# frozen_string_literal

# Form object for authenticating <%= class_name %> records.
# Automatically generated by the orthodox gem (https://github.com/katanacode/orthodox)
# (c) Copyright 2019 Katana Code Ltd. All Rights Reserved. 
class <%= class_name %>Session
  
  include ActiveModel::Model
  include ActiveModel::Attributes

  INVALID_CREDENTIALS = "These credentials don't look valid"
  
  # ======================================================================================
  # = Attributes                                                                         =
  # ======================================================================================
  
  ##
  # The authenticated <%= class_name %> if authentication is successful
  #
  # Returns ApplicationRecord
  attr_accessor :<%= singular_name %>

  ##
  # The provided email address String
  #
  # Returns String
  attribute :email, :string
  
  ##
  # The provided password String
  #
  # Returns String
  attribute :password, :string


  # ======================================================================================
  # = Validations                                                                        =
  # ======================================================================================
  
  validates :email, presence: true, email_format: { allow_blank: true }
  
  validates :password, presence: true
  
  validate :record_authenticateable
  
  validate :password_matches
  
  
  private
  
  
  # If the record can be loaded from the scope, sets <%= singular_name %>, otherwise
  # adds errors to :base
  #
  def record_authenticateable
    <%= singular_name %> = <%= singular_name %>_scope.find_by(email: email)
    if <%= singular_name %>.present?
      self.<%= singular_name %> = <%= singular_name %>
    else
      errors.add(:base, INVALID_CREDENTIALS)
    end
  end
  
  # If the password isn't correct, add errors to :base
  def password_matches
    return unless <%= singular_name %>
    unless <%= singular_name %>.authenticate(password)
      errors.add(:base, INVALID_CREDENTIALS)
    end
  end
  
  # The scope to load <%= plural_class_name %> through. Modify this if there are 
  # particular conditions that records should be filtered by.
  #
  # Returns ActiveRecord::Relation
  def <%= singular_name %>_scope
    <%= class_name %>.all
  end
  
end