dawarich/app/models/trip.rb

# frozen_string_literal: true

class Trip < ApplicationRecord
  include Calculateable
  include DistanceConvertible

  has_rich_text :notes

  belongs_to :user

  validates :name, :started_at, :ended_at, presence: true
  validate :started_at_before_ended_at

  after_create :enqueue_calculation_jobs
  after_update :enqueue_calculation_jobs, if: -> { saved_change_to_started_at? || saved_change_to_ended_at? }

  def enqueue_calculation_jobs
    Trips::CalculateAllJob.perform_later(id, user.safe_settings.distance_unit)
  end

  def points
    user.points.where(timestamp: started_at.to_i..ended_at.to_i).order(:timestamp)
  end

  def photo_previews
    @photo_previews ||= select_dominant_orientation(photos).sample(12)
  end

  def photo_sources
    @photo_sources ||= photos.map { _1[:source] }.uniq
  end

  def calculate_countries
    self.visited_countries = points.pluck(:country_name).uniq.compact
  end

  private

  def photos
    @photos ||= Trips::Photos.new(self, user).call
  end

  def select_dominant_orientation(photos)
    vertical_photos = photos.select { |photo| photo[:orientation] == 'portrait' }
    horizontal_photos = photos.select { |photo| photo[:orientation] == 'landscape' }

    # this is ridiculous, but I couldn't find my way around frontend
    # to show all photos in the same height
    vertical_photos.count > horizontal_photos.count ? vertical_photos : horizontal_photos
  end

  def started_at_before_ended_at
    return if started_at.blank? || ended_at.blank?
    return unless started_at >= ended_at

    errors.add(:ended_at, 'must be after start date')
  end
end