load local files

mobile/services/localFileRegistry.ts

@@ -0,0 +1,82 @@
+import { createMMKV } from 'react-native-mmkv';
+import { LocalFileEntry, SyncStatus } from '../types';
+
+const storage = createMMKV({ id: 'vaultdrop-local-files' });
+
+const INDEX_KEY = 'local_files_index';
+
+function getAllIds(): string[] {
+  const raw = storage.getString(INDEX_KEY);
+  if (!raw) return [];
+  return JSON.parse(raw) as string[];
+}
+
+function setAllIds(ids: string[]) {
+  storage.set(INDEX_KEY, JSON.stringify(ids));
+}
+
+function entryKey(id: string): string {
+  return `local_file_${id}`;
+}
+
+export const localFileRegistry = {
+  register(entry: LocalFileEntry) {
+    storage.set(entryKey(entry.id), JSON.stringify(entry));
+    const ids = getAllIds();
+    if (!ids.includes(entry.id)) {
+      setAllIds([entry.id, ...ids]);
+    }
+  },
+
+  get(id: string): LocalFileEntry | undefined {
+    const raw = storage.getString(entryKey(id));
+    if (!raw) return undefined;
+    return JSON.parse(raw) as LocalFileEntry;
+  },
+
+  getByBackendId(backendId: string): LocalFileEntry | undefined {
+    const ids = getAllIds();
+    for (const id of ids) {
+      const entry = this.get(id);
+      if (entry?.backendFileId === backendId) return entry;
+    }
+    return undefined;
+  },
+
+  getAll(): LocalFileEntry[] {
+    const ids = getAllIds();
+    return ids
+      .map((id) => this.get(id))
+      .filter((e): e is LocalFileEntry => e !== undefined);
+  },
+
+  update(id: string, updates: Partial<LocalFileEntry>) {
+    const existing = this.get(id);
+    if (!existing) return;
+    const updated = { ...existing, ...updates };
+    storage.set(entryKey(id), JSON.stringify(updated));
+  },
+
+  updateSyncStatus(id: string, syncStatus: SyncStatus) {
+    this.update(id, { syncStatus });
+  },
+
+  markAsCloudOnly(id: string) {
+    this.update(id, { syncStatus: 'cloud', localUri: '' });
+  },
+
+  remove(id: string) {
+    storage.remove(entryKey(id));
+    const ids = getAllIds().filter((i) => i !== id);
+    setAllIds(ids);
+  },
+
+  removeByBackendId(backendId: string) {
+    const entry = this.getByBackendId(backendId);
+    if (entry) this.remove(entry.id);
+  },
+
+  count(): number {
+    return getAllIds().length;
+  },
+};