import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:starwork_flutter/base/app_permission.dart';

import 'messages_controller.dart';
import 'messages_model.dart';

class MessagesView extends GetView<MessagesController> {
  const MessagesView({super.key});

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: const Color(0xFFF6F7FB),
      body: SafeArea(
        child: Container(
          width: 1.sw,
          padding: EdgeInsets.symmetric(horizontal: 15.w, vertical: 4.h),
          child: Column(
            children: [
              // 固定的上半部分
              _buildPageHead(context),
              _buildSystemNotificationPermissionRow(),
              Obx(
                () => Visibility(
                  visible: controller
                      .homeController.isOpenNotificationPermission.value,
                  child: SizedBox(
                    height: 10.h,
                  ),
                ),
              ),
              // 消息列表
              Expanded(
                child: _buildRefreshableMessageList(),
              ),
            ],
          ),
        ),
      ),
    );
  }

  _buildPageHead(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        // 左侧标题区域
        Expanded(
          child: GestureDetector(
            onTap: () {
              controller.mainController.scaffoldKey.currentState?.openDrawer();
            },
            child: Row(
              mainAxisSize: MainAxisSize.min,
              children: [
                Flexible(
                  child: Text(
                    '19104656的互12312联',
                    style: TextStyle(
                      fontSize: 18.sp,
                      fontWeight: FontWeight.w600,
                      color: Colors.black87,
                    ),
                    overflow: TextOverflow.ellipsis,
                    maxLines: 1,
                  ),
                ),
                Icon(
                  Icons.arrow_right_rounded,
                  size: 22.sp,
                ),
              ],
            ),
          ),
        ),
        // 右侧功能按钮区域
        Expanded(
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceEvenly,
            mainAxisSize: MainAxisSize.min,
            children: [
              // 清除未读按钮
              Flexible(
                child: GestureDetector(
                  onTap: () {
                    // 处理清除未读点击事件
                    controller.clearAllUnread();
                    print('清除未读被点击');
                  },
                  child: Container(
                    padding: EdgeInsets.symmetric(
                      horizontal: 6.w, // 减小内边距
                      vertical: 3.h,
                    ),
                    decoration: BoxDecoration(
                      color: const Color(0xFFF0F0F0),
                      borderRadius: BorderRadius.circular(12.r),
                    ),
                    child: Row(
                      mainAxisSize: MainAxisSize.min,
                      children: [
                        Flexible(
                          child: Text(
                            '清除未读',
                            style: TextStyle(
                              fontSize: 12.sp, // 减小字体
                              color: Colors.black54,
                              fontWeight: FontWeight.w400,
                            ),
                            overflow: TextOverflow.ellipsis,
                            maxLines: 1,
                          ),
                        ),
                      ],
                    ),
                  ),
                ),
              ),
              // 分隔线
              Container(
                height: 16.h, // 减小高度
                width: 1.w,
                color: Colors.grey.withOpacity(0.3),
              ),
              // 通知设置按钮
              Flexible(
                child: GestureDetector(
                  onTap: () {
                    // 处理通知设置点击事件
                    print('通知设置被点击');
                  },
                  child: Text(
                    '通知设置',
                    style: TextStyle(
                      fontSize: 14.sp, // 减小字体
                      color: Colors.black,
                      fontWeight: FontWeight.w400,
                    ),
                    overflow: TextOverflow.ellipsis,
                    maxLines: 1,
                  ),
                ),
              ),
            ],
          ),
        ),
      ],
    );
  }

  _buildSystemNotificationPermissionRow() {
    return Obx(
      () => Visibility(
        visible: !controller.homeController.isOpenNotificationPermission.value,
        child: Container(
          padding: EdgeInsets.symmetric(horizontal: 10.w, vertical: 4.h),
          decoration: BoxDecoration(
            color: const Color(0xFFFEF2E5),
            borderRadius: BorderRadius.all(
              Radius.circular(8.r),
            ),
          ),
          margin: EdgeInsets.symmetric(vertical: 8.h),
          child: Row(
            mainAxisAlignment: MainAxisAlignment.spaceBetween,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Text(
                '系统通知未开启,报警消息无法通知'.tr,
                style: TextStyle(
                  color: const Color(0xFFEE9846),
                  fontSize: 12.sp,
                ),
              ),
              const Spacer(),
              GestureDetector(
                onTap: () async {
                  controller.homeController.isOpenNotificationPermission.value =
                      await AppPermission.requestNotificationPermission();
                },
                child: Container(
                  padding: EdgeInsets.symmetric(horizontal: 6.w, vertical: 4.h),
                  decoration: BoxDecoration(
                    color: Colors.white,
                    borderRadius: BorderRadius.all(
                      Radius.circular(4.r),
                    ),
                  ),
                  child: Text(
                    '去开启'.tr,
                    style: TextStyle(
                      color: const Color(0xFFEE9846),
                      fontSize: 12.sp,
                    ),
                  ),
                ),
              ),
              SizedBox(
                width: 14.w,
              ),
              GestureDetector(
                onTap: () {
                  controller.homeController.isOpenNotificationPermission.value =
                      true;
                },
                child: Icon(
                  Icons.cancel,
                  color: const Color(0xFFEE9846),
                  size: 18.sp,
                ),
              )
            ],
          ),
        ),
      ),
    );
  }

  _buildRefreshableMessageList() {
    return RefreshIndicator(
      onRefresh: _onRefresh,
      // 基础样式配置
      color: const Color(0xFF4A90E2),
      // 刷新指示器颜色
      backgroundColor: Colors.white,
      // 背景颜色

      // 控制下拉触发距离的关键属性
      displacement: 60.0,
      // 刷新指示器距离顶部的距离（默认40.0）
      edgeOffset: 0.0,
      // 边缘偏移量（默认0.0）

      // 控制下拉幅度的关键属性
      triggerMode: RefreshIndicatorTriggerMode.onEdge,
      // 触发模式
      // RefreshIndicatorTriggerMode.onEdge: 在边缘触发（默认）
      // RefreshIndicatorTriggerMode.anywhere: 在任何位置都可以触发

      // 描边宽度
      strokeWidth: 2.5,
      // 刷新指示器的描边宽度（默认2.0）

      // 语义标签（用于无障碍功能）
      semanticsLabel: '下拉刷新消息列表',
      semanticsValue: '刷新中...',

      child: SingleChildScrollView(
        physics: const AlwaysScrollableScrollPhysics(
          // 控制滚动物理特性
          parent: BouncingScrollPhysics(), // 添加弹性滚动效果
        ),
        child: Column(
          children: [
            _buildMessageList(),
            SizedBox(height: 16.h),
            _buildMessageTip(),
          ],
        ),
      ),
    );
  }

  Future<void> _onRefresh() async {
    // 调用controller的刷新方法
    await controller.refreshMessages();
  }

  _buildMessageList() {
    return Container(
      decoration: BoxDecoration(
        color: Colors.white,
        borderRadius: BorderRadius.circular(8.r),
      ),
      child: Obx(
        () => Column(
          children: [
            // 动态生成消息列表项
            ...controller.messageList.asMap().entries.map((entry) {
              int index = entry.key;
              MessageItem message = entry.value;

              return Column(
                children: [
                  _buildMessageItem(
                    message: message,
                    onTap: () => _onMessageTap(index, message),
                  ),
                  // 如果不是最后一项，显示分隔线
                  if (index < controller.messageList.length - 1)
                    _buildDivider(),
                ],
              );
            }).toList(),
          ],
        ),
      ),
    );
  }

  _buildMessageTip() {
    return Container(
      padding: EdgeInsets.symmetric(vertical: 10.h),
      child: Text(
        '只展示最近7天的消息',
        style: TextStyle(
          fontSize: 12.sp,
          color: Colors.grey[500],
          fontWeight: FontWeight.w400,
        ),
      ),
    );
  }

  _buildMessageItem({
    required MessageItem message,
    VoidCallback? onTap,
  }) {
    return GestureDetector(
      onTap: onTap ??
          () {
            // 默认点击事件
            print('${message.title} 被点击');
          },
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 10.w, vertical: 10.h),
        child: Row(
          children: [
            // 左侧图标
            Stack(
              children: [
                Container(
                  width: 40.w,
                  height: 40.w,
                  decoration: BoxDecoration(
                    color: message.iconBgColor,
                    borderRadius: BorderRadius.circular(8.r),
                  ),
                  child: Icon(
                    message.icon,
                    color: message.iconColor,
                    size: 20.sp,
                  ),
                ),
                if (message.hasRedDot)
                  Positioned(
                    top: 0,
                    right: 0,
                    child: Container(
                      width: 8.w,
                      height: 8.w,
                      decoration: const BoxDecoration(
                        color: Colors.red,
                        shape: BoxShape.circle,
                      ),
                    ),
                  ),
              ],
            ),
            SizedBox(width: 12.w),
            // 中间内容
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  Text(
                    message.title,
                    style: TextStyle(
                      fontSize: 16.sp,
                      fontWeight: FontWeight.w600,
                      color: Colors.black87,
                    ),
                  ),
                  SizedBox(height: 4.h),
                  Text(
                    message.subtitle,
                    style: TextStyle(
                      fontSize: 14.sp,
                      color: Colors.grey[600],
                      fontWeight: FontWeight.w400,
                    ),
                    maxLines: 2,
                    overflow: TextOverflow.ellipsis,
                  ),
                ],
              ),
            ),
            // 右侧时间
            if (message.time.isNotEmpty)
              Text(
                message.time,
                style: TextStyle(
                  fontSize: 12.sp,
                  color: Colors.grey[400],
                  fontWeight: FontWeight.w400,
                ),
              ),
          ],
        ),
      ),
    );
  }

  // 处理消息项点击事件
  void _onMessageTap(int index, MessageItem message) {
    print('${message.title} 被点击，索引: $index');
    // 这里可以添加具体的业务逻辑，比如跳转到详情页面
    // 如果有未读标记，可以标记为已读
    if (message.hasRedDot) {
      // 可以在这里调用controller的方法标记为已读
    }
  }

  _buildDivider() {
    return Container(
      margin: EdgeInsets.symmetric(horizontal: 16.w),
      height: 1.h,
      color: Colors.grey[200],
    );
  }
}