rubycentral/cfp-app

module Proposal::State
  extend ActiveSupport::Concern

  # TODO: Currently a defect exists in the rake db:migrate task that is
  # causing our files to be loaded more than once. Because our files are being
  # loaded more than once, we are receiving errors stating that these
  # constants have already been defined. Therefore, until this defect is
  # fixed, we need to check to ensure that the constants are not already
  # defined prior to defining them.
  unless const_defined?(:ACCEPTED)
    SOFT_ACCEPTED = 'soft accepted'
    SOFT_WAITLISTED = 'soft waitlisted'
    SOFT_REJECTED = 'soft rejected'

    ACCEPTED = 'accepted'
    WAITLISTED = 'waitlisted'
    REJECTED = 'rejected'
    WITHDRAWN = 'withdrawn'
    NOT_ACCEPTED = 'not accepted'
    SUBMITTED = 'submitted'

    SOFT_STATES = [ SOFT_ACCEPTED, SOFT_WAITLISTED, SOFT_REJECTED, SUBMITTED ]
    FINAL_STATES = [ ACCEPTED, WAITLISTED, REJECTED, WITHDRAWN, NOT_ACCEPTED ]

    SOFT_TO_FINAL = {
      SOFT_ACCEPTED => ACCEPTED,
      SOFT_REJECTED => REJECTED,
      SOFT_WAITLISTED => WAITLISTED,
      SUBMITTED => REJECTED
    }

    BECOMES_PROGRAM_SESSION = [ ACCEPTED, WAITLISTED ]
  end

  included do
    def self.valid_states
      @valid_states ||= Proposal::State.constants.map{|c| const_get(c) if const_get(c).is_a?(String)}.compact!
    end

    # Create all state accessor methods like (accepted?, waitlisted?, etc...)
    Proposal::State.constants.each do |constant|
      next unless const_get(constant).is_a?(String)
      method_name = constant.to_s.downcase + '?'
      define_method(method_name) do
        Proposal::State.const_get(constant) == self.state
      end
    end
  end
end