fix(app): show setup wizard when configured Ollama model is missing

.changeset/fix-ollama-model-check.md

@@ -0,0 +1,11 @@
+---
+"think-app": patch
+---
+
+fix(app): show setup wizard when configured Ollama model is missing
+
+Fixes #44
+
+Previously, if Ollama was installed and running but the configured chat model (e.g., llama3.2) wasn't downloaded, the app would skip the setup wizard and fail when trying to chat.
+
+Now the app checks if the configured model is actually available before skipping the setup wizard. Also improved the model download progress to show user-friendly status messages instead of raw layer hashes.

app/src/App.tsx

@@ -106,6 +106,23 @@ function App() {
           setAppState("ai_setup");
           return;
         }
+
+        // Check if the configured model is actually downloaded
+        const modelsRes = await apiFetch("/api/settings/models?provider=ollama");
+        const modelsData = await modelsRes.json();
+
+        // Check if current_model exists in the available models list
+        const hasConfiguredModel = modelsData.models?.some(
+          (m: { name: string }) =>
+            m.name === modelsData.current_model ||
+            m.name.startsWith(modelsData.current_model + ":")
+        );
+
+        if (!hasConfiguredModel) {
+          // Configured model not downloaded - show setup wizard
+          setAppState("ai_setup");
+          return;
+        }
       }
     } catch {
       // If checks fail, proceed to app (don't block on check failure)

app/src/SetupWizard.tsx

@@ -56,6 +56,15 @@ function WizardLayout({ title, children }: { title?: string; children: React.Rea
   );
 }
 
+const formatPullStatus = (status: string): string => {
+  if (status.startsWith('pulling manifest')) return 'Preparing download...';
+  if (status.startsWith('pulling ')) return 'Downloading model...';
+  if (status.startsWith('verifying')) return 'Verifying download...';
+  if (status.startsWith('writing')) return 'Finalizing...';
+  if (status === 'success') return 'Complete!';
+  return status;
+};
+
 export default function SetupWizard({ onComplete }: Props) {
   const [step, setStep] = useState<SetupStep>('check');
   const [progress, setProgress] = useState(0);
@@ -85,7 +94,7 @@ export default function SetupWizard({ onComplete }: Props) {
         setProgress(data.progress);
       }
       if (data.status) {
-        setStatusText(data.status);
+        setStatusText(formatPullStatus(data.status));
       }
     });
 
@@ -112,17 +121,34 @@ export default function SetupWizard({ onComplete }: Props) {
       if (res.ok) {
         const data = await res.json();
         const models = data.models?.map((m: { name: string }) => m.name) || [];
+        const hasChatModel = models.some((n: string) => n.startsWith('llama3.2'));
         const hasEmbedding = models.some((n: string) => n.startsWith('mxbai-embed-large'));
 
-        if (!hasEmbedding && window.electronAPI) {
+        if ((!hasChatModel || !hasEmbedding) && window.electronAPI) {
           setStep('pulling');
-          setProgress(0);
-          setStatusText('Downloading embedding model...');
-          const result = await window.electronAPI.pullModel('mxbai-embed-large');
-          if (!result.success) {
-            setError(result.error || 'Embedding model download failed');
-            setStep('choose');
-            return;
+
+          // Pull chat model if missing
+          if (!hasChatModel) {
+            setProgress(0);
+            setStatusText('Downloading chat model...');
+            const chatResult = await window.electronAPI.pullModel('llama3.2');
+            if (!chatResult.success) {
+              setError(chatResult.error || 'Chat model download failed');
+              setStep('choose');
+              return;
+            }
+          }
+
+          // Pull embedding model if missing
+          if (!hasEmbedding) {
+            setProgress(0);
+            setStatusText('Downloading embedding model...');
+            const embedResult = await window.electronAPI.pullModel('mxbai-embed-large');
+            if (!embedResult.success) {
+              setError(embedResult.error || 'Embedding model download failed');
+              setStep('choose');
+              return;
+            }
           }
         }