import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:problem_check_system/modules/problem/controllers/problem_controller.dart';
import 'package:problem_check_system/modules/problem/views/problem_list_page.dart'; // 导入修正后的 ProblemListPage
import 'package:problem_check_system/modules/problem/views/problem_form_page.dart';
import 'package:problem_check_system/modules/problem/views/widgets/custom_data_range_dropdown.dart';
import 'package:problem_check_system/modules/problem/views/widgets/custom_string_dropdown.dart';
import 'package:problem_check_system/modules/problem/views/widgets/problem_card.dart'; // 导入自定义下拉菜单

class ProblemPage extends GetView<ProblemController> {
  const ProblemPage({super.key});

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
      initialIndex: 0,
      length: 2,
      child: Scaffold(
        body: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Container(
              width: 375.w,
              height: 83.5.h,
              alignment: Alignment.bottomLeft,
              decoration: const BoxDecoration(
                gradient: LinearGradient(
                  begin: Alignment.centerLeft,
                  end: Alignment.centerRight,
                  colors: [Color(0xFF418CFC), Color(0xFF3DBFFC)],
                ),
              ),
              child: TabBar(
                controller: controller.tabController,
                indicatorSize: TabBarIndicatorSize.tab,
                indicator: const BoxDecoration(
                  color: Color(0xfffff7f7),
                  borderRadius: BorderRadius.only(
                    topLeft: Radius.circular(8),
                    topRight: Radius.circular(60),
                  ),
                ),
                tabs: const [
                  Tab(text: '问题列表'),
                  Tab(text: '历史问题列表'),
                ],
                labelStyle: TextStyle(
                  fontFamily: 'MyFont',
                  fontWeight: FontWeight.w800,
                  fontSize: 14.sp,
                ),
                unselectedLabelStyle: TextStyle(
                  fontFamily: 'MyFont',
                  fontWeight: FontWeight.w800,
                  fontSize: 14.sp,
                ),
                labelColor: Colors.black,
                unselectedLabelColor: Colors.white,
              ),
            ),
            Expanded(
              child: TabBarView(
                controller: controller.tabController,
                children: [
                  // 问题列表 Tab
                  Column(
                    children: [
                      Container(
                        padding: EdgeInsets.symmetric(horizontal: 17.w),
                        child: Row(
                          children: [
                            CustomDateRangeDropdown(
                              selectedRange: controller.selectedDateRange,
                              onChanged: (rangeValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newDateRange: rangeValue,
                                );
                              },
                            ),

                            CustomStringDropdown(
                              selectedValue: controller.selectedUploadStatus,
                              items: const ['全部', '未上传', '已上传'],
                              onChanged: (uploadValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newUploadStatus: uploadValue,
                                );
                              },
                            ),

                            CustomStringDropdown(
                              selectedValue: controller.selectedBindingStatus,
                              items: const ['全部', '未绑定', '已绑定'],
                              onChanged: (bindingValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newBindingStatus: bindingValue,
                                );
                              },
                            ),
                          ],
                        ),
                      ),

                      Expanded(
                        child: // 使用通用列表组件
                        ProblemListPage(
                          problemsToShow: controller.problems,
                          viewType: ProblemCardViewType.buttons,
                        ),
                      ),
                    ],
                  ),
                  // 历史问题列表 Tab
                  Column(
                    children: [
                      Container(
                        padding: EdgeInsets.symmetric(horizontal: 17.w),
                        child: Row(
                          children: [
                            CustomDateRangeDropdown(
                              selectedRange: controller.selectedDateRange,
                              onChanged: (rangeValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newDateRange: rangeValue,
                                );
                              },
                            ),

                            CustomStringDropdown(
                              selectedValue: controller.selectedUploadStatus,
                              items: const ['全部', '未上传', '已上传'],
                              onChanged: (uploadValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newUploadStatus: uploadValue,
                                );
                              },
                            ),

                            CustomStringDropdown(
                              selectedValue: controller.selectedBindingStatus,
                              items: const ['全部', '未绑定', '已绑定'],
                              onChanged: (bindingValue) {
                                controller.updateFiltersAndLoadProblems(
                                  newBindingStatus: bindingValue,
                                );
                              },
                            ),
                          ],
                        ),
                      ),

                      Expanded(
                        child: // 使用通用列表组件
                        ProblemListPage(
                          problemsToShow: controller.problems,
                          viewType: ProblemCardViewType.buttons,
                        ),
                      ),
                    ],
                  ),
                ],
              ),
            ),
          ],
        ),
        // floatingActionButtonLocation: FloatingActionButtonLocation.centerFloat,
        // floatingActionButton: Stack(
        //   children: [
        //     Align(
        //       alignment: Alignment.bottomCenter,
        //       child: FloatingActionButton(
        //         heroTag: "btn_add",
        //         onPressed: () {
        //           Get.to(() => ProblemFormPage());
        //         },
        //         shape: const CircleBorder(),
        //         backgroundColor: Colors.blue[300],
        //         foregroundColor: Colors.white,
        //         child: const Icon(Icons.add),
        //       ),
        //     ),
        //     Positioned(
        //       right: controller.fabPosition.value.dx, //27.w,
        //       bottom: controller.fabPosition.value.dy, //56.h,
        //       child: Obx(() {
        //         final bool isOnline = controller.isOnline.value;
        //         return GestureDetector(
        //           onPanUpdate: (details) {
        //             // 调用控制器中的方法来更新位置
        //             controller.updatePosition(details.delta);
        //           },
        //           child: FloatingActionButton(
        //             heroTag: "btn_upload",
        //             onPressed: isOnline
        //                 ? () => controller.uploadAllUnuploaded()
        //                 : null,
        //             foregroundColor: Colors.white,
        //             backgroundColor: isOnline
        //                 ? Colors.red[300]
        //                 : Colors.grey[400],
        //             child: Icon(
        //               isOnline
        //                   ? Icons.file_upload_outlined
        //                   : Icons.cloud_off_outlined,
        //             ),
        //           ),
        //         );
        //       }),
        //     ),
        //   ],
        // ),
        floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
        // 使用 Stack 统一管理所有浮动按钮
        floatingActionButton: Stack(
          children: [
            // 固定位置的 "添加" 按钮
            // 使用 Align 和 Positioned
            Align(
              alignment: Alignment.bottomCenter,
              child: Padding(
                padding: EdgeInsets.only(bottom: 24.h), // 底部间距
                child: FloatingActionButton(
                  heroTag: "btn_add",
                  onPressed: () {
                    Get.to(() => ProblemFormPage());
                  },
                  shape: const CircleBorder(),
                  backgroundColor: Colors.blue[300],
                  foregroundColor: Colors.white,
                  child: const Icon(Icons.add),
                ),
              ),
            ),

            // 可拖动的 "上传" 按钮
            Obx(() {
              final isOnline = controller.isOnline.value;
              return Positioned(
                // 使用正确的坐标，left/right 对应 dx，top/bottom 对应 dy
                left: controller.fabUploadPosition.value.dx,
                top: controller.fabUploadPosition.value.dy,
                child: GestureDetector(
                  onPanUpdate: (details) {
                    // 调用控制器中的方法来更新位置
                    controller.updateFabUploadPosition(details.delta);
                  },
                  onPanEnd: (details) {
                    // 拖动结束后调用吸附方法
                    controller.snapToEdge();
                  },
                  child: FloatingActionButton(
                    heroTag: "btn_upload",
                    onPressed: isOnline
                        ? () => controller.uploadAllUnuploaded()
                        : null,
                    foregroundColor: Colors.white,
                    backgroundColor: isOnline
                        ? Colors.red[300]
                        : Colors.grey[400],
                    child: Icon(
                      isOnline
                          ? Icons.file_upload_outlined
                          : Icons.cloud_off_outlined,
                    ),
                  ),
                ),
              );
            }),
          ],
        ),
      ),
    );
  }
}