${result.message}

`; }; // --- Event Handlers --- generateExplanationBtn.addEventListener('click', () => { saveConfig(); // Ensure latest policy rules are used generateExplanation(); switchTab('result'); }); // --- Tab & Navigation Logic --- function switchTab(targetTabId) { if(currentTab === 'config') saveConfig(); currentTab = targetTabId; const currentIndex = TABS_ORDER.indexOf(currentTab); tabs.forEach(tab => tab.classList.toggle('active', tab.dataset.tab === currentTab)); tabContents.forEach(content => content.classList.toggle('active', content.id === currentTab)); updateNavButtons(currentIndex); } function updateNavButtons(currentIndex) { prevBtn.style.display = (currentIndex === 0) ? 'none' : 'inline-flex'; nextBtn.style.display = (currentIndex === TABS_ORDER.length - 1) ? 'none' : 'inline-flex'; pdfButtonContainer.style.display = (currentTab === 'result') ? 'block' : 'none'; } tabs.forEach(tab => tab.addEventListener('click', () => switchTab(tab.dataset.tab))); nextBtn.addEventListener('click', () => { const currentIndex = TABS_ORDER.indexOf(currentTab); if (currentIndex < TABS_ORDER.length - 1) { switchTab(TABS_ORDER[currentIndex + 1]); } }); prevBtn.addEventListener('click', () => { const currentIndex = TABS_ORDER.indexOf(currentTab); if (currentIndex > 0) { switchTab(TABS_ORDER[currentIndex - 1]); } }); // --- PDF Download --- downloadPdfBtn.addEventListener('click', async () => { const { jsPDF } = window.jspdf; const doc = new jsPDF({ orientation: 'p', unit: 'mm', format: 'a4' }); const content = document.getElementById('pdf-content'); document.getElementById('pdf-date').textContent = `Generated on: ${new Date().toLocaleString()}`; const canvas = await html2canvas(content, { scale: 2 }); const imgData = canvas.toDataURL('image/jpeg', 1.0); const imgProps = doc.getImageProperties(imgData); const pdfWidth = doc.internal.pageSize.getWidth() - 28; const pdfHeight = (imgProps.height * pdfWidth) / imgProps.width; doc.addImage(imgData, 'JPEG', 14, 15, pdfWidth, pdfHeight); document.getElementById('pdf-date').textContent = ''; doc.save(`Refund-Explanation-${queryItemInput.value.replace(/\s/g, '_') || 'Report'}.pdf`); }); // --- Initial Load --- renderConfig(); updateNavButtons(0); // Initial state for buttons });