import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import '../controllers/explore_controller.dart';
import '../../chat/controllers/chat_controller.dart';
import '../../chat/views/chat_view.dart';
import '../../../data/providers/agent_provider.dart';
import '../../../core/widgets/common_bottom_nav.dart';
import '../../../core/routes/app_routes.dart';

class ExploreView extends GetView<ExploreController> {
  const ExploreView({Key? key}) : super(key: key);

  void _onChatItemTap(ChatItem item) {
    // 获取对应的Agent
    final agent = AgentProvider.getAgentById(item.id);
    if (agent == null) {
      Get.snackbar(
        'Error',
        'Agent not found',
        snackPosition: SnackPosition.BOTTOM,
      );
      return;
    }

    // 检查是否是同声翻译官
    if (agent.id == 'simultaneous_interpreter') {
      // 导航到翻译页面
      Get.toNamed(Routes.translation);
      return;
    }

    // 导航到聊天页面，让 binding 来处理控制器的创建
    Get.toNamed('/chat', arguments: {
      'agentId': agent.id,
      'agentName': agent.name,
      'agentAvatar': agent.avatarUrl,
      'agentSubtitle': agent.description,
      'systemPrompt': agent.systemPrompt,
      'welcomeMessage': agent.welcomeMessage,
      'playVoiceOnEnter': false,
    });
  }

  Widget _buildChatItem(ChatItem item) {
    // 获取对应的Agent
    final agent = AgentProvider.getAgentById(item.id);
    if (agent == null) return const SizedBox.shrink();
    
    return InkWell(
      onTap: () => _onChatItemTap(item),
      child: Container(
        padding: EdgeInsets.symmetric(horizontal: 16.w, vertical: 16.h),
        child: Row(
          children: [
            // 头像
            CircleAvatar(
              radius: 25.r,
              backgroundImage: AssetImage(agent.avatarUrl),
              backgroundColor: const Color(0xFFEEF4FF),
            ),
            SizedBox(width: 12.w),
            // 聊天内容
            Expanded(
              child: Column(
                crossAxisAlignment: CrossAxisAlignment.start,
                children: [
                  // 名称行
                  Row(
                    children: [
                      Text(
                        agent.name,
                        style: TextStyle(
                          fontSize: 16.sp,
                          fontWeight: FontWeight.w600,
                          color: Colors.black,
                        ),
                      ),
                      if (agent.tag == '推荐') ...[
                        SizedBox(width: 8.w),
                        Container(
                          padding: EdgeInsets.symmetric(horizontal: 6.w, vertical: 2.h),
                          decoration: BoxDecoration(
                            color: const Color(0xFFE8F5E9),
                            borderRadius: BorderRadius.circular(4.r),
                          ),
                          child: Text(
                            '推荐',
                            style: TextStyle(
                              fontSize: 12.sp,
                              color: const Color(0xFF4CAF50),
                            ),
                          ),
                        ),
                      ],
                    ],
                  ),
                  SizedBox(height: 4.h),
                  // 描述
                  Text(
                    agent.description,
                    style: TextStyle(
                      fontSize: 14.sp,
                      color: Colors.grey[600],
                    ),
                    maxLines: 1,
                    overflow: TextOverflow.ellipsis,
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.white,
      appBar: AppBar(
        backgroundColor: Colors.white,
        elevation: 0,
        title: Text(
          '对话',
          style: TextStyle(
            fontSize: 17.sp,
            fontWeight: FontWeight.w600,
            color: Colors.black,
          ),
        ),
        centerTitle: true,
        actions: [
          IconButton(
            icon: Icon(
              Icons.search,
              color: Colors.black,
              size: 24.sp,
            ),
            onPressed: () {},
          ),
          IconButton(
            icon: Icon(
              Icons.add_circle_outline,
              color: Colors.black,
              size: 24.sp,
            ),
            onPressed: () {},
          ),
          SizedBox(width: 4.w),
        ],
      ),
      body: Obx(() => ListView.separated(
        itemCount: controller.chatList.length,
        separatorBuilder: (context, index) => Divider(
          height: 1,
          indent: 16.w,
          endIndent: 16.w,
          color: const Color(0xFFEEEEEE),
        ),
        itemBuilder: (context, index) => _buildChatItem(controller.chatList[index]),
      )),
      bottomNavigationBar: const CommonBottomNav(currentIndex: 1),
    );
  }
}