refactor(device-sync): G.76 — extract browser + device-scan + job-events hooks + choose-folder util (cluster) (#643)

Four-cut cluster pulling the remaining lifecycle code out of
DeviceSync.tsx. 928 → 638 LOC (−290).

useDeviceSyncBrowser — playlists / randomAlbums / artists state +
their three loaders + the tab-switch useEffect that lazy-loads on
first visit + the 300 ms debounced album-search useEffect + the
expandedArtistIds / artistAlbumsMap / loadingArtistIds state with
toggleArtistExpand. Takes activeTab + search + a resetSearch
callback (so the tab-switch effect can clear the search input the
page still owns).

useDeviceSyncDeviceScan — scanDevice useCallback + the on-mount
useEffect + the auto-import-manifest useEffect (with the
manifestImportedRef gate so it only fires once per drive plug-in)
+ the clean-on-unplug useEffect that clears deviceFilePaths and
resets the import flag.

useDeviceSyncJobEvents — the device:sync:progress and
device:sync:complete event listeners. Complete handler dispatches
the toast, writes the manifest, generates per-playlist m3u8 files
(through fetchTracksForSource + trackToSyncInfo), and triggers
scanDevice. Cancelled state is preserved by re-calling
useDeviceSyncJobStore.cancel() after complete().

runDeviceSyncChooseFolder — the openDialog → setTargetDir →
optional manifest auto-import → scanDevice timer flow.

DeviceSync drops every direct import that those hooks now own
(getPlaylists, getArtists, getArtist, getAlbumList, searchSubsonic,
listen, openDialog, useEffect, useRef, SubsonicPlaylist /
SubsonicArtist / SubsonicAlbum type imports). Pure code move
otherwise — no behaviour change.
This commit is contained in:
Frank Stellmacher
2026-05-13 15:17:19 +02:00
committed by GitHub
parent c7946f26b6
commit 6fcf2259f6
5 changed files with 297 additions and 207 deletions
+106
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@@ -0,0 +1,106 @@
import { useCallback, useEffect, useState } from 'react';
import { getPlaylists } from '../api/subsonicPlaylists';
import { getArtists, getArtist } from '../api/subsonicArtists';
import { getAlbumList } from '../api/subsonicLibrary';
import { search as searchSubsonic } from '../api/subsonicSearch';
import type {
SubsonicAlbum, SubsonicArtist, SubsonicPlaylist,
} from '../api/subsonicTypes';
import type { SourceTab } from '../utils/deviceSyncHelpers';
export interface DeviceSyncBrowserResult {
playlists: SubsonicPlaylist[];
randomAlbums: SubsonicAlbum[];
albumSearchResults: SubsonicAlbum[];
albumSearchLoading: boolean;
artists: SubsonicArtist[];
loadingBrowser: boolean;
expandedArtistIds: Set<string>;
artistAlbumsMap: Map<string, SubsonicAlbum[]>;
loadingArtistIds: Set<string>;
toggleArtistExpand: (artistId: string) => Promise<void>;
}
export function useDeviceSyncBrowser(
activeTab: SourceTab,
search: string,
resetSearch: () => void,
): DeviceSyncBrowserResult {
const [playlists, setPlaylists] = useState<SubsonicPlaylist[]>([]);
const [randomAlbums, setRandomAlbums] = useState<SubsonicAlbum[]>([]);
const [albumSearchResults, setAlbumSearchResults] = useState<SubsonicAlbum[]>([]);
const [albumSearchLoading, setAlbumSearchLoading] = useState(false);
const [artists, setArtists] = useState<SubsonicArtist[]>([]);
const [loadingBrowser, setLoadingBrowser] = useState(false);
const [expandedArtistIds, setExpandedArtistIds] = useState<Set<string>>(new Set());
const [artistAlbumsMap, setArtistAlbumsMap] = useState<Map<string, SubsonicAlbum[]>>(new Map());
const [loadingArtistIds, setLoadingArtistIds] = useState<Set<string>>(new Set());
const loadPlaylists = useCallback(async () => {
setLoadingBrowser(true);
try { setPlaylists(await getPlaylists()); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
const loadRandomAlbums = useCallback(async () => {
setLoadingBrowser(true);
try { setRandomAlbums(await getAlbumList('random', 10)); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
const loadArtists = useCallback(async () => {
setLoadingBrowser(true);
try { setArtists(await getArtists()); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
useEffect(() => {
resetSearch();
if (activeTab === 'playlists' && playlists.length === 0) loadPlaylists();
if (activeTab === 'albums' && randomAlbums.length === 0) loadRandomAlbums();
if (activeTab === 'artists' && artists.length === 0) loadArtists();
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [activeTab]);
// Live album search with 300ms debounce
useEffect(() => {
if (activeTab !== 'albums') return;
const q = search.trim();
if (!q) { setAlbumSearchResults([]); return; }
setAlbumSearchLoading(true);
const timer = setTimeout(async () => {
try {
const { albums } = await searchSubsonic(q, { albumCount: 20, artistCount: 0, songCount: 0 });
setAlbumSearchResults(albums);
} catch {
setAlbumSearchResults([]);
} finally {
setAlbumSearchLoading(false);
}
}, 300);
return () => { clearTimeout(timer); setAlbumSearchLoading(false); };
}, [search, activeTab]);
const toggleArtistExpand = useCallback(async (artistId: string) => {
setExpandedArtistIds(prev => {
const next = new Set(prev);
if (next.has(artistId)) { next.delete(artistId); return next; }
next.add(artistId);
return next;
});
if (!artistAlbumsMap.has(artistId)) {
setLoadingArtistIds(prev => new Set(prev).add(artistId));
try {
const { albums } = await getArtist(artistId);
setArtistAlbumsMap(prev => new Map(prev).set(artistId, albums));
} finally {
setLoadingArtistIds(prev => { const n = new Set(prev); n.delete(artistId); return n; });
}
}
}, [artistAlbumsMap]);
return {
playlists, randomAlbums, albumSearchResults, albumSearchLoading,
artists, loadingBrowser,
expandedArtistIds, artistAlbumsMap, loadingArtistIds,
toggleArtistExpand,
};
}
+64
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@@ -0,0 +1,64 @@
import { useCallback, useEffect, useRef } from 'react';
import { invoke } from '@tauri-apps/api/core';
import type { TFunction } from 'i18next';
import { useDeviceSyncStore, type DeviceSyncSource } from '../store/deviceSyncStore';
import { showToast } from '../utils/toast';
export interface DeviceSyncDeviceScanResult {
scanDevice: () => Promise<void>;
}
export function useDeviceSyncDeviceScan(
targetDir: string | null,
sourcesLength: number,
driveDetected: boolean,
t: TFunction,
): DeviceSyncDeviceScanResult {
const setDeviceFilePaths = useDeviceSyncStore.getState().setDeviceFilePaths;
const setScanning = useDeviceSyncStore.getState().setScanning;
const scanDevice = useCallback(async () => {
if (!targetDir || sourcesLength === 0) {
setDeviceFilePaths([]);
return;
}
setScanning(true);
try {
const files = await invoke<string[]>('list_device_dir_files', { dir: targetDir });
setDeviceFilePaths(files);
} catch {
setDeviceFilePaths([]);
} finally {
setScanning(false);
}
}, [targetDir, sourcesLength, setDeviceFilePaths, setScanning]);
// Scan device on mount and when targetDir changes
useEffect(() => { scanDevice(); }, [scanDevice]);
// Auto-import manifest when page loads and drive is already connected
const manifestImportedRef = useRef(false);
useEffect(() => {
if (!targetDir || !driveDetected || manifestImportedRef.current) return;
manifestImportedRef.current = true;
invoke<{ version: number; sources: DeviceSyncSource[] } | null>(
'read_device_manifest', { destDir: targetDir }
).then(manifest => {
if (manifest?.sources?.length) {
useDeviceSyncStore.getState().clearSources();
manifest.sources.forEach(s => useDeviceSyncStore.getState().addSource(s));
showToast(t('deviceSync.manifestImported', { count: manifest.sources.length }), 4000, 'info');
}
}).catch(() => {});
}, [targetDir, driveDetected, t]);
// Clear device file list and reset import flag when stick is unplugged
useEffect(() => {
if (!driveDetected) {
setDeviceFilePaths([]);
manifestImportedRef.current = false;
}
}, [driveDetected, setDeviceFilePaths]);
return { scanDevice };
}
+75
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@@ -0,0 +1,75 @@
import { useEffect } from 'react';
import { invoke } from '@tauri-apps/api/core';
import { listen } from '@tauri-apps/api/event';
import type { TFunction } from 'i18next';
import { useDeviceSyncJobStore } from '../store/deviceSyncJobStore';
import { useDeviceSyncStore } from '../store/deviceSyncStore';
import { showToast } from '../utils/toast';
import { trackToSyncInfo } from '../utils/deviceSyncHelpers';
import { fetchTracksForSource } from '../utils/fetchTracksForSource';
export function useDeviceSyncJobEvents(
t: TFunction,
scanDevice: () => Promise<void>,
): void {
useEffect(() => {
const jobStore = useDeviceSyncJobStore.getState;
const unlistenProgress = listen<{
jobId: string; done: number; skipped: number; failed: number; total: number;
}>('device:sync:progress', ({ payload }) => {
const current = jobStore();
if (current.jobId && payload.jobId === current.jobId) {
useDeviceSyncJobStore.getState().updateProgress(
payload.done, payload.skipped, payload.failed
);
}
});
const unlistenComplete = listen<{
jobId: string; done: number; skipped: number; failed: number; total: number; cancelled?: boolean;
}>('device:sync:complete', ({ payload }) => {
const current = jobStore();
if (current.jobId && payload.jobId === current.jobId) {
if (payload.cancelled) {
useDeviceSyncJobStore.getState().complete(payload.done, payload.skipped, payload.failed);
// status is already 'cancelled' from the button click; complete() would overwrite it — restore it
useDeviceSyncJobStore.getState().cancel();
} else {
useDeviceSyncJobStore.getState().complete(payload.done, payload.skipped, payload.failed);
showToast(
t('deviceSync.syncResult', {
done: payload.done, skipped: payload.skipped, total: payload.total
}),
5000, 'info'
);
// Write manifest so another machine can read the synced sources from the stick
const { targetDir: dir, sources: srcs } = useDeviceSyncStore.getState();
if (dir) {
invoke('write_device_manifest', { destDir: dir, sources: srcs }).catch(() => {});
// For every playlist source, write an Extended-M3U next to the
// playlist-folder tracks. Context carries the playlist name +
// per-track index so the filenames match the files we just synced.
const playlistSources = srcs.filter(s => s.type === 'playlist');
playlistSources.forEach(async playlist => {
try {
const tracks = await fetchTracksForSource(playlist);
await invoke('write_playlist_m3u8', {
destDir: dir,
playlistName: playlist.name,
tracks: tracks.map((tr, idx) => trackToSyncInfo(tr, '', { name: playlist.name, index: idx + 1 })),
});
} catch { /* m3u8 failure is non-fatal — skip silently */ }
});
}
}
// Re-scan the device after sync completes (cancelled or not)
scanDevice();
}
});
return () => {
unlistenProgress.then(f => f());
unlistenComplete.then(f => f());
};
}, [t, scanDevice]);
}
+18 -207
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@@ -1,12 +1,7 @@
import { getPlaylists } from '../api/subsonicPlaylists';
import { buildDownloadUrl } from '../api/subsonicStreamUrl';
import { getArtists, getArtist } from '../api/subsonicArtists';
import { getAlbumList } from '../api/subsonicLibrary';
import type { SubsonicSong, SubsonicAlbum, SubsonicPlaylist, SubsonicArtist } from '../api/subsonicTypes';
import React, { useEffect, useState, useRef, useCallback, useMemo } from 'react';
import type { SubsonicSong } from '../api/subsonicTypes';
import React, { useState, useCallback, useMemo } from 'react';
import { invoke } from '@tauri-apps/api/core';
import { listen } from '@tauri-apps/api/event';
import { open as openDialog } from '@tauri-apps/plugin-dialog';
import {
HardDriveUpload, FolderOpen, Loader2,
ListMusic, Disc3, Users, CheckCircle2, AlertCircle, Clock,
@@ -16,18 +11,19 @@ import CustomSelect from '../components/CustomSelect';
import { useTranslation } from 'react-i18next';
import { useDeviceSyncStore, DeviceSyncSource } from '../store/deviceSyncStore';
import { useDeviceSyncJobStore } from '../store/deviceSyncJobStore';
import { search as searchSubsonic } from '../api/subsonicSearch';
import { showToast } from '../utils/toast';
import { IS_WINDOWS } from '../utils/platform';
import {
formatBytes, trackToSyncInfo,
formatBytes,
type SourceTab,
} from '../utils/deviceSyncHelpers';
import { fetchTracksForSource } from '../utils/fetchTracksForSource';
import BrowserRow from '../components/deviceSync/BrowserRow';
import { useDeviceSyncDrives } from '../hooks/useDeviceSyncDrives';
import { useDeviceSyncSourceStatuses } from '../hooks/useDeviceSyncSourceStatuses';
import { useDeviceSyncBrowser } from '../hooks/useDeviceSyncBrowser';
import { useDeviceSyncDeviceScan } from '../hooks/useDeviceSyncDeviceScan';
import { useDeviceSyncJobEvents } from '../hooks/useDeviceSyncJobEvents';
import {
runDeviceSyncMigrationPreview,
runDeviceSyncMigrationExecute,
@@ -38,6 +34,7 @@ import {
runDeviceSyncExecute,
type SyncDelta,
} from '../utils/runDeviceSyncExecution';
import { runDeviceSyncChooseFolder } from '../utils/runDeviceSyncChooseFolder';
// ─── component ───────────────────────────────────────────────────────────────
@@ -64,16 +61,6 @@ export default function DeviceSync() {
const [activeTab, setActiveTab] = useState<SourceTab>('albums');
const [search, setSearch] = useState('');
const [playlists, setPlaylists] = useState<SubsonicPlaylist[]>([]);
const [randomAlbums, setRandomAlbums] = useState<SubsonicAlbum[]>([]);
const [albumSearchResults, setAlbumSearchResults] = useState<SubsonicAlbum[]>([]);
const [albumSearchLoading, setAlbumSearchLoading] = useState(false);
const [artists, setArtists] = useState<SubsonicArtist[]>([]);
const [loadingBrowser, setLoadingBrowser] = useState(false);
const [expandedArtistIds, setExpandedArtistIds] = useState<Set<string>>(new Set());
const [artistAlbumsMap, setArtistAlbumsMap] = useState<Map<string, SubsonicAlbum[]>>(new Map());
const [loadingArtistIds, setLoadingArtistIds] = useState<Set<string>>(new Set());
// ─── Removable drive detection ──────────────────────────────────────────
const { drives, drivesLoading, activeDrive, driveDetected, refreshDrives } =
useDeviceSyncDrives(targetDir);
@@ -92,50 +79,8 @@ export default function DeviceSync() {
const isRunning = jobStatus === 'running';
// ─── Device scan on mount ───────────────────────────────────────────────
const scanDevice = useCallback(async () => {
if (!targetDir || sources.length === 0) {
setDeviceFilePaths([]);
return;
}
setScanning(true);
try {
const files = await invoke<string[]>('list_device_dir_files', { dir: targetDir });
setDeviceFilePaths(files);
} catch {
setDeviceFilePaths([]);
} finally {
setScanning(false);
}
}, [targetDir, sources.length]);
// Scan device on mount and when targetDir changes
useEffect(() => { scanDevice(); }, [scanDevice]);
// Auto-import manifest when page loads and drive is already connected
const manifestImportedRef = useRef(false);
useEffect(() => {
if (!targetDir || !driveDetected || manifestImportedRef.current) return;
manifestImportedRef.current = true;
invoke<{ version: number; sources: DeviceSyncSource[] } | null>(
'read_device_manifest', { destDir: targetDir }
).then(manifest => {
if (manifest?.sources?.length) {
useDeviceSyncStore.getState().clearSources();
manifest.sources.forEach(s => useDeviceSyncStore.getState().addSource(s));
showToast(t('deviceSync.manifestImported', { count: manifest.sources.length }), 4000, 'info');
}
}).catch(() => {});
}, [targetDir, driveDetected, t]);
// Clear device file list and reset import flag when stick is unplugged
useEffect(() => {
if (!driveDetected) {
setDeviceFilePaths([]);
manifestImportedRef.current = false;
}
}, [driveDetected]);
// ─── Device scan + manifest auto-import ─────────────────────────────────
const { scanDevice } = useDeviceSyncDeviceScan(targetDir, sources.length, driveDetected, t);
// Source status (path map + derived synced/pending/deletion)
const { sourcePathsMap, sourceStatuses } = useDeviceSyncSourceStatuses(
@@ -172,129 +117,15 @@ export default function DeviceSync() {
}, [sources, pendingDeletion, sourceStatuses, sourcePathsMap, deviceFilePaths, markForDeletion, removeSource, unmarkDeletion, addSource]);
// ─── Listen for background sync events ──────────────────────────────────
useDeviceSyncJobEvents(t, scanDevice);
useEffect(() => {
const jobStore = useDeviceSyncJobStore.getState;
const unlistenProgress = listen<{
jobId: string; done: number; skipped: number; failed: number; total: number;
}>('device:sync:progress', ({ payload }) => {
const current = jobStore();
if (current.jobId && payload.jobId === current.jobId) {
useDeviceSyncJobStore.getState().updateProgress(
payload.done, payload.skipped, payload.failed
);
}
});
const unlistenComplete = listen<{
jobId: string; done: number; skipped: number; failed: number; total: number; cancelled?: boolean;
}>('device:sync:complete', ({ payload }) => {
const current = jobStore();
if (current.jobId && payload.jobId === current.jobId) {
if (payload.cancelled) {
useDeviceSyncJobStore.getState().complete(payload.done, payload.skipped, payload.failed);
// status is already 'cancelled' from the button click; complete() would overwrite it — restore it
useDeviceSyncJobStore.getState().cancel();
} else {
useDeviceSyncJobStore.getState().complete(payload.done, payload.skipped, payload.failed);
showToast(
t('deviceSync.syncResult', {
done: payload.done, skipped: payload.skipped, total: payload.total
}),
5000, 'info'
);
// Write manifest so another machine can read the synced sources from the stick
const { targetDir: dir, sources: srcs } = useDeviceSyncStore.getState();
if (dir) {
invoke('write_device_manifest', { destDir: dir, sources: srcs }).catch(() => {});
// For every playlist source, write an Extended-M3U next to the
// playlist-folder tracks. Context carries the playlist name +
// per-track index so the filenames match the files we just synced.
const playlistSources = srcs.filter(s => s.type === 'playlist');
playlistSources.forEach(async playlist => {
try {
const tracks = await fetchTracksForSource(playlist);
await invoke('write_playlist_m3u8', {
destDir: dir,
playlistName: playlist.name,
tracks: tracks.map((tr, idx) => trackToSyncInfo(tr, '', { name: playlist.name, index: idx + 1 })),
});
} catch { /* m3u8 failure is non-fatal — skip silently */ }
});
}
}
// Re-scan the device after sync completes (cancelled or not)
scanDevice();
}
});
return () => {
unlistenProgress.then(f => f());
unlistenComplete.then(f => f());
};
}, [t, scanDevice]);
// Load browser data when tab switches
useEffect(() => {
setSearch('');
if (activeTab === 'playlists' && playlists.length === 0) loadPlaylists();
if (activeTab === 'albums' && randomAlbums.length === 0) loadRandomAlbums();
if (activeTab === 'artists' && artists.length === 0) loadArtists();
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [activeTab]);
// Live album search with 300ms debounce
useEffect(() => {
if (activeTab !== 'albums') return;
const q = search.trim();
if (!q) { setAlbumSearchResults([]); return; }
setAlbumSearchLoading(true);
const timer = setTimeout(async () => {
try {
const { albums } = await searchSubsonic(q, { albumCount: 20, artistCount: 0, songCount: 0 });
setAlbumSearchResults(albums);
} catch {
setAlbumSearchResults([]);
} finally {
setAlbumSearchLoading(false);
}
}, 300);
return () => { clearTimeout(timer); setAlbumSearchLoading(false); };
}, [search, activeTab]);
const loadPlaylists = useCallback(async () => {
setLoadingBrowser(true);
try { setPlaylists(await getPlaylists()); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
const loadRandomAlbums = useCallback(async () => {
setLoadingBrowser(true);
try { setRandomAlbums(await getAlbumList('random', 10)); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
const loadArtists = useCallback(async () => {
setLoadingBrowser(true);
try { setArtists(await getArtists()); } catch { /* ignore */ }
finally { setLoadingBrowser(false); }
}, []);
const toggleArtistExpand = useCallback(async (artistId: string) => {
setExpandedArtistIds(prev => {
const next = new Set(prev);
if (next.has(artistId)) { next.delete(artistId); return next; }
next.add(artistId);
return next;
});
if (!artistAlbumsMap.has(artistId)) {
setLoadingArtistIds(prev => new Set(prev).add(artistId));
try {
const { albums } = await getArtist(artistId);
setArtistAlbumsMap(prev => new Map(prev).set(artistId, albums));
} finally {
setLoadingArtistIds(prev => { const n = new Set(prev); n.delete(artistId); return n; });
}
}
}, [artistAlbumsMap]);
// Browser (playlists / albums / artists tabs + their loaders + debounced search)
const {
playlists, randomAlbums, albumSearchResults, albumSearchLoading,
artists, loadingBrowser,
expandedArtistIds, artistAlbumsMap, loadingArtistIds,
toggleArtistExpand,
} = useDeviceSyncBrowser(activeTab, search, () => setSearch(''));
const q = search.toLowerCase();
const filteredPlaylists = useMemo(() => playlists.filter(p => p.name.toLowerCase().includes(q)), [playlists, q]);
@@ -321,27 +152,7 @@ export default function DeviceSync() {
setMigrationOldTemplate('');
};
const handleChooseFolder = async () => {
const sel = await openDialog({ directory: true, multiple: false, title: t('deviceSync.chooseFolder') });
if (sel) {
const dir = sel as string;
setTargetDir(dir);
// If the device has a psysonic-sync.json, always import it — replacing any
// sources from a previous device so switching sticks works correctly.
try {
const manifest = await invoke<{ version: number; sources: DeviceSyncSource[] } | null>(
'read_device_manifest', { destDir: dir }
);
if (manifest?.sources?.length) {
useDeviceSyncStore.getState().clearSources();
manifest.sources.forEach(s => useDeviceSyncStore.getState().addSource(s));
showToast(t('deviceSync.manifestImported', { count: manifest.sources.length }), 4000, 'info');
}
} catch { /* no manifest, that's fine */ }
// Trigger a device scan after folder change
setTimeout(() => scanDevice(), 100);
}
};
const handleChooseFolder = () => runDeviceSyncChooseFolder({ t, setTargetDir, scanDevice });
// ─── Sync (non-blocking) ────────────────────────────────────────────────
+34
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@@ -0,0 +1,34 @@
import { invoke } from '@tauri-apps/api/core';
import { open as openDialog } from '@tauri-apps/plugin-dialog';
import type { TFunction } from 'i18next';
import { useDeviceSyncStore, type DeviceSyncSource } from '../store/deviceSyncStore';
import { showToast } from './toast';
export interface RunDeviceSyncChooseFolderDeps {
t: TFunction;
setTargetDir: (dir: string) => void;
scanDevice: () => Promise<void>;
}
export async function runDeviceSyncChooseFolder(deps: RunDeviceSyncChooseFolderDeps): Promise<void> {
const { t, setTargetDir, scanDevice } = deps;
const sel = await openDialog({ directory: true, multiple: false, title: t('deviceSync.chooseFolder') });
if (!sel) return;
const dir = sel as string;
setTargetDir(dir);
// If the device has a psysonic-sync.json, always import it — replacing any
// sources from a previous device so switching sticks works correctly.
try {
const manifest = await invoke<{ version: number; sources: DeviceSyncSource[] } | null>(
'read_device_manifest', { destDir: dir }
);
if (manifest?.sources?.length) {
useDeviceSyncStore.getState().clearSources();
manifest.sources.forEach(s => useDeviceSyncStore.getState().addSource(s));
showToast(t('deviceSync.manifestImported', { count: manifest.sources.length }), 4000, 'info');
}
} catch { /* no manifest, that's fine */ }
// Trigger a device scan after folder change
setTimeout(() => scanDevice(), 100);
}