'use strict';

/**
 *
 *
 * @author Mai
 * @date 2021/11/9
 * @version
 */
const defaultDecimal = {
    qty: 3,
    tp: 0,
    up: 2,
};

module.exports = app => {

    class Budget extends app.BaseService {

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

        /**
         * 数据规则
         *
         * @param {String} scene - 场景
         * @return {Object} - 返回数据规则
         */
        rule(scene) {
            let rule = {};
            switch (scene) {
                case 'add':
                    rule = {
                        name: { type: 'string', required: true, min: 2 },
                        std_id: { type: 'string', required: true, min: 1 },
                    };
                    break;
                case 'save':
                    rule = {
                        name: { type: 'string', required: true, min: 2, max: 100, },
                    };
                default:
                    break;
            }

            return rule;
        }

        async getBudget(admin) {
            let result = await this.getAllDataByCondition({
                where: { pid: this.ctx.session.sessionProject.id },
                orders: [['name', 'asc']],
            });
            if (admin) return result;

            const permissionConst = this.ctx.service.budgetPermission.PermissionConst;
            const permissionBudget = await this.ctx.service.budgetPermission.getUserPermission();
            result = result.filter(x => {
                const pb = permissionBudget.find(y => { return x.id === y.bid});
                if (pb) {
                    x.canEdit = pb.permission.indexOf(permissionConst.edit.value) >= 0;
                }
                return !!pb;
            });
            return result;
        }

        async getCurBudget(id) {
            const result = await this.getDataById(id);
            result.decimal = result.decimal ? JSON.parse(result.decimal) : {};
            this.ctx.helper._.defaults(result.decimal, defaultDecimal);
            return result;
        }

        /**
         * 新增标段
         *
         * @param {Object} data - 提交的数据
         * @return {Boolean} - 返回新增结果
         */
        async add(data) {
            const budgetStd = await this.ctx.service.budgetStd.getDataById(data.std_id);
            if (!budgetStd) throw '选择的概算标准不存在，请刷新页面重试';

            const conn = await this.db.beginTransaction();
            try {
                // 获取当前用户信息
                const sessionUser = this.ctx.session.sessionUser;
                // 获取当前项目信息
                const sessionProject = this.ctx.session.sessionProject;

                const insertData = {
                    pid: sessionProject.id, user_id: sessionUser.accountId, in_time: new Date(),
                    name: data.name, std_id: data.std_id,
                };
                const operate = await conn.insert(this.tableName, insertData);

                if (operate.insertId === 0) throw '新增标段数据失败';

                // 获取合同支付模板 并添加到标段
                await this.ctx.service.budgetGu.initByTemplate(conn, operate.insertId, budgetStd.gu_template_id);
                await this.ctx.service.budgetGai.initByTemplate(conn, operate.insertId, budgetStd.gai_template_id);
                await this.ctx.service.budgetYu.initByTemplate(conn, operate.insertId, budgetStd.yu_template_id);
                await conn.commit();
                return await this.getDataById(operate.insertId);
            } catch (error) {
                await conn.rollback();
                throw error;
            }
        }

        /**
         * 保存标段
         *
         * @param {Number} id
         * @param {Object} postData - 表单post过来的数
         * @return {Boolean} - 返回执行结果
         */
        async save(data) {
            const result = await this.db.update(this.tableName, data);
            return result.affectedRows > 0;
        }

        /**
         * 假删除
         *
         * @param {Number} id - 删除的id
         * @return {Boolean} - 删除结果
         */
        async deleteBudget(id) {
            const updateData = { id, status: this.status.DISABLE };
            const result = await this.db.update(this.tableName, updateData);

            return result.affectedRows > 0;
        }

        /**
         * 真删除
         * @param {Number} id - 删除的标段id
         * @return {Promise<boolean>} - 结果
         */
        async deleteBudgetNoBackup(id) {
            const transaction = await this.db.beginTransaction();
            try {
                await transaction.delete(this.tableName, { id });
                await transaction.delete(this.ctx.service.budgetGu.tableName, { bid: id });
                await transaction.delete(this.ctx.service.budgetGai.tableName, { bid: id });
                await transaction.delete(this.ctx.service.budgetYu.tableName, { bid: id });
                await transaction.commit();
                return true;
            } catch (err) {
                this.ctx.log(err);
                await transaction.rollback();
                return false;
            }
        }

        async _getGuUpdateData(newDecimal, orgDecimal) {
            if (newDecimal.qty >= orgDecimal.qty && newDecimal.tp >= orgDecimal.tp) return [];
            const datas = await this.ctx.service.budgetGu.getData(this.ctx.budget.id);
            const result = [];
            for (const d of datas) {
                const dgn_qty1 = this.ctx.helper.round(d.dgn_qty1, newDecimal.qty);
                const dgn_qty2 = this.ctx.helper.round(d.dgn_qty2, newDecimal.qty);
                const total_price = d.is_leaf ? this.ctx.helper.round(d.total_price, newDecimal.tp) : 0;
                if (dgn_qty1 !== d.dgn_qty1 || dgn_qty2 !== d.dgn_qty2 || total_price !== d.total_price) {
                    result.push({ id: d.id, tree_id: d.tree_id, dgn_qty1, dgn_qty2, total_price });
                }
            }
            return result;
        }

        async _getGaiUpdateData(newDecimal, orgDecimal) {
            if (newDecimal.qty >= orgDecimal.qty && newDecimal.tp >= orgDecimal.tp) return [];
            const datas = await this.ctx.service.budgetGai.getData(this.ctx.budget.id);
            const result = [];
            for (const d of datas) {
                const dgn_qty1 = this.ctx.helper.round(d.dgn_qty1, newDecimal.qty);
                const dgn_qty2 = this.ctx.helper.round(d.dgn_qty2, newDecimal.qty);
                const total_price = d.is_leaf ? this.ctx.helper.round(d.total_price, newDecimal.tp) : 0;
                if (dgn_qty1 !== d.dgn_qty1 || dgn_qty2 !== d.dgn_qty2 || total_price !== d.total_price) {
                    result.push({ id: d.id, tree_id: d.tree_id, dgn_qty1, dgn_qty2, total_price });
                }
            }
            return result;
        }

        async _getYuUpdateData(newDecimal, orgDecimal) {
            if (newDecimal.qty >= orgDecimal.qty && newDecimal.up >= orgDecimal.up && newDecimal.tp === orgDecimal.tp) return [];
            const datas = await this.ctx.service.budgetYu.getData(this.ctx.budget.id);
            const result = [];
            for (const d of datas) {
                if (d.b_code) {
                    if (!d.is_leaf) continue;
                    const quantity = this.ctx.helper.round(d.quantity, newDecimal.qty);
                    const unit_price = this.ctx.helper.round(d.unit_price, newDecimal.up);
                    const total_price = this.ctx.helper.mul(unit_price, quantity, newDecimal.tp);
                    if (quantity !== d.quantity || unit_price !== d.unit_price || total_price !== d.total_price) {
                        result.push({ id: d.id, tree_id: d.tree_id, quantity, unit_price, total_price });
                    }
                } else {
                    const dgn_qty1 = this.ctx.helper.round(d.dgn_qty1, newDecimal.qty);
                    const dgn_qty2 = this.ctx.helper.round(d.dgn_qty2, newDecimal.qty);
                    const total_price = d.is_leaf ? this.ctx.helper.round(d.total_price, newDecimal.tp) : 0;
                    if (dgn_qty1 !== d.dgn_qty1 || dgn_qty2 !== d.dgn_qty2 || total_price !== d.total_price) {
                        result.push({ id: d.id, tree_id: d.tree_id, dgn_qty1, dgn_qty2, total_price });
                    }
                }
            }
            return result;
        }

        async saveDecimal(decimal, page) {
            const newDecimal = JSON.parse(JSON.stringify(this.ctx.budget.decimal));
            if (decimal.qty >= 0 && decimal.qty <= 6) newDecimal.qty = decimal.qty;
            if (decimal.up >= 0 && decimal.up <= 6) newDecimal.up = decimal.up;
            if (decimal.tp >= 0 && decimal.tp <= 6) newDecimal.tp = decimal.tp;

            const guDatas = await this._getGuUpdateData(newDecimal, this.ctx.budget.decimal);
            const gaiDatas = await this._getGaiUpdateData(newDecimal, this.ctx.budget.decimal);
            const yuDatas = await this._getYuUpdateData(newDecimal, this.ctx.budget.decimal);
            const conn = await this.db.beginTransaction();
            try {
                const result = await conn.update(this.tableName, { id: this.ctx.budget.id, decimal: JSON.stringify(newDecimal) });
                if (guDatas.length > 0) await conn.updateRows(this.ctx.service.budgetGu.tableName, guDatas);
                if (gaiDatas.length > 0) await conn.updateRows(this.ctx.service.budgetGai.tableName, gaiDatas);
                if (yuDatas.length > 0) await conn.updateRows(this.ctx.service.budgetYu.tableName, yuDatas);
                await conn.commit();
                switch (page) {
                    case 'gu': return { update: guDatas };
                    case 'gai': return { update: gaiDatas };
                    case 'yu': return { update: yuDatas };
                }
            } catch (err) {
                await conn.rollback();
                throw err;
            }
        }
    }

    return Budget;
};