import Link from "next/link";
import { Plus, Undo2, Wallet } from "lucide-react";
import { prisma } from "@/lib/prisma";
import { requireUser } from "@/lib/rbac";
import { formatDateID, formatIDR } from "@/lib/utils";
import { PageHeader } from "@/components/ui/page-header";
import { Button } from "@/components/ui/button";
import { Card } from "@/components/ui/card";
import { Avatar } from "@/components/ui/avatar";
import { EmptyState } from "@/components/ui/empty-state";
import { MethodChip, PaymentStatusBadge } from "@/components/students/badges";
import { refundPaymentAction } from "./actions";

export const metadata = { title: "Pembayaran — Kodeva" };

type SP = Promise<{ studentId?: string; method?: string; status?: string }>;

export default async function PaymentsPage({ searchParams }: { searchParams: SP }) {
  const user = await requireUser();
  const sp = await searchParams;

  const payments = await prisma.payment.findMany({
    where: {
      ...(sp.studentId ? { studentId: sp.studentId } : {}),
      ...(sp.method ? { method: sp.method } : {}),
      ...(sp.status ? { status: sp.status } : {}),
    },
    include: { student: true, class: true },
    orderBy: { paidAt: "desc" },
  });

  const totalPaid = payments.filter((p) => p.status === "PAID").reduce((a, p) => a + p.amount, 0);

  return (
    <div>
      <PageHeader
        title="Pembayaran"
        description={`Total diterima: ${formatIDR(totalPaid)}`}
        actions={
          <Link href="/payments/new">
            <Button>
              <Plus className="size-4" /> Catat Pembayaran
            </Button>
          </Link>
        }
      />

      {payments.length === 0 ? (
        <EmptyState icon={<Wallet className="size-6" />} title="Belum ada pembayaran" description="Catat pembayaran prorata pertama siswa." />
      ) : (
        <Card className="overflow-hidden">
          <div className="hidden md:block">
            <table className="w-full text-left text-sm">
              <thead>
                <tr className="border-b border-ink-100 text-[12px] uppercase tracking-wide text-ink-500">
                  <th className="px-5 py-3 font-semibold">Invoice</th>
                  <th className="px-3 py-3 font-semibold">Siswa</th>
                  <th className="px-3 py-3 font-semibold">Kelas</th>
                  <th className="px-3 py-3 font-semibold">Detail</th>
                  <th className="px-3 py-3 font-semibold">Nominal</th>
                  <th className="px-3 py-3 font-semibold">Metode</th>
                  <th className="px-3 py-3 font-semibold">Status</th>
                  <th className="px-5 py-3" />
                </tr>
              </thead>
              <tbody className="divide-y divide-ink-100">
                {payments.map((p) => (
                  <tr key={p.id} className="transition-colors hover:bg-brand-50/40">
                    <td className="px-5 py-3">
                      <span className="font-mono text-[12px] text-ink-500">{p.invoiceNumber}</span>
                      <p className="text-[11.5px] text-ink-500">{formatDateID(p.paidAt)}</p>
                    </td>
                    <td className="px-3 py-3">
                      <Link href={`/students/${p.studentId}`} className="flex items-center gap-2.5">
                        <Avatar src={p.student.photoUrl} name={p.student.fullName} size={30} />
                        <span className="font-medium text-ink-900">{p.student.fullName}</span>
                      </Link>
                    </td>
                    <td className="px-3 py-3 text-ink-700">{p.class.name}</td>
                    <td className="px-3 py-3 text-[12.5px] text-ink-500">
                      {p.meetingsPaid} × {formatIDR(p.pricePerMeeting)}
                    </td>
                    <td className="px-3 py-3 font-num font-semibold text-ink-900">{formatIDR(p.amount)}</td>
                    <td className="px-3 py-3">
                      <MethodChip method={p.method} />
                    </td>
                    <td className="px-3 py-3">
                      <PaymentStatusBadge status={p.status} />
                    </td>
                    <td className="px-5 py-3 text-right">
                      {user.role === "ADMIN" && p.status !== "REFUNDED" ? (
                        <form action={refundPaymentAction} className="inline">
                          <input type="hidden" name="id" value={p.id} />
                          <button type="submit" className="inline-flex items-center gap-1 text-[12px] font-medium text-danger-500 hover:underline">
                            <Undo2 className="size-3.5" /> Refund
                          </button>
                        </form>
                      ) : (
                        <span className="text-[12px] text-ink-500">-</span>
                      )}
                    </td>
                  </tr>
                ))}
              </tbody>
            </table>
          </div>

          {/* mobile cards */}
          <div className="divide-y divide-ink-100 md:hidden">
            {payments.map((p) => (
              <div key={p.id} className="p-4">
                <div className="flex items-center justify-between">
                  <span className="font-mono text-[12px] text-ink-500">{p.invoiceNumber}</span>
                  <PaymentStatusBadge status={p.status} />
                </div>
                <p className="mt-1.5 font-semibold text-ink-900">{p.student.fullName}</p>
                <p className="text-[12.5px] text-ink-500">{p.class.name}</p>
                <div className="mt-2 flex items-center justify-between">
                  <p className="font-num text-[15px] font-bold text-ink-900">{formatIDR(p.amount)}</p>
                  <MethodChip method={p.method} />
                </div>
              </div>
            ))}
          </div>
        </Card>
      )}
    </div>
  );
}