[mob][photos] Functions to get embeddings of specific files

mobile/lib/db/ml/clip_db.dart

@@ -17,6 +17,21 @@ extension ClipDB on MLDataDB {
     return _convertToVectors(results);
   }
 
+  Future<Map<int, EmbeddingVector>> getClipVectorsForFileIDs(
+    Iterable<int> fileIDs,
+  ) async {
+    final db = await MLDataDB.instance.asyncDB;
+    final results = await db.getAll(
+      'SELECT * FROM $clipTable WHERE $fileIDColumn IN (${fileIDs.join(", ")})',
+    );
+    final Map<int, EmbeddingVector> embeddings = {};
+    for (final result in results) {
+      final embedding = _getVectorFromRow(result);
+      embeddings[embedding.fileID] = embedding;
+    }
+    return embeddings;
+  }
+
   // Get indexed FileIDs
   Future<Map<int, int>> clipIndexedFileWithVersion() async {
     final db = await MLDataDB.instance.asyncDB;

mobile/lib/db/ml/db.dart

@@ -400,6 +400,28 @@ class MLDataDB {
     return maps.map((e) => mapRowToFace(e)).toList();
   }
 
+  Future<Map<int, List<Face>>> getFacesForFileIDs(
+    Iterable<int> fileUploadIDs,
+  ) async {
+    final db = await instance.asyncDB;
+    final List<Map<String, dynamic>> maps = await db.getAll(
+      '''
+      SELECT * FROM $facesTable
+      WHERE $fileIDColumn IN (${fileUploadIDs.map((id) => "'$id'").join(",")})
+    ''',
+    );
+    if (maps.isEmpty) {
+      return {};
+    }
+    final result = <int, List<Face>>{};
+    for (final map in maps) {
+      final face = mapRowToFace(map);
+      final fileID = map[fileIDColumn] as int;
+      result.putIfAbsent(fileID, () => <Face>[]).add(face);
+    }
+    return result;
+  }
+
   Future<Map<String, Iterable<String>>> getClusterToFaceIDs(
     Set<String> clusterIDs,
   ) async {