import 'dart:ffi';

import 'package:flutter/material.dart';
import 'package:provider/provider.dart';
import 'package:http/http.dart' as http;
import 'dart:convert';
import '../services/auth_service.dart';
import '../services/kodbox_service.dart';
import 'package:timeago/timeago.dart' as timeago;
import 'package:url_launcher/url_launcher.dart';

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

  @override
  State<KodBoxCard> createState() => _KodBoxCardState();
}

class _KodBoxCardState extends State<KodBoxCard> {
  List<dynamic> _logs = [];
  bool _isLoading = false;
  String? _error;
  final _kodboxService = KodBoxService();

  Future<void> _fetchLogs() async {
    setState(() {
      _isLoading = true;
      _error = null;
    });

    try {
      final authService = Provider.of<AuthService>(context, listen: false);
      final token = await _kodboxService.getValidToken(authService);

      // 计算时间范围（最近7天）
      final now = DateTime.now();
      final sevenDaysAgo = now.subtract(const Duration(days: 7));
      final timeTo = (now.millisecondsSinceEpoch / 1000).round();
      final timeFrom = (sevenDaysAgo.millisecondsSinceEpoch / 1000).round();

      final request = http.MultipartRequest(
        'POST',
        Uri.parse('${KodBoxService.baseUrl}/?admin/log/get&accessToken=$token'),
      );

      request.fields.addAll({
        'page': '1',
        'pageNum': '50',
        'sortField': 'createTime',
        'sortType': 'down',
        'timeFrom': timeFrom.toString(),
        'timeTo': timeTo.toString(),
      });

      final response = await request.send();
      final responseBody = await response.stream.bytesToString();

      if (response.statusCode == 200) {
        final data = jsonDecode(responseBody);
        if (data['code'] == true) {
          setState(() {
            _logs = data['data'];
            _isLoading = false;
          });
        } else {
          throw Exception('请求失败: ${data['info'] ?? '未知错误'}');
        }
      } else {
        throw Exception('请求失败: ${response.statusCode}');
      }
    } catch (e) {
      setState(() {
        _error = e.toString();
        _isLoading = false;
      });
    }
  }

  String _getFilePath(Map<String, dynamic> desc) {
    if (desc['sourceInfo'] == false) {
      // 处理删除文件的情况
      final parentInfo = desc['parentInfo'];
      final fileName = desc['desc']?['content'] ?? '未知文件';
      return '${parentInfo['pathDisplay']}$fileName';
    } else if (desc['sourceInfo'] != null) {
      return desc['sourceInfo']['pathDisplay'] ?? '未知路径';
    }
    return '未知路径';
  }

  int? _getSourceID(Map<String, dynamic> desc) {
    if (desc['sourceInfo'] == false) {
      // 处理删除文件的情况
      return desc['parentInfo']?['sourceID'];
    } else if (desc['sourceInfo'] != null) {
      return desc['sourceInfo']?['sourceID'];
    }
    return null;
  }

  Future<void> _launchFileUrl(int sourceID) async {
    final url = Uri.parse('${KodBoxService.baseUrl}/#explorer&sidf=$sourceID');
    if (await canLaunchUrl(url)) {
      await launchUrl(url);
    } else {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          const SnackBar(content: Text('无法打开文件链接')),
        );
      }
    }
  }

  Widget _buildLogItem(Map<String, dynamic> log) {
    final desc = log['desc'];
    final isFileOperation = desc != null &&
        (desc['sourceInfo'] != null || desc['parentInfo'] != null);

    final sourceID = isFileOperation ? _getSourceID(desc) : null;

    return Card(
      margin: const EdgeInsets.symmetric(vertical: 4.0),
      child: InkWell(
        onTap: sourceID != null ? () => _launchFileUrl(sourceID) : null,
        child: Padding(
          padding: const EdgeInsets.all(12.0),
          child: Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: [
              Row(
                children: [
                  CircleAvatar(
                    radius: 16,
                    child: Text(log['nickName']?[0].toUpperCase() ?? '?'),
                  ),
                  const SizedBox(width: 8),
                  Text(
                    log['nickName'] ?? log['name'] ?? '未知用户',
                    style: const TextStyle(fontWeight: FontWeight.bold),
                  ),
                  const SizedBox(width: 8),
                  Text(log['title'] ?? '未知操作'),
                ],
              ),
              if (isFileOperation) ...[
                const SizedBox(height: 8),
                Text(
                  '文件路径: ${_getFilePath(desc)}',
                  style: TextStyle(
                    color: sourceID != null ? Colors.blue : Colors.black,
                  ),
                ),
              ],
              const SizedBox(height: 8),
              Text(
                '时间: ${timeago.format(DateTime.fromMillisecondsSinceEpoch(int.parse(log['createTime']) * 1000), locale: 'zh_CN')}',
                style: const TextStyle(fontSize: 12, color: Colors.grey),
              ),
            ],
          ),
        ),
      ),
    );
  }

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

  @override
  Widget build(BuildContext context) {
    return Card(
      child: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          crossAxisAlignment: CrossAxisAlignment.start,
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                const Text(
                  'KodBox 最近操作',
                  style: TextStyle(fontSize: 18, fontWeight: FontWeight.bold),
                ),
                IconButton(
                  icon: const Icon(Icons.refresh),
                  onPressed: _isLoading ? null : _fetchLogs,
                ),
              ],
            ),
            if (_isLoading)
              const Center(
                child: Padding(
                  padding: EdgeInsets.all(16.0),
                  child: CircularProgressIndicator(),
                ),
              )
            else if (_error != null)
              Center(
                child: Padding(
                  padding: const EdgeInsets.all(16.0),
                  child: Text(
                    _error!,
                    style: const TextStyle(color: Colors.red),
                  ),
                ),
              )
            else if (_logs.isEmpty)
              const Center(
                child: Padding(
                  padding: EdgeInsets.all(16.0),
                  child: Text('暂无操作记录'),
                ),
              )
            else
              Expanded(
                child: ListView.builder(
                  itemCount: _logs.length,
                  itemBuilder: (context, index) {
                    return _buildLogItem(_logs[index]);
                  },
                ),
              ),
          ],
        ),
      ),
    );
  }
}