Migrate useLastOpenedFile hook

app/src/hooks/useLastOpenedFile.ts

@@ -0,0 +1,42 @@
+import { useCallback } from 'react';
+import { getLastOpenedFile, updateLastOpenedFile } from '../api/file';
+import { useWorkspace } from '../contexts/WorkspaceContext';
+
+interface UseLastOpenedFileResult {
+  loadLastOpenedFile: () => Promise<string | null>;
+  saveLastOpenedFile: (filePath: string) => Promise<void>;
+}
+
+export const useLastOpenedFile = (): UseLastOpenedFileResult => {
+  const { currentWorkspace } = useWorkspace();
+
+  const loadLastOpenedFile = useCallback(async (): Promise<string | null> => {
+    if (!currentWorkspace) return null;
+
+    try {
+      const response: string = await getLastOpenedFile(currentWorkspace.name);
+      return response || null;
+    } catch (error) {
+      console.error('Failed to load last opened file:', error);
+      return null;
+    }
+  }, [currentWorkspace]);
+
+  const saveLastOpenedFile = useCallback(
+    async (filePath: string): Promise<void> => {
+      if (!currentWorkspace) return;
+
+      try {
+        await updateLastOpenedFile(currentWorkspace.name, filePath);
+      } catch (error) {
+        console.error('Failed to save last opened file:', error);
+      }
+    },
+    [currentWorkspace]
+  );
+
+  return {
+    loadLastOpenedFile,
+    saveLastOpenedFile,
+  };
+};