# typed: strict

module DataModel
	class Builtin::Boolean < Type
		include Errors

		class Arguments < T::Struct
			prop :optional, T::Boolean, default: false
		end

		sig { override.params(val: Object, coerce: T::Boolean).returns(TTypeResult) }
		def read(val, coerce: false)
			err = Error.new

			if val.nil?
				err.add(missing_error(DataModel::Boolean))
				return [val, err]
			end

			if coerce
				case val
				when "true"
					val = true
				when "false"
					val = false
				end
			end

			if !val.is_a?(TrueClass) && !val.is_a?(FalseClass)
				err.add(type_error(Boolean, val))
				return [val, err]
			end

			return [val, err]
		end
	end
end