class Dossier < ActiveRecord::Base
  enum state: { draft: 'draft',
      proposed: 'proposed',
      reply: 'reply',
      updated: 'updated',
      confirmed: 'confirmed',
      deposited: 'deposited',
      processed: 'processed' }

  has_one :etablissement, dependent: :destroy
  has_one :entreprise, dependent: :destroy
  has_one :cerfa, dependent: :destroy
  has_many :pieces_justificatives, dependent: :destroy
  belongs_to :procedure
  belongs_to :user
  has_many :commentaires, dependent: :destroy

  delegate :siren, to: :entreprise
  delegate :siret, to: :etablissement
  delegate :types_de_piece_justificative, to: :procedure

  before_create :build_default_cerfa

  after_save :build_default_pieces_justificatives, if: Proc.new { procedure_id_changed? }

  validates :nom_projet, presence: true, allow_blank: false, allow_nil: true
  validates :description, presence: true, allow_blank: false, allow_nil: true
  validates :montant_projet, presence: true, allow_blank: false, allow_nil: true
  validates :montant_aide_demande, presence: true, allow_blank: false, allow_nil: true
  validates :date_previsionnelle, presence: true, allow_blank: false,  unless: Proc.new { description.nil? }
  validates :user, presence: true

   def retrieve_piece_justificative_by_type(type)
     pieces_justificatives.where(type_de_piece_justificative_id: type).last
   end

   def build_default_pieces_justificatives
     procedure.types_de_piece_justificative.each do |type_de_piece_justificative|
       PieceJustificative.create(type_de_piece_justificative_id: type_de_piece_justificative.id, dossier_id: id)
     end
   end

   def sous_domaine
     if Rails.env.production?
       'tps'
     else
       'tps-dev'
     end
   end

   def next_step! role, action
     unless ['propose', 'reply', 'update', 'comment', 'confirme', 'depose', 'process'].include?(action)
       fail 'action is not valid'
     end

     unless ['user', 'gestionnaire'].include?(role)
       fail 'role is not valid'
     end

     if role == 'user'
       case action
         when 'propose'
           if draft?
             proposed!
           end
         when 'depose'
           if confirmed?
             deposited!
           end
         when 'update'
           if reply?
             updated!
           end
         when 'comment'
           if reply?
             updated!
           end
       end
     elsif role == 'gestionnaire'
       case action
         when 'comment'
           if updated?
             reply!
           elsif proposed?
             reply!
           end
         when 'confirme'
           if updated?
             confirmed!
           elsif reply?
             confirmed!
           elsif proposed?
             confirmed!
           end
         when 'process'
           if deposited?
             processed!
           end
       end
     end
     state
   end

   private

   def build_default_cerfa
     build_cerfa
     true
   end
end