feat: add configurable generation timeout

backend/internal/api/handlers.go

@@ -44,6 +44,34 @@ func New(s store.Store, dataDir string, logger *logrus.Logger, llmEndpoint, llmK
 	}
 }
 
+func normalizeSettings(settings *store.Settings) {
+	// Default Text Generation Timeout
+	if settings.TextGenerationTimeoutMinutes == 0 {
+		settings.TextGenerationTimeoutMinutes = 5
+	}
+
+	// Validate Text Generation Timeout
+	switch settings.TextGenerationTimeoutMinutes {
+	case 1, 5, 10, 15, 30:
+		return
+	default:
+		settings.TextGenerationTimeoutMinutes = 5
+	}
+}
+
+func (a *API) textGenerationTimeout() time.Duration {
+	// Load Settings
+	settings, err := a.store.GetSettings()
+	if err != nil {
+		a.logger.WithError(err).Error("failed to retrieve settings for text generation timeout")
+		return 5 * time.Minute
+	}
+
+	// Normalize Timeout
+	normalizeSettings(settings)
+	return time.Duration(settings.TextGenerationTimeoutMinutes) * time.Minute
+}
+
 func (a *API) GetSettings(w http.ResponseWriter, r *http.Request) {
 	log := a.logger.WithField("handler", "GetSettingsHandler")
 
@@ -54,6 +82,9 @@ func (a *API) GetSettings(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Normalize Settings
+	normalizeSettings(settings)
+
 	w.Header().Set("Content-Type", "application/json")
 	if err := json.NewEncoder(w).Encode(settings); err != nil {
 		log.WithError(err).Error("failed to encode application settings response")
@@ -72,6 +103,9 @@ func (a *API) PostSettings(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Normalize Settings
+	normalizeSettings(&newSettings)
+
 	if err := a.store.SaveSettings(&newSettings); err != nil {
 		log.WithError(err).Error("failed to save settings")
 		http.Error(w, "Failed to save application settings", http.StatusInternalServerError)
@@ -589,7 +623,7 @@ func (a *API) startMessageGeneration(chatID uuid.UUID, chatModel, userMessage st
 
 func (a *API) runMessageGeneration(apiClient *client.Client, chat *store.Chat, assistantMsg *store.Message, chatModel string, gen *generation) {
 	// Create Generation Context
-	ctx, cancel := context.WithTimeout(gen.ctx, time.Minute*5)
+	ctx, cancel := context.WithTimeout(gen.ctx, a.textGenerationTimeout())
 	defer cancel()
 
 	// Send Message

backend/internal/store/memory_test.go

@@ -144,6 +144,7 @@ func TestInMemoryStore_SaveSettings(t *testing.T) {
 		ImageEditSelector:            ".image-edit",
 		ImageGenerationSelector:      ".image-gen",
 		TextGenerationSelector:       ".text-gen",
+		TextGenerationTimeoutMinutes: 10,
 	}
 
 	err := store.SaveSettings(settings)
@@ -163,6 +164,7 @@ func TestInMemoryStore_GetSettings(t *testing.T) {
 		ImageEditSelector:            ".image-edit",
 		ImageGenerationSelector:      ".image-gen",
 		TextGenerationSelector:       ".text-gen",
+		TextGenerationTimeoutMinutes: 10,
 	}
 	err = store.SaveSettings(settings)
 	require.NoError(t, err)
@@ -171,4 +173,5 @@ func TestInMemoryStore_GetSettings(t *testing.T) {
 	settings, err = store.GetSettings()
 	require.NoError(t, err)
 	assert.Equal(t, ".image-edit", settings.ImageEditSelector)
+	assert.Equal(t, 10, settings.TextGenerationTimeoutMinutes)
 }

backend/internal/store/storage.go

@@ -18,6 +18,7 @@ type Settings struct {
 	ImageEditSelector            string `json:"image_edit_selector,omitempty"`
 	ImageGenerationSelector      string `json:"image_generation_selector,omitempty"`
 	TextGenerationSelector       string `json:"text_generation_selector,omitempty"`
+	TextGenerationTimeoutMinutes int    `json:"text_generation_timeout_minutes,omitempty"`
 }
 
 // FileStore implements the Store interface using a file-based storage

backend/internal/store/storage_test.go

@@ -212,6 +212,7 @@ func TestFileStore_SaveSettings(t *testing.T) {
 		ImageEditSelector:            ".image-edit",
 		ImageGenerationSelector:      ".image-gen",
 		TextGenerationSelector:       ".text-gen",
+		TextGenerationTimeoutMinutes: 10,
 	}
 
 	err = store.SaveSettings(settings)
@@ -239,6 +240,7 @@ func TestFileStore_GetSettings(t *testing.T) {
 		ImageEditSelector:            ".image-edit",
 		ImageGenerationSelector:      ".image-gen",
 		TextGenerationSelector:       ".text-gen",
+		TextGenerationTimeoutMinutes: 10,
 	}
 	err = store.SaveSettings(settings)
 	require.NoError(t, err)
@@ -247,4 +249,5 @@ func TestFileStore_GetSettings(t *testing.T) {
 	settings, err = store.GetSettings()
 	require.NoError(t, err)
 	assert.Equal(t, ".image-edit", settings.ImageEditSelector)
+	assert.Equal(t, 10, settings.TextGenerationTimeoutMinutes)
 }

frontend/public/pages/settings.html

@@ -63,6 +63,34 @@
     </div>
   </div>
 
+  <div class="mt-2">
+    <span class="text-sm font-medium font-semibold text-primary-700"
+      >Generation</span
+    >
+    <div class="flex flex-col md:flex-row pl-1 gap-4 justify-between">
+      <div class="w-full md:w-1/3">
+        <label
+          for="textGenerationTimeout"
+          class="text-sm font-medium text-primary-700"
+          >Chat Timeout</label
+        >
+        <select
+          id="textGenerationTimeout"
+          name="textGenerationTimeout"
+          x-model.number="settings.text_generation_timeout_minutes"
+          class="mt-1 p-1 block w-full rounded-md border-primary-400 shadow focus:border-secondary-500 focus:ring-secondary-500 sm:text-sm text-primary-900"
+        >
+          <template x-for="minutes in timeoutOptions" x-bind:key="minutes">
+            <option x-bind:value="minutes" x-text="`${minutes}m`"></option>
+          </template>
+        </select>
+        <p class="mt-2 text-xs text-primary-500">
+          Maximum time a chat response can stream before timing out
+        </p>
+      </div>
+    </div>
+  </div>
+
   <div
     x-show="error"
     class="bg-tertiary-50 border border-tertiary-200 rounded-md p-4"

frontend/src/components/settingsManager.ts

@@ -4,12 +4,14 @@ import { Settings } from '../types';
 
 Alpine.data('settingsManager', () => ({
   settings: {} as Settings,
+  timeoutOptions: [1, 5, 10, 15, 30],
   loading: false,
   saved: false,
   error: '',
 
   async init() {
     this.settings = await getSettings();
+    this.settings.text_generation_timeout_minutes ||= 5;
   },
 
   async saveSettings() {

frontend/src/types/index.ts

@@ -41,6 +41,7 @@ export interface Settings {
   image_edit_selector?: string;
   image_generation_selector?: string;
   text_generation_selector?: string;
+  text_generation_timeout_minutes?: number;
 }
 
 export interface ImageRecord {