Dropshipping Product Trend Analyzer
Analyze and compare product interest over time to find winning products.
Interest Over Time (12 Months)
Product Trend Analysis Report
Report Date:
Analysis Summary
| Product | Peak Interest | Trend Status |
|---|
Interest Over Time Comparison
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Peak Interest
${m.peakInterest}/100
Trend Status
${m.trendStatus}
${p.name}
`);
});
}
// --- FORMS & EVENT HANDLERS ---
document.getElementById('product-selection-container').addEventListener('change', analyzeTrends);
productForm.addEventListener('submit', (e) => {
e.preventDefault();
const trendDataRaw = document.getElementById('product-data').value.split(',').map(n => parseInt(n.trim())).filter(n => !isNaN(n));
if (trendDataRaw.length !== 12) {
alert('Please enter exactly 12 comma-separated numbers for the trend data.');
return;
}
const data = {
name: document.getElementById('product-name').value,
trendData: trendDataRaw
};
if (editingProductId) {
const product = products.find(p => p.id === editingProductId);
Object.assign(product, data);
} else {
data.id = Date.now();
products.push(data);
}
resetProductForm();
renderAll();
});
document.getElementById('cancel-edit-btn').addEventListener('click', resetProductForm);
document.getElementById('product-list').addEventListener('click', (e) => {
if (e.target.classList.contains('product-edit')) setupEditForm(parseInt(e.target.dataset.id));
if (e.target.classList.contains('product-delete')) deleteProduct(parseInt(e.target.dataset.id));
});
function resetProductForm() {
productForm.reset(); editingProductId = null;
document.getElementById('form-title').textContent = 'Add New Product';
document.getElementById('cancel-edit-btn').style.display = 'none';
}
function setupEditForm(id) {
const p = products.find(p => p.id === id); if (!p) return;
document.getElementById('product-id').value = p.id;
document.getElementById('product-name').value = p.name;
document.getElementById('product-data').value = p.trendData.join(', ');
editingProductId = id;
document.getElementById('form-title').textContent = 'Edit Product';
document.getElementById('cancel-edit-btn').style.display = 'inline-block';
}
function deleteProduct(id) {
if (confirm('Delete this product?')) {
products = products.filter(p => p.id !== id);
renderAll();
}
}
downloadPdfBtn.addEventListener('click', generatePdf);
// --- TABS & NAVIGATION ---
window.switchTab = (tabName) => { currentTab = tabName; Object.values(tabBtns).forEach(b=>b.classList.replace('tab-active', 'tab-inactive')); Object.values(tabContents).forEach(c=>c.style.display='none'); tabBtns[tabName].classList.replace('tab-inactive', 'tab-active'); tabContents[tabName].style.display = 'block'; };
window.navigateTabs = (dir) => { if (dir==='next' && currentTab==='analyzer') switchTab('config'); else if (dir==='prev' && currentTab==='config') switchTab('analyzer'); };
// --- PDF GENERATION ---
async function generatePdf() {
const { jsPDF } = window.jspdf;
const pdfReportElement = document.getElementById('pdf-report');
const selectedIds = Array.from(document.querySelectorAll('.product-checkbox:checked')).map(el => parseInt(el.value));
const selectedProducts = products.filter(p => selectedIds.includes(p.id));
document.getElementById('pdf-date').textContent = new Date().toLocaleDateString('en-US');
const pdfTableBody = document.getElementById('pdf-table-body');
pdfTableBody.innerHTML = '';
selectedProducts.forEach(p => {
const first = (p.trendData[0]+p.trendData[1]+p.trendData[2])/3; const last=(p.trendData[9]+p.trendData[10]+p.trendData[11])/3;
let status = 'Stable'; if (last > first*1.2) status = 'Rising'; if (last < first*0.8) status = 'Falling';
pdfTableBody.insertAdjacentHTML('beforeend', `