import Image from "next/image";
import React, { useEffect, useRef, useState } from "react";

interface serviceData {
  image: string;
  title: string;
  mintitle: string;
  description: string;
  bulletList: string[];
  color: string;
  desc:string;
};
interface ServiceScrollStickyDivProps {
  serviceScrollDatas: serviceData[];
}

function ServiceScrollStickyDiv({serviceScrollDatas} : ServiceScrollStickyDivProps) {
  const cardRefs = useRef<HTMLDivElement[]>([]);
  const [scales, setScales] = useState<number[]>([]);

  useEffect(() => {
    setScales(new Array(serviceScrollDatas.length).fill(1));
  }, [serviceScrollDatas.length]);

  useEffect(() => {
    const handleScroll = () => {
      const newScales = cardRefs.current.map((card, index) => {
        if (!card) return 1;

        const nextCard = cardRefs.current[index + 1];
        if (!nextCard) return 1; // last card stays 1

        const rect = card.getBoundingClientRect();
        const nextRect = nextCard.getBoundingClientRect();

        const overlap = rect.bottom - nextRect.top;

        // start scaling only after 50% overlap
        const startOverlap = rect.height * 0.1;
        const maxOverlap = rect.height;

        if (overlap <= startOverlap) return 1;

        const progress = Math.min(
          (overlap - startOverlap) / (maxOverlap - startOverlap),
          1
        );

        // scale from 1 → 0.8
        return 1 - progress * 0.2;
      });

      setScales(newScales);
    };

    window.addEventListener("scroll", handleScroll);
    return () => window.removeEventListener("scroll", handleScroll);
  }, []);

  return (
    <div
      className="flex flex-wrap justify-center gap-y-5 relative"
      data-aos="fade-up"
      data-aos-anchor-placement="top-bottom"
      data-aos-duration="1500"
    >
      {serviceScrollDatas.map((item, index) => (
        <div key={index} className="w-full md:w-[80%] sticky top-32">
          <div
            ref={(el) => {
              if (el) cardRefs.current[index] = el;
            }}
            className={`rounded-lg md:rounded-4xl h-115 md:h-120 lg:h-105 transition-transform duration-100 ease-out`}
            style={{
              transform: `scale(${scales[index] || 1})`,
              backgroundColor: item.color,
            }}
          >
            <div className="flex flex-wrap gap-y-3">
              <div className="w-full flex justify-start flex-col">
                <div className="md:p-14 p-5">
                  <p className="text-[20px] lg:text-[35px] text-white font-semibold leading-tight">
                    {item.mintitle}
                  </p>
                  <div className="text-white text-[15px] md:text-[18px] my-5">
                    <p>{item.description}</p>
                  </div>
                  {/* <p className="text-[15px] text-white w-full max-w-[600px]">
                    {item.description}
                  </p> */}
                  <div>
                    <ul className="text-gray-300  ps-5">
                      {item.bulletList.map((list, i) => {
                        return (
                          <li
                            key={i}
                            className="text-[15px] md:text-[17px] flex items-center gap-x-2 mb-1"
                          >
                            <Image
                              src="/assets/icons/done.png"
                              alt=""
                              width={20}
                              height={20}
                            />
                            {list}
                          </li>
                        );
                      })}
                    </ul>
                  </div>
                  <div className="mt-5">
                    <p className="text-white text-[15px] md:text-[18px]">{item.desc}</p>
                  </div>
                </div>
              </div>
              {/* <div className="w-full md:w-[35%]">
                <Image
                  className="me-auto p-3"
                  src={item.image}
                  alt="icon"
                  width={600}
                  height={500}
                />
              </div> */}
            </div>
          </div>
        </div>
      ))}
    </div>
  );
}

export default ServiceScrollStickyDiv;