"use client";

import { useState } from "react";
import { useRouter } from "next/navigation";
import Image from "next/image";
import { confirmParticipantPaymentAction } from "@/features/booking/actions";

export interface PaymentPendingParticipant {
  id: string;
  user: { name: string; image: string | null };
  /** PENDING atau CONFIRMED (join) — keduanya bisa sudah tandai bayar */
  joinStatus: "PENDING" | "CONFIRMED";
}

interface OrganizerPaymentQueueProps {
  tripId: string;
  items: PaymentPendingParticipant[];
}

export function OrganizerPaymentQueue({
  tripId,
  items,
}: OrganizerPaymentQueueProps) {
  const router = useRouter();
  const [loadingId, setLoadingId] = useState<string | null>(null);
  const [error, setError] = useState("");

  async function confirm(participantId: string) {
    setLoadingId(participantId);
    setError("");
    const result = await confirmParticipantPaymentAction(tripId, participantId);
    setLoadingId(null);
    if (result.error) {
      setError(result.error);
      return;
    }
    router.refresh();
  }

  return (
    <div className="rounded-xl border border-primary-200 bg-primary-50/60 p-4 sm:p-5">
      <h2 className="text-sm font-bold text-primary-950 sm:text-base">
        Konfirmasi pembayaran ({items.length})
      </h2>
      <p className="mt-1 text-xs text-primary-900/85 sm:text-sm">
        Peserta sudah menandai pembayaran. Cek rekening atau bukti transfer,
        lalu konfirmasi.
      </p>
      {error && (
        <p className="mt-3 rounded-lg bg-red-50 px-3 py-2 text-xs font-medium text-red-700 sm:text-sm">
          {error}
        </p>
      )}
      <ul className="mt-4 space-y-3">
        {items.map((p) => (
          <li
            key={p.id}
            className="flex flex-col gap-3 rounded-xl border border-primary-100 bg-white/95 p-3 sm:flex-row sm:items-center sm:justify-between"
          >
            <div className="flex min-w-0 items-center gap-3">
              {p.user.image ? (
                <Image
                  src={p.user.image}
                  alt=""
                  width={40}
                  height={40}
                  className="h-10 w-10 shrink-0 rounded-full object-cover"
                />
              ) : (
                <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-full bg-primary-600 text-sm font-bold text-white">
                  {p.user.name.charAt(0).toUpperCase()}
                </div>
              )}
              <div className="min-w-0">
                <p className="truncate text-sm font-semibold text-neutral-800">
                  {p.user.name}
                </p>
                <p className="text-xs text-primary-800/90">
                  Menunggu konfirmasi pembayaran
                  {p.joinStatus === "PENDING" && (
                    <span className="text-neutral-500">
                      {" "}
                      · belum disetujui ikut trip
                    </span>
                  )}
                </p>
              </div>
            </div>
            <button
              type="button"
              disabled={loadingId !== null}
              onClick={() => confirm(p.id)}
              className="shrink-0 rounded-lg bg-primary-600 px-4 py-2 text-xs font-semibold text-white shadow-sm hover:bg-primary-700 disabled:opacity-50 sm:text-sm"
            >
              {loadingId === p.id ? "Memproses…" : "Konfirmasi pembayaran"}
            </button>
          </li>
        ))}
      </ul>
    </div>
  );
}