feat(device): add device sync button

src/lib/stores/deviceSync.ts

@@ -0,0 +1,81 @@
+import { LazyStore } from '@tauri-apps/plugin-store';
+import { writable, type Writable } from 'svelte/store';
+
+// Device sync settings interface
+export type OverwriteMode = 'skip' | 'different' | 'always';
+
+export interface DeviceSyncSettings {
+  musicPath: string | null;
+  playlistsPath: string | null;
+  overwriteMode: OverwriteMode;
+}
+
+// Initialize the store with device-sync.json
+const store = new LazyStore('device-sync.json');
+
+// Default settings
+const defaultSettings: DeviceSyncSettings = {
+  musicPath: null,
+  playlistsPath: null,
+  overwriteMode: 'different'
+};
+
+// Create a writable store for reactive UI updates
+export const deviceSyncSettings: Writable<DeviceSyncSettings> = writable(defaultSettings);
+
+// Load settings from store
+export async function loadDeviceSyncSettings(): Promise<void> {
+  const musicPath = await store.get<string>('musicPath');
+  const playlistsPath = await store.get<string>('playlistsPath');
+  const overwriteMode = await store.get<OverwriteMode>('overwriteMode');
+
+  deviceSyncSettings.set({
+    musicPath: musicPath ?? null,
+    playlistsPath: playlistsPath ?? null,
+    overwriteMode: overwriteMode ?? 'different'
+  });
+}
+
+// Save device music path setting
+export async function setMusicPath(path: string | null): Promise<void> {
+  if (path) {
+    await store.set('musicPath', path);
+  } else {
+    await store.delete('musicPath');
+  }
+  await store.save();
+
+  deviceSyncSettings.update(s => ({
+    ...s,
+    musicPath: path
+  }));
+}
+
+// Save device playlists path setting
+export async function setPlaylistsPath(path: string | null): Promise<void> {
+  if (path) {
+    await store.set('playlistsPath', path);
+  } else {
+    await store.delete('playlistsPath');
+  }
+  await store.save();
+
+  deviceSyncSettings.update(s => ({
+    ...s,
+    playlistsPath: path
+  }));
+}
+
+// Save overwrite mode setting
+export async function setOverwriteMode(mode: OverwriteMode): Promise<void> {
+  await store.set('overwriteMode', mode);
+  await store.save();
+
+  deviceSyncSettings.update(s => ({
+    ...s,
+    overwriteMode: mode
+  }));
+}
+
+// Initialize settings on import
+loadDeviceSyncSettings();