"use client";

import { useTranslations } from "next-intl";
import { useRouter } from "next/navigation";
import { useState } from "react";
import { Calendar, ArrowRight } from "lucide-react";
import { tomorrowDateString, addMonths } from "@/src/lib/date";

interface AvailabilitySearchBarProps {
  locale: string;
  defaultArrival?: string;
  defaultMonths?: number;
}

export function AvailabilitySearchBar({
  locale,
  defaultArrival,
  defaultMonths,
}: AvailabilitySearchBarProps) {
  const t = useTranslations("houses.search");
  const router = useRouter();
  const [arrival, setArrival] = useState(defaultArrival || tomorrowDateString());
  const [months, setMonths] = useState(defaultMonths || 3);

  const handleSubmit = (e: React.FormEvent) => {
    e.preventDefault();
    const departure = addMonths(arrival, months);
    const searchParams = new URLSearchParams({
      arrival,
      departure,
      months: String(months),
    });
    router.push(`/${locale}/houses?${searchParams.toString()}`);
  };

  return (
    <form
      onSubmit={handleSubmit}
      className="bg-white rounded-2xl shadow-lg border border-brand-grey-soft/80 p-6 md:p-8 mb-12"
    >
      <div className="grid grid-cols-1 md:grid-cols-3 gap-6 items-end">
        <div className="space-y-2">
          <label
            htmlFor="search-arrival"
            className="flex items-center gap-2 text-sm font-bold text-brand-grey-dark"
          >
            <Calendar className="w-4 h-4 text-brand-green" />
            {t("arrival")}
          </label>
          <input
            id="search-arrival"
            type="date"
            required
            lang={locale === "de" ? "de-DE" : "en-US"}
            value={arrival}
            min={tomorrowDateString()}
            onChange={(e) => setArrival(e.target.value)}
            className="w-full px-4 py-3 rounded-xl border-2 border-brand-grey-soft/60 bg-brand-grey-soft/20 text-brand-grey-dark focus:outline-none focus:ring-2 focus:ring-brand-green focus:border-transparent transition-all"
          />
        </div>

        <div className="space-y-2">
          <label htmlFor="search-months" className="block text-sm font-bold text-brand-grey-dark">
            {t("stayMonths")}
          </label>
          <input
            id="search-months"
            type="number"
            min={1}
            max={24}
            required
            value={months}
            onChange={(e) => setMonths(Number(e.target.value))}
            className="w-full px-4 py-3 text-center rounded-xl border-2 border-brand-grey-soft/60 bg-brand-grey-soft/20 text-brand-grey-dark focus:outline-none focus:ring-2 focus:ring-brand-green focus:border-transparent transition-all"
          />
        </div>

        <button
          type="submit"
          className="inline-flex items-center justify-center gap-2 bg-brand-green text-white font-bold px-6 py-3 rounded-xl hover:bg-brand-green-dark hover:shadow-lg transition-all"
        >
          {t("checkAvailability")}
          <ArrowRight className="w-5 h-5" />
        </button>
      </div>
    </form>
  );
}