int32.cr

class Lux::Int32Param < Lux::Param
  # Return the parsed/casted, validated value or raise a ValidationError.
  # Do not allow any other Exceptions to raise from here (that would cause a HTTP 500).
  def initialize(@minimum : Int32? = nil,
                 @maximum : Int32? = nil)
  end

  def openapi(name, source, description, required)
    # todo
    nil
  end

  def from_string(value)
    begin
      retval = Int32.new(value)
    rescue
      error!("format", "int32", "must be a number")
    end
    if @maximum && retval > @maximum.not_nil!
      error!("maximum", @maximum.not_nil!, "is too big (allowed range: #{@minimum}-#{@maximum})")
    elsif @minimum && retval < @minimum.not_nil!
      error!("minimum", @minimum.not_nil!, "is too small (allowed range: #{@minimum}-#{@maximum})")
    end
    retval
  end
end