import 'dart:io';
import 'dart:typed_data';

import 'package:dio/dio.dart';

typedef VideoBatchUploadProgressCallback = void Function(double progress);

typedef VideoBatchUploadUploadTask = Future<String> Function(
  VideoBatchUploadTask task,
  VideoBatchUploadProgressCallback onProgress,
);

typedef VideoBatchUploadSaveTask = Future<bool> Function(
  VideoBatchUploadTask task,
);

typedef VideoBatchUploadBatchSaveTask = Future<bool> Function(
  List<VideoBatchUploadTask> tasks,
);

enum VideoBatchUploadAssetType {
  image,
  video,
}

extension VideoBatchUploadAssetTypeText on VideoBatchUploadAssetType {
  String get label {
    switch (this) {
      case VideoBatchUploadAssetType.image:
        return '图片';
      case VideoBatchUploadAssetType.video:
        return '视频';
    }
  }

  String get unit {
    switch (this) {
      case VideoBatchUploadAssetType.image:
        return '张';
      case VideoBatchUploadAssetType.video:
        return '个';
    }
  }

  String get localLabel {
    switch (this) {
      case VideoBatchUploadAssetType.image:
        return '本地图片';
      case VideoBatchUploadAssetType.video:
        return '本地视频';
    }
  }

  String get defaultFileName {
    switch (this) {
      case VideoBatchUploadAssetType.image:
        return 'image.jpg';
      case VideoBatchUploadAssetType.video:
        return 'video.mp4';
    }
  }
}

enum VideoBatchUploadStatus {
  waiting,
  uploading,
  uploaded,
  saving,
  completed,
  failed,
}

extension VideoBatchUploadStatusText on VideoBatchUploadStatus {
  String get label {
    switch (this) {
      case VideoBatchUploadStatus.waiting:
        return '等待中';
      case VideoBatchUploadStatus.uploading:
        return '上传中';
      case VideoBatchUploadStatus.uploaded:
        return '上传成功';
      case VideoBatchUploadStatus.saving:
        return '入库中';
      case VideoBatchUploadStatus.completed:
        return '已完成';
      case VideoBatchUploadStatus.failed:
        return '失败';
    }
  }
}

class VideoBatchUploadTask {
  VideoBatchUploadTask({
    required this.id,
    this.assetType = VideoBatchUploadAssetType.video,
    required this.file,
    required this.fileName,
    required this.fileSize,
    required this.duration,
    this.thumbnail,
  });

  final String id;
  final VideoBatchUploadAssetType assetType;
  final File file;
  final String fileName;
  final int fileSize;
  final int duration;
  final Uint8List? thumbnail;

  VideoBatchUploadStatus status = VideoBatchUploadStatus.waiting;
  double progress = 0;
  String uploadUrl = '';
  String errorMessage = '';
  CancelToken? cancelToken;

  String get ossUrl => uploadUrl;

  set ossUrl(String value) {
    uploadUrl = value;
  }

  bool get isActive =>
      status == VideoBatchUploadStatus.waiting ||
      status == VideoBatchUploadStatus.uploading ||
      status == VideoBatchUploadStatus.uploaded ||
      status == VideoBatchUploadStatus.saving;

  bool get canRetry => status == VideoBatchUploadStatus.failed;

  bool get canRemove =>
      status == VideoBatchUploadStatus.waiting ||
      status == VideoBatchUploadStatus.completed ||
      status == VideoBatchUploadStatus.failed;

  String get fileSizeText {
    if (fileSize <= 0) {
      return '';
    }
    final double mb = fileSize / 1024 / 1024;
    if (mb >= 1) {
      return '${mb.toStringAsFixed(1)}MB';
    }
    final double kb = fileSize / 1024;
    return '${kb.toStringAsFixed(0)}KB';
  }

  String get durationText {
    if (duration <= 0) {
      return '';
    }
    final int minutes = duration ~/ 60;
    final int seconds = duration % 60;
    return '${minutes.toString().padLeft(2, '0')}:${seconds.toString().padLeft(2, '0')}';
  }

  Map<String, dynamic> toVideoPayload({
    String urlKey = 'fileURL',
    String fileNameKey = 'fileName',
    String durationKey = 'duration',
  }) {
    return <String, dynamic>{
      urlKey: uploadUrl,
      fileNameKey: fileName,
      if (duration > 0) durationKey: duration,
    };
  }

  Map<String, dynamic> toLibraryVideoPayload() {
    return toVideoPayload();
  }

  String toLibraryImageURL() {
    return uploadUrl;
  }
}