syncrow-app/lib/features/scene/helper/scene_logic_helper.dart

import 'package:flutter/material.dart';
import 'package:flutter_bloc/flutter_bloc.dart';
import 'package:syncrow_app/features/app_layout/bloc/home_cubit.dart';
import 'package:syncrow_app/features/scene/bloc/create_scene/create_scene_bloc.dart';
import 'package:syncrow_app/features/scene/model/create_scene_model.dart';
import 'package:syncrow_app/features/scene/model/scene_static_function.dart';
import 'package:syncrow_app/utils/context_extension.dart';

mixin SceneLogicHelper {
  bool isOnlyDelayOrDelayLast(List<SceneStaticFunction> tasks) {
    final lastTask = tasks.last;
    return tasks.every((task) => task.code == 'delay') ||
        lastTask.code == 'delay';
  }

  void handleSaveButtonPress(
    BuildContext context,
    TextEditingController sceneNameController,
    List<SceneStaticFunction> tasks,
  ) {
    if (isOnlyDelayOrDelayLast(tasks)) {
      // Show snackbar indicating restriction
      context.showCustomSnackbar(
        message: 'Only a single delay or delay-last operations are allowed.',
        icon: const Icon(
          Icons.error,
          color: Colors.red,
        ),
      );
    } else {
      final createSceneModel = CreateSceneModel(
        unitUuid: HomeCubit.getInstance().selectedSpace!.id ?? '',
        sceneName: sceneNameController.text,
        decisionExpr: 'and',
        actions: List.generate(
          tasks.length,
          (index) {
            final task = tasks[index];
            if (task.code == 'delay') {
              return CreateSceneAction(
                entityId: tasks[index].deviceId,
                actionExecutor: 'delay',
                executorProperty: CreateSceneExecutorProperty(
                  functionCode: task.code,
                  functionValue: task.operationalValues.first.value,
                  delaySeconds: 0,
                ),
              );
            }
            return CreateSceneAction(
              entityId: task.deviceId,
              actionExecutor: 'device_issue',
              executorProperty: CreateSceneExecutorProperty(
                functionCode: task.code,
                functionValue: task.operationalValues.first.value,
                delaySeconds: 0,
              ),
            );
          },
        ),
      );
      context
          .read<CreateSceneBloc>()
          .add(CreateSceneWithTasksEvent(createSceneModel: createSceneModel));

      Navigator.pop(context);
    }
  }
}