'use strict';

const User = require('../user/user.model');
const Action = require('../action/action.model');
const Fund = require('./fund.model');
const { createAction } = require('../action/action.handler');
const { createTicket } = require('../ticket/ticket.handler');
const { deriveNewAccount } = require('../../utils/account');
const actionFilter = 'id type amount detail op createdAt';
const { inject } = require('../../common/Provider');

module.exports = {
    async getFundDetail (req, res) {
        const { userId } = res.locals.user;
        return Fund.findOne({ userId }, 'asset').then(fund => {
            return res.json({
                code: 0,
                msg: 'success',
                data: fund
            });
        }).catch(err => {
            mylog.error("[getFundDetail]", err);
            return res.json({
                code: 1,
                error: err.errmsg
            });
        });
    },
    async getActions (req, res) {
        const { userId } = res.locals.user;
        const { pageIndex = 1, pageSize = 0 } = req.query;
        return await Action.find({
            userId
        }, actionFilter).skip((pageIndex - 1) * pageSize).limit(pageSize)
        .exec().then(data => {
            return res.json({
                code: 0,
                data
            });
        })
        .catch(err => {
            return res.json({
                code: 1,
                error: err.errmsg
            }); 
        });
    },
    async getActionDetail (req, res) {
        const { id } = req.query;
        return await Action.findById(id, actionFilter).exec().then(data => {
            res.json({
                code: 0,
                data
            });
        }).catch(err => res.json({
            code: 1,
            error: err.errmsg
        }));
    },
    async getSupportCoinsList (req, res) {
        // eslint-disable-next-line no-undef
        let coinList;
        try {
            // eslint-disable-next-line no-undef
            coinList = await Provider.getModule('System').getValue('supportCoins');
        } catch (error) {
            coinList = [{
                id: 'vic',
                label: 'vic',
                fee: 0.005
            }, {
                id: 'usdt',
                label: 'usdt',
                fee: 0.005
            }];
        }
        return res.json({
            code: 0,
            data: coinList
        });
    },
    async withdraw (req, res) {
        /** 
         * 1.创建工单
         * 2.创建用户action
         * 3.返回状态
        */
        const { userId } = res.locals.user;
        const { coinId, targetAddress, amount, password } = req.body;
        // 暂且硬编码支持币种！！！！
        if (coinId !== 'usdt' && coinId !== 'vic') return res.json({
            code: 4,
            msg: '不支持的提现币种',
            error: '不支持的提现币种',
        });
        const user = await User.findById(userId).exec();
        if (user.fundPwd !== password) return res.json({
            code: 1,
            msg: '资金密码错误',
            error: '资金密码错误',
        });
        const fund = await Fund.findOne({ userId }).exec();
        if (fund.asset && fund.asset[coinId] < amount * 1.005 ) return res.json({
            code: 2,
            msg: '资金不足',
            error: 'insufficient fund'
        });
        const action = createAction(1, { userId, amount, remain: fund.asset, op: 0, detail: { targetAddress } });
        const ticket = createTicket('withdraw', { userId, amount, action, targetAddress });
        try {
            await fund.decrease(coinId, +amount);
        } catch (error) {
            mylog.error('[Fund提现] ', error);
            return res.json({
                code: 3,
                msg: '扣款失败',
                error: JSON.stringify(error)
            });
        }
        Promise.all([ticket.save(), action.save()]).then(() => {
            return res.json({
                code: 0,
                msg: '工单已创建'
            });
        }).catch(err => {
            return res.json({
                code: 3,
                msg: '工单创建失败',
                error: JSON.stringify(err)
            });
        });
    },
    getDepositAddress: inject(function (SysConfig) {
        const { ROOTSECWORD } = SysConfig;
        if (!ROOTSECWORD) throw new Error('ROOTSECWORD is required');
        return async (req, res) => {
            const { userId } = res.locals.user;
            const userFund = await Fund.findOne({userId}).exec();
            let data = userFund.tokenAddress;
            if (!data.usdtBTC || !data.usdtETH) {
                const seed = parseInt(userId.substring(0, 8), 16).toString().slice(4); //前4位与Date.now前4位重复;
                const btc = deriveNewAccount(ROOTSECWORD, { coin: 'BTC', seed });
                const eth = deriveNewAccount(ROOTSECWORD, { coin: 'ETH', seed });
                const user = await User.findByIdAndUpdate(userId, {
                    $set: {
                        tokenAddress: {
                            usdtBTC: btc,
                            usdtETH: eth
                        }
                    }
                }, { returnOriginal: false }).exec().catch(err => {
                    mylog.error(err);
                    return null;
                });
                data = user && user.tokenAddress;
            }
            return data ? res.json({
                code: 0,
                data
            }) : res.json({
                code: 1,
                error: res
            });
        };
    }),
    
    // 查询资金，直接拉数据库，区块链的查询交给定时任务
    async refreshFund (req, res) {
        // todo: 要求刷新程序去刷新
        return this.getFundList(req, res);
    },
    async getFundList (req, res) {
        const { userId } = res.locals.user;
        return Fund.findOne({userId}, 'fundList').then(fund => {
            return res.json({
                code: 0,
                data: fund.fundList
            });
        }).catch(err => {
            mylog.error(err);
            res.json({
                code: 500,
                msg: '系统错误'
            });
        });
    },
    async getBasicInfo (req, res) {
        const { userId } = res.locals.user;
        return Fund.findOne({userId}).then(async fund => {
            const start = '';   // 前天
            const end = ''; // 昨天
            const actions = await Action.find({ userId, type: 1, createdAt: { $gt: start, $lt: end } }).exec();
            // 计算昨日收益
            let revenueLastday = 0;
            if (actions && actions.length > 0) {
                for (let i = actions.length; i >= 0; i--) {
                    actions[i] && (revenueLastday += actions[i] && +actions[i].amount || 0);
                }
            }
            // 筛选有效矿晶
            let activeFund = 0;
            for (let i = fund.fundList.length; i >= 0; i--) {
                const fundItem = fund.fundList[i];
                fundItem && (activeFund += fundItem.status === 1 ? +fundItem.amount : 0);
            }
            return res.json({
                code: 0,
                data: {
                    activeFund,
                    revenueLastday,
                    revenueAll: fund.asset && fund.asset['vic']
                }
            });
        }).catch(err => {
            mylog.error(err);
            res.json({
                code: 500,
                msg: '系统错误'
            });
        });
    },
    
};