'use client';

import { useState } from 'react';
import { OrderItem } from '@/lib/types';
import { cn, formatDate, formatCurrency, parseCoordinates } from '@/lib/utils';
import {
  Check,
  AlertTriangle,
  Navigation,
  ChevronDown,
  ChevronUp,
  Package,
  Wrench,
  Hammer,
  ShoppingCart,
  AlertCircle,
} from 'lucide-react';

interface CollectionItemProps {
  item: OrderItem;
  onCollect: (item: OrderItem) => void;
  onProblem: (item: OrderItem) => void;
  onNavigate: (lat: number, lng: number, name: string) => void;
}

function getItemType(item: OrderItem): {
  type: string;
  icon: React.ReactNode;
  color: string;
  label: string;
} {
  if (item.item_status === 'problem' || item.problem_flag) {
    return {
      type: 'problem',
      icon: <AlertTriangle size={16} />,
      color: 'text-red-500',
      label: 'Problem',
    };
  }

  const orderNumber = item.expand?.order?.order_number || '';

  if (orderNumber.toLowerCase().includes('breakdown')) {
    return {
      type: 'breakdown',
      icon: <Hammer size={16} />,
      color: 'text-orange-600',
      label: 'Breakdown',
    };
  }

  if (orderNumber.toLowerCase().includes('repair')) {
    return {
      type: 'repair',
      icon: <Wrench size={16} />,
      color: 'text-amber-500',
      label: 'Repair',
    };
  }

  if (item.is_stock_item) {
    return {
      type: 'stock',
      icon: <Package size={16} />,
      color: 'text-purple-500',
      label: 'Stock',
    };
  }

  return {
    type: 'normal',
    icon: <ShoppingCart size={16} />,
    color: 'text-orange-500',
    label: 'Order',
  };
}

export default function CollectionItemCard({
  item,
  onCollect,
  onProblem,
  onNavigate,
}: CollectionItemProps) {
  const [expanded, setExpanded] = useState(false);

  const supplier = item.expand?.supplier;
  const itemType = getItemType(item);

  const coords = parseCoordinates(supplier?.coordinates);
  const hasCoords = coords !== null;

  const description = item.description || 'Unknown item';
  const expectedQty = item.order_qty || item.quantity || 0;

  return (
    <div
      className={cn(
        'bg-white rounded-xl card-shadow mb-3 overflow-hidden animate-fade-in',
        (item.item_status === 'problem' || item.problem_flag) && 'border-l-4 border-red-500',
        item.item_status === 'assigned' && 'border-l-4 border-orange-500',
        item.driver_status === 'assigned' && 'border-l-4 border-orange-500'
      )}
    >
      {/* Header */}
      <div
        className="p-4 cursor-pointer active:bg-gray-50 transition-colors"
        onClick={() => setExpanded(!expanded)}
      >
        <div className="flex items-start justify-between">
          <div className="flex-1 min-w-0">
            <div className="flex items-center gap-2 mb-1">
              <span className={cn('flex-shrink-0', itemType.color)}>
                {itemType.icon}
              </span>
              <h3 className="font-semibold text-sm leading-tight truncate">
                {description}
              </h3>
              <span
                className={cn(
                  'text-[10px] px-1.5 py-0.5 rounded-full font-medium flex-shrink-0',
                  itemType.type === 'problem' && 'bg-red-100 text-red-700',
                  itemType.type === 'breakdown' && 'bg-orange-100 text-orange-700',
                  itemType.type === 'repair' && 'bg-amber-100 text-amber-700',
                  itemType.type === 'stock' && 'bg-purple-100 text-purple-700',
                  itemType.type === 'normal' && 'bg-orange-100 text-orange-700'
                )}
              >
                {itemType.label}
              </span>
            </div>

            <div className="text-xs text-gray-500 mt-1 space-y-0.5">
              <p className="font-medium text-gray-700">
                {supplier?.suppliername || 'Unknown Supplier'}
              </p>
              <p>Expected: {expectedQty} units</p>
              {item.expand?.order?.order_number && <p>Order: {item.expand.order.order_number}</p>}
              {item.expand?.purchase_order?.po_number && <p>PO: {item.expand.purchase_order.po_number}</p>}
              {item.collection_date && (
                <p>Planned: {formatDate(item.collection_date)}</p>
              )}
              {item.selling_price && (
                <p className="text-green-600 font-medium">
                  {formatCurrency(item.selling_price * expectedQty)}
                </p>
              )}
            </div>
          </div>

          <div className="flex flex-col items-end gap-2 ml-2">
            {expanded ? (
              <ChevronUp size={20} className="text-gray-400" />
            ) : (
              <ChevronDown size={20} className="text-gray-400" />
            )}
          </div>
        </div>
      </div>

      {/* Expanded Details */}
      {expanded && (
        <div className="px-4 pb-4 border-t border-gray-100 pt-3">
          {item.notes && (
            <div className="bg-yellow-50 border border-yellow-200 rounded-lg p-2 mb-3">
              <p className="text-xs text-yellow-800 flex items-start gap-1.5">
                <AlertCircle size={14} className="flex-shrink-0 mt-0.5" />
                <span>{item.notes}</span>
              </p>
            </div>
          )}

          {item.problem_notes && (
            <div className="bg-red-50 border border-red-200 rounded-lg p-2 mb-3">
              <p className="text-xs text-red-700 flex items-start gap-1.5">
                <AlertTriangle size={14} className="flex-shrink-0 mt-0.5" />
                <span>{item.problem_notes}</span>
              </p>
            </div>
          )}

          {supplier?.supplieraddress && (
            <p className="text-xs text-gray-500 mb-3">
              <strong>Address:</strong> {supplier.supplieraddress}
            </p>
          )}

          {/* Action Buttons */}
          <div className="grid grid-cols-3 gap-2">
            <button
              onClick={(e) => {
                e.stopPropagation();
                onCollect(item);
              }}
              className={cn(
                'flex items-center justify-center gap-1.5 py-2.5 px-3 rounded-lg text-sm font-medium',
                'bg-green-500 text-white active:bg-green-600 transition-colors',
                'touch-manipulation'
              )}
            >
              <Check size={16} strokeWidth={2.5} />
              <span>Collect</span>
            </button>

            <button
              onClick={(e) => {
                e.stopPropagation();
                onProblem(item);
              }}
              className={cn(
                'flex items-center justify-center gap-1.5 py-2.5 px-3 rounded-lg text-sm font-medium',
                'bg-red-500 text-white active:bg-red-600 transition-colors',
                'touch-manipulation'
              )}
            >
              <AlertTriangle size={16} strokeWidth={2.5} />
              <span>Problem</span>
            </button>

            {hasCoords && coords && supplier && (
              <button
                onClick={(e) => {
                  e.stopPropagation();
                  onNavigate(coords.latitude, coords.longitude, supplier.suppliername);
                }}
                className={cn(
                  'flex items-center justify-center gap-1.5 py-2.5 px-3 rounded-lg text-sm font-medium',
                  'bg-orange-500 text-white active:bg-orange-600 transition-colors',
                  'touch-manipulation'
                )}
              >
                <Navigation size={16} strokeWidth={2.5} />
                <span>Navigate</span>
              </button>
            )}
          </div>
        </div>
      )}
    </div>
  );
}