import 'dart:async';
import 'dart:io';
import 'package:flutter/foundation.dart';
import 'package:get/get.dart';
import 'package:photo_gallery/photo_gallery.dart';
import 'package:video_thumbnail/video_thumbnail.dart';
import '../controller/gallery_controller.dart';

enum MediaType { image, video }

class MediaFile {
  late Medium medium;
  MediumType? type;
  Uint8List? thumbnail;
  Uint8List? data;
  late String id;
  bool thumbnailFailed = false;
  File? file;
  MediaFile({required this.medium}) {
    type = medium.mediumType;
    id = medium.id;
  }
  MediaFile.file(
      {required this.id, required this.file, required MediaType type}) {
    this.type = type == MediaType.image ? MediumType.image : MediumType.video;
    medium = Medium(id: id);
  }

  Future<Uint8List?> getThumbnail() async {
    try {
      if (file != null) {
        thumbnail = await VideoThumbnail.thumbnailData(
          video: file!.path,
          imageFormat: ImageFormat.JPEG,
          maxWidth:
              128, // specify the width of the thumbnail, let the height auto-scaled to keep the source aspect ratio
          quality: 25,
        );
      } else {
        thumbnail =
            Uint8List.fromList(await medium.getThumbnail(highQuality: true));
      }
    } catch (e) {
      thumbnailFailed = true;
    }
    return thumbnail;
  }

  Future<File> getFile() async {
    if (file == null) {
      file = await medium.getFile();
      return file!;
    } else {
      return file!;
    }
  }

  Future<Uint8List> getData() async {
    if (file == null) {
      await getFile();
    }
    data = await file!.readAsBytes();
    return data!;
  }

  void unselect({PhoneGalleryController? controller}) {
    if (controller != null) {
      controller.unselectMedia(this);
    } else {
      if (GetInstance().isRegistered<PhoneGalleryController>()) {
        Get.find<PhoneGalleryController>().unselectMedia(this);
      }
    }
  }

  void select({PhoneGalleryController? controller}) {
    if (controller != null) {
      controller.selectMedia(this);
    } else {
      if (GetInstance().isRegistered<PhoneGalleryController>()) {
        Get.find<PhoneGalleryController>().selectMedia(this);
      }
    }
  }

  bool? isSelected({PhoneGalleryController? controller}) {
    if (controller != null) {
      return controller.isSelectedMedia(this);
    } else {
      if (GetInstance().isRegistered<PhoneGalleryController>()) {
        return Get.find<PhoneGalleryController>().isSelectedMedia(this);
      } else {
        return null;
      }
    }
  }
}