class Hat < ActiveRecord::Base
  belongs_to :user
  belongs_to :granted_by_user,
    :class_name => "User"

  validates :user, :presence => true
  validates :granted_by_user, :presence => true

  after_create :log_moderation

  def destroy_by_user_with_reason(user, reason)
    m = Moderation.new
    m.user_id = self.user_id
    m.moderator_user_id = user.id
    m.action = "Revoked hat \"#{self.hat}\": #{reason}"
    m.save!

    self.destroy
  end

  def to_html_label
    hl = (self.link.present? && self.link.match(/^https?:\/\//))

    h = I18n.t 'models.hat.grantedby', :hat => "#{self.hat.gsub(/[^A-Za-z0-9]/, "_").downcase}", :inviteuser => "#{self.granted_by_user.username}", :invitedate => "#{self.created_at.strftime("%Y-%m-%d")}"

    if !hl && self.link.present?
      h << " - #{ERB::Util.html_escape(self.link)}"
    end

    h << "\">" <<
      "<span class=\"crown\">"

    if hl
      h << "<a href=\"#{ERB::Util.html_escape(self.link)}\" target=\"_blank\">"
    end

    h << ERB::Util.html_escape(self.hat)

    if hl
      h << "</a>"
    end

    h << "</span></span>"

    h.html_safe
  end

  def log_moderation
    m = Moderation.new
    m.created_at = self.created_at
    m.user_id = self.user_id
    m.moderator_user_id = self.granted_by_user_id
    m.action = "Granted hat \"#{self.hat}\"" + (self.link.present? ?
      " (#{self.link})" : "")
    m.save
  end
end