import 'package:clean/base/base_controller.dart';
import 'package:clean/data/bean/photos_type.dart';
import 'package:clean/module/image_picker/image_picker_util.dart';
import 'package:clean/module/people_photo/photo_group.dart';
import 'package:clean/module/photo_preview/photo_preview_view.dart';
import 'package:get/get.dart';


class ScreenShotsController extends BaseController {
  late String titleName;
  final RxList<PhotoGroup> photoGroups = <PhotoGroup>[].obs;
  final RxDouble selectedFilesSize = 0.0.obs;
  RxInt selectedFileCount = 0.obs;
  final RxList<String> selectedPhotosIds = <String>[].obs;

  Future<void> updateSelectedFilesSize() async {
    double totalSize = 0;
    for (var group in photoGroups) {
      for (int i = 0; i < group.images.length; i++) {
        if (group.selectedImages[i]) {
          final file = await group.images[i].file;
          if (file != null) {
            totalSize += file.lengthSync();
          }
        }
      }
    }
    selectedFilesSize.value = totalSize / 1024; // Convert to KB
  }


  void toggleImageSelection(String groupTitle, int imageIndex) {
    final group = _getGroupByTitle(groupTitle);
    final image = group.images[imageIndex];
    final selected = !group.selectedImages[imageIndex];

    group.selectedImages[imageIndex] = selected;
    _updateSelectedScreenshotsPhotosIds(image.id, selected);

    group.isSelected.value = group.selectedImages.every((selected) => selected);

    updateSelectedFilesSize();
    selectedFileCount.value = selectedPhotosIds.length;
  }

  void clickImage(String groupTitle, int imageIndex) {
    final group = _getGroupByTitle(groupTitle);
    final image = group.images[imageIndex];
    print('clickImage $groupTitle $imageIndex');

    if (titleName == "Screenshots") {
      ImagePickerUtil.selectedScreenshotPhotosIds.assignAll(selectedPhotosIds);
      PhotoPreviewPage.start(PhotosType.screenshots, image.id);
    } else if (titleName == "Blurry") {
      ImagePickerUtil.selectedBlurryPhotosIds.assignAll(selectedPhotosIds);
      PhotoPreviewPage.start(PhotosType.blurryPhotos, image.id);
    }

  }


  void toggleGroupSelection(String groupTitle) {
    final group = _getGroupByTitle(groupTitle);
    final newValue = !group.isSelected.value;
    group.toggleSelectAll(newValue);

    for (var image in group.images) {
      _updateSelectedScreenshotsPhotosIds(image.id, newValue);
    }

    updateSelectedFilesSize();
    selectedFileCount.value = selectedPhotosIds.length;
  }

  // 通过标题获取照片组
  PhotoGroup _getGroupByTitle(String groupTitle) {
    return photoGroups.firstWhere((g) => g.title == groupTitle);
  }

  // // 通过photoGroup的images来获取图片组
  // PhotoGroup _getGroupByImages(List<AssetEntity> images) {
  //   return photoGroups.firstWhere((g) => g.images == images);
  // }

  void _updateSelectedScreenshotsPhotosIds(String photoId, bool isSelected) {
    if (isSelected) {
      selectedPhotosIds.add(photoId);
    } else {
      selectedPhotosIds.remove(photoId);
    }
  }

  void restoreSelections() {
    if (titleName == "Screenshots") {
      selectedPhotosIds.assignAll(ImagePickerUtil.selectedScreenshotPhotosIds);
    } else if (titleName == "Blurry") {
      selectedPhotosIds.assignAll(ImagePickerUtil.selectedBlurryPhotosIds);
    }

    // print('screenshots restoreSelections ${selectedPhotosIds.length}');
    for (var group in photoGroups) {
      for (int i = 0; i < group.images.length; i++) {
        if (selectedPhotosIds.contains(group.images[i].id)) {
          group.selectedImages[i] = true;
        }else {
          group.selectedImages[i] = false;
        }
      }
      group.isSelected.value =
          group.selectedImages.every((selected) => selected);
    }
    updateSelectedFilesSize();
    selectedFileCount.value = selectedPhotosIds.length;
  }

  @override
  void onInit() async {
    // TODO: implement onInit
    super.onInit();
    _getArgs();
    loadScreenshots();
    restoreSelections();
  }

  void _getArgs() {
    titleName = parameters?['titleName'];
  }

  void loadScreenshots() {
    // 清空现有数据
    photoGroups.clear();

    // 将 ImagePickerUtil 中的相似照片转换为 PhotoGroup

    if (titleName == "Screenshots") {
      final photoGroup = ImagePickerUtil.screenshotPhotos;
      if (photoGroup.isNotEmpty) {
        photoGroups.add(PhotoGroup(
          title: 'photo : ${photoGroup.length}',
          imageCount: photoGroup.length,
          isSelected: false,
          images: photoGroup,
        ));
      }
      selectedPhotosIds.assignAll(ImagePickerUtil.selectedScreenshotPhotosIds);
    } else if (titleName == "Blurry") {

      final photoGroup = ImagePickerUtil.blurryPhotos;
      if (photoGroup.isNotEmpty) {
        photoGroups.add(PhotoGroup(
          title: 'photo : ${photoGroup.length}',
          imageCount: photoGroup.length,
          isSelected: false,
          images: photoGroup,
        ));
      }
      selectedPhotosIds.assignAll(ImagePickerUtil.selectedBlurryPhotosIds);
    }
  }

  @override
  void onClose() {
    // TODO: implement onClose
    super.onClose();
    if (titleName == "Screenshots") {
      ImagePickerUtil.selectedScreenshotPhotosIds.assignAll(selectedPhotosIds);
    } else if (titleName == "Blurry") {
      ImagePickerUtil.selectedBlurryPhotosIds.assignAll(selectedPhotosIds);
    }
  }
}