import 'dart:typed_data';

import 'package:vid/us/vid_us_data_http_reader.dart';

import '../reader.dart';

class AsyncHttpVidDataReader extends AsyncVidDataReaderBase {
  late final VidUsDataHttpReader _inner;
  DownloadCallback? downloadCallback;

  AsyncHttpVidDataReader(
    String url, {
    this.downloadCallback,
    int minChunkSize = 65536,
    int connectTimeout = 30000,
    int receiveTimeout = 30000,
  }) : super(url, downloadCallback: downloadCallback) {
    _inner = VidUsDataHttpReader(
      url,
      downloadCallback: _onDownloadCallback,
      minChunkSize: minChunkSize,
      connectTimeout: connectTimeout,
      receiveTimeout: receiveTimeout,
    );
    setBytesProxy(_inner.toBytes);
  }

  @override
  Uint8List toBytes() {
    return _inner.toBytes();
  }

  @override
  void close() {
    _inner.close();
  }

  @override
  void startDownload() {}

  @override
  void skipToFrame(int index) {}

  void _onDownloadCallback(double progress, DownloadErrorException? error) {
    downloadCallback?.call(progress, error);
    final bufferedSize = (progress * totalSize).toInt();
    setBufferSize(bufferedSize);
  }

  @override
  Future<void> fetchFrames(int startIndex, int size,
      {bool isNeedReload = false}) async {}
}