import 'package:flutter/material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import '../controllers/agent_controller.dart';

String formatDistance(String distanceStr) {
  final distance = double.tryParse(distanceStr);
  if (distance == null) return distanceStr; // 如果无法解析，则返回原始字符串

  if (distance >= 1000) {
    final km = distance / 1000;
    return '${km.toStringAsFixed(1)} 公里';
  } else {
    return '${distance.toStringAsFixed(0)} 米';
  }
}

String formatDuration(String secondsStr) {
  int totalSeconds = int.tryParse(secondsStr) ?? 0;
  Duration duration = Duration(seconds: totalSeconds);

  int hours = duration.inHours;
  int minutes = duration.inMinutes.remainder(60);
  int seconds = duration.inSeconds.remainder(60);

  List<String> parts = [];
  if (hours > 0) parts.add('$hours小时');
  if (minutes > 0) parts.add('$minutes分钟');
  if (seconds > 0 || parts.isEmpty) parts.add('$seconds秒');

  return parts.join('');
}

//导航卡片
Widget navigationCard(
  BuildContext context, {
  required String start,
  required String end,
  required String destination,
  required List<Map<String, dynamic>> modes,
  Map<String, dynamic>? navigation,
  double height = 300,
}) {
  int currentIndex = 0;
  final controller = Get.find<AgentController>(); // 获取控制器
  final isDarkMode = Theme.of(context).brightness == Brightness.dark;

  return Container(
    height: height.h,
    decoration: BoxDecoration(
      borderRadius: BorderRadius.circular(16.r),
      color: isDarkMode ? const Color(0xFF1E1E1E) : Colors.white,
      boxShadow: [
        BoxShadow(
          blurRadius: 8,
          color: Colors.black.withValues(alpha: isDarkMode ? 0.3 : 0.12),
          offset: const Offset(0, 4),
        ),
      ],
    ),
    child: StatefulBuilder(
      builder: (context, setInnerState) {
        return Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            // 路线图片
            ClipRRect(
              borderRadius:
                  BorderRadius.vertical(top: Radius.circular(16.r)),
              child: AnimatedSwitcher(
                duration: const Duration(milliseconds: 300),
                child: Image.network(
                  modes[currentIndex]["image"] as String,
                  key: ValueKey<String>(modes[currentIndex]["ntype"] as String),
                  height: 160.h,
                  width: double.infinity,
                  fit: BoxFit.cover,
                ),
              ),
            ),

            // 导航方式切换按钮
            Padding(
              padding: EdgeInsets.symmetric(vertical: 8.h, horizontal: 4.w),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceEvenly,
                children: List.generate(modes.length, (index) {
                  final isSelected = index == currentIndex;
                  return GestureDetector(
                    onTap: modes[index]['enable'] as bool
                        ? () {
                            setInnerState(() => currentIndex = index);
                          }
                        : null,
                    child: SizedBox(
                      width: 50.w,
                      child: Text(
                        (modes[index]["ntype"] as String).tr,
                        textAlign: TextAlign.center,
                        style: TextStyle(
                          color: modes[index]['enable']
                              ? isSelected
                                  ? Theme.of(context).primaryColor
                                  : isDarkMode ? Colors.white.withValues(alpha: 0.9) : Colors.black87
                              : Colors.grey,
                          fontSize: 12.sp,
                          fontWeight: FontWeight.w500,
                        ),
                      ),
                    ),
                  );
                }),
              ),
            ),

            // 距离和耗时
            Padding(
              padding: EdgeInsets.symmetric(horizontal: 8.w),
              child: Row(
                mainAxisAlignment: MainAxisAlignment.spaceBetween,
                children: [
                  Column(
                    crossAxisAlignment: CrossAxisAlignment.start,
                    children: [
                      Text(destination,
                          style: TextStyle(
                              fontSize: 12.sp,
                              color: isDarkMode ? Colors.white.withValues(alpha: 0.9) : Colors.black87)),
                      Text(
                          '${formatDistance(modes[currentIndex]["distance"])}-约${formatDuration(modes[currentIndex]["duration"])}',
                          style: TextStyle(
                              fontSize: 15.sp,
                              color: Theme.of(context).primaryColor)),
                      if (navigation != null)
                        Text(
                            "导航中... ${navigation["distanceText"]}进入${navigation["nextRoad"]}",
                            style: TextStyle(
                                fontSize: 12.sp,
                                color: isDarkMode ? Colors.grey[400] : Colors.grey[600]))
                    ],
                  ),
                  CircleAvatar(
                    backgroundColor: Theme.of(context).primaryColor,
                    radius: 18.r,
                    child: IconButton(
                      icon: Icon(Icons.turn_left,
                          color: Colors.white, size: 20.sp),
                      onPressed: () {
                        controller.openNavigation(start, end, "");
                      },
                    ),
                  )
                ],
              ),
            ),
          ],
        );
      },
    ),
  );
}