dicRankReward && dicRankReward.reward && dicRankReward.reward.length > 0) {
            await sendMailByContent(MAIL_TYPE.LADDER, roleId, { params: [`${rank}`], goods: dicRankReward.reward });
        }
    }
}

export async function getLadderOppDetailData(rec: LadderMatchRecType) {
    let isRobot = rec.defenseInfo.isRobot;
    let dicLadderDifficultRatio = gameData.ladderDifficultRatio.get(rec.defenseInfo.oldRank);
    let result = new LadderOppDetailReturn(rec);
    if(isRobot) {
        result.setByRobot(dicLadderDifficultRatio);
    } else {
        let hisLadderData = await LadderMatchModel.findByRoleIdAndInclude(rec.roleId2);
        let dicWarJson = gameData.warJson.get(dicLadderDifficultRatio.gkId)
        result.setByPlayer(hisLadderData, dicWarJson);
        let attrByHid = await getHeroesAttributes(rec.roleId2);
        for(let [hid, attribute] of attrByHid) {
            result.setAttribute(hid, attribute.getAttributesToString());
        }
    }
    return result;
}