require 'rails/generators/base'

# Je me suis servi de :

# - la documentation des generators
# https://guides.rubyonrails.org/generators.html

# - Depuis Rails 3.0, la gem Thor permet de manipuler facilement des fichiers, dont create_file et inject_into_file
# https://github.com/erikhuda/thor
# https://www.rubydoc.info/github/wycats/thor/master/Thor/Actions/InjectIntoFile
module DeviseTokenAuthenticatable
  class InitializerGenerator < Rails::Generators::Base
    desc "This generator initializes devise_token_authenticatable's gem configs"

    ## Déclaration des constantes

    SESSIONS_COMMENT_LINE = "# SessionsController generated by devise_token_authenticatable\n\n"
    REGISTRATIONS_COMMENT_LINE = "# RegistrationsController generated by devise_token_authenticatable\n\n"

    ## Initialisation SessionsController

    def create_sessions_controller
      # Possible de le faire en une seule ligne avec un create_file(file, content)
      # J'ai utilisé deux lignes pour la PR pour utiliser les fonctions de Thor
      create_file 'app/controllers/users/sessions_controller.rb', InitializerGenerator::SESSIONS_COMMENT_LINE
      inject_into_file "app/controllers/users/sessions_controller.rb", write_sessions_controller, after: InitializerGenerator::SESSIONS_COMMENT_LINE
    end

    def write_sessions_controller
<<RUBY
class Users::SessionsController < Devise::SessionsController
  def create
    super do
      set_user_access_token!
    end
  end
end
RUBY
    end

    ## Initialisation RegistrationsController

    def create_registrations_controller
      create_file 'app/controllers/users/registrations_controller.rb', InitializerGenerator::REGISTRATIONS_COMMENT_LINE
      inject_into_file "app/controllers/users/registrations_controller.rb", write_registrations_controller, after: InitializerGenerator::REGISTRATIONS_COMMENT_LINE
    end

    def write_registrations_controller
<<RUBY
class Users::RegistrationsController < Devise::RegistrationsController
  prepend_before_action :set_user_access_token!, only: %i[edit update destroy]
end
RUBY
    end
  end
end