app/lib/state/timeStatusState.dart

import 'dart:async';

import 'package:flutter/material.dart';

class TimeStatusState extends ChangeNotifier {
  final TimeOfDay legalStart = const TimeOfDay(hour: 20, minute: 00);
  final TimeOfDay legalEnd = const TimeOfDay(hour: 07, minute: 00);

  late Timer _refreshTimer;

  TimeStatusState() {
    _refreshTimer = Timer.periodic(const Duration(seconds: 1), (timer) {
      notifyListeners();
    });
  }

  bool get isCurrentlyLegal {
    final now = TimeOfDay.now();
    final currentTime = DateTime.now();

    final startDateTime = DateTime(currentTime.year, currentTime.month, currentTime.day, legalStart.hour, legalStart.minute);
    final currentDateTime = currentTime.subtract(Duration(hours: now.hour, minutes: now.minute));

    return currentDateTime.isBefore(startDateTime);
  }

  Duration get remainingTimeUntilStart {
    final now = DateTime.now();
    final today = DateTime(now.year, now.month, now.day);
    final targetDateTime = today.add(Duration(hours: legalStart.hour, minutes: legalStart.minute));

    if (now.isBefore(targetDateTime)) {
      return targetDateTime.difference(now);
    } else {
      final nextDay = today.add(const Duration(days: 1));
      final nextTargetDateTime = nextDay.add(Duration(hours: legalStart.hour, minutes: legalStart.minute));
      return nextTargetDateTime.difference(now);
    }
  }

  @override
  void dispose() {
    _refreshTimer.cancel();
    super.dispose();
  }
}