'use strict';

/**
 *
 *
 * @author Mai
 * @date 2018/5/8
 * @version
 */

module.exports = app => {
    class DealBills extends app.BaseService {

        /**
         * 构造函数
         * @param ctx
         */
        constructor(ctx) {
            super(ctx);
            this.tableName = 'deal_bills';
        }

        /**
         * 导入Excel数据(node-xlsx)
         *
         * @param {Array} sheet - Excel文件中的全部工作表
         * @param {Number} tenderId - 所属标段Id
         * @returns {Promise<boolean>}
         */
        async importData(sheet, tenderId) {
            let result = false;
            const transaction = await this.db.beginTransaction();
            try {
                const bills = [];
                let iCode = -1, iName = -1, iUnit = -1, iUp = -1, iQty = -1, iTp = -1, bCheckCol = false;
                for (let iRow = 0; iRow < sheet.data.length; iRow++) {
                    const row = sheet.data[iRow];
                    if (!bCheckCol) {
                        for (let iCol = 0; iCol < row.length; iCol++) {
                            const value = row[iCol];
                            if (typeof value !== "string") { continue }
                            if (value === '子目号' || value === '清单编号') iCode = iCol;
                            if (value.indexOf('名称') >= 0) iName = iCol;
                            if (value.indexOf('单位') >= 0) iUnit = iCol;
                            if (value.indexOf('单价') >= 0) iUp = iCol;
                            if (value.indexOf('数量') >= 0) iQty = iCol;
                            if (value.indexOf('金额') >= 0 || value.indexOf('合价') >= 0) iTp = iCol;
                        }
                        bCheckCol = (iCode >= 0 && iName >= 0 && iUnit >= 0 && iUp >= 0 && iQty >= 0);
                        if (!bCheckCol) {
                            iCode = -1;
                            iName = -1;
                            iUnit = -1;
                            iUp = -1;
                            iQty = -1;
                        }
                    } else if (this.ctx.helper.validBillsCode(row[iCode])) {
                        const data = {
                            deal_id: bills.length + 1,
                            tender_id: tenderId,
                            code: row[iCode],
                            name: row[iName],
                            unit: row[iUnit],
                            unit_price: row[iUp],
                            quantity: row[iQty],
                        };
                        if ((data.unit_price && !this._.isNumber(data.unit_price)) || (data.quantity && !this._.isNumber(data.quantity))) {
                            throw '导入的Excel的数据类型有误，请检查第' + (iRow + 1) + '行';
                        }
                        bills.push(data);
                    }
                }
                if (!bCheckCol) {
                    throw '导入的Excel表头定义有误，请下载示例检查';
                }
                if (bills.length > 0) {
                    await transaction.delete(this.tableName, {tender_id: tenderId});
                    const billsResult = await transaction.insert(this.tableName, bills);
                    if (billsResult.affectedRows !== bills.length) {
                        throw '导入签约清单数据出错';
                    }
                } else {
                    throw 'Excel文件中无签约清单数据';
                }
                await transaction.commit();
                result = true;
            } catch (err) {
                await transaction.rollback();
                throw err;
            }
            return result;
        }

        /**
         * 导入Excel数据(js-xlsx)
         *
         * @param {Array} sheet - Excel文件中的全部工作表
         * @param {Number} tenderId - 所属标段Id
         * @returns {Promise<boolean>}
         */
        async importDataJsXlsx(sheet, tenderId) {
            let result = false;
            // 整理数据
            const bills = [];
            let iCode = -1, iName = -1, iUnit = -1, iUp = -1, iQty = -1, iTp = -1, bCheckCol = false;
            for (let iRow = 0; iRow < sheet.rows.length; iRow++) {
                const row = sheet.rows[iRow];
                if (!bCheckCol) {
                    for (let iCol = 0; iCol < row.length; iCol++) {
                        const value = row[iCol];
                        if (typeof value !== "string") { continue }
                        if (value === '子目号' || value === '清单编号') iCode = iCol;
                        if (value.indexOf('名称') >= 0) iName = iCol;
                        if (value.indexOf('单位') >= 0) iUnit = iCol;
                        if (value.indexOf('单价') >= 0) iUp = iCol;
                        if (value.indexOf('数量') >= 0) iQty = iCol;
                        if (value.indexOf('金额') >= 0 || value.indexOf('合价') >= 0) iTp = iCol;
                    }
                    bCheckCol = (iCode >= 0 && iName >= 0 && iUnit >= 0 && iUp >= 0 && iQty >= 0 && iTp >= 0);
                    if (!bCheckCol) {
                        iCode = -1;
                        iName = -1;
                        iUnit = -1;
                        iUp = -1;
                        iQty = -1;
                        iTp = -1;
                    }
                } else if (this.ctx.helper.validBillsCode(row[iCode])) {
                    const data = {
                        deal_id: bills.length + 1,
                        tender_id: tenderId,
                        code: this.ctx.helper.replaceReturn(row[iCode]),
                        name: this.ctx.helper.replaceReturn(row[iName]),
                        unit: this.ctx.helper.replaceReturn(row[iUnit]),
                        unit_price: (row[iUp] === undefined || row[iUp] === null) ? 0 : this._.toNumber(row[iUp]),
                        quantity: (row[iQty] === undefined || row[iQty] === null) ? 0 : this._.toNumber(row[iQty]),
                        total_price: (row[iTp] === undefined || row[iTp] === null) ? 0 : this._.toNumber(row[iTp]),
                    };
                    if (this._.isNaN(data.unit_price) || this._.isNaN(data.quantity) || this._.isNaN(data.total_price)) {
                        throw '导入的Excel的数据类型有误，请检查第' + (iRow + 1) + '行';
                    }
                    bills.push(data);
                }
            }
            if (!bCheckCol) {
                throw '导入的Excel表头定义有误，请下载示例检查';
            }
            // 写入数据
            const transaction = await this.db.beginTransaction();
            try {
                if (bills.length > 0) {
                    await transaction.delete(this.tableName, {tender_id: tenderId});
                    const billsResult = await transaction.insert(this.tableName, bills);
                    if (billsResult.affectedRows !== bills.length) {
                        throw '导入签约清单数据出错';
                    }
                } else {
                    throw 'Excel文件中无签约清单数据';
                }
                await transaction.commit();
                result = true;
            } catch (err) {
                await transaction.rollback();
                throw err;
            }
            return result;
        }
    }

    return DealBills;
}