${analysis.error}
`;
downloadPdfBtn.classList.add('hidden');
return;
}
// Generate HTML for results
const resultsHTML = `
General Statistics
- Word Count: ${analysis.wordCount}
- Sentence Count: ${analysis.sentenceCount}
- Avg. Words per Sentence: ${analysis.averageWordsPerSentence}
Readability
- Flesch Reading Ease: ${analysis.fleschScore} (Higher is easier)
Sentiment Analysis
- Overall Tone: ${analysis.sentiment.label}
- Positive Words Found: ${analysis.sentiment.positiveWords}
- Negative Words Found: ${analysis.sentiment.negativeWords}
Top 15 Most Frequent Words
| Word | Count |
|---|
${analysis.sortedFrequencies.map(item => `| ${item[0]} | ${item[1]} |
`).join('')}
`;
resultsOutput.innerHTML = resultsHTML;
downloadPdfBtn.classList.remove('hidden');
});
compareBtn.addEventListener('click', () => {
const text1 = compareText1.value;
const text2 = compareText2.value;
const analysis1 = performAnalysis(text1);
const analysis2 = performAnalysis(text2);
comparisonOutput.innerHTML = ''; // Clear previous
if (analysis1.error || analysis2.error) {
comparisonOutput.innerHTML = `
${analysis1.error || ''} ${analysis2.error || ''}
`;
downloadComparisonPdfBtn.classList.add('hidden');
return;
}
// Jaccard similarity
const set1 = new Set(text1.toLowerCase().match(/\b[\w']+\b/g));
const set2 = new Set(text2.toLowerCase().match(/\b[\w']+\b/g));
const intersection = new Set([...set1].filter(x => set2.has(x)));
const union = new Set([...set1, ...set2]);
const jaccardIndex = (intersection.size / union.size).toFixed(3);
const comparisonHTML = `
Vocabulary Similarity
Jaccard Index: ${jaccardIndex}
Measures vocabulary overlap. 1 is identical, 0 is no overlap.
Text 1 Analysis
- Word Count: ${analysis1.wordCount}
- Sentence Count: ${analysis1.sentenceCount}
- Flesch Score: ${analysis1.fleschScore}
- Sentiment: ${analysis1.sentiment.label}
Text 2 Analysis
- Word Count: ${analysis2.wordCount}
- Sentence Count: ${analysis2.sentenceCount}
- Flesch Score: ${analysis2.fleschScore}
- Sentiment: ${analysis2.sentiment.label}
`;
comparisonOutput.innerHTML = comparisonHTML;
downloadComparisonPdfBtn.classList.remove('hidden');
});
// --- PDF DOWNLOAD LOGIC ---
const generatePdf = (title, contentElementId, tableElementIds) => {
const { jsPDF } = window.jspdf;
const doc = new jsPDF();
let finalY = 20; // Y position for the next element
doc.setFontSize(18);
doc.text(title, 14, finalY);
finalY += 10;
const contentElement = document.getElementById(contentElementId);
if (!contentElement) return;
const sections = contentElement.querySelectorAll('h3');
sections.forEach(header => {
doc.setFontSize(14);
doc.setFont(undefined, 'bold');
doc.text(header.innerText, 14, finalY);
finalY += 6;
const list = header.nextElementSibling;
if (list && list.tagName === 'UL') {
const items = list.querySelectorAll('li');
doc.setFontSize(11);
doc.setFont(undefined, 'normal');
items.forEach(item => {
// Clean up the text for PDF
const itemText = item.innerText.replace(/\s+/g, ' ').trim();
doc.text(itemText, 18, finalY);
finalY += 6;
});
finalY += 4; // Extra space after a list
} else if (list && list.tagName === 'TABLE') {
const tableId = list.id;
if (tableId && tableElementIds.includes(`#${tableId}`)) {
doc.autoTable({
html: `#${tableId}`,
startY: finalY,
theme: 'grid',
headStyles: { fillColor: [75, 85, 99] }, // slate-600
styles: { cellPadding: 2, fontSize: 10 },
});
finalY = doc.lastAutoTable.finalY + 10;
}
} else if (list && list.classList.contains('text-center')) { // For Jaccard Index
doc.setFontSize(11);
doc.setFont(undefined, 'normal');
list.querySelectorAll('p').forEach(p => {
doc.text(p.innerText, 14, finalY);
finalY += 6;
});
finalY += 4;
}
});
// For comparison columns
if (contentElementId === 'comparison-content-for-pdf') {
const col1 = document.getElementById('comp-col-1');
const col2 = document.getElementById('comp-col-2');
if(col1 && col2) {
doc.autoTable({
body: [
[
{content: col1.innerText, styles: {halign: 'left'}},
{content: col2.innerText, styles: {halign: 'left'}}
]
],
startY: finalY,
theme: 'plain'
});
}
}
doc.save(`${title.toLowerCase().replace(/\s/g, '-')}.pdf`);
};
downloadPdfBtn.addEventListener('click', () => {
generatePdf('Text Analysis Report', 'analysis-content-for-pdf', ['#freq-table']);
});
downloadComparisonPdfBtn.addEventListener('click', () => {
generatePdf('Text Comparison Report', 'comparison-content-for-pdf', []);
});
// Initialize first tab
updateNavButtons();
});
