feat: competitor price comparison in transceiver detail
- API: also returns comparable_prices from technically equivalent products (same form_factor + speed_gbps + reach ±25%, different vendor, last 30 days) - Dashboard: direct prices shown first, then separator + comparable products - Comparable entries show vendor + exact part number scraped from their site - Verified badge = real URL + observed within 7 days (strict)
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Rene Fichtmueller
parent
91ec2b0daa
commit
be90984905
@ -53,7 +53,7 @@ transceiverRouter.get("/:id", async (req: Request, res: Response) => {
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[transceiver.id]
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);
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// Flag: price is only "verified" if also observed within 7 days
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// Flag: price is only "verified" if observed within 7 days with real URL
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const sevenDaysAgo = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000);
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const prices = pricesResult.rows.map((row) => ({
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vendor_name: row.vendor_name,
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@ -64,11 +64,61 @@ transceiverRouter.get("/:id", async (req: Request, res: Response) => {
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url: row.url,
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stock_level: row.stock_level,
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observed_at: row.time,
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// Verified = scraped from real URL + observed within 7 days
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is_verified: row.url && new Date(row.time) > sevenDaysAgo,
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is_verified: !!(row.url && new Date(row.time) > sevenDaysAgo),
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is_same_product: true,
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}));
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res.json({ success: true, data: { ...transceiver, competitor_prices: prices } });
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// Market comparison: technically equivalent products from other vendors
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// Same form_factor + speed_gbps + reach within 20% tolerance, different vendor
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// Only real scraped prices (url IS NOT NULL), last 30 days, max 1 per source vendor
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const comparableResult = await pool.query(
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`SELECT DISTINCT ON (po.source_vendor_id)
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po.price, po.currency, po.url, po.time,
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sv.name AS vendor_name, sv.type AS vendor_type,
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t2.part_number, t2.standard_name, t2.id AS comparable_id
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FROM transceivers t1
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JOIN transceivers t2 ON (
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t2.form_factor = t1.form_factor
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AND t2.speed_gbps = t1.speed_gbps
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AND (
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t1.reach_meters IS NULL OR t2.reach_meters IS NULL
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OR ABS(t2.reach_meters - t1.reach_meters) <= GREATEST(t1.reach_meters, 1) * 0.25
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)
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AND t2.id != t1.id
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)
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JOIN price_observations po ON po.transceiver_id = t2.id
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JOIN vendors sv ON po.source_vendor_id = sv.id
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WHERE t1.id = $1
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AND po.time > NOW() - INTERVAL '30 days'
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AND po.price > 0
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AND po.url IS NOT NULL
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-- Exclude vendors that already appear in direct prices
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AND sv.id NOT IN (
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SELECT source_vendor_id FROM price_observations
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WHERE transceiver_id = $1 AND time > NOW() - INTERVAL '30 days'
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)
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ORDER BY po.source_vendor_id, po.time DESC
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LIMIT 10`,
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[transceiver.id]
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);
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const comparablePrices = comparableResult.rows.map((row) => ({
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vendor_name: row.vendor_name,
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vendor_type: row.vendor_type,
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price: parseFloat(row.price),
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currency: row.currency,
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url: row.url,
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observed_at: row.time,
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is_verified: !!(row.url && new Date(row.time) > sevenDaysAgo),
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is_same_product: false, // different SKU, same spec class
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comparable_part: row.part_number || row.standard_name,
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comparable_id: row.comparable_id,
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}));
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res.json({
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success: true,
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data: { ...transceiver, competitor_prices: [...prices, ...comparablePrices] },
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});
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} catch (err) {
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console.error("Get transceiver error:", err);
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res.status(500).json({ success: false, error: "Internal server error" });
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@ -1953,26 +1953,40 @@ async function openTxDetail(id) {
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]);
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// SPECIFICATION — Pricing
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// Rule: Only show prices that were scraped from a real URL within the last 30 days.
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// Unverified / estimated prices are NOT shown — silence is better than wrong data.
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var prices = (t.competitor_prices || []).filter(function(p) { return p.url && p.price > 0; });
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if (prices.length > 0) {
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// Rule: Only prices with real URL from last 30 days. No estimated/fallback prices.
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var allPrices = (t.competitor_prices || []).filter(function(p) { return p.url && p.price > 0; });
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var directPrices = allPrices.filter(function(p) { return p.is_same_product !== false; });
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var comparPrices = allPrices.filter(function(p) { return p.is_same_product === false; });
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if (allPrices.length > 0) {
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h += '<div class="panel-section">Current Prices</div>';
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h += '<div class="spec-table">';
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prices.forEach(function(p) {
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// Verified badge only if observed within 7 days AND has a real URL
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function renderPriceRow(p) {
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var verBadge = p.is_verified === true
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? '<span style="color:#2d6a4f;font-size:0.7rem;font-weight:600;margin-left:0.5rem" title="Price scraped from official vendor page within the last 7 days">✓ Verified Price</span>'
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: ''; // No badge for older observations — not wrong, just not shown as verified
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var priceStr = '<strong>' + p.currency + '\u00a0' + parseFloat(p.price).toLocaleString('de-DE', {minimumFractionDigits:2,maximumFractionDigits:2}) + '</strong>';
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var dateStr = '<span style="color:#aaa;font-size:0.68rem;margin-left:0.5rem">Stand: ' + fmtDate(p.observed_at) + '</span>';
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var urlLink = '<a href="' + esc(p.url) + '" target="_blank" rel="noopener" style="color:var(--accent);font-size:0.7rem;text-decoration:none;margin-left:0.5rem" title="Direkt zur Quelle">↗ Quelle</a>';
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h += '<div class="spec-row"><span class="spec-label">' + esc(p.vendor_name) + '</span>'
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+ '<span class="spec-val" style="display:flex;align-items:center;flex-wrap:wrap;gap:0">' + priceStr + verBadge + dateStr + urlLink + '</span></div>';
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});
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? '<span style="color:#2d6a4f;font-size:0.68rem;font-weight:600;margin-left:0.5rem" title="Scraped from official vendor page, max. 7 days old">✓ Verified</span>'
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: '';
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var priceStr = '<strong style="font-size:0.9rem">' + p.currency + '\u00a0' + parseFloat(p.price).toLocaleString('de-DE', {minimumFractionDigits:2,maximumFractionDigits:2}) + '</strong>';
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var dateStr = '<span style="color:#aaa;font-size:0.67rem;margin-left:0.5rem">Stand: ' + fmtDate(p.observed_at) + '</span>';
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var urlLink = '<a href="' + esc(p.url) + '" target="_blank" rel="noopener" style="color:var(--accent);font-size:0.68rem;text-decoration:none;margin-left:0.5rem">↗</a>';
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var label = esc(p.vendor_name);
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if (p.is_same_product === false && p.comparable_part) {
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label += '<div style="font-size:0.62rem;color:#aaa;font-weight:400;margin-top:1px" title="Equivalent product, different SKU">' + esc(p.comparable_part) + '</div>';
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}
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return '<div class="spec-row"><span class="spec-label">' + label + '</span>'
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+ '<span class="spec-val" style="display:flex;align-items:center;flex-wrap:wrap">' + priceStr + verBadge + dateStr + urlLink + '</span></div>';
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}
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directPrices.forEach(function(p) { h += renderPriceRow(p); });
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if (comparPrices.length > 0) {
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h += '<div style="font-size:0.7rem;color:#888;margin:0.5rem 0 0.25rem;padding-top:0.4rem;border-top:1px solid var(--border)">Vergleichbare Produkte anderer Hersteller (gleiche Spezifikation)</div>';
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comparPrices.forEach(function(p) { h += renderPriceRow(p); });
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}
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h += '</div>';
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}
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// No price_observations → show nothing. Never display estimated or unverifiable prices.
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// No price_observations → show nothing. Never display estimated prices.
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// Notes (scraped extra specs)
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if (t.notes) {
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