mirror of
https://github.com/rzmk/learnhouse.git
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426 lines
No EOL
16 KiB
TypeScript
426 lines
No EOL
16 KiB
TypeScript
'use client';
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import React, { useEffect, useState, useRef } from 'react';
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import { useLHSession } from '@components/Contexts/LHSessionContext';
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import { getUserCertificates } from '@services/courses/certifications';
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import CertificatePreview from '@components/Dashboard/Pages/Course/EditCourseCertification/CertificatePreview';
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import { ArrowLeft, Download } from 'lucide-react';
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import Link from 'next/link';
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import { getUriWithOrg } from '@services/config/config';
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import html2canvas from 'html2canvas';
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import jsPDF from 'jspdf';
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import QRCode from 'qrcode';
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interface CertificatePageProps {
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orgslug: string;
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courseid: string;
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qrCodeLink: string;
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}
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const CertificatePage: React.FC<CertificatePageProps> = ({ orgslug, courseid, qrCodeLink }) => {
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const session = useLHSession() as any;
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const [userCertificate, setUserCertificate] = useState<any>(null);
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const [isLoading, setIsLoading] = useState(true);
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const [error, setError] = useState<string | null>(null);
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// Fetch user certificate
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useEffect(() => {
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const fetchCertificate = async () => {
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if (!session?.data?.tokens?.access_token) {
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setError('Authentication required to view certificate');
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setIsLoading(false);
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return;
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}
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try {
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const cleanCourseId = courseid.replace('course_', '');
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const result = await getUserCertificates(
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`course_${cleanCourseId}`,
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session.data.tokens.access_token
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);
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if (result.success && result.data && result.data.length > 0) {
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setUserCertificate(result.data[0]);
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} else {
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setError('No certificate found for this course');
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}
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} catch (error) {
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console.error('Error fetching certificate:', error);
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setError('Failed to load certificate. Please try again later.');
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} finally {
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setIsLoading(false);
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}
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};
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fetchCertificate();
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}, [courseid, session?.data?.tokens?.access_token]);
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// Generate PDF using canvas
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const downloadCertificate = async () => {
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if (!userCertificate) return;
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try {
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// Create a temporary div for the certificate
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const certificateDiv = document.createElement('div');
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certificateDiv.style.position = 'absolute';
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certificateDiv.style.left = '-9999px';
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certificateDiv.style.top = '0';
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certificateDiv.style.width = '800px';
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certificateDiv.style.height = '600px';
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certificateDiv.style.background = 'white';
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certificateDiv.style.padding = '40px';
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certificateDiv.style.fontFamily = 'Arial, sans-serif';
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certificateDiv.style.textAlign = 'center';
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certificateDiv.style.display = 'flex';
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certificateDiv.style.flexDirection = 'column';
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certificateDiv.style.justifyContent = 'center';
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certificateDiv.style.alignItems = 'center';
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certificateDiv.style.position = 'relative';
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certificateDiv.style.overflow = 'hidden';
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// Get theme colors based on pattern
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const getPatternTheme = (pattern: string) => {
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switch (pattern) {
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case 'royal':
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return { primary: '#b45309', secondary: '#d97706', icon: '#d97706' };
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case 'tech':
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return { primary: '#0e7490', secondary: '#0891b2', icon: '#0891b2' };
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case 'nature':
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return { primary: '#15803d', secondary: '#16a34a', icon: '#16a34a' };
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case 'geometric':
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return { primary: '#7c3aed', secondary: '#9333ea', icon: '#9333ea' };
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case 'vintage':
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return { primary: '#c2410c', secondary: '#ea580c', icon: '#ea580c' };
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case 'waves':
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return { primary: '#1d4ed8', secondary: '#2563eb', icon: '#2563eb' };
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case 'minimal':
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return { primary: '#374151', secondary: '#4b5563', icon: '#4b5563' };
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case 'professional':
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return { primary: '#334155', secondary: '#475569', icon: '#475569' };
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case 'academic':
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return { primary: '#3730a3', secondary: '#4338ca', icon: '#4338ca' };
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case 'modern':
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return { primary: '#1d4ed8', secondary: '#2563eb', icon: '#2563eb' };
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default:
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return { primary: '#374151', secondary: '#4b5563', icon: '#4b5563' };
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}
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};
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const theme = getPatternTheme(userCertificate.certification.config.certificate_pattern);
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const certificateId = userCertificate.certificate_user.user_certification_uuid;
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const qrCodeData = qrCodeLink ;
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// Generate QR code
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const qrCodeDataUrl = await QRCode.toDataURL(qrCodeData, {
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width: 120,
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margin: 2,
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color: {
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dark: '#000000',
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light: '#FFFFFF'
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},
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errorCorrectionLevel: 'M',
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type: 'image/png'
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});
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// Create certificate content
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certificateDiv.innerHTML = `
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<div style="
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position: absolute;
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top: 20px;
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left: 20px;
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font-size: 12px;
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color: ${theme.secondary};
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font-weight: 500;
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">ID: ${certificateId}</div>
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<div style="
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position: absolute;
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top: 20px;
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right: 20px;
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width: 80px;
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height: 80px;
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border: 2px solid ${theme.secondary};
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border-radius: 8px;
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background: white;
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display: flex;
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align-items: center;
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justify-content: center;
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">
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<img src="${qrCodeDataUrl}" alt="QR Code" style="width: 100%; height: 100%; object-fit: contain;" />
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</div>
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<div style="
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display: flex;
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align-items: center;
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justify-content: center;
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gap: 8px;
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margin-bottom: 30px;
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font-size: 14px;
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color: ${theme.secondary};
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font-weight: 500;
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text-transform: uppercase;
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letter-spacing: 1px;
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">
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<div style="width: 24px; height: 1px; background: linear-gradient(90deg, transparent, ${theme.secondary}, transparent);"></div>
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Certificate
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<div style="width: 24px; height: 1px; background: linear-gradient(90deg, transparent, ${theme.secondary}, transparent);"></div>
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</div>
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<div style="
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width: 80px;
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height: 80px;
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background: linear-gradient(135deg, ${theme.icon}20 0%, ${theme.icon}40 100%);
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border-radius: 50%;
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display: flex;
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align-items: center;
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justify-content: center;
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margin: 0 auto 30px;
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font-size: 40px;
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line-height: 1;
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">🏆</div>
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<div style="
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font-size: 32px;
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font-weight: bold;
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color: ${theme.primary};
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margin-bottom: 20px;
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line-height: 1.2;
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max-width: 600px;
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">${userCertificate.certification.config.certification_name}</div>
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<div style="
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font-size: 18px;
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color: #6b7280;
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margin-bottom: 30px;
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line-height: 1.5;
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max-width: 500px;
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">${userCertificate.certification.config.certification_description || 'This is to certify that the course has been successfully completed.'}</div>
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<div style="
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display: flex;
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align-items: center;
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justify-content: center;
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gap: 4px;
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margin: 20px 0;
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">
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<div style="width: 8px; height: 1px; background: ${theme.secondary}; opacity: 0.5;"></div>
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<div style="width: 4px; height: 4px; background: ${theme.primary}; border-radius: 50%; opacity: 0.6;"></div>
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<div style="width: 8px; height: 1px; background: ${theme.secondary}; opacity: 0.5;"></div>
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</div>
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<div style="
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display: inline-flex;
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align-items: center;
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gap: 8px;
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font-size: 16px;
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color: ${theme.primary};
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background: ${theme.icon}10;
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padding: 12px 24px;
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border-radius: 20px;
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border: 1px solid ${theme.icon}20;
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font-weight: 500;
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margin-bottom: 30px;
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white-space: nowrap;
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">
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<span style="font-weight: bold; font-size: 18px;">✓</span>
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<span>${userCertificate.certification.config.certification_type === 'completion' ? 'Course Completion' :
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userCertificate.certification.config.certification_type === 'achievement' ? 'Achievement Based' :
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userCertificate.certification.config.certification_type === 'assessment' ? 'Assessment Based' :
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userCertificate.certification.config.certification_type === 'participation' ? 'Participation' :
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userCertificate.certification.config.certification_type === 'mastery' ? 'Skill Mastery' :
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userCertificate.certification.config.certification_type === 'professional' ? 'Professional Development' :
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userCertificate.certification.config.certification_type === 'continuing' ? 'Continuing Education' :
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userCertificate.certification.config.certification_type === 'workshop' ? 'Workshop Attendance' :
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userCertificate.certification.config.certification_type === 'specialization' ? 'Specialization' : 'Course Completion'}</span>
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</div>
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<div style="
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margin-top: 30px;
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padding: 24px;
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background: #f8fafc;
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border-radius: 8px;
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border: 1px solid #e2e8f0;
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max-width: 400px;
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">
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<div style="margin: 8px 0; font-size: 14px; color: #374151;">
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<strong style="color: ${theme.primary};">Certificate ID:</strong> ${certificateId}
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</div>
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<div style="margin: 8px 0; font-size: 14px; color: #374151;">
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<strong style="color: ${theme.primary};">Awarded:</strong> ${new Date(userCertificate.certificate_user.created_at).toLocaleDateString('en-US', {
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year: 'numeric',
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month: 'long',
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day: 'numeric'
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})}
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</div>
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${userCertificate.certification.config.certificate_instructor ?
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`<div style="margin: 8px 0; font-size: 14px; color: #374151;">
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<strong style="color: ${theme.primary};">Instructor:</strong> ${userCertificate.certification.config.certificate_instructor}
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</div>` : ''
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}
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</div>
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<div style="
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margin-top: 20px;
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font-size: 12px;
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color: #6b7280;
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">
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This certificate can be verified at ${qrCodeData.replace('https://', '').replace('http://', '')}
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</div>
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`;
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// Add to document temporarily
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document.body.appendChild(certificateDiv);
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// Convert to canvas
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const canvas = await html2canvas(certificateDiv, {
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width: 800,
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height: 600,
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scale: 2, // Higher resolution
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useCORS: true,
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allowTaint: true,
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backgroundColor: '#ffffff'
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});
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// Remove temporary div
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document.body.removeChild(certificateDiv);
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// Create PDF
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const imgData = canvas.toDataURL('image/png');
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const pdf = new jsPDF('landscape', 'mm', 'a4');
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// Calculate dimensions to center the certificate
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const pdfWidth = pdf.internal.pageSize.getWidth();
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const pdfHeight = pdf.internal.pageSize.getHeight();
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const imgWidth = 280; // mm
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const imgHeight = 210; // mm
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// Center the image
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const x = (pdfWidth - imgWidth) / 2;
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const y = (pdfHeight - imgHeight) / 2;
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pdf.addImage(imgData, 'PNG', x, y, imgWidth, imgHeight);
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// Save the PDF
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const fileName = `${userCertificate.certification.config.certification_name.replace(/[^a-zA-Z0-9]/g, '_')}_Certificate.pdf`;
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pdf.save(fileName);
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} catch (error) {
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console.error('Error generating PDF:', error);
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alert('Failed to generate PDF. Please try again.');
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}
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};
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if (isLoading) {
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return (
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<div className="min-h-screen flex items-center justify-center">
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<div className="text-center">
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<div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-600 mx-auto mb-4"></div>
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<p className="text-gray-600">Loading certificate...</p>
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</div>
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</div>
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);
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}
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if (error) {
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return (
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<div className="min-h-screen flex items-center justify-center">
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<div className="text-center max-w-md mx-auto p-6">
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<div className="bg-red-50 border border-red-200 rounded-lg p-6">
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<h2 className="text-xl font-semibold text-red-800 mb-2">Certificate Not Available</h2>
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<p className="text-red-600 mb-4">{error}</p>
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<Link
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href={getUriWithOrg(orgslug, '') + `/course/${courseid}`}
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className="inline-flex items-center space-x-2 bg-blue-600 text-white px-6 py-3 rounded-full hover:bg-blue-700 transition duration-200"
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>
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<ArrowLeft className="w-5 h-5" />
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<span>Back to Course</span>
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</Link>
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</div>
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</div>
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</div>
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);
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}
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if (!userCertificate) {
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return (
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<div className="min-h-screen flex items-center justify-center">
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<div className="text-center max-w-md mx-auto p-6">
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<div className="bg-yellow-50 border border-yellow-200 rounded-lg p-6">
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<h2 className="text-xl font-semibold text-yellow-800 mb-2">No Certificate Found</h2>
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<p className="text-yellow-600 mb-4">
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No certificate is available for this course. Please contact your instructor for more information.
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</p>
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<Link
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href={getUriWithOrg(orgslug, '') + `/course/${courseid}`}
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className="inline-flex items-center space-x-2 bg-blue-600 text-white px-6 py-3 rounded-full hover:bg-blue-700 transition duration-200"
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>
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<ArrowLeft className="w-5 h-5" />
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<span>Back to Course</span>
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</Link>
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</div>
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</div>
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</div>
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);
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}
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return (
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<div className="min-h-screen bg-gray-50 py-8">
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<div className="max-w-4xl mx-auto px-4">
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{/* Header */}
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<div className="flex items-center justify-between mb-8">
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<Link
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href={getUriWithOrg(orgslug, '') + `/course/${courseid}`}
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className="inline-flex items-center space-x-2 text-gray-600 hover:text-gray-900 transition duration-200"
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>
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<ArrowLeft className="w-5 h-5" />
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<span>Back to Course</span>
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</Link>
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<div className="flex items-center space-x-4">
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<button
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onClick={downloadCertificate}
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className="inline-flex items-center space-x-2 bg-green-600 text-white px-6 py-3 rounded-full hover:bg-green-700 transition duration-200"
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>
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<Download className="w-5 h-5" />
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<span>Download PDF</span>
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</button>
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</div>
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</div>
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{/* Certificate Display */}
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<div className="bg-white rounded-2xl shadow-lg p-8">
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<div className="max-w-2xl mx-auto">
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<CertificatePreview
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certificationName={userCertificate.certification.config.certification_name}
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certificationDescription={userCertificate.certification.config.certification_description}
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certificationType={userCertificate.certification.config.certification_type}
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certificatePattern={userCertificate.certification.config.certificate_pattern}
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certificateInstructor={userCertificate.certification.config.certificate_instructor}
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certificateId={userCertificate.certificate_user.user_certification_uuid}
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awardedDate={new Date(userCertificate.certificate_user.created_at).toLocaleDateString('en-US', {
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year: 'numeric',
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month: 'long',
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day: 'numeric'
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})}
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qrCodeLink={qrCodeLink}
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/>
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</div>
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</div>
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{/* Instructions */}
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<div className="mt-8 text-center text-gray-600">
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<p className="mb-2">
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Click "Download PDF" to generate and download a high-quality certificate PDF.
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</p>
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<p className="text-sm">
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The PDF includes a scannable QR code for certificate verification.
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</p>
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</div>
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</div>
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</div>
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);
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};
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export default CertificatePage;
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