/* eslint-disable react-hooks/exhaustive-deps */
import gsap from "gsap";
import { useState, useEffect } from "react";
import { isMobile } from "react-device-detect";
import { useSwipeable } from "react-swipeable";
import { Transition } from "react-transition-group";
import { useNavigate } from "react-router-dom";
import Button from "../Button";
import LeftArrowSliderIcon from "../icons/LeftArrowSliderIcon";
import RightArrowSliderIcon from "../icons/RightArrowSliderIcon";
import useSequence from "../../store/useSequence";
import SequenceHighlighting from "./SequenceHighlighting";

const arrayLength = 360;
const keyframes: number[] = [50, 177, 247, 338];
// const keyframes: number[] = [50, 177, 248, 338];

interface SequenceSliderProps {
  path: string;
}

function SequenceSlider({ path }: SequenceSliderProps) {
  const [selectedImageRightIndex, setSelectedRightImageIndex] =
    useState<number>(keyframes[3]);
  const [selectedImageLeftKeyframe, setSelectedImageLeftKeyframe] =
    useState<number>(arrayLength - keyframes[3]);
  const [isAnimate, setIsAnimate] = useState<boolean>(false);
  const [loadedImages, setLoadedImages] = useState<number>(0);
  const [keyframeIndex, setKeyframeIndex] = useState<number>(3);
  const { setCurrentCompassRotate, currentCompassRotate } = useSequence();
  const [width, setWidth] = useState<number>();
  const [top, setTop] = useState<number>();
  const navigate = useNavigate();

  useEffect(() => {
    setCurrentCompassRotate(keyframes[3]);
  }, []);

  const handlers = useSwipeable({
    trackMouse: true,
    onSwipedLeft: () => !isAnimate && next(),
    onSwipedRight: () => !isAnimate && prev(),
  });

  function handleLoad() {
    setLoadedImages((prev) => prev + 1);
  }

  function animateToRight(currentOffset: number) {
    const obj = { selectedImageIndex: selectedImageRightIndex };
    setCurrentCompassRotate(currentCompassRotate + currentOffset);

    gsap.to(obj, {
      selectedImageIndex: selectedImageRightIndex + currentOffset,
      duration: 0.75,
      ease: "power1.inOut",
      onUpdate: () => {
        const roundedIndex = Math.round(obj.selectedImageIndex);

        if (roundedIndex >= arrayLength) {
          setSelectedRightImageIndex(roundedIndex - arrayLength);
          setSelectedImageLeftKeyframe(
            arrayLength - (roundedIndex - arrayLength)
          );
        } else {
          setSelectedRightImageIndex(roundedIndex);
          setSelectedImageLeftKeyframe(arrayLength - roundedIndex);
        }
      },
      onComplete: () => {
        setIsAnimate(false);
      },
    });
  }

  function animateToLeft(currentOffset: number) {
    const obj = { selectedImageIndex: selectedImageLeftKeyframe };
    setCurrentCompassRotate(currentCompassRotate - currentOffset);

    gsap.to(obj, {
      selectedImageIndex: selectedImageLeftKeyframe + currentOffset,
      duration: 0.75,
      ease: "power1.inOut",
      onUpdate: () => {
        const roundedIndex = Math.round(obj.selectedImageIndex);

        if (roundedIndex > arrayLength) {
          setSelectedRightImageIndex(
            arrayLength - (roundedIndex - arrayLength)
          );
          setSelectedImageLeftKeyframe(roundedIndex - arrayLength);
        } else {
          setSelectedImageLeftKeyframe(roundedIndex);
          setSelectedRightImageIndex(arrayLength - roundedIndex);
        }
      },
      onComplete: () => {
        setIsAnimate(false);
      },
    });
  }

  function next() {
    const updatedKeyframeIndex =
      keyframeIndex !== keyframes.length - 1 ? keyframeIndex + 1 : 0;
    const currentOffset =
      keyframeIndex !== keyframes.length - 1
        ? keyframes[updatedKeyframeIndex] - keyframes[keyframeIndex]
        : 360 - keyframes[keyframeIndex] + keyframes[0];

    setKeyframeIndex(updatedKeyframeIndex);

    setIsAnimate(true);
    animateToRight(currentOffset);
  }

  function prev() {
    const updatedKeyframeIndex =
      keyframeIndex !== 0 ? keyframeIndex - 1 : keyframes.length - 1;
    const currentOffset =
      keyframeIndex !== 0
        ? keyframes[keyframeIndex] - keyframes[updatedKeyframeIndex]
        : 360 - keyframes[updatedKeyframeIndex] + keyframes[keyframeIndex];

    setKeyframeIndex(updatedKeyframeIndex);

    setIsAnimate(true);
    animateToLeft(currentOffset);
  }

  function handleResize() {
    setWidth(window.innerWidth);
    setTop(window.innerWidth / 2 - window.innerHeight / 2);
  }

  useEffect(() => {
    handleResize();
    window.addEventListener("resize", handleResize);
    return () => window.removeEventListener("resize", handleResize);
  }, []);

  function handleOnSequenceClick(): void {
    navigate("./wing");
  }

  return (
    <div
      {...handlers}
      className="absolute w-full h-full overflow-hidden bg-black top-0 left-0 z-10"
    >
      <div
        className="absolute left-0"
        style={{ width: `${width}px`, height: `${width}px`, top: `-${top}px` }}
      >
        <div
          className={`duration-300 transition-opacity ease-in-out opacity-100`}
        >
          {Array.from({ length: arrayLength }).map((_, index) => (
            <>
              <img
                key={index}
                width={`${width}px`}
                height={`${width}px`}
                src={`${path}/${index + 1}.${isMobile ? "jpg" : "jpg"}`}
                alt=""
                className={`absolute ${
                  index === selectedImageRightIndex
                    ? "opacity-100"
                    : "opacity-0"
                }`}
                onLoad={handleLoad}
              />
            </>
          ))}
        </div>
        <SequenceHighlighting
          keyframe={selectedImageRightIndex + 2}
          onClick={handleOnSequenceClick}
        />
      </div>
      <Button
        className={`p-3 rounded-full transition-colors absolute left-6 top-[calc(50%-24px)] z-50 ${
          isAnimate ? "opacity-50" : "opacity-100"
        }`}
        buttonType="fab"
        icon={<LeftArrowSliderIcon />}
        onClick={prev}
      />
      <Button
        className={`p-3 rounded-full transition-colors absolute right-6 top-[calc(50%-24px)] z-50 ${
          isAnimate ? "opacity-50" : "opacity-100"
        }`}
        buttonType="fab"
        icon={<RightArrowSliderIcon />}
        onClick={next}
      />
      <div
        className="absolute left-0 z-40 select-none"
        style={{ width: `${width}px`, height: `${width}px`, top: `-${top}px` }}
      >
        <div
          className={`transition-opacity duration-75 ${
            keyframes.includes(selectedImageRightIndex)
              ? "opacity-100"
              : "opacity-0"
          }`}
        ></div>
      </div>

      <Transition
        in={loadedImages !== arrayLength}
        timeout={300}
        mountOnEnter
        unmountOnExit
      >
        {(state) => (
          <div
            className={`absolute top-0 left-0 w-full h-full flex items-center justify-center bg-neutral-950 z-50 transition-opacity duration-300 ${state}`}
          >
            <h2 className="text-2xl font-tenor text-white whitespace-nowrap">
              Loading... {Math.round((100 / arrayLength) * loadedImages)} %
            </h2>
          </div>
        )}
      </Transition>
    </div>
  );
}

export default SequenceSlider;