import 'package:flutter/material.dart';
import 'package:file_picker/file_picker.dart';
import 'package:provider/provider.dart';
import 'package:win_text_editor/framework/controllers/tab_items_controller.dart';
import 'package:win_text_editor/menus/menu_constants.dart';
import 'package:win_text_editor/framework/controllers/file_provider.dart';
import 'package:collection/collection.dart';
import 'dart:io';

import 'package:win_text_editor/modules/module_router.dart';

class MenuActions {
  static final Map<String, Function(BuildContext)> _actionHandlers = {
    MenuConstants.openFolder: _openFolder,
    MenuConstants.contentSearch: _openContentSearch,
    MenuConstants.templateParser: _openTemplateParser,
    MenuConstants.dataFormat: _dataFormat,
    MenuConstants.dataCompare: _dataCompare,
    MenuConstants.uftFile: _openUftFile,
    MenuConstants.demo: _demo,
    MenuConstants.exit: _exitApplication,
  };

  static Future<void> handleMenuAction(String value, BuildContext context) async {
    final handler = _actionHandlers[value];
    if (handler != null) {
      await handler(context);
    }
  }

  static Future<void> _openFolder(BuildContext context) async {
    try {
      final fileProvider = Provider.of<FileProvider>(context, listen: false);
      final String? selectedDirectory = await FilePicker.platform.getDirectoryPath();
      if (selectedDirectory != null) {
        await fileProvider.loadDirectory(selectedDirectory);
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('打开文件夹失败: $e')));
    }
  }

  static Future<void> _openContentSearch(BuildContext context) async {
    await _openOrActivateTab(context, "内容搜索", RouterKey.contentSearch, Icons.search);
  }

  static Future<void> _openTemplateParser(BuildContext context) async {
    await _openOrActivateTab(context, "XML解析", RouterKey.templateParser, Icons.auto_awesome_mosaic);
  }

  static Future<void> _openUftFile(BuildContext context) async {
    await _openOrActivateTab(context, "UFT文件", RouterKey.uftFile, Icons.drive_file_move);
  }

  static Future<void> _dataFormat(BuildContext context) async {
    await _openOrActivateTab(context, "数据格式化", RouterKey.dataFormat, Icons.date_range);
  }

  static Future<void> _dataCompare(BuildContext context) async {
    await _openOrActivateTab(context, "数据对比", RouterKey.dataCompare, Icons.compare);
  }

  static Future<void> _demo(BuildContext context) async {
    await _openOrActivateTab(context, "Demo", RouterKey.demo, Icons.code);
  }

  static Future<void> _openOrActivateTab(
    BuildContext context,
    String title,
    String type,
    IconData icon,
  ) async {
    try {
      final tabManager = Provider.of<TabItemsController>(context, listen: false);
      final existingTab = tabManager.tabs.firstWhereOrNull((tab) => tab.type == type);

      if (existingTab != null) {
        tabManager.setActiveTab(existingTab.id);
      } else {
        final tabId = DateTime.now().millisecondsSinceEpoch.toString();
        await tabManager.addTab(tabId, title: title, type: type, icon: icon, content: "");
      }
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text('打开标签页失败: $e')));
    }
  }

  static Future<void> _exitApplication(BuildContext context) async {
    final shouldExit = await showDialog<bool>(
      context: context,
      builder:
          (context) => AlertDialog(
            title: const Text('退出应用'),
            content: const Text('确定要退出吗？未保存的内容可能会丢失。'),
            actions: [
              TextButton(
                onPressed: () => Navigator.of(context).pop(false),
                child: const Text('取消'),
              ),
              TextButton(onPressed: () => Navigator.of(context).pop(true), child: const Text('退出')),
            ],
          ),
    );

    if (shouldExit ?? false) {
      exit(0);
    }
  }
}