Genshin/GAKUEngine

module Gaku
  class School < ActiveRecord::Base
    include Picture

    has_many :campuses
    has_many :simple_grades
    has_many :levels
    has_many :programs
    has_many :simple_grade_types

    validates :name, presence: true, uniqueness: { case_sensitive: true }

    has_one :master_campus,
            -> { where master: true },
            class_name: 'Gaku::Campus',
            dependent: :destroy

    accepts_nested_attributes_for :levels, allow_destroy: true

    after_create :build_default_campus

    def to_s
      name
    end

    def primary?
      primary
    end

    def self.primary
      where(primary: true).first
    end

    def code_and_name
      "#{code}: #{name}"
    end

    private

    def build_default_campus
      campus = if campuses.any?
                 campuses.first
               else
                 campuses.create(name: name)
               end

      campus.master = true
      campus.save
    end
  end
end