import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import '../services/auth_service.dart';
import '../services/github_service.dart';
import '../models/github_event.dart';
import 'package:timeago/timeago.dart' as timeago;

class GithubCard extends StatefulWidget {
  const GithubCard({super.key});

  @override
  State<GithubCard> createState() => _GithubCardState();
}

class _GithubCardState extends State<GithubCard> {
  final GithubService _githubService = GithubService();
  late Future<List<GithubEvent>> _eventsFuture;

  @override
  void initState() {
    super.initState();
    _loadEvents();
  }

  void _loadEvents() {
    final authService = Provider.of<AuthService>(context, listen: false);
    final username = authService.credentials['github_username'];
    final token = authService.credentials['github_token'];

    if (username != null && token != null) {
      _eventsFuture = _githubService.getUserEvents(username, token);
    }
  }

  @override
  Widget build(BuildContext context) {
    final authService = Provider.of<AuthService>(context);
    final username = authService.credentials['github_username'];
    final token = authService.credentials['github_token'];

    if (username == null || token == null) {
      return const Center(child: Text('请在设置中配置 GitHub 用户名和 Token'));
    }

    return FutureBuilder<List<GithubEvent>>(
      future: _eventsFuture,
      builder: (context, snapshot) {
        if (snapshot.connectionState == ConnectionState.waiting) {
          return const Center(child: CircularProgressIndicator());
        }

        if (snapshot.hasError) {
          return Center(child: Text('加载失败: ${snapshot.error}'));
        }

        if (!snapshot.hasData || snapshot.data!.isEmpty) {
          return const Center(child: Text('暂无活动数据'));
        }

        return ListView.builder(
          itemCount: snapshot.data!.length,
          itemBuilder: (context, index) {
            final event = snapshot.data![index];
            return Card(
              margin: const EdgeInsets.symmetric(horizontal: 16, vertical: 8),
              child: ListTile(
                leading: CircleAvatar(
                  backgroundImage: NetworkImage(event.actor.avatarUrl),
                ),
                title: Text(
                  _getEventTitle(event),
                  style: const TextStyle(fontWeight: FontWeight.bold),
                ),
                subtitle: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Text('仓库: ${event.repo.name}'),
                    Text(
                      '时间: ${timeago.format(event.createdAt, locale: "zh_CN")}',
                    ),
                    if (event.type == 'PushEvent' &&
                        event.payload.commits != null)
                      ...event.payload.commits!.map(
                        (commit) => Text(
                          '提交: ${commit.message}',
                          style: const TextStyle(fontSize: 12),
                        ),
                      ),
                  ],
                ),
                isThreeLine: true,
              ),
            );
          },
        );
      },
    );
  }

  String _getEventTitle(GithubEvent event) {
    switch (event.type) {
      case 'WatchEvent':
        return '${event.actor.login} 关注了 ${event.repo.name}';
      case 'PushEvent':
        return '${event.actor.login} 推送了代码到 ${event.repo.name}';
      case 'CreateEvent':
        return '${event.actor.login} 创建了 ${event.repo.name}';
      case 'ForkEvent':
        return '${event.actor.login} Fork 了 ${event.repo.name}';
      default:
        return '${event.actor.login} 在 ${event.repo.name} 进行了 ${event.type} 操作';
    }
  }
}