feat(files): upload files with drag and drop

packages/ui/src/lib/api/files-errors.test.ts

@@ -25,4 +25,9 @@ describe('FilesystemError', () => {
     expect(parseFilesystemErrorReason('made-up')).toBe('unknown');
     expect(parseFilesystemErrorReason(undefined)).toBe('unknown');
   });
+
+  test('recognizes filesystem errors created across runtime boundaries', () => {
+    expect(isFilesystemError({ reason: 'already-exists' })).toBe(true);
+    expect(isFilesystemError({ reason: 409 })).toBe(false);
+  });
 });

packages/ui/src/lib/api/files-errors.ts

@@ -1,5 +1,6 @@
 export type FilesystemErrorReason =
   | 'os-permission'
+  | 'already-exists'
   | 'not-found'
   | 'not-directory'
   | 'invalid-response'
@@ -30,6 +31,7 @@ export const isFilesystemError = (error: unknown): error is FilesystemError => (
 export const parseFilesystemErrorReason = (value: unknown): FilesystemErrorReason => {
   switch (value) {
     case 'os-permission':
+    case 'already-exists':
     case 'not-found':
     case 'not-directory':
     case 'invalid-response':

packages/ui/src/lib/api/types.ts

@@ -606,6 +606,7 @@ export interface FilesAPI {
   readFile?(path: string, options?: FileReadOptions): Promise<{ content: string; path: string }>;
   readFileBinary?(path: string, options?: FileReadOptions): Promise<{ dataUrl: string; path: string }>;
   writeFile?(path: string, content: string): Promise<{ success: boolean; path: string }>;
+  uploadFile?(path: string, file: Blob, options?: { overwrite?: boolean; directory?: string }): Promise<{ success: boolean; path: string }>;
   delete?(path: string): Promise<{ success: boolean }>;
   rename?(oldPath: string, newPath: string): Promise<{ success: boolean; path: string }>;
   revealPath?(path: string): Promise<{ success: boolean }>;