jsonDecodeDurationInSeconds function

Duration jsonDecodeDurationInSeconds(dynamic value)

Converts a dynamic value to a Duration in seconds.

Handles double values with milliseconds precision. Returns Duration.zero for invalid or null input.

durationInSecondsFromJson('1.5'); // 0:00:01.500000
durationInSecondsFromJson(1.5); // 0:00:01.500000
durationInSecondsFromJson(1); // 0:00:01.000000
durationInSecondsFromJson(null); // 0:00:00.000000

Implementation

Duration jsonDecodeDurationInSeconds(final dynamic value) {
  if (value == null) return Duration.zero;
  Duration handleDouble(final double value) {
    final seconds = value.floorToDouble().toInt();
    return Duration(
      seconds: seconds,
      milliseconds: ((value - seconds) * 1000).toInt(),
    );
  }

  return switch (value) {
    final double value => handleDouble(value),
    final int value => Duration(seconds: value),
    final String value => () {
      final doubleSeconds = double.tryParse(value);
      if (doubleSeconds != null) return handleDouble(doubleSeconds);

      final intSeconds = int.tryParse(value);
      if (intSeconds != null) return Duration(seconds: intSeconds);

      return Duration.zero;
    }(),
    _ => Duration.zero,
  };
}