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claude and others added 4 commits May 19, 2026 00:26
Complete MVP single-page application for searching promotional products
across Shopee, Mercado Livre, Amazon Brasil and Magazine Luiza, with
dark theme, responsive layout, filters, favorites, autocomplete and
infinite scroll. Ready to open directly in browser via index.html.

https://claude.ai/code/session_01Uh3vK5abdYMCsUtWQP969s
- Mercado Livre: integração direta via API pública REST (CORS habilitado,
  funciona do browser sem backend)
- Shopee: proxy via backend Node.js usando API interna de busca
- Magazine Luiza: scraping com Cheerio (Next.js __NEXT_DATA__ + fallback HTML)
- Amazon Brasil: scraping com Cheerio + headers de browser real
- Backend Express (server.js) com rota combinada /api/search e rotas
  individuais por marketplace
- Frontend detecta backend offline e cai automaticamente para ML direto
- Favoritos migrados de Set<number> para Map<string,product> (IDs reais da API)
- Barra de status indica se backend está online/offline

https://claude.ai/code/session_01Uh3vK5abdYMCsUtWQP969s
…uct-search-dKAp4

Add PromoHunt marketplace aggregator application
Express now serves index.html/style.css/script.js via express.static so
that opening http://localhost:3001 loads the app directly. API routes
remain at /api/search/*. Frontend BACKEND URL auto-detects same-origin
(port 3001) and uses relative paths, avoiding double-port confusion.

https://claude.ai/code/session_01Uh3vK5abdYMCsUtWQP969s
Copilot AI review requested due to automatic review settings May 24, 2026 16:53
@santanderdinho-hub santanderdinho-hub requested a review from a team as a code owner May 24, 2026 16:53
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Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds the PromoHunt marketplace search app, including a dark/light themed frontend and a Node/Express backend proxy that aggregates results from multiple Brazilian marketplaces (API + scraping).

Changes:

  • Added a full UI (HTML/CSS/JS) with search, filters, list/grid view, favorites panel, autocomplete, and toast notifications
  • Added an Express backend with /api/search aggregation and per-marketplace endpoints (Mercado Livre API + Shopee/Magalu/Amazon scraping)
  • Added backend package.json with required dependencies and dev/start scripts

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 14 comments.

Show a summary per file
File Description
marketplace-app/index.html New app shell markup for navbar, search, filters, results grid, favorites panel, and toast
marketplace-app/style.css New design system + component styles (dark-first with light theme override)
marketplace-app/script.js New client logic: API layer (backend + ML fallback), state, rendering, filters/sort, favorites, autocomplete, events
marketplace-app/server.js New Express backend proxy/scrapers + combined search endpoint
marketplace-app/package.json New backend package definition and runtime dependencies

Comment thread marketplace-app/server.js
const app = express();
const PORT = 3001;

app.use(cors({ origin: '*' }));
Comment thread marketplace-app/server.js
Comment on lines +168 to +169
const slug = query.trim().replace(/\s+/g, '%20');
const url = `https://www.magazineluiza.com.br/busca/${encodeURIComponent(query)}/`;
Comment thread marketplace-app/server.js
const priceOld = p.original_price || null;
const discount = calcDiscount(priceOld, price);
return {
id : `mg_${p.id || p.sku || Math.random()}`,
Comment thread marketplace-app/script.js Outdated
Comment on lines +96 to +98
const data = await res.json();
this._reportErrors(data.errors);
return data.products || [];
Comment thread marketplace-app/script.js
Comment on lines +248 to +252
return `
<article class="product-card" role="listitem"
data-id="${product.id}"
onclick="handleCardClick(event, ${safeId})"
>
Comment thread marketplace-app/script.js
items[acIndex]?.classList.remove('selected');
acIndex = (acIndex + dir + items.length) % items.length;
items[acIndex].classList.add('selected');
document.getElementById('searchInput').value = items[acIndex].textContent.trim();
Comment thread marketplace-app/script.js
Comment on lines +162 to +165
bar.innerHTML = '🟢 Backend online — buscando em todos os marketplaces';
} else {
bar.className = 'backend-status backend-status--offline';
bar.innerHTML = `🟡 Backend offline — exibindo apenas Mercado Livre &nbsp;·&nbsp; <a href="#" onclick="API.retryBackend()">Tentar novamente</a>`;
Comment thread marketplace-app/script.js
Comment on lines +718 to +739
/* Insere logo abaixo do hero */
const hero = document.querySelector('.hero');
hero?.insertAdjacentElement('afterend', bar);

/* Adiciona estilo inline para não precisar alterar o CSS */
const style = document.createElement('style');
style.textContent = `
.backend-status {
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
padding: 8px 20px;
font-size: .8rem;
border-bottom: 1px solid var(--border);
background: var(--bg-filter);
}
.backend-status a { color: var(--accent-1); cursor: pointer; }
.backend-status--online { color: #4ade80; }
.backend-status--offline { color: #f59e0b; }
`;
document.head.appendChild(style);
Comment thread marketplace-app/style.css
/* ══════════════════════════════════════════════════════════
TOAST
══════════════════════════════════════════════════════════ */
.toast {
Comment thread marketplace-app/style.css
opacity: 0;
pointer-events: none;
transition: opacity var(--t-mid) var(--ease), transform var(--t-mid) var(--ease);
white-space: nowrap;
claude and others added 6 commits May 24, 2026 16:57
- Home agora carrega feed de promoções automaticamente ao abrir (sem precisar buscar)
  usando /api/deals com 10 categorias populares do Mercado Livre em paralelo
- Botão "Copiar link" em cada card: copia a URL do produto com feedback visual
  (ícone vira ✓ por 2s) para facilitar o workflow de afiliados
- 403/429 de Shopee/Amazon/Magalu agora retornam HTTP 200 com array vazio
  em vez de 502, eliminando os erros vermelhos no F12 do browser
- Shopee: tenta API v4 e v2 em sequência com headers de browser completos
- Limpar a busca volta ao feed automático de deals (não estado vazio)
- Backend online depois do carregamento inicial recarrega o feed automaticamente

https://claude.ai/code/session_01Uh3vK5abdYMCsUtWQP969s
…uct-search-dKAp4

fix: PromoHunt — static server, deals feed, copy link e fix 403
Mercado Livre:
- Removido do backend completamente — agora é sempre chamado direto
  do browser (IP do usuário, CORS aberto, User-Agent real do Chrome)
- fetchFeaturedML() executa 5 queries em série com 120ms entre elas
  para evitar rate-limit; antes eram 8 em paralelo

Shopee:
- Nova abordagem em camadas:
  1. Tenta keyword search v4 (funciona se usuário tiver session)
  2. Fallback: flash sale API (endpoint público, sem login)
     GET /api/v4/flash_sale/get_all_sessions → pega sessão ativa
     GET /api/v4/flash_sale/get_flash_sale_item_list → itens reais
- Normalização separada para flash items vs search items

Backend /api/search e /api/deals:
- ML removido de ambos (browser cuida do ML)
- /api/deals agora retorna Shopee flash + Amazon + Magalu
- Todos os erros retornam HTTP 200 com array vazio (zero erros no F12)

Frontend API layer:
- search(): ML direto + backend em paralelo, resultados mesclados
- fetchDeals(): ML featured + backend /api/deals em paralelo
- _merge(): helper de deduplicação por ID

https://claude.ai/code/session_01Uh3vK5abdYMCsUtWQP969s
…uct-search-dKAp4

fix: ML direto do browser + Shopee flash sale + zero 403 no F12
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