import { capitalize } from '../../utils'
import styles from './Card.module.scss'
import { createMemo, createSignal, Show } from 'solid-js'
import type { Topic } from '../../graphql/types.gen'
import { FollowingEntity } from '../../graphql/types.gen'

import { follow, unfollow } from '../../stores/zine/common'
import { clsx } from 'clsx'
import { useSession } from '../../context/session'
import { ShowOnlyOnClient } from '../_shared/ShowOnlyOnClient'
import { Icon } from '../_shared/Icon'
import { useLocalize } from '../../context/localize'
import { CardTopic } from '../Feed/CardTopic'

interface TopicProps {
  topic: Topic
  compact?: boolean
  subscribed?: boolean
  shortDescription?: boolean
  subscribeButtonBottom?: boolean
  additionalClass?: string
  isTopicInRow?: boolean
  iconButton?: boolean
  showPublications?: boolean
  showDescription?: boolean
  isCardMode?: boolean
}

export const TopicCard = (props: TopicProps) => {
  const { t } = useLocalize()
  const {
    session,
    isSessionLoaded,
    actions: { loadSession }
  } = useSession()

  const [isSubscribing, setIsSubscribing] = createSignal(false)

  const subscribed = createMemo(() => {
    if (!session()?.user?.slug || !session()?.news?.topics) {
      return false
    }

    return session()?.news.topics.includes(props.topic.slug)
  })

  const subscribe = async (really = true) => {
    setIsSubscribing(true)

    await (really
      ? follow({ what: FollowingEntity.Topic, slug: props.topic.slug })
      : unfollow({ what: FollowingEntity.Topic, slug: props.topic.slug }))

    await loadSession()
    setIsSubscribing(false)
  }

  return (
    <div class={styles.topicContainer}>
      <div
        class={styles.topic}
        classList={{
          row: !props.subscribeButtonBottom,
          [styles.topicCompact]: props.compact,
          [styles.topicInRow]: props.isTopicInRow
        }}
      >
        <div classList={{ 'col-sm-18 col-md-24 col-lg-14 col-xl-15': !props.subscribeButtonBottom }}>
          <Show when={props.topic.title && !props.isCardMode}>
            <h3 class={styles.topicTitle}>
              <a href={`/topic/${props.topic.slug}`}>{capitalize(props.topic.title || '')}</a>
            </h3>
          </Show>

          <Show when={props.isCardMode}>
            <CardTopic title={props.topic.title} slug={props.topic.slug} class={styles.cardMode} />
          </Show>

          <Show when={props.topic.pic}>
            <div class={styles.topicAvatar}>
              <a href={`/topic/${props.topic.slug}`}>
                <img src={props.topic.pic} alt={props.topic.title} />
              </a>
            </div>
          </Show>

          <div
            class={clsx(styles.topicDescription, 'text-truncate', styles.topicDescriptionShort)}
            classList={{ [styles.topicDescriptionShort]: props.shortDescription }}
          >
            Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec porta gravida urna, et vestibulum
            dolor fermentum malesuada. Aenean est arcu, imperdiet vel aliquet quis, egestas ac justo.
            Maecenas viverra enim a efficitur accumsan. Donec eu iaculis purus. Sed malesuada arcu sed nisl
            luctus ultrices. Maecenas eget odio vitae turpis sollicitudin rutrum. Fusce rutrum urna felis,
            id efficitur lacus faucibus et. Duis at libero dui. Quisque vitae pretium mi. Etiam non leo ut
            nisi ornare auctor sit amet et enim. Aenean tempor ullamcorper augue, et mattis augue vestibulum
            sed. Curabitur nec luctus sem. Phasellus imperdiet rhoncus lacus, in ultrices elit mollis ac.
            Donec luctus dignissim cursus. Pellentesque sed risus sodales, tincidunt urna a, cursus ligula.
            Curabitur nec nibh urna. Integer hendrerit quam eget diam malesuada, ac sagittis eros efficitur.
            Sed ut orci eu quam mattis commodo. Nullam elementum nulla massa. Morbi placerat, lorem vitae
            venenatis mollis, arcu erat sodales sapien, sit amet vehicula nunc tellus eget eros. Sed arcu
            massa, vehicula sit amet viverra ut, eleifend ac leo. Mauris volutpat ex at orci tempor sodales.
          </div>

          <Show when={props.showDescription && props.topic?.body}>
            <div
              class={clsx(styles.topicDescription, 'text-truncate')}
              classList={{ [styles.topicDescriptionShort]: props.shortDescription }}
            >
              {props.topic.body}
            </div>
          </Show>
        </div>
        <div
          class={styles.controlContainer}
          classList={{ 'col-sm-6 col-md-24 col-lg-10 col-xl-9': !props.subscribeButtonBottom }}
        >
          <ShowOnlyOnClient>
            <Show when={isSessionLoaded()}>
              <button
                onClick={() => subscribe(!subscribed())}
                class="button--light button--subscribe-topic"
                classList={{
                  [styles.buttonCompact]: props.compact,
                  [styles.isSubscribing]: isSubscribing(),
                  [styles.isSubscribed]: subscribed()
                }}
                disabled={isSubscribing()}
              >
                <Show when={props.iconButton}>
                  <Show when={subscribed()} fallback="+">
                    <Icon name="check-subscribed" />
                  </Show>
                </Show>
                <Show when={!props.iconButton}>
                  <Show when={subscribed()} fallback={t('Follow')}>
                    {t('Unfollow')}
                  </Show>
                </Show>
              </button>
            </Show>
          </ShowOnlyOnClient>
        </div>
      </div>
    </div>
  )
}