import { Check, Trash } from "lucide-react";
import { memo, useMemo } from "react";
import { QuantityControl } from "./QuantityControl";
import { formatPrice } from "../../utils/helpers";
import { CartItem as CartItemType } from "src/api/types";
import { isVideo } from "../MondrianProductList";
import { Button } from "../ui/button";

interface CartItemProps {
  item: CartItemType;
  onQuantityChange: (itemId: string, quantity: number) => void;
  onRemoveItem: (itemId: string) => void;
  isLoading: boolean;
  hasBorder: boolean;
}

export const CartItem = memo(function CartItem({
  item,
  onQuantityChange,
  onRemoveItem,
  isLoading,
  hasBorder,
}: CartItemProps) {
  // Memoize discount calculation
  const discountPercent = useMemo(() => {
    if (!item.productVariant?.discountPrice || !item.productVariant?.price) {
      return null;
    }
    return Math.round(
      ((Number(item.productVariant.price) -
        Number(item.productVariant.discountPrice)) /
        Number(item.productVariant.price)) *
        100
    );
  }, [item.productVariant?.discountPrice, item.productVariant?.price]);

  // Memoize video check
  const isVideoMedia = useMemo(
    () => isVideo(item.productVariant?.productImage || ""),
    [item.productVariant?.productImage]
  );
  return (
    <div
      className={`flex p-4 gap-4 w-full flex-col ${hasBorder && "border-b"}`}
    >
      <div className="flex gap-2 w-full items-center">
        {isVideoMedia ? (
          <video
            src={item.productVariant?.productImage}
            className="rounded-[5px] w-[116px] h-[116px] object-cover"
            muted
            loop
            autoPlay
            playsInline
          />
        ) : (
          <img
            src={item.productVariant?.productImage}
            alt={item.productVariant?.productTitle || ""}
            className="rounded-[5px] w-[116px] h-[116px] object-cover"
            loading="lazy"
          />
        )}
        <div className="flex flex-col gap-2">
          <p className="text-B14 font-bold">
            {item.productVariant?.productTitle || ""}
          </p>
          <p className="text-R12 text-GRAY line-clamp-1">
            کد کالا: {item.productVariant?.id || ""}
          </p>
        </div>
      </div>

      <ColorSelector
        color={
          item.productVariant?.color?.value !== "UNSELECTED"
            ? item.productVariant?.color?.info?.detail || ""
            : ""
        }
      />
      <SizeSelector
        size={
          item.productVariant?.size?.value !== "UNSELECTED"
            ? item.productVariant?.size?.info?.detail || ""
            : ""
        }
      />

      <div className="flex w-full items-center justify-between">
        <p className="text-B14 font-bold">قیمت واحد :</p>
        <p className="text-B14 font-bold">
          {formatPrice(item.productVariant?.price || "")} تومان
        </p>
      </div>

      {discountPercent ? (
        <div className="flex w-full items-center justify-between">
          <div className="flex items-center gap-2">
            <p className="text-B14 font-bold">مقدار تخفیف :</p>
            <div className="bg-BLACK rounded-full text-WHITE text-R14 px-2 py-1">
              {discountPercent}%
            </div>
          </div>
          <p className="text-B14 font-bold">
            {formatPrice(
              (
                Number(item.productVariant?.price) -
                Number(item.productVariant?.discountPrice)
              ).toString()
            )}{" "}
            تومان
          </p>
        </div>
      ) : null}

      {item?.productVariant?.stock && item?.productVariant?.stock > 0 ? (
        <div className="flex w-full items-center justify-between">
          <div className="flex items-center gap-2"></div>
          <QuantityControl
            isPending={isLoading}
            quantity={item.quantity}
            maxQuantity={item.productVariant?.stock || 0}
            onIncrease={() =>
              onQuantityChange(item.id || "", item.quantity + 1)
            }
            onDecrease={() =>
              onQuantityChange(item.id || "", item.quantity - 1)
            }
            onRemove={() => onRemoveItem(item.id || "")}
          />
        </div>
      ) : (
        <div className="flex w-full items-center justify-between">
          <p className="text-B14 font-bold">محصول در حال حاضر موجود نیست</p>
          <Button
            variant="dark"
            className="flex items-center gap-2 bg-red-500"
            size="sm"
            onClick={() => onRemoveItem(item.id || "")}
          >
            <Trash size={16} />
          </Button>
        </div>
      )}
    </div>
  );
});

// Color Selector Component
const ColorSelector = ({ color }: { color: string }) => (
  <>
    {color && (
      <div className="flex w-full items-center justify-between">
        <p className="text-B14 font-bold">رنگ :</p>
        <div
          className="w-10 h-10 rounded-[7px] flex items-center justify-center border border-BLACK"
          style={{
            backgroundColor: color,
          }}
        >
          <Check size={24} className="text-WHITE" />
        </div>
      </div>
    )}
  </>
);

// Size Selector Component
const SizeSelector = ({ size }: { size: string }) => (
  <>
    {size && (
      <div className="flex w-full items-center justify-between">
        <p className="text-B14 font-bold">سایز :</p>
        <p className="text-BLACK text-R12">{size}</p>
      </div>
    )}
  </>
);