<script>
import animateMixin from '../mixins/animate';
import eventHub from '../event_hub';
import tooltip from '../../vue_shared/directives/tooltip';
import { spriteIcon } from '../../lib/utils/common_utils';

export default {
  directives: {
    tooltip,
  },
  mixins: [animateMixin],
  props: {
    issuableRef: {
      type: [String, Number],
      required: true,
    },
    canUpdate: {
      required: false,
      type: Boolean,
      default: false,
    },
    titleHtml: {
      type: String,
      required: true,
    },
    titleText: {
      type: String,
      required: true,
    },
    showInlineEditButton: {
      type: Boolean,
      required: false,
      default: false,
    },
  },
  data() {
    return {
      preAnimation: false,
      pulseAnimation: false,
      titleEl: document.querySelector('title'),
    };
  },
  computed: {
    pencilIcon() {
      return spriteIcon('pencil', 'link-highlight');
    },
  },
  watch: {
    titleHtml() {
      this.setPageTitle();
      this.animateChange();
    },
  },
  methods: {
    setPageTitle() {
      const currentPageTitleScope = this.titleEl.innerText.split('·');
      currentPageTitleScope[0] = `${this.titleText} (${this.issuableRef}) `;
      this.titleEl.textContent = currentPageTitleScope.join('·');
    },
    edit() {
      eventHub.$emit('open.form');
    },
  },
};
</script>

<template>
  <div class="title-container">
    <h2
      :class="{
        'issue-realtime-pre-pulse': preAnimation,
        'issue-realtime-trigger-pulse': pulseAnimation,
      }"
      class="title"
      v-html="titleHtml"
    ></h2>
    <button
      v-if="showInlineEditButton && canUpdate"
      v-tooltip
      type="button"
      class="btn btn-default btn-edit btn-svg js-issuable-edit
      qa-edit-button"
      title="Edit title and description"
      data-placement="bottom"
      data-container="body"
      @click="edit"
      v-html="pencilIcon"
    ></button>
  </div>
</template>
