import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:maibu_satabot_v2/features/main_container/domain/tab_config.dart';

class TabConfigState {
  final TabConfig config;
  final int selectedIndex;

  const TabConfigState({
    required this.config,
    this.selectedIndex = 0,
  });

  TabConfigState copyWith({
    TabConfig? config,
    int? selectedIndex,
  }) {
    return TabConfigState(
      config: config ?? this.config,
      selectedIndex: selectedIndex ?? this.selectedIndex,
    );
  }
}

class TabConfigCubit extends Cubit<TabConfigState> {
  TabConfigCubit() : super(TabConfigState(config: TabConfig.defaultConfig()));

  /// 切换 Tab 的启用状态
  void toggleTab(String tabId) {
    final newConfig = state.config.toggleItem(tabId);
    
    // 如果当前选中的 Tab 被禁用，自动切换到第一个启用的 Tab
    int newIndex = state.selectedIndex;
    if (newIndex >= newConfig.enabledItems.length) {
      newIndex = 0;
    }
    
    emit(state.copyWith(config: newConfig, selectedIndex: newIndex));
  }

  /// 切换选中的 Tab
  void selectTab(int index) {
    if (index >= 0 && index < state.config.enabledItems.length) {
      emit(state.copyWith(selectedIndex: index));
    }
  }

  /// 重置为默认配置
  void resetToDefault() {
    emit(TabConfigState(config: TabConfig.defaultConfig()));
  }
}