245 lines
9.2 KiB
Dart
245 lines
9.2 KiB
Dart
import 'dart:io';
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import 'package:logging/logging.dart';
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import 'package:path/path.dart';
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import 'package:path_provider/path_provider.dart';
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import 'package:photos/models/file_load_result.dart';
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import 'package:photos/models/file_type.dart';
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import 'package:photos/models/location.dart';
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import 'package:photos/models/magic_metadata.dart';
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import 'package:photos/models/trash_file.dart';
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import 'package:sqflite/sqflite.dart';
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class TrashDB {
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static final _databaseName = "ente.trash.db";
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static final _databaseVersion = 1;
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static final Logger _logger = Logger("TrashDB");
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static final tableName = 'trash';
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static final columnUploadedFileID = 'uploaded_file_id';
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static final columnCollectionID = 'collection_id';
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static final columnOwnerID = 'owner_id';
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static final columnTrashUpdatedAt = 't_updated_at';
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static final columnTrashDeleteBy = 't_delete_by';
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static final columnEncryptedKey = 'encrypted_key';
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static final columnKeyDecryptionNonce = 'key_decryption_nonce';
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static final columnFileDecryptionHeader = 'file_decryption_header';
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static final columnThumbnailDecryptionHeader = 'thumbnail_decryption_header';
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static final columnLocalID = 'local_id';
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static final columnTitle = 'title';
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static final columnDeviceFolder = 'device_folder';
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static final columnLatitude = 'latitude';
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static final columnLongitude = 'longitude';
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static final columnFileType = 'file_type';
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static final columnFileSubType = 'file_sub_type';
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static final columnDuration = 'duration';
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static final columnHash = 'hash';
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static final columnMetadataVersion = 'metadata_version';
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static final columnModificationTime = 'modification_time';
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static final columnCreationTime = 'creation_time';
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static final columnMMdEncodedJson = 'mmd_encoded_json';
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static final columnMMdVersion = 'mmd_ver';
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static final columnMMdVisibility = 'mmd_visibility';
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Future _onCreate(Database db, int version) async {
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await db.execute('''
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CREATE TABLE $tableName (
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$columnUploadedFileID INTEGER PRIMARY KEY NOT NULL,
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$columnCollectionID INTEGER NOT NULL,
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$columnOwnerID INTEGER,
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$columnTrashUpdatedAt INTEGER NOT NULL,
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$columnTrashDeleteBy INTEGER NOT NULL,
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$columnEncryptedKey TEXT,
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$columnKeyDecryptionNonce TEXT,
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$columnFileDecryptionHeader TEXT,
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$columnThumbnailDecryptionHeader TEXT,
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$columnLocalID TEXT,
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$columnTitle TEXT NOT NULL,
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$columnDeviceFolder TEXT,
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$columnLatitude REAL,
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$columnLongitude REAL,
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$columnFileType INTEGER,
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$columnCreationTime INTEGER NOT NULL,
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$columnModificationTime INTEGER NOT NULL,
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$columnFileSubType INTEGER,
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$columnDuration INTEGER,
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$columnHash TEXT,
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$columnMetadataVersion INTEGER,
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$columnMMdEncodedJson TEXT DEFAULT '{}',
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$columnMMdVersion INTEGER DEFAULT 0,
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$columnMMdVisibility INTEGER DEFAULT $kVisibilityVisible
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);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnCreationTime);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashDeleteBy);
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CREATE INDEX IF NOT EXISTS creation_time_index ON $tableName($columnTrashUpdatedAt);
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''');
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}
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TrashDB._privateConstructor();
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static final TrashDB instance = TrashDB._privateConstructor();
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// only have a single app-wide reference to the database
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static Future<Database> _dbFuture;
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Future<Database> get database async {
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// lazily instantiate the db the first time it is accessed
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_dbFuture ??= _initDatabase();
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return _dbFuture;
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}
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// this opens the database (and creates it if it doesn't exist)
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Future<Database> _initDatabase() async {
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Directory documentsDirectory = await getApplicationDocumentsDirectory();
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String path = join(documentsDirectory.path, _databaseName);
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_logger.info("DB path " + path);
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return await openDatabase(
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path,
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version: _databaseVersion,
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onCreate: _onCreate,
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);
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}
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Future<void> clearTable() async {
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final db = await instance.database;
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await db.delete(tableName);
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}
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Future<void> insertMultiple(List<TrashFile> trashFiles) async {
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final startTime = DateTime.now();
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final db = await instance.database;
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var batch = db.batch();
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int batchCounter = 0;
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for (TrashFile trash in trashFiles) {
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if (batchCounter == 400) {
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await batch.commit(noResult: true);
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batch = db.batch();
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batchCounter = 0;
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}
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batch.insert(
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tableName,
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_getRowForTrash(trash),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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batchCounter++;
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}
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await batch.commit(noResult: true);
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final endTime = DateTime.now();
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final duration = Duration(
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microseconds:
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endTime.microsecondsSinceEpoch - startTime.microsecondsSinceEpoch);
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_logger.info("Batch insert of " +
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trashFiles.length.toString() +
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" took " +
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duration.inMilliseconds.toString() +
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"ms.");
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}
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Future<int> insert(TrashFile trash) async {
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final db = await instance.database;
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return db.insert(
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tableName,
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_getRowForTrash(trash),
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conflictAlgorithm: ConflictAlgorithm.replace,
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);
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}
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Future<int> delete(List<int> uploadedFileIDs) async {
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final db = await instance.database;
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return db.delete(
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tableName,
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where: '$columnUploadedFileID IN (${uploadedFileIDs.join(', ')})',
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);
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}
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Future<FileLoadResult> getTrashedFiles(int startTime, int endTime,
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{int limit, bool asc}) async {
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final db = await instance.database;
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final order = (asc ?? false ? 'ASC' : 'DESC');
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final results = await db.query(
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tableName,
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where: '$columnCreationTime >= ? AND $columnCreationTime <= ?',
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whereArgs: [startTime, endTime],
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orderBy:
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'$columnCreationTime ' + order + ', $columnModificationTime ' + order,
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limit: limit,
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);
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final files = _convertToFiles(results);
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return FileLoadResult(files, files.length == limit);
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}
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List<TrashFile> _convertToFiles(List<Map<String, dynamic>> results) {
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final List<TrashFile> trashedFiles = [];
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for (final result in results) {
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trashedFiles.add(_getTrashFromRow(result));
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}
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return trashedFiles;
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}
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TrashFile _getTrashFromRow(Map<String, dynamic> row) {
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final trashFile = TrashFile();
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trashFile.updateAt = row[columnTrashUpdatedAt];
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trashFile.deleteBy = row[columnTrashDeleteBy];
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trashFile.uploadedFileID =
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row[columnUploadedFileID] == -1 ? null : row[columnUploadedFileID];
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trashFile.generatedID = -1 * trashFile.uploadedFileID;
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trashFile.localID = row[columnLocalID];
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trashFile.ownerID = row[columnOwnerID];
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trashFile.collectionID =
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row[columnCollectionID] == -1 ? null : row[columnCollectionID];
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trashFile.title = row[columnTitle];
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trashFile.deviceFolder = row[columnDeviceFolder];
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if (row[columnLatitude] != null && row[columnLongitude] != null) {
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trashFile.location = Location(row[columnLatitude], row[columnLongitude]);
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}
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trashFile.fileType = getFileType(row[columnFileType]);
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trashFile.creationTime = row[columnCreationTime];
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trashFile.modificationTime = row[columnModificationTime];
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trashFile.encryptedKey = row[columnEncryptedKey];
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trashFile.keyDecryptionNonce = row[columnKeyDecryptionNonce];
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trashFile.fileDecryptionHeader = row[columnFileDecryptionHeader];
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trashFile.thumbnailDecryptionHeader = row[columnThumbnailDecryptionHeader];
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trashFile.fileSubType = row[columnFileSubType] ?? -1;
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trashFile.duration = row[columnDuration] ?? 0;
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trashFile.hash = row[columnHash];
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trashFile.metadataVersion = row[columnMetadataVersion] ?? 0;
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trashFile.mMdVersion = row[columnMMdVersion] ?? 0;
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trashFile.mMdEncodedJson = row[columnMMdEncodedJson] ?? '{}';
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return trashFile;
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}
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Map<String, dynamic> _getRowForTrash(TrashFile trash) {
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final row = <String, dynamic>{};
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row[columnTrashUpdatedAt] = trash.updateAt;
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row[columnTrashDeleteBy] = trash.deleteBy;
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row[columnUploadedFileID] = trash.uploadedFileID;
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row[columnCollectionID] = trash.collectionID;
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row[columnOwnerID] = trash.ownerID;
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row[columnLocalID] = trash.localID;
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row[columnTitle] = trash.title;
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row[columnDeviceFolder] = trash.deviceFolder;
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if (trash.location != null) {
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row[columnLatitude] = trash.location.latitude;
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row[columnLongitude] = trash.location.longitude;
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}
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row[columnFileType] = getInt(trash.fileType);
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row[columnCreationTime] = trash.creationTime;
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row[columnModificationTime] = trash.modificationTime;
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row[columnEncryptedKey] = trash.encryptedKey;
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row[columnKeyDecryptionNonce] = trash.keyDecryptionNonce;
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row[columnFileDecryptionHeader] = trash.fileDecryptionHeader;
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row[columnThumbnailDecryptionHeader] = trash.thumbnailDecryptionHeader;
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row[columnFileSubType] = trash.fileSubType ?? -1;
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row[columnDuration] = trash.duration ?? 0;
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row[columnHash] = trash.hash;
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row[columnMetadataVersion] = trash.metadataVersion;
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row[columnMMdVersion] = trash.mMdVersion ?? 0;
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row[columnMMdEncodedJson] = trash.mMdEncodedJson ?? '{}';
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row[columnMMdVisibility] =
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trash.magicMetadata?.visibility ?? kVisibilityVisible;
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return row;
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}
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}
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