import React, { useState, useEffect } from 'react';
import { Link } from 'react-router-dom';
import { Package, Eye } from 'lucide-react';
import { api } from '@/lib/api/client';
import { toast } from 'sonner';
import SEOHead from '@/components/SEOHead';

interface Order {
  id: number;
  order_number: string;
  date: string;
  status: string;
  total: string;
  items_count: number;
}

export default function Orders() {
  const [loading, setLoading] = useState(true);
  const [orders, setOrders] = useState<Order[]>([]);
  const [page, setPage] = useState(1);
  const [totalPages, setTotalPages] = useState(1);

  useEffect(() => {
    loadOrders();
  }, [page]);

  const loadOrders = async () => {
    try {
      const data = await api.get<any>('/account/orders', { page, per_page: 10 });
      setOrders(data.orders || []);
      setTotalPages(data.total_pages || 1);
    } catch (error) {
      console.error('Load orders error:', error);
      toast.error('Failed to load orders');
    } finally {
      setLoading(false);
    }
  };

  const getStatusColor = (status: string) => {
    const colors: Record<string, string> = {
      'completed': 'bg-green-100 text-green-800',
      'processing': 'bg-blue-100 text-blue-800',
      'pending': 'bg-yellow-100 text-yellow-800',
      'on-hold': 'bg-orange-100 text-orange-800',
      'cancelled': 'bg-red-100 text-red-800',
      'refunded': 'bg-gray-100 text-gray-800',
      'failed': 'bg-red-100 text-red-800',
    };
    return colors[status] || 'bg-gray-100 text-gray-800';
  };

  const formatDate = (dateString: string) => {
    return new Date(dateString).toLocaleDateString('en-US', {
      year: 'numeric',
      month: 'short',
      day: 'numeric',
    });
  };

  if (loading) {
    return (
      <div className="flex items-center justify-center py-12">
        <div className="text-gray-600">Loading orders...</div>
      </div>
    );
  }

  if (orders.length === 0) {
    return (
      <div>
        <h1 className="text-2xl font-bold mb-6">Orders</h1>

        <div className="text-center py-12">
          <Package className="w-16 h-16 text-gray-300 mx-auto mb-4" />
          <p className="text-gray-600 mb-4">No orders yet</p>
          <Link
            to="/shop"
            className="inline-block px-6 py-2 bg-primary text-white rounded-lg hover:bg-primary/90 transition-colors"
          >
            Browse Products
          </Link>
        </div>
      </div>
    );
  }

  return (
    <div>
      <SEOHead title="Orders" description="View your order history" />
      <h1 className="text-2xl font-bold mb-6">Orders</h1>

      <div className="space-y-4">
        {orders.map((order) => (
          <div key={order.id} className="border rounded-lg p-4 hover:border-primary transition-colors">
            <div className="flex items-center justify-between mb-3">
              <div>
                <h3 className="font-semibold text-lg">Order #{order.order_number}</h3>
                <p className="text-sm text-gray-600">{formatDate(order.date)}</p>
              </div>
              <span className={`px-3 py-1 rounded-full text-xs font-medium ${getStatusColor(order.status)}`}>
                {order.status.replace('-', ' ').toUpperCase()}
              </span>
            </div>

            <div className="flex items-center justify-between">
              <div className="text-sm text-gray-600">
                {order.items_count} {order.items_count === 1 ? 'item' : 'items'}
              </div>
              <div className="flex items-center gap-4">
                <span className="font-bold text-lg">{order.total}</span>
                <Link
                  to={`/my-account/orders/${order.id}`}
                  className="flex items-center gap-2 px-4 py-2 border border-primary text-primary rounded-lg hover:bg-primary hover:text-white transition-colors"
                >
                  <Eye className="w-4 h-4" />
                  View
                </Link>
              </div>
            </div>
          </div>
        ))}
      </div>

      {/* Pagination */}
      {totalPages > 1 && (
        <div className="flex items-center justify-center gap-2 mt-8">
          <button
            onClick={() => setPage(p => Math.max(1, p - 1))}
            disabled={page === 1}
            className="font-[inherit] px-4 py-2 border rounded-lg hover:bg-gray-50 disabled:opacity-50 disabled:cursor-not-allowed"
          >
            Previous
          </button>
          <span className="text-sm text-gray-600">
            Page {page} of {totalPages}
          </span>
          <button
            onClick={() => setPage(p => Math.min(totalPages, p + 1))}
            disabled={page === totalPages}
            className="font-[inherit] px-4 py-2 border rounded-lg hover:bg-gray-50 disabled:opacity-50 disabled:cursor-not-allowed"
          >
            Next
          </button>
        </div>
      )}
    </div>
  );
}
