'use client';

import CategoryImage from '@/assets/water-bottle.png';
import { category_api } from '@/shared/config/api/category/api';
import { product_api } from '@/shared/config/api/product/api';
import { BASE_URL } from '@/shared/config/api/URLs';
import { Link, useRouter } from '@/shared/config/i18n/navigation';
import { cn } from '@/shared/lib/utils';
import { AspectRatio } from '@/shared/ui/aspect-ratio';
import { Button } from '@/shared/ui/button';
import { Card } from '@/shared/ui/card';
import {
  Carousel,
  CarouselContent,
  CarouselItem,
  type CarouselApi,
} from '@/shared/ui/carousel';
import { Skeleton } from '@/shared/ui/skeleton';
import CategoryCarousel from '@/widgets/categories/ui/category-carousel';
import { ProductCard } from '@/widgets/categories/ui/product-card';
import { useQuery } from '@tanstack/react-query';
import { AlertCircle, ChevronLeft, ChevronRight } from 'lucide-react';
import { useTranslations } from 'next-intl';
import Image from 'next/image';
import { useEffect, useState } from 'react';
import 'swiper/css';
import { banner_api } from '../lib/api';

const Welcome = () => {
  const [api, setApi] = useState<CarouselApi>();
  const [apiPro, setApiPro] = useState<CarouselApi>();
  const [canScrollPrev, setCanScrollPrev] = useState(false);
  const [canScrollNext, setCanScrollNext] = useState(false);
  const router = useRouter();
  const t = useTranslations();

  const { data, isLoading, isError } = useQuery({
    queryKey: ['banner_list'],
    queryFn: () => banner_api.getBanner(),
    select(data) {
      return data.data;
    },
  });

  useEffect(() => {
    if (!apiPro) return;

    const updateButtons = () => {
      setCanScrollPrev(apiPro.canScrollPrev());
      setCanScrollNext(apiPro.canScrollNext());
    };

    updateButtons();
    apiPro.on('select', updateButtons);
    apiPro.on('reInit', updateButtons);

    return () => {
      apiPro.off('select', updateButtons);
      apiPro.off('reInit', updateButtons);
    };
  }, [apiPro]);

  const scrollPrevPro = () => {
    if (apiPro) {
      apiPro?.scrollPrev();
    }
  };

  const scrollNextPro = () => {
    if (apiPro) {
      apiPro?.scrollNext();
    }
  };

  const { data: category } = useQuery({
    queryKey: ['category_list'],
    queryFn: () => category_api.getCategory({ page: 1, page_size: 99 }),
    select(data) {
      return data.data;
    },
  });

  const {
    data: allProducts,
    isLoading: allProductsLoading,
    isError: allProductsError,
  } = useQuery({
    queryKey: ['all_products'],
    queryFn: () => banner_api.getAllProducts(),
    select(data) {
      return data.data;
    },
  });

  const scrollPrev = () => {
    if (api?.canScrollPrev()) {
      api?.scrollPrev();
    } else if (!api?.canScrollPrev()) {
      api?.scrollTo(api?.slideNodes().length - 1);
    }
  };

  const scrollNext = () => {
    if (api?.canScrollNext()) {
      api?.scrollNext();
    } else if (!api?.canScrollNext()) {
      api?.scrollTo(0);
    }
  };

  const { data: product, isLoading: productLoading } = useQuery({
    queryKey: ['list'],
    queryFn: () =>
      product_api.list({
        page: 1,
        page_size: 16,
      }),
    select(data) {
      return data.data;
    },
  });

  return (
    <>
      <div className="custom-container">
        <Carousel
          className="w-full"
          setApi={setApi}
          opts={{
            align: 'start',
            dragFree: true, // 🔥 free scroll
          }}
        >
          <CarouselContent>
            {isLoading && (
              <CarouselItem className="relative">
                <Skeleton className="w-full h-[200px]" />
              </CarouselItem>
            )}
            {isError && (
              <CarouselItem className="relative gap-2 bg-gray-300/20 rounded-xl flex flex-col justify-center items-center">
                <AlertCircle className="size-10 text-red-500" />
                <p className="text-red-500">Banner yuklanmadi. Xatolik yuz</p>
              </CarouselItem>
            )}
            {data &&
              data.map((banner, index) => (
                <CarouselItem key={index} className="relative">
                  <AspectRatio
                    ratio={16 / 7}
                    className="relative overflow-hidden rounded-2xl"
                  >
                    <Image
                      src={BASE_URL + banner.banner}
                      alt={banner.id}
                      width={900}
                      unoptimized
                      height={900}
                      className="object-cover w-full h-full"
                    />
                  </AspectRatio>
                  <Button
                    onClick={scrollNext}
                    className="absolute max-lg:w-6 max-lg:h-6 top-1/2 -translate-y-1/2 right-2 cursor-pointer"
                    variant={'secondary'}
                    size={'icon'}
                    aria-label="next images"
                  >
                    <ChevronRight className="size-6 max-lg:size-5" />
                  </Button>
                  <Button
                    onClick={scrollPrev}
                    className="absolute max-lg:w-6 max-lg:h-6 top-1/2 -translate-y-1/2 left-5 cursor-pointer"
                    variant={'secondary'}
                    size={'icon'}
                    aria-label="prev images"
                  >
                    <ChevronLeft className="size-6 max-lg:size-5" />
                  </Button>
                </CarouselItem>
              ))}
          </CarouselContent>
        </Carousel>

        <Carousel
          opts={{
            align: 'start',
            dragFree: true,
          }}
          className="w-full mt-5"
        >
          <CarouselContent className="py-2 px-1 pr-[12%]">
            {category &&
              category.map((banner, index) => (
                <CarouselItem
                  key={index}
                  className="basis-1/5 max-lg:basis-1/3 max-md:basis-1/2 max-xs:basis-1/1"
                >
                  <Link href={`/category/${banner.id}`}>
                    <div className="flex flex-col gap-1 items-center justify-start bg-white p-3 rounded-lg shadow-md cursor-pointer space-x-3">
                      <Image
                        src={
                          banner.image ? BASE_URL + banner.image : CategoryImage
                        }
                        alt={banner.name}
                        unoptimized
                        width={500}
                        height={500}
                        className="w-full h-16 object-contain"
                      />
                      <p className="text-sm font-bold line-clamp-1 leading-tight text-slate-700">
                        {banner.name}
                      </p>
                    </div>
                  </Link>
                </CarouselItem>
              ))}
          </CarouselContent>
        </Carousel>
      </div>
      <section className="relative custom-container mt-5 justify-center items-center border-b border-slate-200">
        <div className="flex items-center justify-between pb-3">
          <div
            className="flex items-center gap-2 group cursor-pointer"
            onClick={() => router.push(`/all-product/`)}
          >
            <h2 className="text-2xl font-bold text-slate-800 group-hover:text-blue-600 transition-colors">
              {t('Barcha mahsulotlar')}
            </h2>
            <div className="p-1.5 bg-slate-100 rounded-full group-hover:bg-blue-100 transition-all">
              <ChevronRight className="text-slate-600 group-hover:text-blue-600 group-hover:translate-x-0.5 transition-all" />
            </div>
          </div>
        </div>
        <div className="flex items-center justify-between pb-3">
          <div className="flex items-center gap-2 group cursor-pointer">
            <div className="p-1.5 bg-slate-100 rounded-full group-hover:bg-blue-100 transition-all"></div>
          </div>
        </div>
        <Carousel
          opts={{
            align: 'start',
            dragFree: true,
          }}
          className="w-full"
          setApi={setApiPro}
        >
          <CarouselContent className="pr-[12%] sm:pr-0">
            {productLoading &&
              Array.from({ length: 6 }).map((__, index) => (
                <CarouselItem
                  key={index}
                  className="basis-1/2 sm:basis-1/3 md:basis-1/4 lg:basis-1/5 xl:basis-1/6 pb-2"
                >
                  <Card className="p-3 space-y-3 rounded-xl">
                    <Skeleton className="h-40 sm:h-48 md:h-56 w-full rounded-lg" />
                    <Skeleton className="h-4 w-3/4" />
                    <Skeleton className="h-4 w-1/2" />
                    <Skeleton className="h-10 w-full rounded-lg" />
                  </Card>
                </CarouselItem>
              ))}
            {product &&
              !isLoading &&
              product.results
                .filter((product) => product.state === 'A')
                .map((product) => (
                  <CarouselItem
                    key={product.id}
                    className="basis-1/2 sm:basis-1/3 md:basis-1/4 lg:basis-1/5 xl:basis-1/6 pb-2"
                  >
                    <ProductCard product={product} />
                  </CarouselItem>
                ))}
          </CarouselContent>
        </Carousel>
        <Button
          onClick={scrollNextPro}
          className={cn(
            'absolute top-0 right-4 max-lg:hidden text-white cursor-pointer',
            canScrollNext
              ? 'bg-green-600 hover:bg-green-600/70'
              : 'bg-green-600/50 cursor-not-allowed',
          )}
          disabled={!canScrollNext}
          aria-label="next images"
          size="icon"
        >
          <ChevronRight className="size-6" />
        </Button>
        <Button
          onClick={scrollPrevPro}
          className={cn(
            'absolute top-0 right-16 max-lg:hidden text-white cursor-pointer',
            canScrollPrev
              ? 'bg-green-600 hover:bg-green-600/70'
              : 'bg-green-600/50 cursor-not-allowed',
          )}
          aria-label="prev images"
          disabled={!canScrollPrev}
          size="icon"
        >
          <ChevronLeft className="size-6" />
        </Button>
      </section>

      {productLoading || allProductsLoading ? (
        <section className="relative custom-container mt-5 justify-center items-center border-b border-slate-200">
          <Carousel
            opts={{
              align: 'start',
              dragFree: true,
            }}
            className="w-full"
            setApi={setApiPro}
          >
            <CarouselContent className="pr-[12%] sm:pr-0">
              {Array.from({ length: 6 }).map((__, index) => (
                <CarouselItem
                  key={index}
                  className="basis-1/2 sm:basis-1/3 md:basis-1/4 lg:basis-1/5 xl:basis-1/6 pb-2"
                >
                  <Card className="p-3 space-y-3 rounded-xl">
                    <Skeleton className="h-40 sm:h-48 md:h-56 w-full rounded-lg" />
                    <Skeleton className="h-4 w-3/4" />
                    <Skeleton className="h-4 w-1/2" />
                    <Skeleton className="h-10 w-full rounded-lg" />
                  </Card>
                </CarouselItem>
              ))}
            </CarouselContent>
          </Carousel>
        </section>
      ) : (
        allProducts?.map((e) => (
          <CategoryCarousel
            category={e}
            key={e.id}
            isLoading={allProductsLoading}
            isError={allProductsError}
          />
        ))
      )}
    </>
  );
};

export default Welcome;
