class DeviseTokenAuth::InstallGenerator

def self.next_migration_number(path)
  Time.zone.now.utc.strftime('%Y%m%d%H%M%S')
end

def copy_migrations
  if self.class.migration_exists?('db/migrate', "devise_token_auth_create_#{user_class.pluralize.gsub('::','').underscore}")
    say_status('skipped', "Migration 'devise_token_auth_create_#{user_class.pluralize.gsub('::','').underscore}' already exists")
  else
    migration_template(
      'devise_token_auth_create_users.rb.erb',
      "db/migrate/devise_token_auth_create_#{user_class.pluralize.gsub('::','').underscore}.rb"
    )
  end
end

def create_user_model
  fname = "app/models/#{user_class.underscore}.rb"
  if File.exist?(File.join(destination_root, fname))
    inclusion = 'include DeviseTokenAuth::Concerns::User'
    unless parse_file_for_line(fname, inclusion)
      active_record_needle = (Rails::VERSION::MAJOR >= 5) ? 'ApplicationRecord' : 'ActiveRecord::Base'
      inject_into_file fname, after: "class #{user_class} < #{active_record_needle}\n" do <<-'RUBY'
        # Include default devise modules.
        devise :database_authenticatable, :registerable,
                :recoverable, :rememberable, :trackable, :validatable,
                :confirmable, :omniauthable
        include DeviseTokenAuth::Concerns::User
        RUBY
      end
    end
  else
    template('user.rb.erb', fname)
  end
end

def database_name
  ActiveRecord::Base.connection.class.name
end

def database_version
  ActiveRecord::Base.connection.select_value('SELECT VERSION()')
end

def json_supported_database?
  (postgres? && postgres_correct_version?) || (mysql? && mysql_correct_version?)
end

def mysql?
  database_name == 'ActiveRecord::ConnectionAdapters::MysqlAdapter'
end

def mysql_correct_version?
  database_version > '5.7.7'
end

def postgres?
  database_name == 'ActiveRecord::ConnectionAdapters::PostgreSQLAdapter'
end

def postgres_correct_version?
  database_version > '9.3'
end

def primary_key_string
  key_string = options[:primary_key_type]
  ", id: :#{key_string}" if key_string
end

def primary_key_type
  primary_key_string if rails_5_or_newer?
end

def rails_5_or_newer?
  Rails::VERSION::MAJOR >= 5
end