import { format, isSameDay } from 'date-fns';
import { useState } from 'react';
import { DatePicker } from '@/components/date-picker';
import InputError from '@/components/input-error';
import { Input } from '@/components/ui/input';
import { Label } from '@/components/ui/label';

type DateTimeFieldProps = {
    label: string;
    name: string;
    required?: boolean;
    defaultValue?: string | null;
    error?: string;
    placeholder?: string;
    maxNow?: boolean;
};

function parseDefault(value?: string | null): Date | undefined {
    if (!value) {
        return undefined;
    }

    const date = new Date(value);

    return Number.isNaN(date.getTime()) ? undefined : date;
}

export function DateTimeField({
    label,
    name,
    required,
    defaultValue,
    error,
    placeholder = 'Pilih tanggal',
    maxNow,
}: DateTimeFieldProps) {
    const initial = parseDefault(defaultValue);
    const [date, setDate] = useState<Date | undefined>(initial);
    const [time, setTime] = useState(initial ? format(initial, 'HH:mm') : '');

    const combined = date
        ? `${format(date, 'yyyy-MM-dd')} ${time || '00:00'}:00`
        : '';

    const now = new Date();
    const maxTime =
        maxNow && date && isSameDay(date, now)
            ? format(now, 'HH:mm')
            : undefined;

    return (
        <div className="grid gap-2">
            <Label>
                {label}{' '}
                {required && <span className="text-destructive">*</span>}
            </Label>
            <input type="hidden" name={name} value={combined} />
            <div className="flex gap-2">
                <DatePicker
                    value={date}
                    onChange={setDate}
                    placeholder={placeholder}
                    className="flex-1"
                    maxDate={maxNow ? now : undefined}
                />
                <Input
                    type="time"
                    value={time}
                    onChange={(e) => setTime(e.target.value)}
                    max={maxTime}
                    className="w-28"
                />
            </div>
            <InputError message={error} />
        </div>
    );
}