"use client";
import { useEffect, useState } from "react";
import { fetchClient } from "@/lib/api-client";

interface OrderItem {
  name: string;
  quantity: number;
}

interface Order {
  orderId: number | string;
  userId: number;
  total: number;
  createdAt: string;
  status?: string;
  items?: OrderItem[];
}

export default function RecentOrdersCard() {
  const [orders, setOrders] = useState<Order[]>([]);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<string | null>(null);

  function statusBadgeClass(status: string) {
    switch (status) {
      case 'unpaid':
      case 'confirming':
        return 'bg-amber-500/15 text-amber-400';
      case 'paid':
      case 'acknowledged':
        return 'bg-sky-500/15 text-sky-400';
      case 'shipped':
        return 'bg-purple-500/15 text-purple-400';
      case 'completed':
        return 'bg-emerald-500/15 text-emerald-400';
      case 'cancelled':
        return 'bg-rose-500/15 text-rose-400';
      default:
        return 'bg-muted text-foreground/70';
    }
  }

  useEffect(() => {
    let mounted = true;
    (async () => {
      try {
        const data = await fetchClient<Order[]>("/admin/recent-orders");
        if (mounted) setOrders(data);
      } catch (e: any) {
        if (mounted) setError(e?.message || "Failed to load orders");
      } finally {
        if (mounted) setLoading(false);
      }
    })();
    return () => { mounted = false; };
  }, []);

  return (
    <div className="rounded-lg border border-border/60 bg-background p-4 h-full min-h-[200px]">
      <h2 className="font-medium">Recent Orders</h2>
      <p className="text-sm text-muted-foreground mt-1">Last 10 orders across stores</p>
      {loading ? (
        <p className="text-sm text-muted-foreground mt-3">Loading...</p>
      ) : error ? (
        <p className="text-sm text-muted-foreground mt-3">{error}</p>
      ) : orders.length === 0 ? (
        <p className="text-sm text-muted-foreground mt-3">No recent orders</p>
      ) : (
        <div className="mt-3 space-y-3">
          {orders.slice(0, 10).map((o) => (
            <div key={String(o.orderId)} className="rounded border border-border/50 p-3">
              <div className="flex items-center justify-between text-sm">
                <div className="font-medium">Order #{o.orderId}</div>
                <div className="flex items-center gap-2">
                  {o.status && (
                    <span className={`text-xs px-2 py-0.5 rounded ${statusBadgeClass(o.status)}`}>
                      {o.status}
                    </span>
                  )}
                  <div className="text-muted-foreground">{new Date(o.createdAt).toLocaleString()}</div>
                </div>
              </div>
              <div className="mt-1 text-xs text-muted-foreground">
                User: {o.userId} · Total: £{Number(o.total).toFixed(2)}
              </div>
              {o.items && o.items.length > 0 && (
                <ul className="mt-2 text-xs list-disc pl-4 text-muted-foreground">
                  {o.items.map((it, idx) => (
                    <li key={idx}>{it.name} × {it.quantity}</li>
                  ))}
                </ul>
              )}
            </div>
          ))}
        </div>
      )}
    </div>
  );
}