Initial commit

lib/utils/scheduler.dart

@@ -0,0 +1,36 @@
+import 'package:reverse_nn/enums/schedule.dart';
+
+class Scheduler {
+  static Schedule getSchedule(DateTime date) {
+    switch(date.weekday) {
+      case DateTime.friday: return Schedule.friday;
+      case DateTime.saturday: return Schedule.saturday;
+      case DateTime.sunday: return Schedule.sunday;
+
+      default: return Schedule.daily;
+    }
+  }
+
+  static List<ScheduleElement> getScheduleList() {
+    List<ScheduleElement> result = List<ScheduleElement>.empty(growable: true);
+
+    DateTime now = DateTime.now();
+    DateTime startSchedule = now.hour < 4 ? now.subtract(const Duration(days: 1)) : now;
+
+    bool currentReached = false;
+    for (ScheduleElement element in [...Scheduler.getSchedule(startSchedule).elements, ...Scheduler.getSchedule(startSchedule.add(const Duration(days: 1))).elements]) {
+      if(!currentReached) {
+        DateTime s = DateTime(now.year, now.month, now.day, element.startHours, element.startMinutes, 0);
+        if(now.compareTo(startSchedule) != 0 && element.startHours >= 4) { s = s.subtract(const Duration(days: 1)); }
+        DateTime e = s.add(Duration(minutes: element.duration)).subtract(const Duration(microseconds: 1));
+
+        if(now.isAfter(s) && now.isBefore(e)) { currentReached = true; }
+        else { continue; }
+      }
+
+      result.add(element);
+    }
+
+    return result;
+  }
+}