Calendar

"use client";
import { DatePicker, DateValue, parseDate } from "@ark-ui/react/date-picker";
import { ChevronLeftIcon, ChevronRightIcon } from "lucide-react";

function getWeekOfYear(dateValue: DateValue) {
  const date = dateValue.toDate(
    Intl.DateTimeFormat().resolvedOptions().timeZone
  );
  const jan1 = new Date(date.getFullYear(), 0, 1);
  const dayOfYear =
    Math.floor(
      (Number(date) -
        Number(jan1) +
        (jan1.getTimezoneOffset() - date.getTimezoneOffset()) * 60000) /
        86400000
    ) + 1;

  const jan1Day = jan1.getDay(); // Sunday = 0, Monday = 1, ..., Saturday = 6
  return Math.ceil((dayOfYear + jan1Day) / 7);
}

export default function BasicDatePicker() {
  return (
    <DatePicker.Root
      inline
      defaultValue={[parseDate(new Date())]}
      fixedWeeks
      timeZone={Intl.DateTimeFormat().resolvedOptions().timeZone}
    >
      <DatePicker.Content className="bg-white dark:bg-gray-800 border border-gray-200 dark:border-gray-700 rounded-lg shadow-xs p-3 inline-block">
        <DatePicker.View view="day">
          <DatePicker.Context>
            {(api) => (
              <>
                <DatePicker.ViewControl className="flex items-center justify-between mb-3">
                  <DatePicker.PrevTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronLeftIcon className="w-4 h-4" />
                  </DatePicker.PrevTrigger>
                  <DatePicker.ViewTrigger className="text-sm font-medium text-gray-900 dark:text-gray-100 hover:bg-gray-100 dark:hover:bg-gray-700 px-2 py-1 rounded-md transition-colors">
                    <DatePicker.RangeText />
                  </DatePicker.ViewTrigger>
                  <DatePicker.NextTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronRightIcon className="w-4 h-4" />
                  </DatePicker.NextTrigger>
                </DatePicker.ViewControl>
                <DatePicker.Table className="w-full border-separate border-spacing-y-0.5">
                  <DatePicker.TableHead>
                    <DatePicker.TableRow>
                      <th />
                      {api.weekDays.map((weekDay, id) => (
                        <DatePicker.TableHeader
                          key={id}
                          className="text-sm font-medium text-gray-500 dark:text-gray-400 w-9 h-7 text-center"
                        >
                          {weekDay.narrow}
                        </DatePicker.TableHeader>
                      ))}
                    </DatePicker.TableRow>
                  </DatePicker.TableHead>
                  <DatePicker.TableBody>
                    {api.weeks.map((week, id) => (
                      <DatePicker.TableRow key={id}>
                        <td className="relative w-9 h-9 text-sm transition-colors rounded-lg text-gray-400 dark:text-gray-500 pointer-events-none flex items-center justify-center font-medium">
                          {getWeekOfYear(week[0])}
                        </td>
                        {week.map((day, id) => (
                          <DatePicker.TableCell
                            key={id}
                            value={day}
                            className="p-0"
                          >
                            <DatePicker.TableCellTrigger className="relative w-9 h-9 text-sm text-gray-900 dark:text-gray-100 hover:bg-gray-100 dark:hover:bg-gray-700 transition-colors data-selected:bg-gray-900 data-selected:text-white rounded-lg dark:data-selected:bg-gray-200 dark:data-selected:text-gray-900 data-outside-range:text-gray-400 dark:data-outside-range:text-gray-500 flex items-center justify-center font-medium data-today:after:content-[''] data-today:after:absolute data-today:after:bottom-0.5 data-today:after:w-1 data-today:after:h-1 data-today:after:bg-gray-900 data-today:after:rounded-full dark:data-today:after:bg-gray-300 data-selected:data-today:after:bg-white dark:data-selected:data-today:after:bg-gray-900">
                              {day.day}
                            </DatePicker.TableCellTrigger>
                          </DatePicker.TableCell>
                        ))}
                      </DatePicker.TableRow>
                    ))}
                  </DatePicker.TableBody>
                </DatePicker.Table>
              </>
            )}
          </DatePicker.Context>
        </DatePicker.View>
        <DatePicker.View view="month">
          <DatePicker.Context>
            {(api) => (
              <>
                <DatePicker.ViewControl className="flex items-center justify-between mb-4">
                  <DatePicker.PrevTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronLeftIcon className="w-4 h-4" />
                  </DatePicker.PrevTrigger>
                  <DatePicker.ViewTrigger className="text-base font-semibold text-gray-900 dark:text-gray-100 hover:bg-gray-100 dark:hover:bg-gray-700 px-2 py-1 rounded-md transition-colors">
                    <DatePicker.RangeText />
                  </DatePicker.ViewTrigger>
                  <DatePicker.NextTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronRightIcon className="w-4 h-4" />
                  </DatePicker.NextTrigger>
                </DatePicker.ViewControl>
                <DatePicker.Table className="w-full border-separate border-spacing-y-0.5">
                  <DatePicker.TableBody>
                    {api
                      .getMonthsGrid({ columns: 4, format: "short" })
                      .map((months, id) => (
                        <DatePicker.TableRow key={id}>
                          {months.map((month, id) => (
                            <DatePicker.TableCell key={id} value={month.value}>
                              <DatePicker.TableCellTrigger className="w-16 h-10 text-sm text-gray-900 dark:text-gray-100 hover:bg-gray-100 hover:rounded-lg dark:hover:bg-gray-700 rounded-lg transition-colors data-selected:bg-gray-900 data-selected:text-white data-selected:rounded-lg dark:data-selected:bg-gray-200 dark:data-selected:text-gray-900 flex items-center justify-center font-medium">
                                {month.label}
                              </DatePicker.TableCellTrigger>
                            </DatePicker.TableCell>
                          ))}
                        </DatePicker.TableRow>
                      ))}
                  </DatePicker.TableBody>
                </DatePicker.Table>
              </>
            )}
          </DatePicker.Context>
        </DatePicker.View>
        <DatePicker.View view="year">
          <DatePicker.Context>
            {(api) => (
              <>
                <DatePicker.ViewControl className="flex items-center justify-between mb-4">
                  <DatePicker.PrevTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronLeftIcon className="w-4 h-4" />
                  </DatePicker.PrevTrigger>
                  <DatePicker.ViewTrigger className="text-base font-semibold text-gray-900 dark:text-gray-100 hover:bg-gray-100 dark:hover:bg-gray-700 px-2 py-1 rounded-md transition-colors">
                    <DatePicker.RangeText />
                  </DatePicker.ViewTrigger>
                  <DatePicker.NextTrigger className="p-1 hover:bg-gray-100 dark:hover:bg-gray-700 rounded-md transition-colors text-gray-700 dark:text-gray-300">
                    <ChevronRightIcon className="w-4 h-4" />
                  </DatePicker.NextTrigger>
                </DatePicker.ViewControl>
                <DatePicker.Table className="w-full border-separate border-spacing-y-0.5">
                  <DatePicker.TableBody>
                    {api.getYearsGrid({ columns: 4 }).map((years, id) => (
                      <DatePicker.TableRow key={id}>
                        {years.map((year, id) => (
                          <DatePicker.TableCell key={id} value={year.value}>
                            <DatePicker.TableCellTrigger className="w-16 h-10 text-sm text-gray-900 dark:text-gray-100 hover:bg-gray-100 hover:rounded-lg dark:hover:bg-gray-700 rounded-lg transition-colors data-selected:bg-gray-900 data-selected:text-white data-selected:rounded-lg dark:data-selected:bg-gray-200 dark:data-selected:text-gray-900 flex items-center justify-center font-medium">
                              {year.label}
                            </DatePicker.TableCellTrigger>
                          </DatePicker.TableCell>
                        ))}
                      </DatePicker.TableRow>
                    ))}
                  </DatePicker.TableBody>
                </DatePicker.Table>
              </>
            )}
          </DatePicker.Context>
        </DatePicker.View>
      </DatePicker.Content>
    </DatePicker.Root>
  );
}