Initial commit

tauri/src/platform/filesystem.ts

@@ -0,0 +1,38 @@
+import type { FileFilter, PlatformFilesystem } from '@/platform/types';
+
+export const tauriFilesystem: PlatformFilesystem = {
+  async saveFile(filename: string, blob: Blob, filters?: FileFilter[]) {
+    const { save } = await import('@tauri-apps/plugin-dialog');
+    const { writeFile } = await import('@tauri-apps/plugin-fs');
+
+    const filePath = await save({
+      defaultPath: filename,
+      filters: filters || [],
+    });
+
+    if (!filePath) return; // User cancelled the dialog
+
+    const resolvedPath =
+      typeof filePath === 'string' ? filePath : (filePath as { path: string }).path;
+
+    if (!resolvedPath) {
+      throw new Error('Failed to resolve save path from dialog');
+    }
+
+    const arrayBuffer = await blob.arrayBuffer();
+    await writeFile(resolvedPath, new Uint8Array(arrayBuffer));
+  },
+
+  async openPath(path: string) {
+    const { open } = await import('@tauri-apps/plugin-shell');
+    await open(path);
+  },
+
+  async pickDirectory(title: string) {
+    const { open } = await import('@tauri-apps/plugin-dialog');
+    const selected = await open({ directory: true, title });
+    if (!selected) return null;
+    const dir = typeof selected === 'string' ? selected : (selected as { path: string }).path;
+    return dir || null;
+  },
+};