fix: improve discover and series special handling

internal/handler/discover_extra_test.go

@@ -35,3 +35,33 @@ func TestDiscoverProviderEnabledHonorsAPIConfigToggle(t *testing.T) {
 		t.Fatal("missing API config should keep discover provider available")
 	}
 }
+
+func TestDefaultDiscoverSectionKeysSkipDisabledProviders(t *testing.T) {
+	db, err := gorm.Open(sqlite.Open("file::memory:?cache=shared"), &gorm.Config{})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := db.AutoMigrate(&model.APIConfig{}); err != nil {
+		t.Fatal(err)
+	}
+	repos := repository.New(db)
+	apiConfig := service.NewAPIConfigService(zap.NewNop(), repos, service.NewCryptoService("", zap.NewNop()))
+	disabled := false
+	for _, provider := range []string{"douban", "bangumi"} {
+		if _, err := apiConfig.Update(t.Context(), provider, service.APIConfigPatch{Enabled: &disabled}); err != nil {
+			t.Fatal(err)
+		}
+	}
+	svc := &service.Container{APIConfig: apiConfig}
+
+	keys := defaultDiscoverSectionKeys(t.Context(), svc)
+	for _, key := range keys {
+		switch discoverSectionProvider(key) {
+		case "douban", "bangumi":
+			t.Fatalf("disabled provider key %q should not be selected by default; keys=%v", key, keys)
+		}
+	}
+	if len(keys) == 0 {
+		t.Fatal("default keys should keep enabled providers")
+	}
+}