import 'package:eatvio_app/core/utils/string_extentions.dart';
import 'package:eatvio_app/core/theme/theme_helper.dart';
import 'package:flutter/material.dart';
import 'package:intl/intl.dart';
import 'package:table_calendar/table_calendar.dart';

class CalendarWidget extends StatefulWidget {
  const CalendarWidget({super.key});

  @override
  State<CalendarWidget> createState() => _CalendarWidgetState();
}

class _CalendarWidgetState extends State<CalendarWidget> {
  CalendarFormat _calendarFormat = CalendarFormat.week;
  DateTime _focusedDay = DateTime.now();
  DateTime? _selectedDay = DateTime.now();
  @override
  Widget build(BuildContext context) {
    return Column(
      mainAxisSize: MainAxisSize.min,
      children: [
        Padding(
          padding: const EdgeInsets.only(top: 5),
          child: TableCalendar(
            firstDay: DateTime.now(),
            lastDay: DateTime.utc(2030, 3, 14),
            locale: 'ru_RU',
            startingDayOfWeek: StartingDayOfWeek.monday,
            focusedDay: _focusedDay,
            calendarFormat: _calendarFormat,
            calendarBuilders: CalendarBuilders(
              headerTitleBuilder: (context, day) {
                final dateFormatter = DateFormat('MMMM', 'ru_RU');
                return Center(
                  child: Text(
                    '${dateFormatter.format(day).capitalize()}',
                    style: TextStyle(color: appTheme.black, fontSize: 16, fontWeight: FontWeight.w400),
                  ),
                );
              },
            ),
            headerStyle: HeaderStyle(
              titleCentered: true,
              formatButtonVisible: false,
              leftChevronVisible: false,
              rightChevronVisible: false,
            ),
            rowHeight: 64,
            selectedDayPredicate: (day) {
              return isSameDay(_selectedDay, day);
            },
            onDaySelected: (selectedDay, focusedDay) {
              if (!isSameDay(_selectedDay, selectedDay)) {
                setState(() {
                  _selectedDay = selectedDay;
                  _focusedDay = focusedDay;
                });
              }
            },
            onFormatChanged: (format) {
              if (_calendarFormat != format) {
                setState(() {
                  _calendarFormat = format;
                });
              }
            },
            onPageChanged: (focusedDay) {
              _focusedDay = focusedDay;
            },
            calendarStyle: CalendarStyle(
              weekendTextStyle: TextStyle(
                color: appTheme.gray,
              ),
              defaultTextStyle: TextStyle(
                color: appTheme.gray,
              ),
              weekendDecoration: BoxDecoration(
                color: appTheme.dividerColor,
                shape: BoxShape.circle,
              ),
              defaultDecoration: BoxDecoration(
                color: appTheme.dividerColor,
                shape: BoxShape.circle,
              ),
              selectedTextStyle: TextStyle(
                color: appTheme.whiteA700,
              ),
              selectedDecoration: BoxDecoration(
                color: appTheme.blueA400,
                shape: BoxShape.circle,
              ),
              todayTextStyle: TextStyle(
                color: appTheme.gray,
              ),
              todayDecoration: BoxDecoration(
                border: Border.all(
                  color: appTheme.blueA400,
                  width: 2,
                ),
                color: appTheme.dividerColor,
                shape: BoxShape.circle,
              ),
            ),
          ),
        ),
      ],
    );
  }
}