<template>
  <article class="card">
    <header>
      <h1>{{ item.title }}</h1>
      <h4>{{ item.field_short_description }}</h4>
      <span class="ref">{{ item.field_reference }}</span>
    </header>
    <nav class="tools">
      <section class="tool flags">
        <span class="btn mdi mdi-folder-outline"/>
        <div class="tool-content">
          <ul>
            <li  v-if="flagcolls" v-for="coll in flagcolls" :key="coll.id">
              <span
                class="flag mdi"
                :class="[
                  flagIsLoading(coll.id) ? 'mdi-loading mdi-spin' : flagIsActive(coll.id) ? 'mdi-close isActive' : 'mdi-plus'
                ]"
                :collid="coll.id"
                @click.prevent="onFlagActionCard"
              >
                {{ coll.name }}
              </span>
            </li>
          </ul>
        </div>
      </section>
    </nav>
    <section class="images" v-switcher>
      <figure
        v-for="(img, index) in item.images"
        :key="img.url"
      >
        <img
          class="lazy"
          v-lazy="index"
          :data-src="img.url"
          :title="img.title"
        />
        <img class="blank" :src="blanksrc">
      </figure>
    </section>
  </article>
</template>

<script>
import { mapState, mapActions } from 'vuex'

export default {
  name: "Card",
  props: ['item'],
  data() {
    return {
      blanksrc:`${drupalSettings.path.themePath}/assets/img/blank.gif`,
      loadingFlag: false
    }
  },
  computed: {
    ...mapState({
      flagcolls: state => state.User.flagcolls
    })
  },
  directives: {
    lazy: {
      bind(img,binding){
        // console.log('lazy bind', img, binding);
        if(binding.value === 0){
          img.setAttribute('src', img.getAttribute('data-src'))
          img.removeAttribute('data-src')
          img.classList.remove('lazy')
        }
      }
    },
    switcher: {
      inserted(el,binding){
        // switch images on mousemove
        el.addEventListener('mousemove', function(event) {
          let figs = this.querySelectorAll('figure')
          // console.log('mousemove', this, event, figs.length);
          // let len = figs.length
          // let w = this.clientWidth;
          // let g = w / len;
          // let delta = Math.floor(event.layerX / g)
          let delta = Math.floor(event.layerX / (this.clientWidth / figs.length))
          // console.log('delta', delta);
          figs.forEach((fig, index) => {
            // console.log(index);
            if(index == delta){
              fig.style.display = "block"
            }else{
              fig.style.display = "none"
            }
          })
        })
      }
    }
  },
  mounted() {
    // lazy load images on mouseover
    this.$el.addEventListener('mouseover', function(event) {
      let imgs = this.querySelectorAll('.images figure img.lazy')
      // console.log('mouseover', this, imgs);
      imgs.forEach((img) => {
        // console.log('forEach img',img);
        img.setAttribute('src', img.getAttribute('data-src'))
        img.removeAttribute('data-src')
        img.classList.remove('lazy')
      })
    }, {once : true})
  },
  methods: {
    ...mapActions({
      flag: 'User/flag',
      unFlag: 'User/unFlag'
    }),
    flagIsActive(collid) {
      // console.log(this.item.uuid);
      // console.log(this.flagcolls[collid].items_uuids);
      return this.flagcolls[collid].items_uuids.indexOf(this.item.uuid) !== -1;
    },
    flagIsLoading(collid) {
      // console.log(this.item.uuid);
      // console.log(this.flagcolls[collid].items_uuids);
      return collid === this.loadingFlag;
    },
    onFlagActionCard (e) {
      console.log("Card onFlagActionCard", e);
      if (!this.loadingFlag) {
        let collid = e.target.getAttribute('collid');
        let isActive = this.flagIsActive(collid);
        // console.log('collid', collid);
        // console.log("this.item", this.item);
        this.loadingFlag = collid;
        if (isActive) {
          this.unFlag({uuid: this.item.uuid, collid: collid})
          .then(data => {
            console.log("onFlagActionCard then", data);
            this.loadingFlag = false;
          })
        }else{
          
          this.flag({uuid: this.item.uuid, collid: collid})
          .then(data => {
            console.log("onFlagActionCard then", data);
            this.loadingFlag = false;
          })
        }
      }
    }
  }
}

</script>

<style lang="scss" scoped>

</style>
