From c9422be78e1e54c54e718e732235103dee1aca84 Mon Sep 17 00:00:00 2001
From: Mathieu <mathieu.fort@gmail.com>
Date: Mon, 8 Jun 2026 17:15:58 +0200
Subject: [PATCH] feat: API route GET /api/products/search (TDD)
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Implémentation test-driven du endpoint de recherche de produits par référence.
- Tests unitaires complets validant les cas nominaux et d'erreur
- Validation du paramètre ref avec gestion des chaînes vides
- Intégration avec searchProductByRef de lib/shopify
- Gestion appropriée des erreurs HTTP (400, 500)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/__tests__/api/products/search.test.ts | 53 +++++++++++++++++++++++
 src/app/api/products/search/route.ts      | 18 ++++++++
 2 files changed, 71 insertions(+)
 create mode 100644 src/__tests__/api/products/search.test.ts
 create mode 100644 src/app/api/products/search/route.ts

diff --git a/src/__tests__/api/products/search.test.ts b/src/__tests__/api/products/search.test.ts
new file mode 100644
index 0000000..dfcaf27
--- /dev/null
+++ b/src/__tests__/api/products/search.test.ts
@@ -0,0 +1,53 @@
+import { GET } from '@/app/api/products/search/route'
+import { NextRequest } from 'next/server'
+
+jest.mock('@/lib/shopify', () => ({
+  searchProductByRef: jest.fn(),
+}))
+
+import { searchProductByRef } from '@/lib/shopify'
+const mockSearch = searchProductByRef as jest.Mock
+
+describe('GET /api/products/search', () => {
+  beforeEach(() => jest.clearAllMocks())
+
+  it('retourne 400 si le paramètre ref est absent', async () => {
+    const req = new NextRequest('http://localhost/api/products/search')
+    const res = await GET(req)
+    expect(res.status).toBe(400)
+    const data = await res.json()
+    expect(data.error).toMatch(/ref/)
+  })
+
+  it('retourne 400 si ref est une chaîne vide', async () => {
+    const req = new NextRequest('http://localhost/api/products/search?ref=')
+    const res = await GET(req)
+    expect(res.status).toBe(400)
+  })
+
+  it('retourne { found: false } si produit introuvable', async () => {
+    mockSearch.mockResolvedValue({ found: false })
+    const req = new NextRequest('http://localhost/api/products/search?ref=REF-9999')
+    const res = await GET(req)
+    expect(res.status).toBe(200)
+    expect(await res.json()).toEqual({ found: false })
+    expect(mockSearch).toHaveBeenCalledWith('REF-9999')
+  })
+
+  it('retourne le produit trouvé', async () => {
+    mockSearch.mockResolvedValue({ found: true, shopifyId: '123456', title: 'Carrelage REF-1042' })
+    const req = new NextRequest('http://localhost/api/products/search?ref=REF-1042')
+    const res = await GET(req)
+    expect(res.status).toBe(200)
+    expect(await res.json()).toEqual({ found: true, shopifyId: '123456', title: 'Carrelage REF-1042' })
+  })
+
+  it('retourne 500 en cas d\'erreur Shopify', async () => {
+    mockSearch.mockRejectedValue(new Error('Shopify API error: 503'))
+    const req = new NextRequest('http://localhost/api/products/search?ref=REF-1042')
+    const res = await GET(req)
+    expect(res.status).toBe(500)
+    const data = await res.json()
+    expect(data.error).toBeTruthy()
+  })
+})
diff --git a/src/app/api/products/search/route.ts b/src/app/api/products/search/route.ts
new file mode 100644
index 0000000..17a9b65
--- /dev/null
+++ b/src/app/api/products/search/route.ts
@@ -0,0 +1,18 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { searchProductByRef } from '@/lib/shopify'
+
+export async function GET(req: NextRequest) {
+  const ref = req.nextUrl.searchParams.get('ref')
+
+  if (!ref || ref.trim() === '') {
+    return NextResponse.json({ error: 'Paramètre ref requis' }, { status: 400 })
+  }
+
+  try {
+    const result = await searchProductByRef(ref.trim())
+    return NextResponse.json(result)
+  } catch (err) {
+    const message = err instanceof Error ? err.message : 'Erreur inconnue'
+    return NextResponse.json({ error: message }, { status: 500 })
+  }
+}