import 'dart:io';
import 'dart:math';
import 'package:clean/base/base_page.dart';
import 'package:clean/module/similar_photo/similar_photo_controller.dart';
import 'package:clean/resource/assets.gen.dart';
import 'package:clean/router/app_pages.dart';
import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';

class SimilarPhotoPage extends BasePage<SimilarPhotoController> {
  const SimilarPhotoPage({super.key});

  static void start() {
    Get.put((SimilarPhotoController()));
    Get.toNamed(RoutePath.similarPhoto);
  }

  @override
  bool statusBarDarkFont() => false;

  @override
  bool immersive() => true;

  @override
  Widget buildBody(BuildContext context) {
    return Stack(children: [
      Container(
        child: SafeArea(
          child: Column(
            children: [
              _titleCard(),
              Expanded(
                child: Obx(() {
                  return ListView(
                    padding: EdgeInsets.symmetric(horizontal: 16.w),
                    children: [
                      ...controller.photoGroups.map((group) => Column(
                            children: [
                              _buildPhotoGroup(
                                title: group.title,
                                imageCount: group.imageCount,

                              ),
                              SizedBox(height: 15.h),
                            ],
                          ))
                    ],
                  );
                }),
              ),
              _bottomBarCard(),
            ],
          ),
        ),
      ),
      IgnorePointer(
        child: Assets.images.bgHome.image(
          width: 360.w,
          height: 234.h,
        ),
      ),
    ]);
  }

  Widget _titleCard() {
    return Container(
      alignment: Alignment.centerLeft,
      padding: EdgeInsets.only(left: 16.w, top: 14.h),
      child: Column(
        crossAxisAlignment: CrossAxisAlignment.start,
        children: [
          GestureDetector(
            onTap: () => Get.back(),
            child: Assets.images.iconBackArrow.image(
              width: 28.w,
              height: 28.h,
            ),
          ),
          SizedBox(height: 12.h),
          Text(
            'Similar Photos',
            style: TextStyle(
              color: Colors.white,
              fontSize: 24.sp,
              fontWeight: FontWeight.w700,
            ),
          ),
          SizedBox(height: 20.h),
        ],
      ),
    );
  }

  Widget _bottomBarCard() {
    return Container(
      width: 360.w,
      height: 81.h,
      padding: EdgeInsets.symmetric(horizontal: 16.w),
      decoration: ShapeDecoration(
        color: Color(0xFF23232A),
        shape: RoundedRectangleBorder(
          side: BorderSide(width: 1.w, color: Colors.white.withOpacity(0.1)),
          borderRadius: BorderRadius.only(
            topLeft: Radius.circular(14.r),
            topRight: Radius.circular(14.r),
          ),
        ),
      ),
      child: Row(
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          Obx(() => Text(
                '${controller.selectedFileCount} files selected (${controller.selectedFilesSize.toStringAsFixed(1)} KB)',
                textAlign: TextAlign.center,
                style: TextStyle(
                  color: Colors.white.withValues(alpha: 0.9),
                  fontSize: 13.sp,
                  fontWeight: FontWeight.w500,
                ),
              )),
          Container(
            width: 108.w,
            height: 38.h,
            decoration: ShapeDecoration(
              color: Color(0xFF0279FB),
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(10.r),
              ),
            ),
            child: Row(
              mainAxisAlignment: MainAxisAlignment.spaceEvenly,
              children: [
                Text(
                  'Delete',
                  textAlign: TextAlign.center,
                  style: TextStyle(
                    color: Colors.white,
                    fontSize: 16.sp,
                    fontWeight: FontWeight.w500,
                  ),
                ),
                Assets.images.iconDelete.image(
                  width: 18.w,
                  height: 18.h,
                ),
              ],
            ),
          ),
        ],
      ),
    );
  }

  Widget _buildPhotoGroup({
    required String title,
    required int imageCount,

  }) {
    return Container(
      padding: EdgeInsets.symmetric(horizontal: 12.w),
      margin: EdgeInsets.only(top: 14.h),
      width: 328.w,
      height: 258.h,
      decoration: ShapeDecoration(
        color: Colors.white.withValues(alpha: 0.12),
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(14.sp),
        ),
      ),
      child: Column(
        mainAxisAlignment: MainAxisAlignment.spaceEvenly,
        children: [
          Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            children: [
              Row(
                children: [
                  Text(
                    title,
                    textAlign: TextAlign.center,
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 14.sp,
                      fontWeight: FontWeight.w500,
                    ),
                  ),

                ],
              ),
              GestureDetector(
                onTap: () => controller.toggleGroupSelection(title),
                child: Obx(() => Text(
                      controller.photoGroups
                              .firstWhere((g) => g.title == title)
                              .isSelected
                              .value
                          ? 'Deselect All'
                          : 'Select All',
                      style: TextStyle(
                        color: Colors.white.withValues(alpha: 0.7),
                        fontSize: 14.sp,
                        fontWeight: FontWeight.w400,
                      ),
                    )),
              ),
            ],
          ),
          SizedBox(
            height: 148.h,
            child: ListView(
              scrollDirection: Axis.horizontal,
              physics: BouncingScrollPhysics(),
              children: [
                // 第一张大图
                if (imageCount > 0)
                  GestureDetector(
                    onTap: () => controller.toggleImageSelection(title, 0),
                    child: SizedBox(
                      width: 148.w,
                      height: 148.h,
                      child: Obx(() {
                        final group = controller.photoGroups
                            .firstWhere((g) => g.title == title);
                        return Stack(
                          children: [
                            Container(
                              decoration: ShapeDecoration(
                                color: Colors.white.withValues(alpha: 0.12),
                                shape: RoundedRectangleBorder(
                                  borderRadius: BorderRadius.circular(8.r),
                                ),
                                image: DecorationImage(
                                  image: FileImage(File(group.images[0])),
                                  fit: BoxFit.cover,
                                ),
                              ),
                            ),
                            Positioned(
                              left: 8.w,
                              top: 8.h,
                              child: Container(

                                width: 108.w,
                                height: 26.h,
                                padding: EdgeInsets.symmetric(
                                  horizontal: 8.w,
                                  vertical: 4.h,
                                ),
                                decoration: ShapeDecoration(
                                  color: Colors.black.withValues(alpha: 0.74),
                                  shape: RoundedRectangleBorder(
                                    borderRadius:
                                        BorderRadius.circular(14.21.r),
                                  ),
                                ),
                                child: Row(
                                  mainAxisAlignment:
                                      MainAxisAlignment.spaceAround,
                                  children: [
                                    Assets.images.iconSimilarBest.image(
                                      width: 11.37.w,
                                      height: 11.37.h,
                                    ),
                                    Text(
                                      'Best result',
                                      textAlign: TextAlign.center,
                                      style: TextStyle(
                                        color: Colors.white,
                                        fontSize: 13.sp,
                                        fontWeight: FontWeight.w400,
                                      ),
                                    ),
                                  ],
                                ),
                              ),
                            ),
                            Positioned(
                              right: 4.w,
                              bottom: 4.h,
                              child: Container(
                                child: group.selectedImages[0]
                                    ? Center(
                                        child: Assets.images.iconSelected.image(
                                          width: 16.w,
                                          height: 16.h,
                                        ),
                                      )
                                    : Center(
                                        child:
                                            Assets.images.iconUnselected.image(
                                          width: 16.w,
                                          height: 16.h,
                                        ),
                                      ),
                              ),
                            ),
                          ],
                        );
                      }),
                    ),
                  ),
                // 其他图片2x2网格
                if (imageCount > 1)
                  ...List.generate(((imageCount - 1) / 4).ceil(), (gridIndex) {
                    return Container(
                      margin: EdgeInsets.only(left: 8.w),
                      width: 142.w,
                      child: GridView.count(
                        physics: NeverScrollableScrollPhysics(),
                        crossAxisCount: 2,
                        mainAxisSpacing: 8.h,
                        crossAxisSpacing: 8.w,
                        children: List.generate(
                          min(4, imageCount - 1 - gridIndex * 4),
                          (index) {
                            final realIndex = gridIndex * 4 + index + 1;
                            return GestureDetector(
                              onTap: () => controller.toggleImageSelection(
                                  title, realIndex),
                              child: Obx(() {
                                final group = controller.photoGroups
                                    .firstWhere((g) => g.title == title);
                                return Container(
                                  decoration: ShapeDecoration(
                                    color: Colors.white.withOpacity(0.12),
                                    shape: RoundedRectangleBorder(
                                      borderRadius: BorderRadius.circular(8.r),
                                    ),
                                    image: DecorationImage(
                                      image: FileImage(
                                          File(group.images[realIndex])),
                                      fit: BoxFit.cover,
                                    ),
                                  ),
                                  child: Stack(
                                    children: [
                                      Positioned(
                                        right: 4.w,
                                        bottom: 4.h,
                                        child: Obx(() {
                                          final isSelected =
                                              group.selectedImages[realIndex];
                                          return Container(
                                            child: isSelected
                                                ? Center(
                                                    child: Assets
                                                        .images.iconSelected
                                                        .image(
                                                      width: 16.w,
                                                      height: 16.h,
                                                    ),
                                                  )
                                                : Center(
                                                    child: Assets
                                                        .images.iconUnselected
                                                        .image(
                                                      width: 16.w,
                                                      height: 16.h,
                                                    ),
                                                  ),
                                          );
                                        }),
                                      ),
                                    ],
                                  ),
                                );
                              }),
                            );
                          },
                        ),
                      ),
                    );
                  }),
              ],
            ),
          ),
          Container(

            width: 162.w,
            height: 38.h,
            decoration: ShapeDecoration(
              color: Color(0xFF0279FB),
              shape: RoundedRectangleBorder(
                borderRadius: BorderRadius.circular(10.r),
              ),
            ),


            child: Center(
              child: Obx(() => Text(
                    'Move ${controller.photoGroups.firstWhere((g) => g.title == title).selectedCount} to trash',
                    style: TextStyle(
                      color: Colors.white,
                      fontSize: 16.sp,
                      fontWeight: FontWeight.w500,
                    ),
                  )),
            ),
          ),
        ],
      ),
    );
  }
}