part of '../neon_files.dart';

sealed class FilesTask {
  FilesTask({
    required this.path,
  });

  final List<String> path;

  @protected
  final streamController = StreamController<double>();

  /// Task progress in percent [0, 1].
  late final progress = streamController.stream.asBroadcastStream();
}

abstract class FilesDownloadTask extends FilesTask {
  FilesDownloadTask({required super.path});
}

class FilesDownloadFileTask extends FilesDownloadTask {
  FilesDownloadFileTask({
    required super.path,
    required this.file,
  });

  final File file;

  Future<void> execute(final NextcloudClient client) async {
    await client.webdav.getFile(
      Uri(pathSegments: path),
      file,
      onProgress: streamController.add,
    );
    await streamController.close();
  }
}

abstract class FilesUploadTask extends FilesTask {
  FilesUploadTask({required super.path});

  int get size;

  DateTime? get modified;
}

class FilesUploadFileTask extends FilesUploadTask {
  FilesUploadFileTask({
    required super.path,
    required this.file,
  });

  final File file;

  FileStat? _stat;
  FileStat get stat => _stat ??= file.statSync();

  @override
  int get size => stat.size;

  @override
  DateTime? get modified => stat.modified;

  Future<void> execute(final NextcloudClient client) async {
    await client.webdav.putFile(
      file,
      stat,
      Uri(pathSegments: path),
      lastModified: stat.modified,
      onProgress: streamController.add,
    );
    await streamController.close();
  }
}

class FilesUploadBytesTask extends FilesUploadTask {
  FilesUploadBytesTask({
    required super.path,
    required this.bytes,
    this.modified,
  });

  final Uint8List bytes;

  @override
  int get size => bytes.lengthInBytes;

  @override
  DateTime? modified;

  Future<void> execute(final NextcloudClient client) async {
    await client.webdav.putStream(
      Stream.value(bytes),
      Uri(pathSegments: path),
      lastModified: modified,
      contentLength: bytes.lengthInBytes,
      onProgress: (final progress) {
        streamController.add(progress);
      },
    );
  }
}