import 'dart:io';

import 'package:clean/base/base_page.dart';
import 'package:clean/module/contact/backup/controller.dart';
import 'package:clean/resource/assets.gen.dart';
import 'package:clean/utils/expand.dart';
import 'package:clean/utils/file_utils.dart';
import 'package:flutter/Material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:get/get_state_manager/src/rx_flutter/rx_obx_widget.dart';

class ContactBackUpPage extends BasePage<ContactBackUpController> {
  const ContactBackUpPage({super.key});

  @override
  bool immersive() {
    return true;
  }

  @override
  bool statusBarDarkFont() => false;

  @override
  Widget buildBody(BuildContext context) {
    controller.init();
    return Stack(
      children: [
        buildMain(context),
        IgnorePointer(
          child: Assets.images.bgHome.image(
            width: 360.w,
          ),
        ),
      ],
    );
  }

  Widget buildMain(BuildContext context) {
    return SafeArea(
      child: Container(
        padding: EdgeInsets.only(left: 16.w, top: 14.h, right: 16.w),
        child: Obx(() {
          return Column(
            mainAxisAlignment: MainAxisAlignment.start,
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              !controller.isEdit.value
                  ? Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        GestureDetector(
                          onTap: () {
                            Get.back();
                          },
                          child: Assets.images.iconCommonBack
                              .image(width: 28.w, height: 28.w),
                        ),
                        GestureDetector(
                          onTap: () {
                            controller.isEdit.value = true;
                          },
                          child: Container(
                            width: 71.w,
                            height: 30.h,
                            decoration: BoxDecoration(
                              color: "#1F2D3F".color,
                              borderRadius: BorderRadius.all(
                                Radius.circular(15.h),
                              ),
                            ),
                            child: Center(
                              child: Text(
                                "Select",
                                style: TextStyle(
                                  color: Colors.white,
                                  fontSize: 14.sp,
                                ),
                              ),
                            ),
                          ),
                        ),
                      ],
                    )
                  : Row(
                      mainAxisAlignment: MainAxisAlignment.spaceBetween,
                      children: [
                        GestureDetector(
                          onTap: () {
                            controller.isEdit.value = false;
                          },
                          child: Container(
                            width: 71.w,
                            height: 30.h,
                            decoration: BoxDecoration(
                              color: "#1F2D3F".color,
                              borderRadius: BorderRadius.all(
                                Radius.circular(15.h),
                              ),
                            ),
                            child: Center(
                              child: Text(
                                "Cancel",
                                style: TextStyle(
                                  color: Colors.white,
                                  fontSize: 14.sp,
                                ),
                              ),
                            ),
                          ),
                        ),
                        GestureDetector(
                          onTap: () {
                            controller.toggleSelectAll();
                          },
                          child: Text(
                            controller.isAllSelected.value
                                ? "Deselect all"
                                : "Select All",
                            style: TextStyle(
                              color: Colors.white.withOpacity(0.65),
                              fontSize: 14.sp,
                            ),
                          ),
                        ),
                      ],
                    ),
              SizedBox(
                height: 12.h,
              ),
              Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Text(
                    "Backup",
                    style: TextStyle(
                      color: Colors.white,
                      fontWeight: FontWeight.w700,
                      fontSize: 24.sp,
                    ),
                  ),
                ],
              ),
              SizedBox(
                height: 26.h,
              ),
              Expanded(
                child: Obx(() {
                  return ListView.builder(
                    itemCount: controller.backupFilesMap.length,
                    itemBuilder: (context, index) {
                      final date =
                          controller.backupFilesMap.keys.toList()[index];
                      final files = controller.backupFilesMap[date]!;
                      return Column(
                        crossAxisAlignment: CrossAxisAlignment.start,
                        children: [
                          Text(
                            date,
                            style: TextStyle(
                              color: Colors.white.withOpacity(0.7),
                              fontSize: 14.sp,
                              fontWeight: FontWeight.w500,
                            ),
                          ),
                          SizedBox(
                            height: 10.h,
                          ),
                          ...files.asMap().entries.map((entry) {
                            final file = entry.value;
                            final fileName = file.path
                                .split('/')
                                .last
                                .split('_')
                                .firstOrNull;
                            final timestamp = file.path
                                .split('/')
                                .last
                                .split('_')
                                .last
                                .split('.')
                                .first;
                            final dateTime =
                                DateTime.fromMillisecondsSinceEpoch(
                                    int.parse(timestamp));
                            final time = _formatTime(dateTime);
                            // final size = _fileSize(file);
                            return FutureBuilder(
                              future: _fileSize(file),
                              builder: (context, snapshot) {
                                final size = snapshot.data ?? 0;
                                return GestureDetector(
                                  onTap: () {
                                    controller.restoreContacts(file);
                                  },
                                  child: Container(
                                    margin: EdgeInsets.only(bottom: 10.h),
                                    height: 60.h,
                                    decoration: BoxDecoration(
                                      color: Colors.white.withOpacity(0.12),
                                      borderRadius: BorderRadius.all(
                                          Radius.circular(10.r)),
                                    ),
                                    child: Row(
                                      children: [
                                        SizedBox(
                                          width: 10.w,
                                        ),
                                        Assets.images.iconContactsFile
                                            .image(width: 28.w, height: 28.w),
                                        SizedBox(
                                          width: 9.w,
                                        ),
                                        Column(
                                          mainAxisAlignment:
                                              MainAxisAlignment.center,
                                          crossAxisAlignment:
                                              CrossAxisAlignment.start,
                                          children: [
                                            Text(
                                              fileName ?? "",
                                              style: TextStyle(
                                                color: Colors.white,
                                                fontSize: 14.sp,
                                                fontWeight: FontWeight.w500,
                                              ),
                                            ),
                                            Text(
                                              "$size | $time",
                                              style: TextStyle(
                                                color: Colors.white
                                                    .withOpacity(0.8),
                                                fontSize: 12.sp,
                                              ),
                                            ),
                                          ],
                                        ),
                                        Spacer(),
                                        // 删除按钮
                                        Obx(() {
                                          return Visibility(
                                            visible: controller.isEdit.value,
                                            child: GestureDetector(
                                              onTap: () {
                                                controller
                                                    .toggleSelectFile(file);
                                                // controller.toggleSelectContact(
                                                //     contact);
                                              },
                                              child: Container(
                                                child: controller.selectedFiles
                                                        .contains(file.path)
                                                    ? Center(
                                                        child: Assets
                                                            .images.iconSelected
                                                            .image(
                                                          width: 20.w,
                                                          height: 20.h,
                                                        ),
                                                      )
                                                    : Center(
                                                        child: Assets.images
                                                            .iconUnselected
                                                            .image(
                                                          width: 20.w,
                                                          height: 20.h,
                                                        ),
                                                      ),
                                              ),
                                            ),
                                          );
                                        }),
                                        SizedBox(width: 20.w,),
                                      ],
                                    ),
                                  ),
                                );
                              },
                            );
                          }),
                        ],
                      );
                    },
                  );
                }),
              ),
              controller.isEdit.value
                  ? GestureDetector(
                      onTap: () {
                        controller.deleteBtnClick();
                      },
                      child: Container(
                        width: 328.w,
                        height: 48.h,
                        decoration: BoxDecoration(
                          color: "#0279FB".color,
                          borderRadius: BorderRadius.all(
                            Radius.circular(10.r),
                          ),
                        ),
                        child: Center(
                          child: Row(
                            mainAxisAlignment: MainAxisAlignment.center,
                            children: [
                              Text(
                                "Delete",
                                style: TextStyle(
                                  color: Colors.white,
                                  fontSize: 16.sp,
                                  fontWeight: FontWeight.w500,
                                ),
                              ),
                            ],
                          ),
                        ),
                      ),
                    )
                  : GestureDetector(
                      onTap: () {
                        controller.backupContacts();
                      },
                      child: Container(
                        width: 328.w,
                        height: 48.h,
                        decoration: BoxDecoration(
                          color: "#0279FB".color,
                          borderRadius: BorderRadius.all(
                            Radius.circular(10.r),
                          ),
                        ),
                        child: Center(
                          child: Row(
                            mainAxisAlignment: MainAxisAlignment.center,
                            children: [
                              Text(
                                "Backup Now",
                                style: TextStyle(
                                  color: Colors.white,
                                  fontSize: 16.sp,
                                  fontWeight: FontWeight.w500,
                                ),
                              ),
                            ],
                          ),
                        ),
                      ),
                    ),
            ],
          );
        }),
      ),
    );
  }

  Future<String> _fileSize(File file) async {
    return _formatFileSize(await file.length());
  }

  // 格式化文件大小
  String _formatFileSize(int bytes) {
    if (bytes < 1024) {
      return '$bytes B';
    } else if (bytes < 1024 * 1024) {
      return '${(bytes / 1024).toStringAsFixed(1)} KB';
    } else {
      return '${(bytes / (1024 * 1024)).toStringAsFixed(1)} MB';
    }
  }

  // 格式化时间为 "HH:mm"
  String _formatTime(DateTime dateTime) {
    return '${dateTime.hour.toString().padLeft(2, '0')}:${dateTime.minute.toString().padLeft(2, '0')}';
  }
}