"use client";

import Autoplay from "embla-carousel-autoplay";
import { AnimatePresence, motion } from "framer-motion";
import React, { useCallback, useMemo } from "react";

import {
  Carousel,
  type CarouselApi,
  CarouselContent,
  CarouselItem,
} from "@/components/ui/carousel";
import { useIsMobile } from "@/hooks/use-mobile";
import { cn } from "@/lib/utils";

interface Hero228Props {
  className?: string;
}

const TESTIMONIALS = [
  {
    id: 1,
    image: "/block-media/shadcnblocks/block/lummi/person1.jpeg",
    name: "علی رضایی",
  },
  {
    id: 2,
    image: "/block-media/shadcnblocks/block/lummi/person2.jpeg",
    name: "سارا محمدی",
  },
  {
    id: 3,
    image: "/block-media/shadcnblocks/block/lummi/person3.jpeg",
    name: "رضا کریمی",
  },
  {
    id: 4,
    image: "/block-media/shadcnblocks/block/lummi/person4.jpeg",
    name: "نرگس حسینی",
  },
  {
    id: 5,
    image: "/block-media/shadcnblocks/block/lummi/person5.jpeg",
    name: "امیر نوری",
  },
  {
    id: 6,
    image: "/block-media/shadcnblocks/block/lummi/bw3.jpeg",
    name: "الهام کاظمی",
  },
  {
    id: 7,
    image: "/block-media/shadcnblocks/block/lummi/bw11.jpeg",
    name: "کیان موسوی",
  },
] as const;

const Hero228 = ({ className }: Hero228Props) => {
  const [api, setApi] = React.useState<CarouselApi>();
  const [current, setCurrent] = React.useState(0);

  React.useEffect(() => {
    if (!api) return;

    api.on("select", () => {
      setCurrent(api.selectedScrollSnap());
    });
  }, [api]);

  const isMobile = useIsMobile();
  const slideCount = isMobile
    ? TESTIMONIALS.length
    : TESTIMONIALS.length + 2;

  const activeName =
    TESTIMONIALS[current % TESTIMONIALS.length]?.name ?? TESTIMONIALS[0].name;

  const getImageSrc = useCallback((index: number) => {
    if (index === TESTIMONIALS.length) return TESTIMONIALS[0].image;
    if (index === TESTIMONIALS.length + 1) return TESTIMONIALS[1].image;
    if (index === TESTIMONIALS.length + 2) return TESTIMONIALS[2].image;
    return TESTIMONIALS[index]?.image ?? TESTIMONIALS[0].image;
  }, []);

  // RTL track: current is on the physical right, then center, then left
  const getRotation = useCallback(
    (index: number) => {
      if (index === current) {
        return "md:relative md:z-0 md:translate-x-40 md:scale-75 md:rotate-45";
      }
      if (index === current + 1) {
        return "md:relative md:z-10 md:rotate-0";
      }
      if (index === current + 2) {
        return "md:relative md:z-0 md:-translate-x-40 md:scale-75 md:-rotate-45";
      }
      return "";
    },
    [current],
  );

  const scrollbarBars = useMemo(
    () =>
      [...Array(40)].map((_, item) => (
        <motion.div
          key={item}
          initial={{
            opacity: 0.2,
            filter: "blur(1px)",
          }}
          animate={{
            opacity: item % 5 === 0 ? 1 : 0.2,
            filter: "blur(0px)",
          }}
          transition={{
            duration: 0.2,
            delay: item % 5 === 0 ? (item / 5) * 0.05 : 0,
            ease: "easeOut",
          }}
          className={cn(
            "w-px bg-foreground",
            item % 5 === 0 ? "h-[15px]" : "h-[10px]",
          )}
        />
      )),
    [],
  );

  return (
    <section className={cn("relative w-full overflow-hidden bg-background py-32", className)}>
      <div className="container flex min-w-0 flex-col items-center justify-center gap-4 text-center">
        <h1 className="max-w-3xl text-balance text-2xll font-medium tracking-tighter text-foreground md:px-9 md:text-2xll">
          <span className="font-playfair italic">همه</span> ابزارهای لازم برای{" "}
          <span className="font-playfair italic">خلاق و</span> توسعه سریع
        </h1>
        <p className="mt-5 max-w-xl text-balance text-muted-foreground/80">
          صدها بلاک و کامپوننت آماده مبتنی بر رابط کاربری، استایل‌دهی مدرن و ری یو آی که مستقیماً در پروژه‌های شما قابل استفاده هستند.
        </p>

        <Carousel
          className="relative w-full min-w-0 max-w-5xl overflow-hidden"
          opts={{
            loop: true,
            align: "start",
            slidesToScroll: 1,
            direction: "rtl",
          }}
          plugins={[
            Autoplay({
              delay: 1000,
              stopOnInteraction: true,
            }),
          ]}
          setApi={setApi}
        >
          {/* Override -ml-4 / pl-4 — they break RTL track sizing */}
          <CarouselContent className="-ml-0!">
            {Array.from({ length: slideCount }).map((_, index) => (
              <CarouselItem
                key={index}
                className="my-10 basis-full pl-0! md:basis-1/3"
              >
                <div
                  className={cn(
                    "h-105 w-full min-w-0 overflow-hidden transition-transform duration-500 ease-in-out",
                    getRotation(index),
                  )}
                >
                  <img
                    src={getImageSrc(index)}
                    className="size-full object-cover"
                    alt={activeName}
                  />
                </div>
              </CarouselItem>
            ))}
          </CarouselContent>
          <div className="absolute inset-x-0 bottom-0 flex w-full translate-y-full flex-col items-center justify-center gap-2">
            <div className="flex gap-2">{scrollbarBars}</div>
            <AnimatePresence mode="popLayout" initial={false}>
              <motion.p
                key={activeName}
                className="w-full text-lg font-medium"
                initial={{ opacity: 0, y: 20, scale: 0.9, filter: "blur(5px)" }}
                animate={{ opacity: 1, y: 0, scale: 1, filter: "blur(0px)" }}
                exit={{ opacity: 0, y: -20, scale: 0.9, filter: "blur(5px)" }}
                transition={{ duration: 0.5 }}
              >
                {activeName}
              </motion.p>
            </AnimatePresence>
            <div className="flex gap-2">{scrollbarBars}</div>
          </div>
        </Carousel>
      </div>
    </section>
  );
};

export { Hero228 };