class IsValidMultiparameterDateTimeValidator

# File lib/is_valid_multiparameter_date_time_validator.rb, line 35
def self.invalid_format_error_message
  date_time = Time.zone.parse('1/29/2000 5:15pm')
  date_string = date_time.strftime(MultiparameterDateTime.date_format)
  time_string = date_time.strftime(MultiparameterDateTime.time_format)

  "Please enter a valid date and time using the following formats: #{date_string}, #{time_string}"
end

# File lib/is_valid_multiparameter_date_time_validator.rb, line 51
def date_invalid?(date_value)
  if date_value.present?
    date_invalid = date_value !~ MultiparameterDateTime::VALID_DATE_FORMAT
  end
end

# File lib/is_valid_multiparameter_date_time_validator.rb, line 43
def time_invalid?(time_value)
  if time_value.present?
    time_invalid_standard = time_value !~ MultiparameterDateTime::VALID_STANDARD_TIME_FORMAT
    time_invalid_military = time_value !~ MultiparameterDateTime::VALID_MILITARY_TIME_FORMAT
    time_invalid_standard && time_invalid_military
  end
end

# File lib/is_valid_multiparameter_date_time_validator.rb, line 4
def validate_each(record, attribute, value)
  date_part_key = :"#{attribute}_date_part"
  date_value = record.public_send(date_part_key)

  time_part_key = :"#{attribute}_time_part"
  time_value = record.public_send(time_part_key)

  return if !options[:required] && date_value.blank? && time_value.blank?

  if date_value.blank? && time_value.blank?
    message = "Please enter a date and time for the #{record.class.name.titleize.downcase}."
    record.errors.add(attribute, message)
  elsif date_invalid?(date_value) || time_invalid?(time_value)
    record.errors.add(attribute, self.class.invalid_format_error_message)
  elsif date_value.blank?
    message = record.errors.generate_message(date_part_key, :blank, default: 'Please enter a date.')
    record.errors.add(attribute, message)
  elsif time_value.blank?
    message = record.errors.generate_message(time_part_key, :blank, default: 'Please enter a time.')
    record.errors.add(attribute, message)
  else
    begin
      Date.parse(date_value)
      Time.zone.parse("#{date_value} #{time_value}")
      Time.zone.parse(time_value)
    rescue ArgumentError
      record.errors.add(attribute, self.class.invalid_format_error_message)
    end
  end
end