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Client/lib/view/pages/timetable/data/lesson_period_schedule.dart
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2026-05-08 20:12:40 +02:00

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Dart

import 'package:flutter/material.dart';
import '../../../../api/webuntis/queries/get_timegrid_units/get_timegrid_units_response.dart';
import '../../../../state/app/modules/timetable/bloc/timetable_state.dart';
class LessonPeriod {
final String name;
final TimeOfDay start;
final TimeOfDay end;
final bool isBreak;
const LessonPeriod({
required this.name,
required this.start,
required this.end,
this.isBreak = false,
});
Duration get duration => Duration(
minutes: (end.hour * 60 + end.minute) - (start.hour * 60 + start.minute),
);
int get _startMinutes => start.hour * 60 + start.minute;
}
class LessonPeriodSchedule {
final List<LessonPeriod> periods;
const LessonPeriodSchedule(this.periods);
static LessonPeriodSchedule? fromApi(GetTimegridUnitsResponse response) {
final canonical = response.result.firstWhere(
(d) => d.day == 1,
orElse: () => response.result.isNotEmpty
? response.result.first
: GetTimegridUnitsResponseDay(0, []),
);
if (canonical.timeUnits.isEmpty) return null;
final periods =
canonical.timeUnits
.map(
(u) => LessonPeriod(
name: u.name,
start: _fromHHMM(u.startTime),
end: _fromHHMM(u.endTime),
),
)
.toList()
..sort((a, b) => a._startMinutes.compareTo(b._startMinutes));
return LessonPeriodSchedule(periods);
}
static LessonPeriodSchedule fallback() => const LessonPeriodSchedule([
LessonPeriod(
name: '0',
start: TimeOfDay(hour: 7, minute: 10),
end: TimeOfDay(hour: 7, minute: 53),
),
LessonPeriod(
name: '1',
start: TimeOfDay(hour: 7, minute: 55),
end: TimeOfDay(hour: 8, minute: 40),
),
LessonPeriod(
name: '2',
start: TimeOfDay(hour: 8, minute: 40),
end: TimeOfDay(hour: 9, minute: 25),
),
LessonPeriod(
name: '3',
start: TimeOfDay(hour: 9, minute: 30),
end: TimeOfDay(hour: 10, minute: 15),
),
LessonPeriod(
name: '4',
start: TimeOfDay(hour: 10, minute: 35),
end: TimeOfDay(hour: 11, minute: 20),
),
LessonPeriod(
name: '5',
start: TimeOfDay(hour: 11, minute: 25),
end: TimeOfDay(hour: 12, minute: 10),
),
LessonPeriod(
name: '6',
start: TimeOfDay(hour: 12, minute: 15),
end: TimeOfDay(hour: 13, minute: 0),
),
LessonPeriod(
name: '7',
start: TimeOfDay(hour: 13, minute: 5),
end: TimeOfDay(hour: 13, minute: 50),
),
LessonPeriod(
name: '8',
start: TimeOfDay(hour: 14, minute: 5),
end: TimeOfDay(hour: 14, minute: 50),
),
LessonPeriod(
name: '9',
start: TimeOfDay(hour: 14, minute: 50),
end: TimeOfDay(hour: 15, minute: 35),
),
LessonPeriod(
name: '10',
start: TimeOfDay(hour: 15, minute: 40),
end: TimeOfDay(hour: 16, minute: 25),
),
LessonPeriod(
name: '11',
start: TimeOfDay(hour: 16, minute: 25),
end: TimeOfDay(hour: 17, minute: 10),
),
]);
static LessonPeriodSchedule fromState(TimetableState state) {
final fromApi = state.timegrid != null
? LessonPeriodSchedule.fromApi(state.timegrid!)
: null;
return (fromApi ?? fallback()).withSyntheticBreaks();
}
LessonPeriodSchedule withSyntheticBreaks() {
final result = <LessonPeriod>[];
for (var i = 0; i < periods.length; i++) {
final current = periods[i];
result.add(current);
if (i + 1 >= periods.length) continue;
final next = periods[i + 1];
final gapMinutes =
next._startMinutes - (current.end.hour * 60 + current.end.minute);
if (gapMinutes >= 10) {
result.add(
LessonPeriod(
name: 'Pause',
start: current.end,
end: next.start,
isBreak: true,
),
);
}
}
return LessonPeriodSchedule(result);
}
static TimeOfDay _fromHHMM(int hhmm) =>
TimeOfDay(hour: hhmm ~/ 100, minute: hhmm % 100);
}