'use strict';

/**
 *
 *
 * @author Mai
 * @date 2018/10/30
 * @version
 */

const infoConst = require('../const/tender_info');
const parseInfo = infoConst.parseInfo;
const arrayInfo = infoConst.arrayInfo;
const defaultInfo = infoConst.defaultInfo;

module.exports = app => {

    class TenderInfo extends app.BaseService {

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

        /**
         * 新增 标段相关信息
         *
         * @param tenderId - 标段Id
         * @param projectId - 项目Id
         * @param transaction - 事务
         * @returns {Promise<void>}
         */
        async addTenderInfo(tenderId, projectId, transaction) {
            const info = JSON.parse(JSON.stringify(defaultInfo));
            info.tid = tenderId;
            info.pid = projectId;
            for (const pi of parseInfo) {
                info[pi] = JSON.stringify(info[pi])
            }
            for (const pi of arrayInfo) {
                info[pi] = JSON.stringify(info[pi])
            }

            if (transaction) {
                await transaction.insert(this.tableName, info);
            } else {
                await this.db.insert(this.tableName, info);
            }
            return info;
        }

        /**
         * 获取标段相关信息
         * @param tenderId
         * @returns {Promise<void>}
         */
        async getTenderInfo(tenderId) {
            let info = await this.getDataByCondition({tid: tenderId});
            // 兼容不存在info的情况
            if (!info) {
                info = await this.addTenderInfo(tenderId, this.ctx.session.sessionProject.id);
            }
            for (const pi of parseInfo) {
                info[pi] = !info[pi] || info[pi] === '' ? defaultInfo[pi] : JSON.parse(info[pi]);
                this.ctx.helper._.defaults(info[pi], defaultInfo[pi]);
            }
            for (const ai of arrayInfo) {
                info[ai] = !info[ai] || info[ai] === '' ? defaultInfo[ai] : JSON.parse(info[ai]);
            }
            return info;
        }

        /**
         * 保存标段相关信息
         *
         * @param data
         * @returns {Promise<void>}
         */
        async saveTenderInfo(tenderId, data) {
            for (const di in data) {
                if (parseInfo.indexOf(di) >= 0 || arrayInfo.indexOf(di) >= 0) {
                    data[di] = JSON.stringify(data[di]);
                }
            }
            await this.db.update(this.tableName, data, {where: {tid: tenderId}});
        }

        async savePrecision(tenderId, newPrecision, oldPrecision, decimal) {
            const changePrecision = [];
            const units = await this.ctx.service.ledger.getTenderUsedUnits(tenderId);
            const defUnits = this._.map(newPrecision, 'units');
            const otherUnits = units.filter(function (u) {return defUnits.indexOf(u) === -1});
            let changeUnits = [];
            for (const prop in newPrecision) {
                if (oldPrecision[prop]) {
                    if (newPrecision[prop].value < oldPrecision[prop].value) {
                        changePrecision.push(newPrecision[prop]);
                    }
                } else {
                    changePrecision.push(newPrecision[prop]);
                }
            }
            for (const cp of changePrecision) {
                if (cp.unit) {
                    changeUnits.push(cp.unit);
                } else {
                    changeUnits.push(otherUnits);
                }
            }
            changeUnits = this._.flatten(changeUnits);

            if (changeUnits.length > 0) {
                const bills = await this.ctx.service.ledger.getAllDataByCondition({
                    columns: ['id', 'unit', 'unit_price', 'sgfh_qty', 'sjcl_qty', 'qtcl_qty', 'deal_qty'],
                    where: {tender_id: tenderId, unit: changeUnits, is_leaf: true}
                });
                const pos = changeUnits.length > 0 ? await this.ctx.service.pos.getPosDataByUnits(tenderId, changeUnits) : [];

                for (const b of bills) {
                    const precision = this.ctx.helper.findPrecision(newPrecision, b.unit);
                    const bPos = this._.filter(pos, {lid: b.id});
                    if (bPos.length > 0) {
                        let sgfh_qty = 0, sjcl_qty = 0, qtcl_qty = 0, quantity = 0;
                        for (const p of bPos) {
                            this.ctx.helper.checkFieldPrecision(p, ['sgfh_qty', 'sjcl_qty', 'qtcl_qty'], precision.value);
                            p.quantity = this.ctx.helper.add(this.ctx.helper.add(p.sgfh_qty, p.sjcl_qty), p.qtcl_qty);
                            sgfh_qty = this.ctx.helper.add(sgfh_qty, p.sgfh_qty);
                            sjcl_qty = this.ctx.helper.add(sjcl_qty, p.sjcl_qty);
                            qtcl_qty = this.ctx.helper.add(qtcl_qty, p.qtcl_qty);
                            quantity = this.ctx.helper.add(quantity, p.quantity);
                        }
                        b.sgfh_qty = sgfh_qty;
                        b.sjcl_qty = sjcl_qty;
                        b.qtcl_qty = qtcl_qty;
                        b.quantity = quantity;
                    } else {
                        this.ctx.helper.checkFieldPrecision(b, ['sgfh_qty', 'sjcl_qty', 'qtcl_qty', 'deal_qty'], precision.value);
                    }
                    b.quantity = this.ctx.helper.add(this.ctx.helper.add(b.sgfh_qty, b.sjcl_qty), b.qtcl_qty);
                    b.sgfh_tp = this.ctx.helper.mul(b.sgfh_qty, b.unit_price, decimal.tp);
                    b.sjcl_tp = this.ctx.helper.mul(b.sjcl_qty, b.unit_price, decimal.tp);
                    b.qtcl_tp = this.ctx.helper.mul(b.qtcl_qty, b.unit_price, decimal.tp);
                    b.deal_tp = this.ctx.helper.mul(b.deal_qty, b.unit_price, decimal.tp);
                    b.total_price = this.ctx.helper.mul(b.quantity, b.unit_price, decimal.tp);
                }

                const transaction = await this.db.beginTransaction();
                try {
                    await transaction.update(this.tableName,
                        {precision: JSON.stringify(newPrecision)}, {where: {tid: tenderId}});
                    if (bills.length > 0) await transaction.updateRows(this.ctx.service.ledger.tableName, bills);
                    if (pos.length > 0) await transaction.updateRows(this.ctx.service.pos.tableName, pos);
                    await transaction.commit();
                } catch (err) {
                    await transaction.rollback();
                    throw err;
                }
            } else {
                await this.db.update(this.tableName,
                    {precision: JSON.stringify(newPrecision)}, {where: {tid: tenderId}});
            }
        }

        async saveDecimal(tenderId, newDecimal, oldDecimal) {
            const changeBills = [], calcUp = newDecimal.up < oldDecimal.up, calcTp = newDecimal.tp !== oldDecimal.tp;
            if (calcUp || calcTp) {
                const bills = await this.ctx.service.ledger.getAllDataByCondition({
                    columns: ['id', 'unit_price', 'sgfh_qty', 'sjcl_qty', 'qtcl_qty', 'deal_qty', 'quantity'],
                    where: {tender_id: tenderId, is_leaf: true}
                });
                for (const b of bills) {
                    const cb = { id: b.id };
                    cb.unit_price = calcUp ? this.ctx.helper.round(b.unit_price, newDecimal.up) : b.unit_price;
                    cb.sgfh_tp = this.ctx.helper.mul(b.sgfh_qty, cb.unit_price, newDecimal.tp);
                    cb.sjcl_tp = this.ctx.helper.mul(b.sjcl_qty, cb.unit_price, newDecimal.tp);
                    cb.qtcl_tp = this.ctx.helper.mul(b.qtcl_qty, cb.unit_price, newDecimal.tp);
                    cb.deal_tp = this.ctx.helper.mul(b.deal_qty, cb.unit_price, newDecimal.tp);
                    cb.total_price = this.ctx.helper.mul(b.quantity, cb.unit_price, newDecimal.tp);
                    changeBills.push(cb);
                }
            }
            if (changeBills.length > 0) {
                const transaction = await this.db.beginTransaction();
                try {
                    await transaction.update(this.tableName,
                        {decimal: JSON.stringify(newDecimal)}, { where: { tid: tenderId }});
                    await transaction.updateRows(this.ctx.service.ledger.tableName, changeBills);
                    await transaction.commit();
                } catch(error) {
                    await transaction.rollback();
                    throw error;
                }
            } else {
                await this.db.update(this.tableName,
                    {decimal: JSON.stringify(newDecimal)}, { where: { tid: tenderId }});
            }
        }
    }

    return TenderInfo;
};