import { processPendingFoodLogs } from '@/add-log/food-detection/foodLogProcessor';
import { uploadPendingPhotos } from '@/add-log/photo/uploadService';
import * as BackgroundTask from 'expo-background-task';
import * as TaskManager from 'expo-task-manager';

const TASK_NAME = 'palace-foodlog-processor';

TaskManager.defineTask(TASK_NAME, async () => {
  try {
    await processPendingFoodLogs();
    await uploadPendingPhotos();
    return BackgroundTask.BackgroundTaskResult.Success;
  } catch {
    return BackgroundTask.BackgroundTaskResult.Failed;
  }
});

export async function initBackgroundProcessing(): Promise<void> {
  const status = await BackgroundTask.getStatusAsync();
  if (status !== BackgroundTask.BackgroundTaskStatus.Available) {
    return;
  }
  const tasks = await TaskManager.getRegisteredTasksAsync();
  const alreadyRegistered = tasks.some(task => task.taskName === TASK_NAME);
  if (!alreadyRegistered) {
    await BackgroundTask.registerTaskAsync(TASK_NAME, {
      minimumInterval: 15,
    });
  }
}

export async function runPendingTasks(): Promise<void> {
  await processPendingFoodLogs();
  await uploadPendingPhotos();
}