Clean/lib/base/base_photos_controller.dart

import 'package:clean/base/base_controller.dart';
import 'package:flutter/material.dart';
import 'package:flutter_smart_dialog/flutter_smart_dialog.dart';
import 'package:get/get.dart';
import 'package:wechat_assets_picker/wechat_assets_picker.dart';

import '../../dialog/photo_delete_finish_dialog.dart';
import '../../dialog/photo_deleting_dialog.dart';
import '../../utils/file_size_calculator_util.dart';
import '../../utils/toast_util.dart';
import '../data/repositories/user_repository.dart';
import '../module/calendar/preview/calendar_preview_view.dart';
import '../module/image_picker/image_picker_util.dart';
import '../module/people_photo/photo_group.dart';
import '../module/store/store_view.dart';

// 单个组
abstract class BasePhotosController extends BaseController {


  final Rx<PhotoGroup> photoGroup = PhotoGroup(isSelected: false, images: []).obs;

  @override
  void onInit() {
    super.onInit();
  }

  void clickBack() {
    print('BasePhotosController $runtimeType clickBack');
    Get.back();
  }

  // 切换图片组选中状态
  void toggleGroupSelection() {
    photoGroup.value.toggleSelectAll(!photoGroup.value.isSelected.value);
    updateSelectedFilesSize();
  }

  // 删除选中的图片
  Future<void> clickDelete() async {
    debugPrint('BasePhotosController $runtimeType clickDelete');
    if (!userRepository.isVip()) {
      StorePage.start();
      return;
    }
    if (photoGroup.value.selectedPhotosIds.isNotEmpty) {
      photoDeletingDialog();
      final List<String> result = await PhotoManager.editor.deleteWithIds(
        photoGroup.value.selectedPhotosIds.toList(),
      );

      if (result.length == photoGroup.value.selectedPhotosIds.length) {
        debugPrint(
            "BasePhotosController $runtimeType delete ${photoGroup.value.selectedPhotosIds}");

        ImagePickerUtil.updatePhotoData(photoGroup.value.selectedPhotosIds);
        cleanSelections();
        ToastUtil.show('Delete success');
        Future.delayed(Duration(seconds: 2), () {
          SmartDialog.dismiss(tag: 'photoDeletingDialog');
          photoDeleteFinishDialog();
        });
      } else {
        SmartDialog.dismiss(tag: 'photoDeletingDialog');
        ToastUtil.show("Delete failed");
      }
    }
  }

// 删除成功后清理选中图片
  void cleanSelections() {
    photoGroup.update((group) {
      group?.images.removeWhere(
          (element) => group.selectedPhotosIds.contains(element.id));
      group?.selectedPhotosIds.clear();
    });

    if (photoGroup.value.images.isNotEmpty) {
      updateSelectedFilesSize();
    }
  }

// 更新选中图片的总大小
  Future<void> updateSelectedFilesSize() async {
    if (photoGroup.value.selectedCount == 0) {
      photoGroup.value.selectedTotalSize.value = 0;
      return;
    }

    FileSizeCalculatorUtil.calculateTotalSize(
      assetIds: photoGroup.value.selectedPhotosIds,
      updateValue: (double totalSize) {
        photoGroup.value.selectedTotalSize.value = totalSize;
      },
    );
  }

// 更新选中的照片 ID
  void updateSelectedPhotosIds(String photoId, bool isSelected) {
    if (isSelected) {
      if (!photoGroup.value.selectedPhotosIds.contains(photoId)) {
        photoGroup.value.selectedPhotosIds.add(photoId);
      }
    } else {
      photoGroup.value.selectedPhotosIds.remove(photoId);
    }
    photoGroup.value.isSelected.value =
        photoGroup.value.selectedPhotosIds.length ==
            photoGroup.value.images.length;
  }

// 点击图片
  void clickImage(int imageIndex) {
    print("BasePhotosController $runtimeType clickImage");
    CalendarPreviewPage.start(
      photoGroup: photoGroup.value,
      currentImageId: photoGroup.value.images[imageIndex].id,
    );
  }

// 选中/取消选中图片
  Future<void> toggleImageSelection(int imageIndex) async {
    print("BasePhotosController $runtimeType toggleImageSelection");
    final image = photoGroup.value.images[imageIndex];
    photoGroup.value.toggleSelectImage(image.id);
    updateSelectedFilesSize();
  }

// 计算已选图片大小（格式化）
  String get selectedFilesSizeString {
    final double sizeInKB = photoGroup.value.selectedTotalSize.value;

    if (sizeInKB >= 1024 * 1024) {
      return "${(sizeInKB / (1024 * 1024)).toStringAsFixed(2)}GB";
    } else if (sizeInKB >= 1024) {
      return "${(sizeInKB / 1024).toStringAsFixed(2)}MB";
    } else {
      return "${sizeInKB.toStringAsFixed(2)}KB";
    }
  }
}