class TicketReport < ActiveRecord::Base
  belongs_to :project
  serialize :filter_options, Hash

  validates_presence_of :name, :project_id
  validates_uniqueness_of :name, :scope => :project_id
    
  def time_interval=(interval_hash)
    if !interval_hash.blank? && interval_hash[:count] && 
        interval_hash[:count].to_i > 0 && ['days', 'weeks', 'months'].include?(interval_hash[:units])
                
      seconds = eval("#{interval_hash[:count]}.#{interval_hash[:units]}")    
      if seconds && seconds.to_i > 0    
        write_attribute(:time_interval, seconds)
        return true
      end
    end
    write_attribute(:time_interval, nil)    
  end

  def filter_options
    filter_options = read_attribute(:filter_options)
    filter_options.is_a?(Hash) ? filter_options : {}
  end
  
  def since_date
    return nil if time_interval.blank? || time_interval.to_i < 1
    Time.now - time_interval
  end

  def user_specific?
    filter_options.key?(:my_tickets)  
  end

  protected
  
    def validate
      if filter_options.blank?
        self.errors.add(:filter_options, 'must be specified')
      end
    end
  
end