bia/common/goods/utils.js

a tool for download git repository

/*
 * @Author: hzxulin@yeah.net 
 * @Date:   2018-11-21 17:44:34 
 * @Last Modified by: hzxulin@yeah.net
 * @Last Modified time: 2018-11-21 22:03:57
 */

const path = require('path')
const xlsx = require('node-xlsx')
const fse = require('fs-extra')
const question = require('./question')

const GOODS_CONFIG = require('../../config/goods.json')

/**
 * 导出excel
 * @param {string} _dist 导出的路径
 */
const exportExcel = (_dist) => {
    return new Promise((resolve, reject) => {
        try {
            const data = GOODS_CONFIG.excel
            let buffer = xlsx.build([{ name: 'goods-tpl', data: data }])
            let dist = path.resolve(_dist, 'goods-tpl.xlsx')
            fse.outputFileSync(dist, buffer)
            resolve(dist)
        } catch (err) {
            reject(err)
        }
    })
}

/**
 * 导入excel，读取excel内容
 * @param {string} file 导入的excel文件名
 */
const importExcel = (file) => {
    return new Promise((resolve, reject) => {
        try {
            let excel = xlsx.parse(file)
            let list = []

            excel.forEach((_v) => {
                let _data = _v.data
                _data.forEach((_y) => {
                    list.push(_y)
                })
            })

            let _itemidIndex = 0
            let _skuidIndex = 0
            let _newObj = {}
            let _newKeyList = []
            let _newList = [['商品id（spuid）', 'E:skuList']]
            
            list.forEach((_v, _i) => {
                if (_i == 0) {
                    _v.forEach((_y, _j) => {
                        if (/^itemid$/i.test(_y)) {
                            _itemidIndex = _j
                        }
                        if (/^skuid$/i.test(_y)) {
                            _skuidIndex = _j
                        }
                    })
                } else {
                    let _key = _v[_itemidIndex]
                    let _value = _v[_skuidIndex]
                    if (_key && _value) {
                        if (_newObj[_key]) {
                            _newObj[_key] = _newObj[_key].concat(_value)
                        } else {
                            _newKeyList.push(_key)
                            _newObj[_key] = [].concat(_value)
                        }
                    }
                }
            })
            _newKeyList.forEach(_v => {
                let _arr = [].concat(_v, _newObj[_v].join(','))
                _newList.push(_arr)
            })
            resolve(_newList)
        } catch (err) {
            reject(err)
        }
    })
}

/**
 * 生成excel
 * @param {array} list 列表信息
 */
const createExcel = (list) => {
    return new Promise((resolve, reject) => {
        try {
            let buffer = xlsx.build([{ name: 'new-goods-tpl', data: list }])
            let dist = path.resolve(process.cwd(), 'new-goods-tpl.xlsx')

            fse.outputFileSync(dist, buffer)
            resolve(dist)
        } catch (err) {
            reject(err)
        }
    })
}

module.exports = {
    exportExcel,
    importExcel,
    createExcel,
}