# frozen_string_literal: true

class Announcement < ApplicationRecord
  has_rich_text :content

  validates :title, presence: true, length: { maximum: 255 }
  validates :content, presence: true

  before_save :unfeature_other_announcements, if: :will_save_change_to_featured?

  scope :latest, -> { order(created_at: :desc) }

  def self.current
    find_by(featured: true)
  end

  def excerpt(limit: 150)
    content&.to_plain_text&.truncate(limit) || ""
  end

  def published_at
    created_at # Alias for semantic clarity
  end

  private

  def unfeature_other_announcements
    return unless featured? && will_save_change_to_featured?(to: true)

    currently_featured = self.class.where(featured: true).where.not(id: id).first
    currently_featured&.update(featured: false)
  end
end