Line data    Source code

       1              : import 'package:localization/localization.dart';
       2              : 
       3              : enum DurationScale { SECONDS, MINUTES, HOURS, DAYS, WEEKS, MONTHS, YEARS }
       4              : 
       5              : class DurationUnit {
       6              :   final DurationScale scale;
       7              :   final int value;
       8              :   final double limit;
       9              : 
      10            0 :   DurationUnit(this.scale, this.value, this.limit);
      11              : }
      12              : 
      13              : extension TimeNotation on Duration {
      14            0 :   static Map<DurationScale, String> defaultFormats = {
      15              :     DurationScale.SECONDS: "%SS",
      16              :     DurationScale.MINUTES: "%mm",
      17              :     DurationScale.HOURS: "%HH.",
      18              :     DurationScale.DAYS: "%DD.",
      19              :     DurationScale.MONTHS: "%MM",
      20              :     DurationScale.YEARS: "%YY"
      21              :   };
      22              : 
      23            0 :   String durationFormat({Map<DurationScale, String>? formats}) {
      24            0 :     final thresholds = [
      25            0 :       DurationUnit(DurationScale.SECONDS, inSeconds, 60),
      26            0 :       DurationUnit(DurationScale.MINUTES, inMinutes, 60),
      27            0 :       DurationUnit(DurationScale.HOURS, inHours, 24),
      28            0 :       DurationUnit(DurationScale.DAYS, inDays, 30),
      29            0 :       DurationUnit(DurationScale.MONTHS, inDays ~/ 30, 12),
      30            0 :       DurationUnit(
      31            0 :           DurationScale.YEARS, (inDays / 365.25).floor(), double.infinity),
      32              :     ];
      33              : 
      34            0 :     for (final unit in thresholds) {
      35            0 :       if (unit.value < unit.limit) {
      36            0 :         final format = formats?[unit.scale] ?? defaultFormats[unit.scale]!;
      37              :         return format
      38            0 :             .replaceAll(RegExp("%SS"),
      39            0 :                 "${inSeconds.toString().i18n()} ${"acronym.datetime.seconds".i18n()}")
      40            0 :             .replaceAll(RegExp("%mm"),
      41            0 :                 "${inMinutes.toString()} ${"acronym.datetime.minutes".i18n()}")
      42            0 :             .replaceAll(RegExp("%HH"),
      43            0 :                 "${inHours.toString()} ${"acronym.datetime.hours".i18n()}")
      44            0 :             .replaceAll(RegExp("%DD"),
      45            0 :                 "${inDays.toString()} ${"acronym.datetime.days".i18n()}")
      46            0 :             .replaceAll(
      47            0 :                 RegExp("%MM"),
      48            0 :                 "${(inDays ~/ 30).toString()} ${"acronym.datetime.months".i18n([], [
      49            0 :                       (inDays ~/ 30) > 1
      50            0 :                     ])}")
      51            0 :             .replaceAll(
      52            0 :                 RegExp("%YY"),
      53            0 :                 "${(inDays / 365.25).floor().toString()} ${'acronym.datetime.years'.i18n([], [
      54            0 :                       (inDays / 365.25).floor() > 1
      55            0 :                     ])}");
      56              :       }
      57              :     }
      58              : 
      59            0 :     throw Exception("The impossible has happened");
      60              :   }
      61              : }