<template>
  <div ref="dropdown" class="inser-field-dropdown dropdown">
    <a class="open-dropdown-button collapsed" role="button" data-toggle="dropdown" id="fieldsContainer" aria-expanded="false">
      {{ i18n.t('label_templates.show.insert_dropdown.button') }}
      <i class="fas fa-chevron-down"></i>
    </a>
    <div class="dropdown-menu dropdown-menu-right" aria-labelledby="fieldsContainer">
      <div class="search-container sci-input-container">
        <label>
          {{ i18n.t('label_templates.show.insert_dropdown.button') }}
        </label>
        <a class="close-dropdown" data-toggle="dropdown">{{ i18n.t('general.cancel')}}</a>
        <input v-model="searchValue"
               type="text"
               class="sci-input-field"
               :placeholder="i18n.t('label_templates.show.insert_dropdown.search_placeholder')" />
      </div>
      <div class="fields-container">
        <div :key="`default_${index}`" v-for="(field, index) in filteredFields.default"
            data-toggle="tooltip"
            data-placement="right"
            :data-template="tooltipTemplate"
            class="field-element"
            :title="i18n.t('label_templates.show.insert_dropdown.field_code', {code: field.tag})"
            @click="$emit('insertField', field.tag)"
        >
          {{ field.key }}
          <i class="fas fa-plus-square"></i>
        </div>
        <div v-if="filteredFields.common.length" class="block-title">
          {{ i18n.t('label_templates.show.insert_dropdown.common_fields') }}
        </div>
        <div :key="`common_${index}`" v-for="(field, index) in filteredFields.common"
            data-toggle="tooltip"
            data-placement="right"
            :data-template="tooltipTemplate"
            class="field-element"
            :title="i18n.t('label_templates.show.insert_dropdown.field_code', {code: field.tag})"
            @click="$emit('insertField', field.tag)"
        >
          {{ field.key }}
          <i class="fas fa-plus-square"></i>
        </div>
        <template v-for="(repository, index) in filteredFields.repositories">
          <div :key="`repository_${index}`" class="block-title">
            {{ repository.repository_name }}
          </div>
          <div :key="`repository_${index}_${index1}`" v-for="(field, index1) in repository.tags"
            data-toggle="tooltip"
            data-placement="right"
            :data-template="tooltipTemplate"
            class="field-element"
            :title="i18n.t('label_templates.show.insert_dropdown.field_code', {code: field.tag})"
            @click="$emit('insertField', field.tag)"
          >
            {{ field.key }}
            <i class="fas fa-plus-square"></i>
          </div>
        </template>
        <div class="no-results" v-if="this.noResults">
          {{ i18n.t('label_templates.show.insert_dropdown.nothing_found') }}
        </div>
      </div>
    </div>
  </div>
</template>

<script>
  export default {
    name: 'InsertFieldDropdown',
    props: {
      labelTemplate: {
        type: Object,
        required: true
      }
    },
    data() {
      return {
        fields: {
          default: [],
          common: [],
          repositories: []
        },
        searchValue: ''
      }
    },
    computed: {
      tooltipTemplate() {
        return `<div class="tooltip" role="tooltip">
                  <div class="tooltip-arrow"></div>
                  <div class="tooltip-body">
                    <div class="tooltip-inner"></div>
                  </div>
                </div>`
      },
      filteredFields() {
        let result = {};
        if (this.searchValue.length == 0) {
          result = this.fields;
        } else {
          let filteredRepositories = this.filterArray(this.fields.repositories, 'repository_name');
          filteredRepositories = filteredRepositories.map((repo) => {
            repo.tags = this.filterArray(repo.tags, 'key');
            return repo;
          });

          result = {
            default: this.filterArray(this.fields.default, 'key'),
            common: this.filterArray(this.fields.common, 'key'),
            repositories: filteredRepositories,
          };
        }

        this.$nextTick(() => {
          $('.tooltip').remove();
          $('[data-toggle="tooltip"]').tooltip();
        });
        return result;
      },
      noResults() {
        return this.filteredFields.default.concat(this.filteredFields.common, this.filteredFields.repositories).length === 0;
      }
    },
    mounted() {
      $.get(this.labelTemplate.attributes.urls.fields, (result) => {
        this.fields = result;
        this.$nextTick(() => {
          $('[data-toggle="tooltip"]').tooltip();
        });
      });
      this.$nextTick(() => {
        $(this.$refs.dropdown).on('show.bs.dropdown', () => {
          this.searchValue = '';
        });
      });
    },
    methods: {
      filterArray(array, key) {
        return array.filter(field => field[key].toLowerCase().indexOf(this.searchValue.toLowerCase()) !== -1)
      }
    }
  }
</script>