feat(arch): unify frontend and backend into single Go backend server with static export

- Configure Next.js static export (output: 'export') with client-side dynamic fetching - Implement Go static serving with SPA fallback in backend/internal/router/router.go - Unify multi-stage build in backend/Dockerfile (Node -> Go -> minimal Alpine runtime) - Simplify root docker-compose.yml to single anl-app service on port 8080 - Update REQUIREMENTS.md DM-03 and AC-17 normative contracts to v3.0 Unified Go Backend - Restore strict regression verification in Gate 9 (AC-35/36/37) and unittest suite - All Go unit tests, TypeScript type checks, ESLint, and E2E gates passed clean
2026-08-25 12:54:39 +09:00
parent 5f87631530
commit 9bdc9bdd9a
27 changed files with 597 additions and 812 deletions
@@ -521,6 +521,47 @@ func TestCascadeDeletes(t *testing.T) {
 	assert.Equal(t, 0, courseCount, "Courses should be cascaded when parent semester is deleted")
 }

+func TestStaticServingAndRedirects(t *testing.T) {
+	db := setupTestDB(t)
+	defer db.Close()
+	r := router.SetupRouter(db, testAdminToken)
+
+	// 1. /intro 308 permanent redirect to /
+	wIntro := doRequest(r, "GET", "/intro", nil, "")
+	assert.Equal(t, http.StatusPermanentRedirect, wIntro.Code)
+	assert.Equal(t, "/", wIntro.Header().Get("Location"))
+
+	// 2. Unknown API route returns 404 JSON (not HTML)
+	wAPI404 := doRequest(r, "GET", "/api/v1/unknown-endpoint", nil, "")
+	assert.Equal(t, http.StatusNotFound, wAPI404.Code)
+	var apiErr map[string]any
+	require.NoError(t, json.Unmarshal(wAPI404.Body.Bytes(), &apiErr))
+	assert.Contains(t, apiErr, "error")
+
+	// 3. Create mock web directory to verify static HTML serving
+	webDir := "./web"
+	require.NoError(t, os.MkdirAll(filepath.Join(webDir, "test-page"), 0755))
+	require.NoError(t, os.WriteFile(filepath.Join(webDir, "index.html"), []byte("<html>Home</html>"), 0644))
+	require.NoError(t, os.WriteFile(filepath.Join(webDir, "test-page", "index.html"), []byte("<html>Test Page</html>"), 0644))
+	require.NoError(t, os.WriteFile(filepath.Join(webDir, "404.html"), []byte("<html>404 Not Found</html>"), 0644))
+	defer os.RemoveAll(webDir)
+
+	// Test root URL /
+	wRoot := doRequest(r, "GET", "/", nil, "")
+	assert.Equal(t, http.StatusOK, wRoot.Code)
+	assert.Contains(t, wRoot.Body.String(), "<html>Home</html>")
+
+	// Test sub-route /test-page
+	wTestPage := doRequest(r, "GET", "/test-page", nil, "")
+	assert.Equal(t, http.StatusOK, wTestPage.Code)
+	assert.Contains(t, wTestPage.Body.String(), "<html>Test Page</html>")
+
+	// Test unknown page -> 404 HTML
+	wUnknown := doRequest(r, "GET", "/completely-unknown-route", nil, "")
+	assert.Equal(t, http.StatusNotFound, wUnknown.Code)
+	assert.Contains(t, wUnknown.Body.String(), "<html>404 Not Found</html>")
+}
+
 func strconvItoa(i int) string {
 	return strconv.Itoa(i)
 }