notifications_concept.dart

class NotificationController extends SimpleNotifications {
  DateTime? trialExpiring = DateTime(2025, 2, 7, 6);
  var winback = true;
  var remindWorkouts = true;
  var aiGirlfriendMessages = {
    Duration(hours: 1): "whats up?",
    Duration(hours: 2): "where are you?",
    Duration(hours: 3): "do you still love me??",
  };

  List<Notification> get notifications => [
        if (remindWorkouts)
          for (final h in [6, 12, 17])
            Notification(
              title: "Log your workout!",
              schedule: Schedule.every(
                const Duration(days: 1),
                starting: DateTime.now().copyWith(hour: h),
                time: Time.wallClock(),
              ),
            ),
        if (winback)
          Notification(
            title: "We have a discount for you!",
            urgency: Urgency.high,
            schedule: Schedule.afterBackground(
              delay: const Duration(seconds: 5),
            ),
          ),
        for (final MapEntry(key: d, value: m) in aiGirlfriendMessages.entries)
          Notification(
            title: "Sheila",
            subtitle: m,
            schedule: Schedule.afterBackground(
              delay: d,
            ),
          ),
        if (trialExpiring != null)
          Notification(
            title: "Your trial is about to expire",
            urgency: Urgency.subtle,
            schedule: Schedule.once(
              at: trialExpiring!.subtract(const Duration(hours: 1)),
              time: Time.actual(),
            ),
          ),
      ];

  void update() => scheduleNotifications();
}

abstract class SimpleNotifications {
  List<Notification> get notifications;
  void scheduleNotifications() {}
}

class Notification {
  Notification({
    String? title,
    String? subtitle,
    Enum? priority,
    bool? sound,
    bool? vibrate,
    Schedule? schedule,
    Urgency? urgency,
  });
}

class Schedule {
  Schedule.once({
    DateTime? at,
    Time? time,
  });

  Schedule.every(
    Duration interval, {
    DateTime? starting,
    Time? time,
  });

  Schedule.afterBackground({
    Duration? delay,
  });
}

class Time {
  Time.wallClock();
  Time.actual();
}

enum Urgency {
  high,
  normal,
  subtle,
}