class RuboCop::Cop::Rails::Validation


validates :foo, uniqueness: true
validates :foo, size: true
validates :foo, presence: true
validates :foo, numericality: true
validates :foo, length: true
validates :foo, inclusion: true
validates :foo, format: true
validates :foo, exclusion: true
validates :foo, confirmation: true
validates :foo, acceptance: true
# good
validates_uniqueness_of :foo
validates_size_of :foo
validates_presence_of :foo
validates_numericality_of :foo
validates_length_of :foo
validates_inclusion_of :foo
validates_format_of :foo
validates_exclusion_of :foo
validates_confirmation_of :foo
validates_acceptance_of :foo
# bad
@example
This cop checks for the use of old-style attribute validation macros.

def autocorrect(node) 

def autocorrect(node)
  last_argument = node.arguments.last
  return if !last_argument.literal? && !last_argument.splat_type?
  lambda do |corrector|
    corrector.replace(node.loc.selector, 'validates')
    correct_validate_type(corrector, node)
  end
end

def braced_options(options) 

def braced_options(options)
  if options.braces?
    options.source
  else
    "{ #{options.source} }"
  end
end

def correct_validate_type(corrector, node) 

def correct_validate_type(corrector, node)
  last_argument = node.arguments.last
  validate_type = node.method_name.to_s.split('_')[1]
  if last_argument.hash_type?
    corrector.replace(
      last_argument.loc.expression,
      "#{validate_type}: #{braced_options(last_argument)}"
    )
  else
    range = last_argument.source_range
    corrector.insert_after(range, ", #{validate_type}: true")
  end
end

def message(node) 

def message(node)
  format(MSG, prefer: preferred_method(node.method_name),
              current: node.method_name)
end

def on_send(node) 

def on_send(node)
  return unless !node.receiver && DENYLIST.include?(node.method_name)
  add_offense(node, location: :selector)
end

def preferred_method(method) 

def preferred_method(method)
  ALLOWLIST[DENYLIST.index(method.to_sym)]
end