Custom CSV parser for fixing parsing issues and manual

src/components/SingleFileUpload.jsx

@@ -1,52 +1,43 @@
 import React, { useState, useEffect } from "react"
-import csv from "csvtojson"
 import PropTypes from "prop-types"
 
-export var fileContent = "{}";
-var uploadFailed = false;
+export var fileContent = "{}"
+var uploadFailed = false
 
 function SingleFileUpload({ onFileUploaded }) {
   const [, setFile] = useState()
-  const [fileUploaded, setFileUploaded] = useState(false);
+  const [fileUploaded, setFileUploaded] = useState(false)
 
   useEffect(() => {
     if (fileUploaded) {
       onFileUploaded()
     }
     if (uploadFailed && !fileUploaded) {
-      onFileUploaded();
+      onFileUploaded()
     }
   }, [fileUploaded])
 
   // Reads file.
-  var readCallback = function (content) {
-    csv()
-      .fromString(content)
-      .preRawData((csvRawData) => {
-
+  var readCallback = function (csvRawData) {
     if (!checkCSVValidity(csvRawData)) {
-          alert("Invalid CSV File");
-          uploadFailed = true;
-          setFileUploaded(false);
-          fileContent = {};
-          return "{}";
+      alert("Invalid CSV File")
+      uploadFailed = true
+      setFileUploaded(false)
+      fileContent = {}
+      return "{}"
     }
 
-        csvRawData = csvRawData.replaceAll("Start Date", "Start_Date");
-        csvRawData = csvRawData.replaceAll("Start Time", "Start_Time");
-        csvRawData = csvRawData.replaceAll("End Date", "End_Date");
-        csvRawData = csvRawData.replaceAll("End Time", "End_Time");
-        csvRawData = csvRawData.replaceAll("Duration (decimal)", "Duration_Decimal");
-        uploadFailed = false;
+    csvRawData = csvRawData.replaceAll("Start Date", "Start_Date")
+    csvRawData = csvRawData.replaceAll("Start Time", "Start_Time")
+    csvRawData = csvRawData.replaceAll("End Date", "End_Date")
+    csvRawData = csvRawData.replaceAll("End Time", "End_Time")
+    csvRawData = csvRawData.replaceAll("Duration (decimal)", "Duration_Decimal")
+    uploadFailed = false
 
-        return csvRawData
-      })
-      .then((csvRow) => {
     if (!uploadFailed) {
-          fileContent = csvRow;
-          setFileUploaded(true);
+      fileContent = csvJSON(csvRawData)
+      setFileUploaded(true)
     }
-      })
   }
 
   function handleChange(event) {
@@ -56,11 +47,11 @@ function SingleFileUpload({ onFileUploaded }) {
     const reader = new FileReader()
     reader.readAsText(changedFile)
     reader.onload = function (evt) {
-      var uploadedFile = document.getElementById('fileInput').files[0];
+      var uploadedFile = document.getElementById("fileInput").files[0]
       if (uploadedFile.type != "application/vnd.ms-excel") {
-        alert("Wrong file type");
-        fileContent = "{}";
-        return;
+        alert("Wrong file type")
+        fileContent = "{}"
+        return
       }
       readCallback(evt.target.result)
     }
@@ -76,19 +67,58 @@ function SingleFileUpload({ onFileUploaded }) {
   )
 }
 
+function csvJSON(csvText) {
+  let lines = []
+  const linesArray = csvText.split("\n")
+  // for trimming and deleting extra space
+  linesArray.forEach((e) => {
+    const row = e.replace(/[\s]+[,]+|[,]+[\s]+/g, ",").trim()
+    lines.push(row)
+  })
+  // for removing empty record
+  lines.splice(lines.length - 1, 1)
+  const result = []
+  const headers = lines[0].split(",")
+
+  for (let i = 1; i < lines.length; i++) {
+    const obj = {}
+    const currentline = lines[i].split(",")
+
+    for (let j = 0; j < headers.length; j++) {
+      obj[headers[j]] = currentline[j]
+    }
+    result.push(obj)
+  }
+
+  var resultString = JSON.stringify(result)
+  resultString = resultString.replaceAll('\\"', "")
+  return JSON.parse(resultString)
+}
+
 function checkCSVValidity(rawCSV) {
-  const containsProjectKey = rawCSV.includes("\"Project\"");
-  const containsDescriptionKey = rawCSV.includes("\"Description\"");
-  const containsTaskKey = rawCSV.includes("\"Task\"");
-  const containsUserKey = rawCSV.includes("\"User\"");
-  const containsStartDateKey = rawCSV.includes("\"Start Date\"");
-  const containsStartTimeKey = rawCSV.includes("\"Start Time\"");
-  const containsEndDateKey = rawCSV.includes("\"End Date\"");
-  const containsEndTimeKey = rawCSV.includes("\"End Time\"");
-  const containsDurationHourKey = rawCSV.includes("\"Duration (h)\"");
-  const containsDurationDecimalKey = rawCSV.includes("\"Duration (decimal)\"");
-
-  return containsProjectKey && containsDescriptionKey && containsTaskKey && containsUserKey && containsStartDateKey && containsStartTimeKey && containsEndDateKey && containsEndTimeKey && containsDurationHourKey && containsDurationDecimalKey;
+  const containsProjectKey = rawCSV.includes('"Project"')
+  const containsDescriptionKey = rawCSV.includes('"Description"')
+  const containsTaskKey = rawCSV.includes('"Task"')
+  const containsUserKey = rawCSV.includes('"User"')
+  const containsStartDateKey = rawCSV.includes('"Start Date"')
+  const containsStartTimeKey = rawCSV.includes('"Start Time"')
+  const containsEndDateKey = rawCSV.includes('"End Date"')
+  const containsEndTimeKey = rawCSV.includes('"End Time"')
+  const containsDurationHourKey = rawCSV.includes('"Duration (h)"')
+  const containsDurationDecimalKey = rawCSV.includes('"Duration (decimal)"')
+
+  return (
+    containsProjectKey &&
+    containsDescriptionKey &&
+    containsTaskKey &&
+    containsUserKey &&
+    containsStartDateKey &&
+    containsStartTimeKey &&
+    containsEndDateKey &&
+    containsEndTimeKey &&
+    containsDurationHourKey &&
+    containsDurationDecimalKey
+  )
 }
 
 SingleFileUpload.propTypes = {

src/components/TimelineAreaChart.jsx

@@ -4,8 +4,8 @@ import HighchartsReact from "highcharts-react-official"
 import { fileContent } from "./SingleFileUpload"
 
 // Date, Map
-var projectDataMap = new Map();
-var allSeriesEnabled = true;
+var projectDataMap = new Map()
+var allSeriesEnabled = true
 
 export default function AreaChart() {
   const chartComponent = useRef(null)

src/index.js

@@ -11,9 +11,9 @@ export default function App() {
 
   const handleUploadedFile = function () {
     if (Array.isArray(fileContent)) {
-      setFileUploaded(true);
+      setFileUploaded(true)
     } else {
-      setFileUploaded(false);
+      setFileUploaded(false)
     }
   }
 
@@ -23,6 +23,13 @@ export default function App() {
       <Tabs initialValue="1">
         <Tabs.Item label="Upload File" value="1">
           <SingleFileUploader onFileUploaded={handleUploadedFile} />
+          <br />
+          <hr />
+          <h3>How to upload a file</h3>
+          <p>
+            Go to Clockify → Reports → Summary → Time Report (Detailed) → Export (As
+            a CSV file)
+          </p>
         </Tabs.Item>
         <Tabs.Item label="Project timeline" value="2" disabled={!fileUploaded}>
           <TimelineAreaChart />