import { Application, BackendSession } from "pinus";
import { resResult, getRandEelm } from "../../../pubUtils/util";
import { STATUS, ROLE } from "../../../consts";
import Role, { RoleModel, RoleType } from "../../../db/Role";
import { getBeforeDaySeconds } from "../../../pubUtils/timeUtil";
import { FriendApplyModel } from "../../../db/FriendApply";
import { FriendApplyParams, FriendListParam } from "../../../domain/roleField/friend";
import { FriendShipModel, FriendShipType } from "../../../db/FriendShip";
import { FriendRelationModel } from "../../../db/FriendRelation";
import { isRoleOnline } from "../../../services/redisService";

export default function (app: Application) {
    return new FriendHandler(app);
}

export class FriendHandler {

    constructor(private app: Application) {
    }

    // 获取推荐好友列表
    public async getRecommend(msg: { }, session: BackendSession) {
        let roleId: string = session.get('roleId');
        
        const day = getBeforeDaySeconds(1);

        const { lv } = await RoleModel.findByRoleId(roleId, ROLE.GET_LV); 
        const allList = await RoleModel.getRecommedList(roleId, lv - 5, lv + 5, day);
        let list = getRandEelm(allList, 10);
        if(!list.length) list = allList;

        return resResult(STATUS.SUCCESS, { list });
    }

    // 申请
    public async applyFriend(msg: { roleIds: string[] }, session: BackendSession) {
        
        let roleId: string = session.get('roleId');
        let roleIds = msg.roleIds;

        const role = await RoleModel.findByRoleId(roleId, ROLE.GET_ROLE_ID); 
        for(let hisRoleId of roleIds) {
            await FriendApplyModel.createApply(hisRoleId, role);
        }

        return resResult(STATUS.SUCCESS, {
            isSuccess: true
        });
    }
    
    // 获取申请列表
    public async getApplyList(msg: { lastApplyCode: string }, session: BackendSession) {
        // TODO 分页
        let roleId: string = session.get('roleId');

        let list = await FriendApplyModel.getApplyList(roleId);
        let result = new Array<FriendApplyParams>();
        for(let apply of list) {
            let friend = <RoleType>apply.friend;
            let param = new FriendApplyParams(apply.applyCode, friend);
            result.push(param);
        }
        return resResult(STATUS.SUCCESS, {
            list: result
        });
    }

    // （一键）同意/拒绝申请
    public async handleApply(msg: { applyCodeList: string[], isPass: boolean }, session: BackendSession) {
        let roleId: string = session.get('roleId');

        let { applyCodeList, isPass } = msg;

        let role = await RoleModel.findByRoleId(roleId);

        let applyList = await FriendApplyModel.getApplyListByCode(applyCodeList);
        let result = new Array<FriendApplyParams>();
        if(isPass) {
            for(let apply of applyList) {
                let friend = <RoleType>apply.friend;
                // TODO检查我的好友人数上限，检查加过好友没有
                // TODO检查对方的好友人数上限
                // 创建friendShip
                let friendShip = await FriendShipModel.createFriendShip([roleId, friend.roleId]);
                if(!friendShip) continue;
                // 创建或push我的好友relation
                let result1 = await FriendRelationModel.addFriend(roleId, friend, friendShip);
                // 创建或push他的好友relation
                let result2 = await FriendRelationModel.addFriend(friend.roleId, role, friendShip);
            }
        }

        // await FriendApplyModel.deleteApply(applyCodeList);

        return resResult(STATUS.SUCCESS, {
            list: result
        });
    }

    // 获取好友列表
    public async getFriendList(msg: { }, session: BackendSession) {
        let roleId: string = session.get('roleId');

        let role = await RoleModel.findByRoleId(roleId);
        let list = new Array<FriendListParam>();
        let myRelation = await FriendRelationModel.findFriendByRole(roleId);
        let friendList = myRelation?myRelation.friends: [];
        for(let friend of friendList) {
            let role = <RoleType>friend.role;
            let friendShip = <FriendShipType>friend.friendShip;
            if(!role || !friendShip) continue;
            let param = new FriendListParam(role, friendShip);
            let isOnline = await isRoleOnline(role.roleId);
            param.setOnline(isOnline);
            
            let frd = FriendShipModel.getRoleSendAndReceive(roleId, [roleId, role.roleId], friendShip);
            if(!frd) continue;
            let { sendHeart, receiveHeart, beSentHeart } = frd;
            if(sendHeart <= 1) {
                param.setCanSend(true);
            }
            if(beSentHeart >= 1 && receiveHeart < beSentHeart) {
                param.setCanReceive(true);
            }
            list.push(param);

        }

        let { friendCnt = 0, blockCnt = 0 } = role;
        return resResult(STATUS.SUCCESS, {
            todayReceiveCnt: 0,
            todaySendCnt: 0,
            list,
            friendCnt, blockCnt
        });
    }
}