class MissionAgent < ActiveRecord::Base
  
  extend FriendlyId
  friendly_id :role, use: :slugged
  validates_presence_of :role, :slug
  
  belongs_to :mission
  belongs_to :user
  belongs_to :instance_source, :class_name => "MissionAgent", :foreign_key => "instance_source_id"
  
  has_many :agent_steps, -> { order("position ASC") }, :dependent => :destroy
  has_many :mission_candidates, :dependent => :destroy
  
  has_and_belongs_to_many :rewards
  
  accepts_nested_attributes_for :agent_steps, allow_destroy:true
  accepts_nested_attributes_for :mission_candidates
  
  def is_assigned
    if self.user == nil
      return false
    else
      return true
    end
  end
  
  def incomplete_step_count
    steps = 0
    self.agent_steps.each do |step|
      if step.completed
        steps = steps + 1
      end
    end
    return steps
  end
  
  def has_completed_steps
    if self.incomplete_step_count == 0 && self.agent_steps.count > 0 && self.user != nil
      return true
    else
      return false
    end
  end
  
end