class WeatherArt < ApplicationRecord
  extend FriendlyId
  friendly_id :weather_date, use: :slugged

  belongs_to :city
  has_one_attached :image
  has_one_attached :image_with_watermark

  has_many :visits, class_name: "Ahoy::Visit", foreign_key: :weather_art_id
  has_many :events, class_name: "Ahoy::Event", foreign_key: :weather_art_id

  validates :weather_date, presence: true
  validates :city_id, presence: true

  scope :by_popularity, -> {
    if ActiveRecord::Base.connection.adapter_name.downcase == "sqlite"
      joins("LEFT JOIN ahoy_events ON json_extract(ahoy_events.properties, '$.weather_art_id') = weather_arts.id
             AND json_extract(ahoy_events.properties, '$.event_type') = 'weather_art_view'")
        .group("weather_arts.id")
        .select("weather_arts.*, COUNT(ahoy_events.id) as visit_count")
        .order("visit_count DESC")
    else
      joins("LEFT JOIN ahoy_events ON (ahoy_events.properties::jsonb->>'weather_art_id')::integer = weather_arts.id
             AND ahoy_events.properties::jsonb->>'event_type' = 'weather_art_view'")
        .group("weather_arts.id")
        .select("weather_arts.*, COUNT(ahoy_events.id) as visit_count")
        .order("visit_count DESC")
    end
  }

  def should_generate_new_friendly_id?
    weather_date_changed? || city_id_changed? || super
  end

  def to_s
    "#{city.name} - #{weather_date.strftime('%Y-%m-%d')}"
  end

  def self.ransackable_associations(auth_object = nil)
    [ "city", "image_attachment", "image_blob" ]
  end

  def self.ransackable_attributes(auth_object = nil)
    [ "city_id", "cloud", "created_at", "description", "feeling_temp", "humidity", "id", "id_value", "precipitation", "pressure", "prompt", "temperature", "updated_at", "visibility", "weather_date", "wind_scale", "wind_speed" ]
  end

  def view_count
    if ActiveRecord::Base.connection.adapter_name.downcase == "sqlite"
      Ahoy::Event.where("json_extract(properties, '$.event_type') = 'weather_art_view' AND json_extract(properties, '$.weather_art_id') = ?", self.id).count
    else
      Ahoy::Event.where("properties::jsonb->>'event_type' = 'weather_art_view' AND (properties::jsonb->>'weather_art_id')::integer = ?", self.id).count
    end
  end

  def image_url
    image.attached? ? image.blob : nil
  end
end