Goose recover (#5450)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

ui/desktop/src/sessions.ts

@@ -1,19 +1,17 @@
-import { Session } from './api';
+import { Session, startAgent } from './api';
+import type { setViewType } from './hooks/useNavigation';
 
-export function resumeSession(
-  session: Session,
-  navigateInSameWindow?: (sessionId: string) => void
-) {
-  const workingDir = session.working_dir;
-  if (!workingDir) {
-    throw new Error('Cannot resume session: working directory is missing in session');
-  }
-
-  // When ALPHA is true and we have a navigation callback, resume in the same window
-  // Otherwise, open in a new window (old behavior)
-  if (process.env.ALPHA && navigateInSameWindow) {
-    navigateInSameWindow(session.id);
+export function resumeSession(session: Session, setView: setViewType) {
+  if (process.env.ALPHA) {
+    setView('pair', {
+      disableAnimation: true,
+      resumeSessionId: session.id,
+    });
   } else {
+    const workingDir = session.working_dir;
+    if (!workingDir) {
+      throw new Error('Cannot resume session: working directory is missing in session');
+    }
     window.electron.createChatWindow(
       undefined, // query
       workingDir,
@@ -22,3 +20,30 @@ export function resumeSession(
     );
   }
 }
+
+export async function startNewSession(
+  initialText: string | undefined,
+  resetChat: (() => void) | null,
+  setView: setViewType
+) {
+  if (!resetChat || process.env.ALPHA) {
+    const newAgent = await startAgent({
+      body: {
+        working_dir: window.appConfig.get('GOOSE_WORKING_DIR') as string,
+      },
+      throwOnError: true,
+    });
+    const session = newAgent.data;
+    setView('pair', {
+      disableAnimation: true,
+      initialMessage: initialText,
+      resumeSessionId: session.id,
+    });
+  } else {
+    resetChat();
+    setView('pair', {
+      disableAnimation: true,
+      initialMessage: initialText,
+    });
+  }
+}