somewhere

server/controllers/serialsExelController.js

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+const fs = require('fs')
+const { body, validationResult } = require('express-validator')
+const { res404, res500, checkValidations } = require('../plugins/controllersHelperFunctions')
+const { _sr } = require('../plugins/serverResponses')
+const { serialChecker } = require('../plugins/asanServiceSerialChecker')
+const _faSr = _sr.fa
+
+const guaranteeSerialsPath = './static/uploads/serials'
+const productSerialsPath = './static/uploads/serials_products'
+
+/// // router modules
+module.exports.addExel = [
+  [
+    body('type')
+      .notEmpty()
+      .withMessage('choose type')
+      .bail()
+      .custom((value, { rew }) => {
+        const validValues = ['guaranteeSerial', 'orginality']
+        if (!validValues.includes(value)) return Promise.reject(new Error('invalid type'))
+        else return Promise.resolve()
+      })
+  ],
+  checkValidations(validationResult),
+  async (req, res) => {
+    if (!req.files?.file) return res.status(422).json({ validation: { file: { msg: 'فایل را اضافه کنید' } } })
+    if (!req.files?.file.name.split('.').some(item => ['xlsx', 'xltx', 'xlsm', 'xlsb'].includes(item)))
+      return res.status(422).json({ validation: { file: { msg: 'فرمت فایل درست نمیباشد' } } })
+    const file = req.files.file
+    const { type } = req.body
+    try {
+      const path = type === 'guaranteeSerial' ? guaranteeSerialsPath : productSerialsPath
+      const files = await fs.readdirSync(path)
+      for await (const item of files) {
+        if (file.name === item) return res.status(422).json({ validation: { file: { msg: 'نام فایل تکراریست' } } })
+      }
+
+      await file.mv(`${path}/${file.name}`)
+
+      return res.json({ message: _faSr.response.success_save })
+    } catch (err) {
+      return res500(res, err)
+    }
+  }
+]
+
+module.exports.getAllExels = [
+  (req, res) => {
+    const type = req.query?.type
+    if (!type) return res500(res, 'choose type')
+    const validValues = ['guaranteeSerial', 'orginality']
+    if (!validValues.includes(type)) return res500(res, 'choose type')
+    const path = type === 'guaranteeSerial' ? guaranteeSerialsPath : productSerialsPath
+    const downloadAblePath = type === 'guaranteeSerial' ? '/uploads/serials/' : '/uploads/serials_products/'
+    fs.readdir(path, (err, files) => {
+      if (err) return res500(res, err)
+      const filesWithURL = files.map(item => {
+        return { url: downloadAblePath, name: item }
+      })
+      return res.json(filesWithURL)
+    })
+  }
+]
+
+module.exports.removeExel = [
+  (req, res) => {
+    const type = req.query?.type
+    if (!type) return res500(res, 'choose type')
+    const validValues = ['guaranteeSerial', 'orginality']
+    if (!validValues.includes(type)) return res500(res, 'choose type')
+    const path = type === 'guaranteeSerial' ? guaranteeSerialsPath : productSerialsPath
+    fs.unlink(`${path}/${req.params.name}`, err => {
+      if (err) return res404(res, _faSr.not_found.item_id)
+      else return res.json({ message: _faSr.response.success_remove })
+    })
+  }
+]
+
+module.exports.checkSerial = [
+  [
+    body('serial').notEmpty().withMessage('شماره سریال را وارد کنید'),
+
+    body('type')
+      .notEmpty()
+      .withMessage('choose type')
+      .bail()
+      .custom((value, { rew }) => {
+        const validValues = ['guaranteeSerial', 'orginality']
+        if (!validValues.includes(value)) return Promise.reject(new Error('invalid type'))
+        else return Promise.resolve()
+      })
+  ],
+  checkValidations(validationResult),
+  async (req, res) => {
+    try {
+      const { serial, type } = req.body
+      const serialStatus = await serialChecker(serial, type)
+
+      let okMsg
+      if (type === 'guaranteeSerial') okMsg = 'شماره سریال گارانتی معتبر میباشد.'
+      else okMsg = 'شماره سریال کالا معتبر میباشد.'
+
+      let errMsg
+      if (type === 'guaranteeSerial') errMsg = 'شماره سریال گارانتی معتبر نیست.'
+      else errMsg = 'شماره سریال کالا معتبر نیست.'
+
+      if (serialStatus) return res.json({ message: okMsg })
+      else return res404(res, errMsg)
+    } catch (e) {
+      return res500(res, `there is an error here --- ${e}`)
+    }
+  }
+]