"use client";

import { useState } from "react";
import { Calendar } from "@/components/ui/calendar";
import { format } from "date-fns";
import { ru } from "date-fns/locale";
import { ChevronLeft, ChevronRight } from "lucide-react";
import Icon from "@/components/ui/icon";

interface YachtAvailabilityProps {
    price: string;
}

export function YachtAvailability({ price }: YachtAvailabilityProps) {
    const [currentMonth, setCurrentMonth] = useState(new Date(2025, 3, 1)); // Апрель 2025

    // Генерируем доступные даты (27, 28, 29 апреля доступны)
    const availableDates = [
        new Date(2025, 3, 27),
        new Date(2025, 3, 28),
        new Date(2025, 3, 29),
    ];

    const unavailableDates = Array.from({ length: 26 }, (_, i) => {
        return new Date(2025, 3, i + 1);
    });

    const isDateAvailable = (date: Date) => {
        return availableDates.some(
            (d) =>
                d.getDate() === date.getDate() &&
                d.getMonth() === date.getMonth() &&
                d.getFullYear() === date.getFullYear()
        );
    };

    const isDateUnavailable = (date: Date) => {
        return unavailableDates.some(
            (d) =>
                d.getDate() === date.getDate() &&
                d.getMonth() === date.getMonth() &&
                d.getFullYear() === date.getFullYear()
        );
    };

    const handlePreviousMonth = () => {
        setCurrentMonth(
            new Date(currentMonth.getFullYear(), currentMonth.getMonth() - 1, 1)
        );
    };

    const handleNextMonth = () => {
        setCurrentMonth(
            new Date(currentMonth.getFullYear(), currentMonth.getMonth() + 1, 1)
        );
    };

    return (
        <div className="space-y-4">
            <div className="flex items-center justify-between">
                <h2 className="text-xl font-bold text-[#333333]">
                    Доступность яхты
                </h2>
                <div className="flex items-center gap-2 text-sm text-[#999999]">
                    <Icon name="calendar" size={16} />
                    <span>По местному времени яхты</span>
                </div>
            </div>

            <div className="bg-white border border-gray-200 rounded-lg p-4">
                <div className="flex items-center justify-between mb-4">
                    <button
                        onClick={handlePreviousMonth}
                        className="p-2 hover:bg-gray-100 rounded-md transition-colors"
                    >
                        <ChevronLeft className="w-5 h-5 text-gray-600" />
                    </button>
                    <h3 className="text-lg font-semibold text-[#333333] capitalize">
                        {format(currentMonth, "LLLL yyyy", { locale: ru })}
                    </h3>
                    <button
                        onClick={handleNextMonth}
                        className="p-2 hover:bg-gray-100 rounded-md transition-colors"
                    >
                        <ChevronRight className="w-5 h-5 text-gray-600" />
                    </button>
                </div>

                <Calendar
                    mode="single"
                    month={currentMonth}
                    onMonthChange={setCurrentMonth}
                    className="w-full"
                    locale={ru}
                    classNames={{
                        root: "w-full",
                        month: "flex w-full flex-col gap-4",
                        month_caption:
                            "flex h-8 w-full items-center justify-center px-8 text-gray-700 font-semibold",
                        table: "w-full border-collapse",
                        weekdays: "flex",
                        weekday:
                            "flex-1 text-gray-500 text-xs font-normal p-2 text-center",
                        week: "mt-2 flex w-full",
                        day: "relative",
                    }}
                    components={{
                        DayButton: ({ day, ...props }) => {
                            const isAvailable = isDateAvailable(day.date);
                            const isUnavailable = isDateUnavailable(day.date);
                            const isDay30 = day.date.getDate() === 30;

                            return (
                                <button
                                    {...props}
                                    className={`relative w-full h-16 flex flex-col items-center justify-center rounded-md transition-colors ${
                                        isAvailable
                                            ? "bg-[#008299] text-white hover:bg-[#008299]"
                                            : isUnavailable || isDay30
                                            ? "text-gray-400 cursor-not-allowed bg-gray-100"
                                            : "hover:bg-gray-100"
                                    }`}
                                    disabled={isUnavailable || isDay30}
                                >
                                    <span className="text-sm font-medium">
                                        {day.date.getDate()}
                                    </span>
                                    {isAvailable && (
                                        <>
                                            <span className="text-[10px] mt-1 text-center leading-tight">
                                                Доступно: 08:00-20:00
                                            </span>
                                            <span className="text-[10px] mt-0.5 text-center leading-tight">
                                                {price} р/час
                                            </span>
                                        </>
                                    )}
                                    {(isUnavailable || isDay30) && (
                                        <span className="text-lg mt-1">✕</span>
                                    )}
                                </button>
                            );
                        },
                    }}
                />
            </div>
        </div>
    );
}