getStartAndEndTimestamps static method

int? getStartAndEndTimestamps({ required FilterType type, })

Implementation

static int? getStartAndEndTimestamps({required FilterType type}) {
  int? startTimeInMillis;

  //filter types
  const lastHour = "FilterType.LAST_HOUR";
  const twentyFourHour = "FilterType.LAST_24_HOURS";
  const today = "FilterType.TODAY";
  const week = "FilterType.WEEK";
  const all = "FilterType.ALL";

  //switch statement
  switch (type.toString()) {
    case lastHour:
      // data/time now
      var now = DateTime.now();
      // last hour
      var lh = now.subtract(Duration(hours: 1));
      print(lh);
      startTimeInMillis = lh.millisecondsSinceEpoch;
      break;
    case twentyFourHour:
      // data/time now
      var now = DateTime.now();
      // last twenty four hours from now
      var tfh = now.subtract(Duration(hours: 24));
      //print
      if (FLog.getDefaultConfigurations().isDevelopmentDebuggingEnabled) {
        print(tfh);
      }

      startTimeInMillis = tfh.millisecondsSinceEpoch;
      break;
    case today:
      // data/time now
      var now = DateTime.now();
      // midnight today
      var td = DateTime(now.year, now.month, now.day);
      //print
      if (FLog.getDefaultConfigurations().isDevelopmentDebuggingEnabled) {
        print(td);
      }

      startTimeInMillis = td.millisecondsSinceEpoch;
      break;
    case week:
      // data/time now
      var now = DateTime.now();
      // midnight today
      var td = DateTime(now.year, now.month, now.day);
      // last week from today
      var w = td.subtract(Duration(days: 7));
      //print
      if (FLog.getDefaultConfigurations().isDevelopmentDebuggingEnabled) {
        print(w);
      }

      startTimeInMillis = w.millisecondsSinceEpoch;
      break;
    case all:
      // all: i am going to set it to 2019, coz i wrote this library in 2019
      // no need to go all the way back to 1970
      var all = DateTime(2019, 1, 1);

      //print
      if (FLog.getDefaultConfigurations().isDevelopmentDebuggingEnabled) {
        print(all);
      }

      startTimeInMillis = all.millisecondsSinceEpoch;
      break;
  }

  return startTimeInMillis;
}