import 'package:flutter/material.dart';
import 'package:intl/intl.dart';

import 'package:timetrack/features/reports/domain/report_data.dart';

class PeriodNavigator extends StatelessWidget {
  const PeriodNavigator({
    super.key,
    required this.period,
    required this.periodStart,
    required this.periodEnd,
    required this.onPrevious,
    required this.onNext,
  });

  final ReportPeriod period;
  final DateTime periodStart;
  final DateTime periodEnd;
  final VoidCallback onPrevious;
  final VoidCallback onNext;

  @override
  Widget build(BuildContext context) {
    return Row(
      mainAxisAlignment: MainAxisAlignment.spaceBetween,
      children: [
        IconButton(
          icon: const Icon(Icons.chevron_left),
          onPressed: onPrevious,
        ),
        Text(
          _label(),
          style: Theme.of(context).textTheme.titleSmall,
        ),
        IconButton(
          icon: const Icon(Icons.chevron_right),
          onPressed: onNext,
        ),
      ],
    );
  }

  String _label() {
    switch (period) {
      case ReportPeriod.day:
        return DateFormat('EEE, d MMM y').format(periodStart);
      case ReportPeriod.week:
        return '${DateFormat('d MMM').format(periodStart)} – '
            '${DateFormat('d MMM y').format(periodEnd.subtract(const Duration(days: 1)))}';
      case ReportPeriod.month:
        return DateFormat('MMMM y').format(periodStart);
    }
  }
}