Code Updated from Premnath018 Repo

Author: praveenraam

AttendanceForm/js/main.js

@@ -0,0 +1,100 @@
+async function GeneratePdf( statement ) {
+  var dateValue = $('#dateValue').val();
+  const [year, month, date1] = dateValue.split("-");
+  var student = $('#m_username').val().trim();
+  var roll = $('#m_rollno').val();
+  var menname = $('#m_mentorname').val();
+  var mencode = $('#m_mentorcode').val();
+  var gen = $("input[name='radio1']:checked").val();
+  var stay = $("input[name='radio2']:checked").val();
+  details = splitString($('#details').val());
+
+  if (!dateValue || !student || !roll || !menname || !mencode || !gen || !stay ) {
+    alert('Please fill in all the fields.');
+    return 0;
+  }
+
+  const existingPdfUrl = '../forms/AttendanceForm.pdf';   
+  const existingPdfBytes =  await fetch(existingPdfUrl).then(res => res.arrayBuffer());
+  const pdfDoc = await PDFLib.PDFDocument.load(existingPdfBytes);
+
+  const pngUrl = '../imgs/checkmark.png'
+  const pngImageBytes = await fetch(pngUrl).then((res) => res.arrayBuffer())
+  const pngImage = await pdfDoc.embedPng(pngImageBytes)
+  const pngDims = pngImage.scale(0.5)
+
+  // Set the page you want to modify
+  const page = pdfDoc.getPages()[0];
+  // Add text to the page
+  const timesnewroman = await pdfDoc.embedFont(PDFLib.StandardFonts.TimesRoman);
+  page.drawText(date1, { x: 403, y: 707, font: timesnewroman, size: 12 });//date
+  page.drawText(month, { x: 434, y: 707, font: timesnewroman, size: 12 });//month
+  page.drawText(year, { x: 460, y: 707, font: timesnewroman, size: 12 });//year
+  page.drawText(student, { x: 160, y: 621, font: timesnewroman, size: 12 });//student_name
+  page.drawText(menname, { x: 158, y: 665, font: timesnewroman, size: 12 });//mentor_name
+  page.drawText(mencode, { x: 374, y: 665, font: timesnewroman, size: 12 });//mentor_code
+  page.drawText('__________________________________________',{x:50,y:544,rotate:PDFLib.degrees(-14),font: timesnewroman, size: 25});
+  page.drawText(roll, { x: 358, y: 621, font: timesnewroman, size: 12 });//roll_number
+
+  page.drawText(details[0], { x: 180, y: 343, font: timesnewroman, size: 12 });//details1(max-70)
+  if (typeof details[1] !== 'undefined') {
+    page.drawText(details[1], { x: 180, y: 326, font: timesnewroman, size: 12 });//details2(max-70)
+  }
+  else{
+    console.error('Text is undefined.');
+  }
+
+  page.drawImage(pngImage, { x: 46,y: 362, width: 15,height: 15,}); // attendance_tick
+  gen == 0 ?   page.drawImage(pngImage, { x: 166,y: 607, width: 15,height: 15,}) : page.drawImage(pngImage, { x: 208,y: 607, width: 15,height: 15,});
+  stay == 0 ?   page.drawImage(pngImage, { x: 380,y: 607, width: 15,height: 15,}) :  page.drawImage(pngImage, { x: 440,y: 607, width: 15,height: 15,});
+  
+
+    // Save modified PDF document
+    const modifiedPdfBytes = await pdfDoc.save();
+
+  // Convert the PDF document to a blob
+  const modifiedPdfBlob = new Blob([modifiedPdfBytes], { type: 'application/pdf' });
+
+//  Create a download link for the modified PDF and click it to download
+  const downloadLink = document.createElement('a');
+  downloadLink.href = URL.createObjectURL(modifiedPdfBlob);
+if (statement == 'download') {
+    downloadLink.download = `Attendance Unblock Form - ${roll}.pdf`;
+    downloadLink.click();
+}
+
+  if (statement == 'print'){
+    const printWindow = window.open('', '_blank');
+    const printDocument = printWindow.document;
+    
+    // Embed the PDF in an <embed> element for printing
+    const embedElement = printDocument.createElement('embed');
+    embedElement.src = downloadLink.href;
+    embedElement.type = 'application/pdf';
+    embedElement.style.width = '100%';
+    embedElement.style.height = '100vh';
+    
+    printDocument.body.appendChild(embedElement);
+    return 1;
+  }
+}
+
+function splitString(input) {
+  const words = input.split(' ');
+  const result = [];
+  let currentLine = '';
+  for (let i = 0; i < words.length; i++) {
+    const word = words[i];
+    if (currentLine.length + word.length <= 90) {
+      currentLine += (currentLine.length === 0 ? '' : ' ') + word;
+    } else {
+      result.push(currentLine);
+      currentLine = word;
+    }
+  }
+  if (currentLine.length > 0) {
+    result.push(currentLine);
+  }
+  return result;
+}
+