import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:get/get.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:haptic_feedback/haptic_feedback.dart';
import '../../../core/theme/app_colors.dart';
import '../../../data/models/message_model.dart';
import '../../../data/services/network/api.dart';

/// 消息操作控制器
/// 负责处理消息长按、复制、举报等操作
class MessageActionController extends GetxController {
  // 当前举报的消息
  final reportingMessage = Rxn<Message>();

  // 选择的举报原因
  List<String> selectedReasons = [];

  // 举报描述
  final reportDescription = ''.obs;

  /// 处理消息长按事件
  void onLongPressMessage(
    BuildContext context,
    bool isDarkMode,
    LongPressStartDetails details,
    Message message,
  ) {
    // 触发触觉反馈
    Haptics.vibrate(HapticsType.success);
    
    // 计算弹出菜单位置
    RenderBox? renderBox = Overlay.of(context).context.findRenderObject() as RenderBox;
    final RelativeRect position = RelativeRect.fromRect(
      Rect.fromLTRB(
        details.globalPosition.dx,
        details.globalPosition.dy,
        details.globalPosition.dx + 110, // 菜单显示位置X轴坐标
        details.globalPosition.dy - 40, // 菜单显示位置Y轴坐标
      ),
      Offset.zero & renderBox.size,
    );

    // 显示弹出菜单
    showMenu(
      context: context,
      position: position,
      color: isDarkMode ? AppColors.cardBackground : Colors.white,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.circular(12.r),
      ),
      items: _buildMenuItems(context, isDarkMode, message),
    );
  }

  /// 构建弹出菜单项
  List<PopupMenuEntry> _buildMenuItems(
    BuildContext context,
    bool isDarkMode,
    Message message,
  ) {
    final List<PopupMenuEntry> items = [
      // 复制选项
      _buildPopupMenuItem(
        Icon(
          Icons.copy,
          size: 20.w,
          color: isDarkMode ? Colors.white : Colors.black87,
        ),
        '复制',
        isDarkMode ? Colors.white : Colors.black87,
        () => _copyMessage(message),
      ),
    ];

    // 如果不是用户消息，添加举报选项
    if (!message.isUser) {
      items.addAll([
        // 分隔线
        PopupMenuItem(
          height: 1,
          enabled: false,
          child: Divider(
            height: 1,
            thickness: 0.8,
            indent: 0,
            endIndent: 0,
            color: isDarkMode ? Colors.grey[700] : Colors.grey[300],
          ),
        ),
        // 举报选项
        _buildPopupMenuItem(
          Icon(
            Icons.report,
            size: 20.w,
            color: isDarkMode ? Colors.red[700] : Colors.red,
          ),
          '举报'.tr,
          isDarkMode ? Colors.red[700]! : Colors.red,
          () => _showReportForm(context, isDarkMode, message),
        ),
      ]);
    }

    return items;
  }

  /// 构建弹出菜单项
  PopupMenuEntry _buildPopupMenuItem(
    Icon icon,
    String title,
    Color color,
    Function() onTap,
  ) {
    return PopupMenuItem(
      onTap: onTap,
      child: SizedBox(
        width: 140.w,
        child: Row(
          children: [
            icon,
            8.horizontalSpace,
            Text(
              title,
              style: TextStyle(
                color: color,
                fontSize: 14.sp,
              ),
            ),
          ],
        ),
      ),
    );
  }

  /// 复制消息内容
  void _copyMessage(Message message) {
    Clipboard.setData(ClipboardData(text: message.text)).then((_) {
      Get.snackbar(
        'success'.tr,
        '复制成功',
        backgroundColor: Colors.blue.withOpacity(0.8),
        colorText: Colors.white,
      );
    });
  }

  /// 显示举报表单
  void _showReportForm(BuildContext context, bool isDarkMode, Message message) {
    // 初始化举报状态
    initReport(message);

    showModalBottomSheet(
      context: context,
      isScrollControlled: true,
      backgroundColor: isDarkMode ? AppColors.cardBackground : Colors.white,
      shape: RoundedRectangleBorder(
        borderRadius: BorderRadius.vertical(top: Radius.circular(16.r)),
      ),
      builder: (BuildContext context) {
        return Padding(
          padding: EdgeInsets.only(
            bottom: MediaQuery.of(context).viewInsets.bottom,
          ),
          child: _ReportForm(isDarkMode: isDarkMode),
        );
      },
    );
  }

  /// 初始化举报状态
  void initReport(Message message) {
    reportingMessage.value = message;
    selectedReasons.clear();
    reportDescription.value = '';
  }

  /// 切换举报原因选择状态
  void toggleReason(String reason) {
    if (selectedReasons.contains(reason)) {
      selectedReasons.remove(reason);
    } else {
      selectedReasons.add(reason);
    }
    update();
  }

  /// 更新举报描述
  void updateDescription(String text) {
    reportDescription.value = text;
  }

  /// 提交举报
  Future<void> submitReport() async {
    if (reportingMessage.value == null) return;

    // 构建举报数据
    final reportData = {
      'describe': reportDescription.value,
      'message': [],
      'reportContext': reportingMessage.value!.text,
      'reporttype': selectedReasons.toString(),
    };

    try {
      // 调用API提交举报
      var response = await Api.reportAiContent(reportData);
      
      if (response != null) {
        print('提交举报响应: $response');
      }

      // 提交成功后重置状态
      selectedReasons.clear();
      reportDescription.value = '';
      reportingMessage.value = null;

      // 关闭举报表单
      Navigator.of(Get.context!).pop();

      // 显示成功通知
      Get.snackbar(
        '提交成功',
        '举报已提交，我们会尽快处理',
        backgroundColor: Colors.green.withOpacity(0.8),
        colorText: Colors.white,
        duration: const Duration(seconds: 2),
      );
    } catch (e) {
      // 显示错误通知
      Get.snackbar(
        '提交失败',
        '网络错误，请稍后重试',
        backgroundColor: Colors.red.withOpacity(0.8),
        colorText: Colors.white,
        duration: const Duration(seconds: 2),
      );
    }
  }
}

/// 举报表单组件
class _ReportForm extends StatelessWidget {
  final bool isDarkMode;
  final MessageActionController controller = Get.find<MessageActionController>();

  _ReportForm({required this.isDarkMode});

  @override
  Widget build(BuildContext context) {
    return Container(
      padding: EdgeInsets.all(16.w),
      child: SingleChildScrollView(
        child: GetBuilder<MessageActionController>(
          builder: (_) => Column(
            mainAxisSize: MainAxisSize.min,
            crossAxisAlignment: CrossAxisAlignment.stretch,
            children: [
              // 标题栏
              Stack(
                alignment: Alignment.center,
                children: [
                  Center(
                    child: Text(
                      '举报',
                      style: TextStyle(
                        fontSize: 18.sp,
                        fontWeight: FontWeight.bold,
                        color: isDarkMode ? Colors.white : Colors.black,
                      ),
                    ),
                  ),
                  Positioned(
                    right: 0,
                    child: IconButton(
                      icon: Icon(
                        Icons.close,
                        color: isDarkMode ? Colors.grey[400] : Colors.black54,
                      ),
                      onPressed: () => Navigator.pop(context),
                    ),
                  ),
                ],
              ),

              // 分隔线
              Container(
                padding: EdgeInsets.symmetric(horizontal: 12.w),
                margin: EdgeInsets.only(bottom: 10.w),
                child: Divider(
                  height: 1,
                  color: Colors.grey[300],
                ),
              ),

              // 举报原因选择
              GetBuilder<MessageActionController>(
                builder: (controller) {
                  return Wrap(
                    spacing: 8.w,
                    runSpacing: 8.h,
                    children: [
                      _buildReportChip('有害/不安全', isDarkMode, controller),
                      _buildReportChip('色情低俗', isDarkMode, controller),
                      _buildReportChip('误导攻击', isDarkMode, controller),
                      _buildReportChip('违法犯罪', isDarkMode, controller),
                      _buildReportChip('隐私相关', isDarkMode, controller),
                      _buildReportChip('侵犯我的著作权、名誉权等', isDarkMode, controller),
                      _buildReportChip('其他', isDarkMode, controller),
                    ],
                  );
                },
              ),

              SizedBox(height: 16.h),

              // 描述输入框
              Container(
                padding: EdgeInsets.all(12.w),
                decoration: BoxDecoration(
                  color: isDarkMode ? Colors.grey[800] : Colors.grey[200],
                  borderRadius: BorderRadius.circular(8.r),
                ),
                child: TextField(
                  maxLines: 3,
                  onChanged: controller.updateDescription,
                  style: TextStyle(
                    color: isDarkMode ? Colors.white : Colors.black,
                  ),
                  decoration: InputDecoration(
                    hintText: '我们想知道你举报的原因，你可以描述你遇到的问题。',
                    hintStyle: TextStyle(
                      color: isDarkMode ? Colors.white70 : Colors.black54,
                      fontSize: 14.sp,
                    ),
                    border: InputBorder.none,
                  ),
                ),
              ),

              SizedBox(height: 14.h),

              // 提交按钮
              ElevatedButton(
                style: ElevatedButton.styleFrom(
                  backgroundColor: Colors.blue,
                  foregroundColor: Colors.white,
                  padding: EdgeInsets.symmetric(vertical: 12.h),
                  shape: RoundedRectangleBorder(
                    borderRadius: BorderRadius.circular(8.r),
                  ),
                ),
                child: Text('提交'),
                onPressed: () => controller.submitReport(),
              ),

              SizedBox(height: 8.h),
            ],
          ),
        ),
      ),
    );
  }

  /// 构建举报原因芯片
  Widget _buildReportChip(
    String label,
    bool isDarkMode,
    MessageActionController controller,
  ) {
    final isSelected = controller.selectedReasons.contains(label);

    return GestureDetector(
      onTap: () => controller.toggleReason(label),
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 12.w, vertical: 8.h),
        decoration: BoxDecoration(
          color: isSelected
              ? Colors.red
              : (isDarkMode ? Colors.grey[800] : Colors.grey[200]),
          borderRadius: BorderRadius.circular(16.r),
          border: Border.all(
            color: isSelected
                ? Colors.red[700]!
                : (isDarkMode ? Colors.grey[700]! : Colors.grey[300]!),
            width: isSelected ? 1.0 : 0.5,
          ),
        ),
        child: Text(
          label,
          style: TextStyle(
            color: isSelected
                ? Colors.white
                : (isDarkMode ? Colors.white : Colors.black87),
            fontSize: 14.sp,
            fontWeight: isSelected ? FontWeight.bold : FontWeight.normal,
          ),
        ),
      ),
    );
  }
}