"use client";

import { useQuery } from "@tanstack/react-query";
import { useTenantId } from "@/hooks/useTenantId";
import { paymentApi } from "@/modules/payment/services/payment-api";
import { usePaymentHealth, usePaymentMetrics } from "@/modules/payment/hooks/usePaymentCapabilities";
import { PaymentPageLoader, PaymentPageError } from "@/modules/payment/pages/shared";
import { PageHeader, Card, CardContent, Badge } from "@/components/ds";
import { PaymentStatCards } from "@/modules/payment/components/PaymentCharts";

export const PaymentMonitoring = function PaymentMonitoringPage() {
  const { tenantId } = useTenantId();
  const health = usePaymentHealth();
  const metrics = usePaymentMetrics();

  const opsQ = useQuery({
    queryKey: ["payment", tenantId, "monitoring"],
    queryFn: async () => {
      const [requests, transactions] = await Promise.all([
        paymentApi.requests.list(tenantId!),
        paymentApi.transactions.list(tenantId!),
      ]);
      const failed = requests.filter((r) => r.status === "failed").length;
      const pending = requests.filter((r) =>
        ["pending", "redirect_issued"].includes(String(r.status))
      ).length;
      return { failed, pending, requests: requests.length, transactions: transactions.length };
    },
    enabled: !!tenantId,
    refetchInterval: 30_000,
  });

  if (!tenantId || health.isLoading || metrics.isLoading || opsQ.isLoading) {
    return <PaymentPageLoader label="در حال بارگذاری مانیتورینگ…" />;
  }
  if (opsQ.error) return <PaymentPageError error={opsQ.error} onRetry={() => opsQ.refetch()} />;

  const ops = opsQ.data!;

  return (
    <div className="space-y-6">
      <PageHeader
        title="مانیتورینگ"
        description="سلامت سرویس و شاخص‌های عملیاتی real-time."
        actions={
          <Badge tone={health.data?.status === "ok" ? "success" : "warning"}>
            {health.data?.status ?? "—"}
          </Badge>
        }
      />
      <PaymentStatCards
        items={[
          { label: "وضعیت سرویس", value: health.data?.status ?? "—" },
          { label: "درخواست‌های باز", value: ops.pending },
          { label: "ناموفق", value: ops.failed },
          { label: "تراکنش", value: ops.transactions },
        ]}
      />
      <div className="grid gap-4 lg:grid-cols-2">
        <Card>
          <CardContent className="p-4 text-sm">
            <h3 className="mb-2 font-semibold">Health</h3>
            <pre className="text-xs">{JSON.stringify(health.data, null, 2)}</pre>
          </CardContent>
        </Card>
        <Card>
          <CardContent className="p-4 text-sm">
            <h3 className="mb-2 font-semibold">Metrics</h3>
            <pre className="text-xs">{JSON.stringify(metrics.data?.metrics ?? {}, null, 2)}</pre>
          </CardContent>
        </Card>
      </div>
    </div>
  );
};

export default PaymentMonitoring;