fromIso8601 method

DurationStrings fromIso8601(PaywallLocalizations paywallIntl)

ISO Codes such as P1W, P3W, P2Y etc.

You can get the PaywallLocalizations with PaywallL10NHelper.of(context)

Implementation

DurationStrings fromIso8601(PaywallLocalizations paywallIntl) {
  final regex = RegExp(r'(\d+)([A-Z])');
  final match = regex.firstMatch(this);
  final amount = int.parse(match!.group(1)!);
  final unitString = match.group(2);

  if (unitString == null) {
    throw ArgumentError("String does not have a format of P1D, P1W, P1M, P1Y ");
  }
  return switch (unitString) {
    "D" => DurationStrings(
        durationText: paywallIntl.day,
        durationTextNumber: paywallIntl.nday(amount),
        durationType: paywallIntl.day,
        durationNumber: amount),
    "W" => DurationStrings(
        durationText: paywallIntl.weekly,
        durationTextNumber: paywallIntl.nweek(amount),
        durationType: paywallIntl.week,
        durationNumber: amount),
    "M" => switch (amount) {
        3 => DurationStrings(
            durationText: paywallIntl.quarterly,
            durationTextNumber: paywallIntl.nmonth(amount),
            durationType: paywallIntl.month,
            durationNumber: amount),
        6 => DurationStrings(
            durationText: paywallIntl.biannual,
            durationTextNumber: paywallIntl.nmonth(6),
            durationType: paywallIntl.month,
            durationNumber: 6),
        _ => DurationStrings(
            durationText: paywallIntl.monthly,
            durationTextNumber: paywallIntl.nmonth(amount),
            durationType: paywallIntl.month,
            durationNumber: amount)
      },
    "Y" => DurationStrings(
        durationText: paywallIntl.yearly,
        durationTextNumber: paywallIntl.nyear(amount),
        durationType: paywallIntl.year,
        durationNumber: amount),
    _ => throw ArgumentError()
  };
}