'use strict';

/**
 *
 *
 * @author Mai
 * @date 2021/7/20
 * @version
 */

module.exports = app => {

    class SumLoadHistory extends app.BaseService {

        /**
         * 构造函数
         *
         * @param {Object} ctx - egg全局变量
         * @return {void}
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'sum_load_history';
        }

        async getHistroy(tid, lid, type) {
            const his = await this.db.select(this.tableName, {
                where: { tid, lid, type },
                orders: [['load_time', 'desc']],
                limit: 1,
                offset: 0,
            });
            const result = his.length > 0 ? his[0] : null;
            if (result && result.tenders) result.tenders = JSON.parse(result.tenders);
            if (result && result.errors) result.errors = JSON.parse(result.errors);
            return result;
        }

        async getLedgerHistory(tid, lid) {
            return await this.getHistroy(tid, lid, 'ledger');
        }

        async getReviseHistory(tid, lid) {
            return await this.getHistroy(tid, lid, 'revise');
        }

        async getStageHistory(tid, lid) {
            return await this.getHistroy(tid, lid, 'stage');
        }

        async getBatchHistory(tid) {
            const sql = `SELECT * FROM ${this.tableName} WHERE id IN (SELECT MAX(id) FROM ${this.tableName} WHERE tid = ? GROUP by lid);`;
            const result = await this.db.query(sql, [tid]);
            result.forEach(x => {
                if (x && x.tenders) x.tenders = JSON.parse(x.tenders);
                delete x.errors;
            });
            return result;
        }


        async saveLedgerHistory(tid, lid, tenders, errors) {
            const data = {
                tid, lid, type: 'ledger',
                load_time: new Date(), uid: this.ctx.session.sessionUser.accountId,
                tenders: JSON.stringify(tenders), errors: errors ? JSON.stringify(errors) : '',
            };
            await this.db.insert(this.tableName, data);
            data.tenders = tenders;
            data.errors = errors;
            return data;
        }

        async saveReviseHistory(tid, rid, lid, tenders, errors) {
            const data = {
                tid, lid, type: 'revise', rid,
                load_time: new Date(), uid: this.ctx.session.sessionUser.accountId,
                tenders: JSON.stringify(tenders), errors: errors ? JSON.stringify(errors) : '',
            };
            await this.db.insert(this.tableName, data);
            data.tenders = tenders;
            data.errors = errors;
            return data;
        }

        async saveStageHistory(tid, sid, lid, tenders, errors, cover) {
            const data = {
                tid, lid, type: 'stage', sid,
                load_time: new Date(), uid: this.ctx.session.sessionUser.accountId,
                tenders: JSON.stringify(tenders), errors: errors ? JSON.stringify(errors) : '',
                cover: cover,
            };
            await this.db.insert(this.tableName, data);
            data.tenders = tenders;
            data.errors = errors;
            return data;
        }

        async getReviseLastestData(rid) {
            const sql = 'SELECT * FROM ' + this.tableName +
                '  WHERE id in ( SELECT top 1 id FROM ' + this.tableName + ' WHERE rid = ? order by load_time desc)';
            const data = await this.db.query(sql, [rid]);
            if (data.tenders) data.tenders = JSON.parse(data.tenders);
            if (data.errors) data.errors = JSON.parse(data.errors);
            return data;
        }

        async getStageLastestData(sid) {
            const sql = 'SELECT * FROM ' + this.tableName +
                '  WHERE id in ( SELECT top 1 id FROM ' + this.tableName + ' WHERE sid = ? order by load_time desc)';
            const data = await this.db.query(sql, [sid]);
            if (data.tenders) data.tenders = JSON.parse(data.tenders);
            if (data.errors) data.errors = JSON.parse(data.errors);
            return data;
        }
    }

    return SumLoadHistory;
};