`).join('');
} else {
suggestionsPane.innerHTML = `
No specific style suggestions. The writing is clear and effective!
`;
}
analysisContent.style.display = 'block';
setActiveTab(0);
};
const setActiveTab = (index) => {
tabButtons.forEach((btn, i) => btn.classList.toggle('active', i === index));
tabPanes.forEach((pane, i) => pane.classList.toggle('active', i === index));
};
const showError = (message) => {
apiErrorMessage.textContent = message;
apiErrorMessage.style.display = 'block';
resultsContainer.style.display = 'none';
};
const hideError = () => {
apiErrorMessage.style.display = 'none';
};
// --- PDF Generation ---
async function generatePdf() {
const { text, overallAnalysis, styleSuggestions } = lastResult;
if (!text) return;
const suggestionsHtml = styleSuggestions.length > 0 ? styleSuggestions.map(item => `
"${item.snippet}"
Suggestion: ${item.suggestion}
`).join('') : `
No specific style suggestions were provided.
`;
pdfContentArea.innerHTML = `
Writing Tone & Style Report
Overall Analysis
${overallAnalysis}
Suggestions for Improvement
${suggestionsHtml}
`;
pdfContentArea.style.display = 'block';
pdfContentArea.style.position = 'absolute';
pdfContentArea.style.left = '-9999px';
pdfContentArea.style.width = '800px';
try {
const canvas = await html2canvas(pdfContentArea, { scale: 2 });
const imgData = canvas.toDataURL('image/png');
const { jsPDF } = window.jspdf;
const pdf = new jsPDF({ orientation: 'portrait', unit: 'px', format: 'a4' });
const pdfWidth = pdf.internal.pageSize.getWidth();
const imgHeight = canvas.height * pdfWidth / canvas.width;
pdf.addImage(imgData, 'PNG', 0, 0, pdfWidth, imgHeight);
pdf.save(`Writing-Analysis-Report.pdf`);
} catch (error) {
console.error("PDF generation failed:", error);
alert("Could not generate PDF.");
} finally {
pdfContentArea.style.display = 'none';
}
}
// --- Event Listeners ---
analyzeBtn.addEventListener('click', getAnalysis);
tabButtons.forEach((btn, i) => btn.addEventListener('click', () => setActiveTab(i)));
downloadPdfBtn.addEventListener('click', generatePdf);
// --- Initial State ---
textInput.value = "Each manager should submit his report by Friday. We need to make sure all manpower is allocated efficiently. This is a great opportunity for mankind to advance.";
});
