Calculation/app/extend/helper.js

'use strict';

/**
 * 辅助方法扩展
 *
 * @author CaiAoLin
 * @date 2017/9/28
 * @version
 */
const moment = require('moment');
const zeroRange = 0.0000000001;
const fs = require('fs');
const path = require('path');
const streamToArray = require('stream-to-array');
const _ = require('lodash');
const bc = require('../lib/base_calc.js');
const Decimal = require('decimal.js');
Decimal.set({ precision: 50, defaults: true });
const SMS = require('../lib/sms');
const WX = require('../lib/wechat');
const timesLen = 100;
const UAParser = require('ua-parser-js');
const math = require('mathjs');

module.exports = {
    _,

    /**
     * 生成随机字符串
     *
     * @param {Number} length - 需要生成字符串的长度
     * @param {Number} type - 1为数字和字符 2为纯数字 3为纯字母
     * @return {String} - 返回生成结果
     */
    generateRandomString(length, type = 1) {
        length = parseInt(length);
        length = isNaN(length) ? 1 : length;
        let randSeed = [];
        let numberSeed = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9];
        let stringSeed = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S',
            'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
            'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'];

        switch (type) {
            case 1:
                randSeed = stringSeed.concat(numberSeed);
                stringSeed = numberSeed = null;
                break;
            case 2:
                randSeed = numberSeed;
                break;
            case 3:
                randSeed = stringSeed;
                break;
            default:
                break;
        }

        const seedLength = randSeed.length - 1;
        let result = '';
        for (let i = 0; i < length; i++) {
            const index = Math.ceil(Math.random() * seedLength);
            result += randSeed[index];
        }

        return result;
    },

    /**
     * 字节转换
     * @param {number} bytes - 字节
     * @return {string} - 大小
     */
    bytesToSize(bytes) {
        if (parseInt(bytes) === 0) return '0 B';
        const k = 1024;
        const sizes = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB'];
        const i = Math.floor(Math.log(bytes) / Math.log(k));
        // return (bytes / Math.pow(k, i)) + ' ' + sizes[i];
        return (bytes / Math.pow(k, i)).toPrecision(3) + ' ' + sizes[i];
    },

    /**
     * 浮点乘法计算
     * @param {number} arg1 - 乘数
     * @param {number} arg2 - 被乘数
     * @return {string} - 结果
     */
    accMul(arg1, arg2) {
        if (arg1 === '' || arg1 === null || arg1 === undefined || arg2 === '' || arg2 === null || arg2 === undefined) {
            return '';
        }
        let m = 0;
        const s1 = arg1.toString();
        const s2 = arg2.toString();
        try {
            m += s1.split('.')[1] !== undefined ? s1.split('.')[1].length : 0;
        } catch (e) {
            throw e;
        }
        try {
            m += s2.split('.')[1] !== undefined ? s2.split('.')[1].length : 0;
        } catch (e) {
            throw e;
        }
        return Number(s1.replace('.', '')) * Number(s2.replace('.', '')) / Math.pow(10, m);
    },

    accAdd(arg1, arg2) {
        let r1;
        let r2;
        try {
            r1 = arg1.toString().split('.')[1].length;
        } catch (e) {
            r1 = 0;
        }
        try {
            r2 = arg2.toString().split('.')[1].length;
        } catch (e) {
            r2 = 0;
        }
        const c = Math.abs(r1 - r2);
        const m = Math.pow(10, Math.max(r1, r2));
        if (c > 0) {
            const cm = Math.pow(10, c);
            if (r1 > r2) {
                arg1 = Number(arg1.toString().replace('.', ''));
                arg2 = Number(arg2.toString().replace('.', '')) * cm;
            } else {
                arg1 = Number(arg1.toString().replace('.', '')) * cm;
                arg2 = Number(arg2.toString().replace('.', ''));
            }
        } else {
            arg1 = Number(arg1.toString().replace('.', ''));
            arg2 = Number(arg2.toString().replace('.', ''));
        }
        return (arg1 + arg2) / m;
    },

    // 四舍五入或末尾加零，实现类似php的 sprintf("%.".decimal."f", val);
    roundNum(val, decimals) {
        if (val === '' || val === null) {
            return '';
        }
        if (val !== '') {
            val = parseFloat(val);
            if (decimals < 1) {
                val = (Math.round(val)).toString();
            } else {
                const num = val.toString();
                if (num.lastIndexOf('.') === -1) {
                    // num += '.';
                    // num += this.makezero(decimals);
                    val = num;
                } else {
                    const valdecimals = num.split('.')[1].length;
                    if (parseInt(valdecimals) < parseInt(decimals)) {
                        // num += this.makezero(parseInt(decimals) - parseInt(valdecimals));
                        val = num;
                    } else if (parseInt(valdecimals) > parseInt(decimals)) {
                        val = parseFloat(val) !== 0 ? Math.round(this.accMul(val, this.makemultiple(decimals))) / this.makemultiple(decimals) : this.makedecimalzero(decimals);
                        const num = val.toString();
                        if (num.lastIndexOf('.') === -1) {
                            // num += '.';
                            // num += this.makezero(decimals);
                            val = num;
                        } else {
                            const valdecimals = num.split('.')[1].length;
                            if (parseInt(valdecimals) < parseInt(decimals)) {
                                // num += this.makezero(parseInt(decimals) - parseInt(valdecimals));
                                val = num;
                            }
                        }
                    }
                }
            }
        }
        return val;
    },

    // 生成num位的0
    makezero(num) {
        const arr = new Array(num);
        for (let i = 0; i < num; i++) {
            arr[i] = 0;
        }
        return arr.join('');
    },

    // 生成num位的10倍数
    makemultiple(num) {
        return Math.pow(10, parseInt(num));
    },

    // 根据单位获取小数位数
    findDecimal(unit) {
        let value = 3;
        if (unit !== '') {
            value = this.ctx.tender.info.precision.other.value;
            const changeUnits = this.ctx.tender.info.precision;
            for (const d in changeUnits) {
                if (changeUnits[d].unit !== undefined && changeUnits[d].unit === unit) {
                    value = changeUnits[d].value;
                    break;
                }
            }
        }
        return value;
    },

    /**
     * 显示排序符号
     *
     * @param {String} field - 字段名称
     * @return {String} - 返回字段排序的符号
     */
    showSortFlag(field) {
        const sort = this.ctx.sort;
        if (!(sort instanceof Array) || sort.length !== 2) {
            return '';
        }
        sort[1] = sort[1].toUpperCase();
        return (sort[0] === field && sort[1] === 'DESC') ? '' : '-';
    },

    /**
     * 判断是否为ajax请求
     *
     * @param {Object} request - 请求数据
     * @return {boolean} 判断结果
     */
    isAjax(request) {
        let headerInfo = request.headers['x-requested-with'] === undefined ? '' : request.headers['x-requested-with'];
        headerInfo = headerInfo.toLowerCase();
        return headerInfo === 'xmlhttprequest';
    },

    /**
     * 模拟发送请求
     *
     * @param {String} url - 请求地址
     * @param {Object} data - 请求数据
     * @param {String} type - 请求类型(POST) POST | GET
     * @param {String} dataType - 数据类型 json|text
     * @return {Object} - 请求结果
     */
    async sendRequest(url, data, type = 'POST', dataType = 'json') {
        // 发起请求
        try {
            const response = await this.ctx.curl(url, {
                method: type,
                data,
                dataType,
            });
            if (response.status !== 200) {
                throw '请求失败';
            }
            return response.data;
        } catch (err) {
            throw '请求失败';
        }
    },

    /**
     * 深度验证数据
     *
     * @param {Object} rule - 数据规则
     * @return {void}
     */
    validate(rule) {
        // 先用内置的验证器验证数据
        this.ctx.validate(rule);

        // 然后再验证是否有多余的数据
        const postData = this.ctx.request.body;
        delete postData._csrf;

        const postDataKey = Object.keys(postData);
        const ruleKey = Object.keys(rule);
        // 自动增加字段则填充上，以防判断出错
        if (postData.create_time !== undefined) {
            ruleKey.push('create_time');
        }
        for (const tmp of postDataKey) {
            // 规则里面没有定义则抛出异常
            if (ruleKey.indexOf(tmp) < 0) {
                throw '参数不正确';
            }
        }
    },

    /**
     * 拆分path
     *
     * @param {String|Array} paths - 拆分字符
     * @param {String} symbol - 拆分符号
     * @return {Array} - 拆分结果
     */
    explodePath(paths, symbol = '-') {
        const result = [];
        paths = paths instanceof Array ? paths : [paths];
        for (const path of paths) {
            // 拆分数据
            const pathArray = path.split(symbol);
            // 用户缓存循环的数据
            const tmpArray = [];
            for (const tmp of pathArray) {
                // 每次循环都追加一个数据进去
                tmpArray.push(tmp);
                const tmpPathString = tmpArray.join(symbol);
                // 判断是否已经存在有对应数据
                if (result.indexOf(tmpPathString) >= 0) {
                    continue;
                }
                result.push(tmpPathString);
            }
        }

        return result;
    },

    /**
     * 基于obj, 拷贝sObj中的内容
     * obj = {a: 1, b: 2}, sObj = {a: 0, c: 3}, 返回{a: 0, b: 2, c: 3}
     * @param obj
     * @param sObj
     * @return {any}
     */
    updateObj(obj, sObj) {
        if (!obj) {
            return JSON.parse(JSON.stringify(sObj));
        }
        const result = JSON.parse(JSON.stringify(obj));
        if (sObj) {
            for (const prop in sObj) {
                result[prop] = sObj[prop];
            }
        }
        return result;
    },

    /**
     * 在数组中查找
     * @param {Array} arr
     * @param name -
     * @param value
     * @return {*}
     */
    findData(arr, name, value) {
        if (!arr instanceof Array) {
            throw '该方法仅用于数组查找';
        }

        if (arr.length === 0) { return undefined; }
        for (const data of arr) {
            if (data[name] == value) {
                return data;
            }
        }
        return undefined;
    },

    /**
     * 检查数字是否为0
     * @param {Number} value
     * @return {boolean}
     */
    checkZero(value) {
        return value === undefined || value === null || (this._.isNumber(value) && Math.abs(value) < zeroRange);
    },
    /**
     * 检查数字是否相等
     * @param {Number} value1
     * @param {Number} value2
     * @return {boolean}
     */
    checkNumberEqual(value1, value2) {
        if (value1 && value2) {
            return Math.abs(value2 - value1) > zeroRange;
        }
        return (!value1 && !value2);

    },

    /**
     * 比较编码
     * @param str1
     * @param str2
     * @param symbol
     * @return {number}
     */
    compareCode(str1, str2, symbol = '-') {
        if (!str1) {
            return 1;
        } else if (!str2) {
            return -1;
        }

        function compareSubCode(code1, code2) {
            if (numReg.test(code1)) {
                if (numReg.test(code2)) {
                    return parseInt(code1) - parseInt(code2);
                }
                return -1;

            }
            if (numReg.test(code2)) {
                return 1;
            }
            return code1 === code2 ? 0 : (code1 < code2 ? -1 : 1); // code1.localeCompare(code2);


        }
        const numReg = /^[0-9]+$/;
        const aCodes = str1.split(symbol),
            bCodes = str2.split(symbol);
        for (let i = 0, iLength = Math.min(aCodes.length, bCodes.length); i < iLength; ++i) {
            const iCompare = compareSubCode(aCodes[i], bCodes[i]);
            if (iCompare !== 0) {
                return iCompare;
            }
        }
        return aCodes.length - bCodes.length;
    },

    /**
     * 根据 清单编号 获取 章级编号
     * @param code
     * @param symbol
     * @return {string}
     */
    getChapterCode(code, symbol = '-') {
        if (!code || code === '') return '';
        const codePath = code.split(symbol);
        const reg = /^[^0-9]*[0-9]{3,4}$/;
        if (reg.test(codePath[0])) {
            const numReg = /[0-9]{3,4}$/;
            const result = codePath[0].match(numReg);
            const num = parseInt(result[0]);
            return this.mul(this.div(num, 100, 0), 100) + '';
        }
        return '10000';

    },

    /**
     * 树结构节点排序，要求最顶层节点须在同一父节点下
     * @param treeNodes
     * @param idField
     * @param pidField
     */
    sortTreeNodes(treeNodes, idField, pidField) {
        const result = [];
        const getFirstLevel = function(nodes) {
            let result;
            for (const node of nodes) {
                if (!result || result > node.level) {
                    result = node.level;
                }
            }
            return result;
        };
        const getLevelNodes = function(nodes, level) {
            const children = nodes.filter(function(a) {
                return a.level = level;
            });
            children.sort(function(a, b) {
                return a.order - b.order;
            });
            return children;
        };
        const getChildren = function(nodes, node) {
            const children = nodes.filter(function(a) {
                return a[pidField] = node[idField];
            });
            children.sort(function(a, b) {
                return a.order - b.order;
            });
            return children;
        };
        const addSortNodes = function(nodes) {
            for (let i = 0; i < nodes.length; i++) {
                result.push(nodes[i]);
                addSortNodes(getChildren(nodes[i]));
            }
        };

        const firstLevel = getFirstLevel(treeNodes);
        addSortNodes(getLevelNodes(treeNodes, firstLevel));
    },

    /**
     * 判断当前用户是否有指定权限
     *
     * @param {Number|Array} permission - 权限id
     * @return {Boolean} - 返回判断结果
     */
    hasPermission(permission) {
        let result = false;
        try {
            const sessionUser = this.ctx.session.sessionUser;
            if (sessionUser.permission === undefined) {
                throw '不存在权限数据';
            }
            let currentPermission = sessionUser.permission;
            if (currentPermission === '') {
                throw '权限数据为空';
            }
            // 管理员则直接返回结果
            if (currentPermission === 'all') {
                return true;
            }
            currentPermission = currentPermission.split(',');
            permission = permission instanceof Array ? permission : [permission];
            let counter = 0;
            for (const tmp of permission) {
                if (currentPermission[tmp] !== undefined) {
                    counter++;
                }
            }
            result = counter === permission.length;
        } catch (error) {
            result = false;
        }

        return result;
    },

    /**
     * 递归创建文件夹(fs.mkdirSync需要上一层文件夹已存在)
     * @param pathName
     * @return {Promise<void>}
     */
    async recursiveMkdirSync(pathName) {
        if (!fs.existsSync(pathName)) {
            const upperPath = path.dirname(pathName);
            if (!fs.existsSync(upperPath)) {
                await this.recursiveMkdirSync(upperPath);
            }
            await fs.mkdirSync(pathName);
        }
    },

    /**
     * 字节 保存至 本地文件
     * @param buffer - 字节
     * @param fileName - 文件名
     * @return {Promise<void>}
     */
    async saveBufferFile(buffer, fileName) {
        // 检查文件夹是否存在，不存在则直接创建文件夹
        const pathName = path.dirname(fileName);
        if (!fs.existsSync(pathName)) {
            await this.recursiveMkdirSync(pathName);
        }
        await fs.writeFileSync(fileName, buffer);
    },

    /**
     * 将文件流的数据保存至本地文件
     * @param stream
     * @param fileName
     * @return {Promise<void>}
     */
    async saveStreamFile(stream, fileName) {
        // 读取字节流
        const parts = await streamToArray(stream);
        // 转化为buffer
        const buffer = Buffer.concat(parts);
        // 写入文件
        await this.saveBufferFile(buffer, fileName);
    },

    async copyFileSync(source, target) {
        const pathName = path.dirname(target);
        if (!fs.existsSync(pathName)) {
            await this.recursiveMkdirSync(pathName);
        }
        await fs.copyFileSync(source, target);
    },

    /**
     * 检查code是否是指标模板数据
     * @param {String} code
     * @return {boolean}
     */
    validBillsCode(code) {
        const reg1 = /(^[0-9]+)([a-z0-9\-]*)/i;
        const reg2 = /([a-z0-9]+$)/i;
        return reg1.test(code) && reg2.test(code);
    },

    getNumberFormatter(decimal) {
        if (decimal <= 0) {
            return '0';
        }
        let pre = '0.';
        for (let i = 0; i < decimal; i++) {
            pre += '#';
        }
        return pre;
    },

    /**
     * 根据单位查找对应的清单精度
     * @param {tenderInfo.precision} list - 清单精度列表
     * @param {String} unit - 单位
     * @return {number}
     */
    findPrecision(list, unit) {
        if (unit) {
            for (const p in list) {
                if (list[p].unit && list[p].unit === unit) {
                    return list[p];
                }
            }
        }
        return list.other;
    },

    /**
     * 检查数据中的精度
     * @param {Object} Obj - 检查的数据
     * @param {Array} fields - 检查的属性
     * @param {Number} precision - 精度
     * @class
     */
    checkFieldPrecision(Obj, fields, precision = 2) {
        if (Obj) {
            for (const field of fields) {
                if (Obj[field]) {
                    Obj[field] = this.round(Obj[field], precision);
                }
            }
        }
    },

    /**
     * 过滤无效数据
     *
     * @param obj
     * @param fields - 有效数据的数组
     */
    filterValidFields(data, fields) {
        if (data) {
            const result = {};
            for (const prop in data) {
                if (fields.indexOf(prop) !== -1) {
                    result[prop] = data[prop];
                }
            }
            return result;
        }
        return data;

    },

    // 加减乘除方法，为方便调用，兼容num为空的情况
    // 加减法使用base_calc，乘除法使用Decimal（原因详见demo/calc_test）
    /**
     * 加法 num1 + num2
     * @param num1
     * @param num2
     * @return {number}
     */
    add(num1, num2) {
        return bc.add(num1 ? num1 : 0, num2 ? num2 : 0);
    },
    /**
     * 减法 num1 - num2
     * @param num1
     * @param num2
     * @return {number}
     */
    sub(num1, num2) {
        return bc.sub(num1 ? num1 : 0, num2 ? num2 : 0);
    },
    /**
     * 乘法 num1 * num2
     * @param num1
     * @param num2
     * @return {*}
     */
    mul(num1, num2, digit = 6) {
        if (num1 === '' || num1 === null || num2 === '' || num2 === null) {
            return 0;
        }
        return Decimal.mul(num1 ? num1 : 0, num2 ? num2 : 0).toDecimalPlaces(digit).toNumber();
    },
    /**
     * 除法 num1 / num2
     * @param num1 - 被除数
     * @param num2 - 除数
     * @return {*}
     */
    div(num1, num2, digit = 6) {
        if (num2 && !this.checkZero(num2)) {
            return Decimal.div(num1 ? num1 : 0, num2).toDecimalPlaces(digit).toNumber();
        }
        return null;

    },
    /**
     * 四舍五入(统一，方便以后万一需要置换)
     * @param {Number} value - 舍入的数字
     * @param {Number} decimal - 要保留的小数位数
     * @return {*}
     */
    round(value, decimal) {
        // return value ? bc.round(value, decimal) : null;
        return value ? new Decimal(value).toDecimalPlaces(decimal).toNumber() : null;
    },
    /**
     * 汇总
     * @param array
     * @return {number}
     */
    sum(array) {
        let result = 0;
        for (const a of array) {
            result = this.add(result, a);
        }
        return result;
    },

    /**
     * 使用正则替换字符
     * @param str
     * @param reg
     * @param subStr
     * @return {*}
     */
    replaceStr(str, reg, subStr) {
        return str ? str.replace(reg, subStr) : str;
    },
    /**
     * 替换字符串中的 换行符回车符
     * @param str
     * @return {*}
     */
    replaceReturn(str) {
        // return str
        //     ? (typeof str === 'string') ? str.replace(/[\r\n]/g, '') : str + ''
        //     : str;
        return (str && typeof str === 'string')
            ? str.replace(/[\r\n]/g, '')
            : !_.isNil(str) ? str + '' : str;
    },

    /**
     * 替换字符串中的 换行符回车符为换行符<br>
     * @param str
     * @return {*}
     */
    replaceRntoBr(str) {
        // return str
        //     ? (typeof str === 'string') ? str.replace(/[\r\n]/g, '') : str + ''
        //     : str;
        return (str && typeof str === 'string')
            ? str.replace(/[\r\n]/g, '<br>')
            : !_.isNil(str) ? str + '' : str;
    },

    /**
     * 获取 字符串 数组的 mysql 筛选条件
     *
     * @param arr
     * @return {*}
     */
    getInArrStrSqlFilter(arr) {
        let result = '';
        for (const a of arr) {
            if (result !== '') {
                result = result + ',';
            }
            result = result + this.ctx.app.mysql.escape(a);
        }
        return result;
    },

    /**
     * 合并 相关数据
     * @param {Array} main - 主数据
     * @param {Array[]}rela - 相关数据 {data, fields, prefix, relaId}
     */
    assignRelaData(main, rela) {
        const index = {},
            indexPre = 'id_';
        const loadFields = function(datas, fields, prefix, relaId) {
            for (const d of datas) {
                const key = indexPre + d[relaId];
                const m = index[key];
                if (m) {
                    for (const f of fields) {
                        if (d[f] !== undefined) {
                            m[prefix + f] = d[f];
                        }
                    }
                }
            }
        };
        for (const m of main) {
            index[indexPre + m.id] = m;
            for (const r of rela) {
                if (r.defaultData) _.assignIn(m, r.defaultData);
            }
        }
        for (const r of rela) {
            loadFields(r.data, r.fields, r.prefix, r.relaId);
        }
    },

    whereSql(where, as) {
        if (!where) {
            return '';
        }

        const wheres = [];
        const values = [];
        for (const key in where) {
            const value = where[key];
            if (Array.isArray(value)) {
                wheres.push('?? IN (?)');
            } else {
                wheres.push('?? = ?');
            }
            values.push((as && as !== '') ? as + '.' + key : key);
            values.push(value);
        }
        if (wheres.length > 0) {
            return this.ctx.app.mysql.format(' WHERE ' + wheres.join(' AND '), values);
        }
        return '';
    },
    formatMoney(s = 0, dot = ',', decimal = 2) {
        if (!s) {
            s = 0;
            return s.toFixed(decimal);
        }
        s = parseFloat((s + '').replace(/[^\d\.-]/g, '')).toFixed(decimal) + '';
        if (!decimal) {
            s += '.';
        }
        const l = s.split('.')[0].split('').reverse(),
            r = s.split('.')[1];
        let t = '';
        for (let i = 0; i < l.length; i++) {
            t += l[i] + ((i + 1) % 3 == 0 && (i + 1) != l.length ? dot : '');
        }
        return t.split('').reverse().join('') + (decimal === 0 ? '' : '.' + r);
    },

    transFormToChinese(num) {
        const changeNum = ['零', '一', '二', '三', '四', '五', '六', '七', '八', '九'];
        const unit = ['', '十', '百', '千', '万'];
        num = parseInt(num);
        const getWan = temp => {
            const strArr = temp.toString().split('').reverse();
            let newNum = '';
            for (let i = 0; i < strArr.length; i++) {
                newNum = (i == 0 && strArr[i] == 0 ? '' : (i > 0 && strArr[i] == 0 && strArr[i - 1] == 0 ? '' : changeNum[strArr[i]] + (strArr[i] == 0 ? unit[0] : unit[i]))) + newNum;
            }
            return strArr.length === 2 && newNum.indexOf('一十') !== -1 ? newNum.replace('一十', '十') : newNum;
        };
        const overWan = Math.floor(num / 10000);
        let noWan = num % 10000;
        if (noWan.toString().length < 4) noWan = '0' + noWan;
        return overWan ? getWan(overWan) + '万' + getWan(noWan) : getWan(num);
    },
    formatNum(num, pattern) {
        const strarr = num ? num.toString().split('.') : ['0'];
        const fmtarr = pattern ? pattern.split('.') : [''];
        let retstr = '';

        // 整数部分
        let str = strarr[0];
        let fmt = fmtarr[0];
        let i = str.length - 1;
        let comma = false;
        for (var f = fmt.length - 1; f >= 0; f--) {
            switch (fmt.substr(f, 1)) {
                case '#':
                    if (i >= 0) retstr = str.substr(i--, 1) + retstr;
                    break;
                case '0':
                    if (i >= 0) retstr = str.substr(i--, 1) + retstr;
                    else retstr = '0' + retstr;
                    break;
                case ',':
                    comma = true;
                    retstr = ',' + retstr;
                    break;
            }
        }
        if (i >= 0) {
            if (comma) {
                const l = str.length;
                for (;i >= 0; i--) {
                    retstr = str.substr(i, 1) + retstr;
                    if (i > 0 && ((l - i) % 3) == 0) retstr = ',' + retstr;
                }
            } else retstr = str.substr(0, i + 1) + retstr;
        }

        retstr = retstr + '.';
        // 处理小数部分
        str = strarr.length > 1 ? strarr[1] : '';
        fmt = fmtarr.length > 1 ? fmtarr[1] : '';
        i = 0;
        for (var f = 0; f < fmt.length; f++) {
            switch (fmt.substr(f, 1)) {
                case '#':
                    if (i < str.length) retstr += str.substr(i++, 1);
                    break;
                case '0':
                    if (i < str.length) retstr += str.substr(i++, 1);
                    else retstr += '0';
                    break;
            }
        }
        return retstr.replace(/^,+/, '').replace(/\.$/, '');
    },

    dateTran(time) {
        return moment(time).format('YYYY年MM月DD日 HH:mm');
    },

    // 审批日期格式：2020-5-7 9:40:30
    formatFullDate(time) {
        return moment(time).format('YYYY-MM-DD HH:mm:ss');
    },

    // 预付款详情页时间线所需格式
    formatDate(date) {
        if (!date) return '';
        const year = date.getFullYear();
        let mon = date.getMonth() + 1;
        let day = date.getDate();
        let hour = date.getHours();
        let minute = date.getMinutes();
        let scond = date.getSeconds();
        if (mon < 10) {
            mon = '0' + mon.toString();
        }
        if (day < 10) {
            day = '0' + day.toString();
        }
        if (hour < 10) {
            hour = '0' + hour.toString();
        }
        if (minute < 10) {
            minute = '0' + minute.toString();
        }
        if (scond < 10) {
            scond = '0' + scond.toString();
        }
        return `${year}<span>${mon}-${day}</span><span>${hour}:${minute}:${scond}</span>`;
    },

    timeAdd(duration) {
        const d = parseInt(duration);
        let time = 0;
        if (d === 1) {
            time = 60 * 15 * 1000;
        } else if (d === 2) {
            time = 60 * 30 * 1000;
        } else if (d === 3) {
            time = 3600 * 1000;
        } else if (d === 4) {
            time = 3600 * 2 * 1000;
        }
        return time;
    },

    async sendUserSms(userId, type, judge, msg) {
        const mobiles = [];
        if (!userId || (userId instanceof Array && userId.length === 0)) return;
        const smsUser = await this.ctx.service.projectAccount.getAllDataByCondition({ where: { id: userId } });
        for (const su of smsUser) {
            if (!su.auth_mobile || su.auth_mobile === '') continue;
            if (!su.sms_type || su.sms_type === '') continue;

            const smsType = JSON.parse(su.sms_type);
            if (smsType[type] && smsType[type].indexOf(judge) !== -1) {
                mobiles.push(su.auth_mobile);
            }
        }

        if (mobiles.length > 0) {
            const sms = new SMS(this.ctx);
            const tenderName = await sms.contentChange(this.ctx.tender.data.name);
            const projectName = await sms.contentChange(this.ctx.tender.info.deal_info.buildName);
            const ptmsg = projectName !== '' ? '项目「' + projectName + '」标段「' + tenderName + '」' : tenderName;
            const content = '【纵横计量支付】' + ptmsg + msg;
            sms.send(mobiles, content);
        }
    },

    async sendAliSms(userId, type, judge, code, data = {}) {
        // const mobiles = [];
        // if (!userId || (userId instanceof Array && userId.length === 0)) return;
        // const smsUser = await this.ctx.service.projectAccount.getAllDataByCondition({ where: { id: userId } });
        // for (const su of smsUser) {
        //     if (!su.auth_mobile || su.auth_mobile === '') continue;
        //     if (!su.sms_type || su.sms_type === '') continue;
        //
        //     const smsType = JSON.parse(su.sms_type);
        //     if (smsType[type] && smsType[type].indexOf(judge) !== -1) {
        //         mobiles.push(su.auth_mobile);
        //     }
        // }
        //
        // if (mobiles.length > 0) {
        //     const sms = new SMS(this.ctx);
        //     const tenderName = await sms.contentChange(this.ctx.tender.data.name);
        //     const projectName = await sms.contentChange(this.ctx.tender.info.deal_info.buildName);
        //     const param = {
        //         project: projectName,
        //         number: tenderName,
        //     };
        //     const postParam = Object.assign(param, data);
        //     sms.aliSend(mobiles, postParam, code);
        // }
    },


    async sendWechat(userId, type, judge, template, data = {}) {
        const wechats = [];
        if (!userId || (userId instanceof Array && userId.length === 0)) return;
        const wxUser = await this.ctx.service.projectAccount.getAllDataByCondition({ where: { id: userId } });
        for (const user of wxUser) {
            if (!user.wx_openid || user.wx_openid === '') continue;
            if (!user.wx_type || user.wx_type === '') continue;

            const wxType = JSON.parse(user.wx_type);
            if (wxType[type] && wxType[type].indexOf(judge) !== -1) {
                wechats.push(user.wx_openid);
            }
        }

        if (wechats.length > 0) {
            const wx = new WX(this.ctx);
            const tenderName = await wx.contentChange(this.ctx.tender.data.name);
            const projectName = await wx.contentChange(this.ctx.tender.info.deal_info.buildName);
            const param = {
                projectName,
                tenderName,
            };
            const postParam = Object.assign(param, data);
            wx.Send(wechats, template, postParam);
        }
    },

    /**
     *
     * @param setting
     * @param data
     * @return {{} & any & {"!ref": string} & {"!cols"}}
     */
    simpleXlsxSheetData(setting, data) {
        const headerStyle = {
            font: { sz: 10, bold: true },
            alignment: { horizontal: 'center' },
        };
        const sHeader = setting.header
            .map((v, i) => Object.assign({}, { v, s: headerStyle, position: String.fromCharCode(65 + i) + 1 }))
            .reduce((prev, next) => Object.assign({}, prev, { [next.position]: { v: next.v, s: next.s } }), {});
        const sData = data
            .map((v, i) => v.map((k, j) => Object.assign({}, {
                v: k ? k : '',
                s: { font: { sz: 10 }, alignment: { horizontal: setting.hAlign[j] } },
                position: String.fromCharCode(65 + j) + (i + 2) })))
            .reduce((prev, next) => prev.concat(next))
            .reduce((prev, next) => Object.assign({}, prev, { [next.position]: { v: next.v, s: next.s } }), {});
        const output = Object.assign({}, sHeader, sData);
        const outputPos = Object.keys(output);
        const result = Object.assign({}, output,
            { '!ref': outputPos[0] + ':' + outputPos[outputPos.length - 1] },
            { '!cols': setting.width.map(w => Object.assign({}, { wpx: w })) });
        return result;
    },

    log(error) {
        if (error.stack) {
            this.ctx.logger.error(error);
        } else {
            this.ctx.getLogger('fail').info(JSON.stringify({
                error,
                project: this.ctx.session.sessionProject,
                user: this.ctx.session.sessionUser,
                body: this.ctx.session.body,
            }));
        }
    },

    /**
     * 添加debug信息
     * 在debug模式下，debug信息将传输到浏览器并打印
     *
     * @param {String}key
     * @param {*}data
     */
    addDebugInfo(key, ...data) {
        if (!this.ctx.debugInfo) {
            this.ctx.debugInfo = { key: {}, other: [] };
        }
        if (key) {
            this.ctx.debugInfo.key[key] = data;
        } else {
            this.ctx.debugInfo.other.push(data);
        }
    },

    /**
     * 深拷贝
     * @param obj
     * @return {*}
     */
    clone(obj) {
        if (obj === null) return null;
        const o = obj instanceof Array ? [] : {};
        for (const i in obj) {
            o[i] = (obj[i] instanceof Date) ? new Date(obj[i].getTime()) : (typeof obj[i] === 'object' ? this.clone(obj[i]) : obj[i]);
        }
        return o;
    },

    /**
     * 短链接生成
     * @param url
     * @return {*}
     */
    async urlToShort(url) {
        const apiUrl = 'http://scn.ink/api/shorturl';
        const data = {
            url: encodeURI(url),
        };
        const result = await this.sendRequest(apiUrl, data, 'get');
        return result && result.code === 200 && result.url ? result.url : url;
    },

    /**
     * 判断是否wap访问
     * @param request
     * @return {*}
     */
    isWap(request) {
        return request.url.indexOf('/wap/') !== -1;
    },

    checkBillsWithPos(bills, pos, fields) {
        const result = {
            error: [],
            source: {
                bills: [],
                pos: [],
            },
        };
        for (const b of bills) {
            const pr = _.remove(pos, { lid: b.id });
            const checkData = {},
                calcData = {};
            if (pr && pr.length > 0) {
                for (const field of fields) {
                    checkData[field] = b[field] ? b[field] : 0;
                }
                for (const p of pr) {
                    for (const field of fields) {
                        calcData[field] = this.add(calcData[field], p[field]);
                    }
                }
                if (!_.isMatch(checkData, calcData)) {
                    result.error.push({
                        ledger_id: b.ledger_id,
                        b_code: b.b_code,
                        name: b.name,
                        error: { checkData, calcData },
                    });
                    result.source.bills.push(b);
                    for (const p of pr) {
                        result.source.pos.push(p);
                    }
                }
            }
        }
        return result;
    },

    checkBillsTp(bills, field, decimal) {
        const result = {
            error: [],
            source: {
                bills: [],
                pos: [],
            },
        };
        for (const b of bills) {
            if (!b.check_calc) continue;

            const checkData = {}, calcData = {};
            for (const f of field) {
                checkData[f.tp] = b[f.tp] || 0;
                calcData[f.tp] = this.mul(b.unit_price, b[f.qty], decimal.tp) || 0;
            }
            if (!this._.isMatch(checkData, calcData)) {
                result.error.push({
                    ledger_id: b.ledger_id,
                    b_code: b.b_code,
                    name: b.name,
                    error: { checkData, calcData },
                });
                result.source.bills.push(b);
            }
        }
        return result;
    },

    check18MainCode(code) {
        return /^([0-9]([0-9][0-9])*)?(GD[0-9]{3}([0-9][0-9])*)?$/.test(code);
    },
    check18SubCode(code) {
        return /^(GD)?G?[A-Z]{2}[A-Z]{0,2}([0-9]{2})+$/.test(code);
    },

    /**
     * 判断是否是移动端访问
     * @param request
     * @return {*}
     */
    isMobile(agent) {
        return agent.match(/(iphone|ipod|android)/i);
    },

    /**
     * 删除文件
     * @param {Array} fileList 文件数组(格式为数据库查询出来的结果集,且文件字段必须为filepath)
     * @return {void}
     */
    async delFiles(fileList) {
        if (fileList.length) {
            for (const att of fileList) {
                if (att.filepath && fs.existsSync(path.join(this.app.baseDir, att.filepath))) {
                    await fs.unlinkSync(path.join(this.app.baseDir, att.filepath));
                }
            }
        }
    },

    /**
     * 匹配图片、pdf(用于预览)
     * @param {String} ext 后缀名
     * @return {Boolean} 匹配结果
     */
    canPreview(ext) {
        const reg = /(.png)|(.gif)|(.txt)|(.jpg)|(.jpeg)|(.pdf)/;
        return reg.test(ext);
    },

    /**
     * 查找数组中某个字符的个数
     * @param {Array} array 数组
     * @param {string} val 字符串
     * @return {Boolean} 匹配结果
     */
    arrayCount(array, val) {
        const counts = (arr, value) => arr.reduce((a, v) => { return value.indexOf(v) !== -1 ? a + 1 : a + 0; }, 0);
        return counts(array, val);
    },

    filterLastestData(data, keyFields) {
        const dataIndex = {};
        for (const d of data) {
            let key = 'd';
            for (const kf of keyFields) {
                key = key + '.' + (d[kf] || '');
            }

            const di = dataIndex[key];
            if (di) {
                if ((di.times * timesLen + di.order) < (d.times * timesLen + d.order)) dataIndex[key] = d;
            } else {
                dataIndex[key] = d;
            }
        }
        const result = [];
        for (const prop in dataIndex) {
            result.push(dataIndex[prop]);
        }
        return result;
    },

    calcExpr(expr) {
        const validExpr = expr.replace('=', '').replace('%', '/100');
        return math.eval(validExpr);
    },

    /**
     * 创建登录日志
     * @return {Boolean} 日志是否创建成功
     * @param {Number} type - 登录类型
     * @param {Number} status - 是否显示记录
     */
    async getUserIPMsg() {
        const { ctx } = this;
        const ip = ctx.request.ip ? ctx.request.ip : '';
        const ipInfo = await this.getIpInfoFromApi(ip);
        const parser = new UAParser(ctx.header['user-agent']);
        const osInfo = parser.getOS();
        const cpuInfo = parser.getCPU();
        const browserInfo = parser.getBrowser();
        const ipMsg = {
            os: `${osInfo.name} ${osInfo.version} ${cpuInfo.architecture}`,
            browser: `${browserInfo.name} ${browserInfo.version}`,
            ip,
            address: ipInfo,
        };
        return ipMsg;
    },

    /**
     * 根据ip请求获取详细地址
     * @param {String} a_ip - ip地址
     * @return {String} 详细地址
     */
    async getIpInfoFromApi(a_ip = '') {
        if (!a_ip) return '';
        if (a_ip === '127.0.0.1' || a_ip === '::1' || a_ip.indexOf('192.168') !== -1) return '服务器本机访问';
        const { ip = '', region = '', city = '', isp = '' } = await this.sendIpRequest(a_ip);
        let address = '';
        region && (address += region + '省');
        city && (address += city + '市 ');
        isp && (address += isp + ' ');
        ip && (address += `(${ip})`);
        return address;
    },

    /**
     * 发送请求获取详细地址
     * @param {String} ip - ip地址
     * @return {Object} the result of request
     * @private
     */
    async sendIpRequest(ip) {
        return new Promise(resolve => {
            this.ctx.curl(`https://api01.aliyun.venuscn.com/ip?ip=${ip}`, {
                dateType: 'json',
                encoding: 'utf8',
                timeout: 2000,
                headers: {
                    Authorization: 'APPCODE 85c64bffe70445c4af9df7ae31c7bfcc',
                },
            }).then(({ status, data }) => {
                if (status === 200) {
                    const result = JSON.parse(data.toString()).data;
                    if (!result.ip) {
                        resolve({});
                    } else {
                        resolve(result);
                    }
                } else {
                    resolve({});
                }
            }).catch(() => {
                resolve({});
            });
        });
    },
};