import { useState } from 'react'
import { Link, useLocation } from 'react-router'
import { twMerge } from 'tailwind-merge'

import { CarouselNextIcon } from '~/components/icons/carousel-next'
import { CarouselPreviousIcon } from '~/components/icons/carousel-previous'
import { useNewsContext } from '~/contexts/news'
import type { TNews } from '~/types/news'

import { Button } from './button'

export const Carousel = (properties: TNews) => {
  const { setIsSuccessOpen } = useNewsContext()
  const [currentIndex, setCurrentIndex] = useState(0)
  const { pathname } = useLocation()
  const hasCategory = pathname.includes('/category/')

  const { title, description, items, type } = properties
  const itemsPerPage = type === 'hero' ? 1 : 3
  const totalPages = Math.ceil(items.length / itemsPerPage)

  const nextSlide = () => {
    setCurrentIndex((previousIndex) => (previousIndex + 1) % totalPages)
  }

  const previousSlide = () => {
    setCurrentIndex(
      (previousIndex) => (previousIndex - 1 + totalPages) % totalPages,
    )
  }
  return (
    <div className="">
      <div className="mt-3 mb-3 flex items-center justify-between border-b border-black pb-3 sm:mb-[30px] sm:pb-[30px]">
        <div className="grid">
          <h2 className="text-2xl font-extrabold text-[#2E2F7C] sm:text-4xl">
            {title}
          </h2>
          <p className="text-xl font-light text-[#777777] italic sm:text-2xl">
            {description}
          </p>
        </div>
        {!hasCategory && (
          <div className="flex gap-2.5">
            <CarouselPreviousIcon
              color="#DCDCDC"
              className="cursor-pointer"
              width={45}
              height={45}
              onClick={previousSlide}
            />
            <CarouselNextIcon
              color="#2E2F7C"
              className="cursor-pointer"
              width={45}
              height={45}
              onClick={nextSlide}
            />
          </div>
        )}
      </div>

      <div
        className={twMerge(
          'grid sm:gap-x-8',
          type === 'hero' ? 'grid-cols-1' : 'sm:grid-cols-3',
        )}
      >
        {items
          .slice(currentIndex * itemsPerPage, (currentIndex + 1) * itemsPerPage)
          .map(({ featured, title, content, tags, slug, isPremium }, index) => (
            <div
              key={index}
              className={twMerge(
                'grid sm:gap-x-8',
                type === 'hero' ? 'grid-cols-1 sm:grid-cols-3' : '',
              )}
            >
              <img
                className={twMerge(
                  'w-full object-cover',
                  type === 'hero'
                    ? 'col-span-2 aspect-[174/100]'
                    : 'aspect-[5/4] rounded-md',
                )}
                src={featured}
                alt={title}
              />
              <div
                className={twMerge(
                  'flex flex-col justify-between',
                  type === 'hero' ? 'gap-7' : 'gap-4',
                )}
              >
                <div
                  className={twMerge(
                    'uppercase',
                    type === 'hero' ? 'hidden' : '',
                  )}
                >
                  {tags?.map((item) => (
                    <span
                      key={`${index}-${item}`}
                      className="my-3 mr-2 inline-block rounded bg-[#F4F4F4] px-3 py-1 font-bold text-[#777777]"
                    >
                      {item}
                    </span>
                  ))}
                  {isPremium && (
                    <span className="my-3 mr-2 inline-block rounded bg-[#D1C675] px-3 py-1 font-bold text-[#9D761D]">
                      Premium Content
                    </span>
                  )}
                </div>

                <div>
                  <h3
                    className={twMerge(
                      'mt-2 w-full font-bold sm:mt-0',
                      type === 'hero'
                        ? 'text-2xl sm:text-4xl'
                        : 'text-xl sm:text-2xl',
                    )}
                  >
                    {title}
                  </h3>
                  <p className="text-md mt-5 text-[#777777] sm:text-xl">
                    {content}
                  </p>
                </div>
                <Button
                  size="block"
                  {...(isPremium
                    ? {
                        onClick: () => {
                          setIsSuccessOpen('warning')
                        },
                        to: '',
                      }
                    : { as: Link, to: `/detail/${slug}` })}
                  className={twMerge('', type === 'hero' ? '' : 'mb-5')}
                >
                  View More
                </Button>
              </div>
            </div>
          ))}
      </div>

      {hasCategory && (
        <div className="my-5 mt-5 flex flex-row-reverse">
          <div className="flex gap-2.5">
            <CarouselPreviousIcon
              color="#DCDCDC"
              className="cursor-pointer"
              width={45}
              height={45}
              onClick={previousSlide}
            />
            <CarouselNextIcon
              color="#2E2F7C"
              className="cursor-pointer"
              width={45}
              height={45}
              onClick={nextSlide}
            />
          </div>
        </div>
      )}
    </div>
  )
}