"use client";

import type { PriceOffer, PriceSearchResponse } from "@/src/types/priceSearch";

const CONFIDENCE_LABELS: Record<PriceOffer["confidence"], string> = {
  high: "Alta",
  medium: "Media",
  low: "Bassa",
};

const CONFIDENCE_STYLES: Record<PriceOffer["confidence"], string> = {
  high: "bg-green-500/15 text-green-400 border-green-500/30",
  medium: "bg-yellow-500/15 text-yellow-400 border-yellow-500/30",
  low: "bg-zinc-500/15 text-zinc-400 border-zinc-500/30",
};

function formatPrice(price: number | null, currency: string) {
  if (price === null) return "N/D";
  return new Intl.NumberFormat("it-IT", {
    style: "currency",
    currency,
  }).format(price);
}

interface PriceSearchPanelProps {
  isLoading: boolean;
  error: string | null;
  result: PriceSearchResponse | null;
  onApplyPrice: (price: number) => void;
  onCancel: () => void;
}

export default function PriceSearchPanel({
  isLoading,
  error,
  result,
  onApplyPrice,
  onCancel,
}: PriceSearchPanelProps) {
  if (!isLoading && !error && !result) return null;

  return (
    <div className="p-4 rounded-lg bg-blue-500/5 border border-blue-500/30 space-y-3">
      <div className="flex items-center justify-between gap-3">
        <h3 className="text-sm font-semibold text-blue-400 flex items-center gap-2">
          <svg className="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
            <path
              strokeLinecap="round"
              strokeLinejoin="round"
              strokeWidth={2}
              d="M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z"
            />
          </svg>
          Ricerca prezzi online
        </h3>
        {isLoading && (
          <button
            type="button"
            onClick={onCancel}
            className="text-xs text-zinc-400 hover:text-white transition-colors"
          >
            Annulla
          </button>
        )}
      </div>

      {isLoading && (
        <div className="flex items-center gap-3 text-sm text-zinc-400">
          <svg className="w-4 h-4 animate-spin text-blue-400" viewBox="0 0 24 24">
            <circle
              className="opacity-25"
              cx="12"
              cy="12"
              r="10"
              stroke="currentColor"
              strokeWidth="4"
              fill="none"
            />
            <path
              className="opacity-75"
              fill="currentColor"
              d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"
            />
          </svg>
          Ricerca in corso… può richiedere fino a 30 secondi
        </div>
      )}

      {error && (
        <div className="p-3 rounded-lg bg-red-500/10 border border-red-500/50 text-red-400 text-sm">
          {error}
        </div>
      )}

      {result && (
        <>
          <p className="text-xs text-zinc-500">
            Query: <span className="text-zinc-400">{result.query}</span>
          </p>

          {result.offers.length === 0 ? (
            <p className="text-sm text-zinc-400">Nessuna offerta trovata.</p>
          ) : (
            <ul className="space-y-2 max-h-48 overflow-y-auto">
              {result.offers.map((offer, index) => (
                <li
                  key={`${offer.vendor}-${offer.url}-${index}`}
                  className="p-3 rounded-lg bg-zinc-800/80 border border-zinc-700"
                >
                  <div className="flex items-start justify-between gap-3">
                    <div className="min-w-0 flex-1">
                      <div className="flex items-center gap-2 flex-wrap">
                        <span className="text-sm font-medium text-white truncate">
                          {offer.vendor}
                        </span>
                        <span
                          className={`text-[10px] px-1.5 py-0.5 rounded border ${CONFIDENCE_STYLES[offer.confidence]}`}
                        >
                          {CONFIDENCE_LABELS[offer.confidence]}
                        </span>
                      </div>
                      <p className="text-xs text-zinc-400 mt-0.5 line-clamp-2">{offer.title}</p>
                      {offer.shippingNote && (
                        <p className="text-[11px] text-zinc-500 mt-1">{offer.shippingNote}</p>
                      )}
                    </div>
                    <div className="flex flex-col items-end gap-2 flex-shrink-0">
                      <span className="text-sm font-semibold text-green-400">
                        {formatPrice(offer.price, offer.currency)}
                      </span>
                      <div className="flex items-center gap-2">
                        <a
                          href={offer.url}
                          target="_blank"
                          rel="noopener noreferrer"
                          className="text-[11px] text-blue-400 hover:text-blue-300 transition-colors"
                        >
                          Apri
                        </a>
                        {offer.price !== null && (
                          <button
                            type="button"
                            onClick={() => onApplyPrice(offer.price as number)}
                            className="text-[11px] px-2 py-1 rounded bg-blue-600 text-white hover:bg-blue-500 transition-colors"
                          >
                            Applica
                          </button>
                        )}
                      </div>
                    </div>
                  </div>
                </li>
              ))}
            </ul>
          )}

          <p className="text-[11px] text-zinc-500 leading-relaxed">{result.disclaimer}</p>
        </>
      )}
    </div>
  );
}