const NotificationModel = require('../models/NotificationModel')
const AcademyModel = require('../models/AcademyModel')

const LIKE_TITLE = 'پست شما لایک شد'
const LIKE_DESCRIPTION = 'پست شما لایک شد'

const createLikeNotification = async ({
  ownerId,
  likerId,
  entityId,
  type = 'post_like'
}) => {
  try {
    if (!ownerId || !likerId || !entityId) return
    if (String(ownerId) === String(likerId)) return

    await NotificationModel.create({
      user_id: ownerId,
      project_post_id: entityId,
      type,
      title: LIKE_TITLE,
      description: LIKE_DESCRIPTION
    })
  } catch (error) {
    console.error('Error creating like notification:', error)
  }
}

const resolveCourseOwnerId = async (course) => {
  if (course?.user_id) {
    return course.user_id
  }

  if (course?.academyId) {
    const academy = await AcademyModel.findById(course.academyId)
    if (academy?.userId) {
      return academy.userId
    }
  }

  return null
}

module.exports = {
  createLikeNotification,
  resolveCourseOwnerId
}