add files listing

mobile/services/downloadRegistry.ts

@@ -0,0 +1,98 @@
+import { createMMKV } from 'react-native-mmkv';
+import { FileDetectedEvent } from '../modules/expo-download-detect';
+
+const storage = createMMKV({ id: 'vaultdrop-download-registry' });
+
+const FILES_KEY = 'detected_files';
+
+export type DownloadRegistryEntry = {
+  id: string;
+  uri: string;
+  name: string;
+  mimeType: string;
+  size: number;
+  createdAt: number;
+  source: string;
+  detectedAt: number;
+};
+
+function getAllRaw(): DownloadRegistryEntry[] {
+  const raw = storage.getString(FILES_KEY);
+  if (!raw) return [];
+  return JSON.parse(raw) as DownloadRegistryEntry[];
+}
+
+function saveAll(entries: DownloadRegistryEntry[]) {
+  storage.set(FILES_KEY, JSON.stringify(entries));
+}
+
+export const downloadRegistry = {
+  getAll(): DownloadRegistryEntry[] {
+    return getAllRaw();
+  },
+
+  getById(id: string): DownloadRegistryEntry | undefined {
+    return getAllRaw().find((e) => e.id === id);
+  },
+
+  add(event: FileDetectedEvent): DownloadRegistryEntry | null {
+    const entries = getAllRaw();
+    if (entries.some((e) => e.id === event.id)) return null;
+
+    const entry: DownloadRegistryEntry = {
+      id: event.id,
+      uri: event.uri,
+      name: event.name,
+      mimeType: event.mimeType,
+      size: event.size,
+      createdAt: event.createdAt,
+      source: event.source,
+      detectedAt: Date.now(),
+    };
+
+    entries.push(entry);
+    saveAll(entries);
+    return entry;
+  },
+
+  addBatch(events: FileDetectedEvent[]): DownloadRegistryEntry[] {
+    const entries = getAllRaw();
+    const existingIds = new Set(entries.map((e) => e.id));
+    const newEntries: DownloadRegistryEntry[] = [];
+
+    for (const event of events) {
+      if (existingIds.has(event.id)) continue;
+      const entry: DownloadRegistryEntry = {
+        id: event.id,
+        uri: event.uri,
+        name: event.name,
+        mimeType: event.mimeType,
+        size: event.size,
+        createdAt: event.createdAt,
+        source: event.source,
+        detectedAt: Date.now(),
+      };
+      newEntries.push(entry);
+      existingIds.add(event.id);
+    }
+
+    if (newEntries.length > 0) {
+      saveAll([...entries, ...newEntries]);
+    }
+
+    return newEntries;
+  },
+
+  remove(id: string) {
+    const entries = getAllRaw().filter((e) => e.id !== id);
+    saveAll(entries);
+  },
+
+  clear() {
+    storage.remove(FILES_KEY);
+  },
+
+  count(): number {
+    return getAllRaw().length;
+  },
+};