<template>
  <div class="content__checklist-item pl-10 ml-[-2.325rem] group/checklist-item-header">
    <div class="checklist-item-header flex rounded items-center relative w-full" :class="{ 'locked': locked || editingText, 'editing-name': editingText }">
      <div v-if="reorderChecklistItemUrl"
        class="absolute h-6 cursor-grab justify-center left-[-2.325rem] top-0.5 px-2 tw-hidden text-sn-grey element-grip step-element-grip--draggable"
        :class="{ 'group-hover/checklist-item-header:flex': (!locked && !editingText && draggable) }"
      >
        <i class="sn-icon sn-icon-drag"></i>
      </div>
      <div class="flex items-start gap-2 grow" :class="{ 'done': checklistItem.attributes.checked }">
        <div v-if="!inRepository" class="sci-checkbox-container my-1.5 border-0 border-y border-transparent border-solid"
             :class="{ 'disabled': !toggleUrl }"  :style="toggleUrl && 'pointer-events: initial'">
          <input ref="checkbox"
                 type="checkbox"
                 class="sci-checkbox"
                 :disabled="checklistItem.attributes.isNew"
                 :checked="checklistItem.attributes.checked" @change="toggleChecked($event)" />
          <span class="sci-checkbox-label" >
          </span>
        </div>
        <div v-else class="h-1 w-1 bg-sn-black rounded-full mt-3"></div>
        <div class="pr-24 relative flex items-start max-w-[90ch]"
             :class="{
              'pointer-events-none': !checklistItem.attributes.isNew && !updateUrl,
              'flex-grow': editingText,
             }">
          <InlineEdit
            :class="{ 'pointer-events-none': reordering }"
            :value="checklistItem.attributes.text"
            :sa_value="checklistItem.attributes.sa_text"
            :characterLimit="10000"
            :placeholder="'Add a checklist item...'"
            :allowBlank="true"
            :singleLine="false"
            :autofocus="editingText"
            :attributeName="`${i18n.t('ChecklistItem')} ${i18n.t('name')}`"
            :editOnload="checklistItem.attributes.isNew"
            :smartAnnotation="true"
            :allowNewLine="true"
            @editingEnabled="enableTextEdit"
            @editingDisabled="disableTextEdit"
            @update="updateText"
            @delete="removeItem()"
            @keypress="keyPressHandler"
            @blur="onBlurHandler"
          />
          <span v-if="!editingText && (!checklistItem.attributes.urls || deleteUrl)"
                class="absolute right-0 top-0.5 leading-6 tw-hidden group-hover/checklist-item-header:inline-block !text-sn-blue cursor-pointer"
                @click="showDeleteModal" tabindex="0">
            <i class="sn-icon sn-icon-delete"></i>
          </span>
        </div>
      </div>
    </div>
    <deleteElementModal v-if="confirmingDelete" @confirm="deleteElement" @cancel="closeDeleteModal"/>
  </div>
</template>

<script>
import DeleteMixin from './mixins/delete.js';
import InlineEdit from '../inline_edit.vue';
import deleteElementModal from './modal/delete.vue';

export default {
  name: 'ChecklistItem',
  components: { InlineEdit, deleteElementModal },
  mixins: [DeleteMixin],
  props: {
    checklistItem: {
      type: Object,
      required: true
    },
    locked: {
      type: Boolean,
      default: false
    },
    draggable: {
      type: Boolean,
      default: false
    },
    inRepository: {
      type: Boolean,
      required: true
    },
    reorderChecklistItemUrl: {
      type: String
    },
    reordering: {
      type: Boolean,
      required: true
    }
  },
  data() {
    return {
      editingText: false,
      deleting: false
    };
  },
  computed: {
    element() { // remap and alias to work with delete mixin
      return ({
        attributes: {
          orderable: this.checklistItem.attributes,
          position: this.checklistItem.attributes.position
        }
      });
    },
    updateUrl() {
      if (!this.checklistItem.attributes.urls) return;

      return this.checklistItem.attributes.urls.update_url;
    },
    toggleUrl() {
      if (!this.checklistItem.attributes.urls) return;

      return this.checklistItem.attributes.urls.toggle_url;
    },
    deleteUrl() {
      if (!this.checklistItem.attributes.urls) return;

      return this.checklistItem.attributes.urls.delete_url;
    }
  },
  methods: {
    enableTextEdit() {
      this.editingText = true;
      this.$emit('editStart');
    },
    disableTextEdit() {
      if (this.checklistItem.attributes.isNew) {
        if (this.deleting) return;
        if (this.checklistItem.attributes.text.length === 0) this.removeItem();
        this.$emit('editEnd');
      }
    },
    toggleChecked(e) {
      if (!this.toggleUrl) return;
      this.checklistItem.attributes.checked = this.$refs.checkbox.checked;
      this.$emit('toggle', this.checklistItem);
    },
    onBlurHandler() {
      this.$nextTick(() => {
        this.editingText = false;
      });
    },
    updateText(text, withKey) {
      if (text.length === 0) {
        this.disableTextEdit();
      } else {
        this.checklistItem.attributes.text = text;
        this.update(withKey);
      }
    },
    removeItem() {
      this.deleting = true;
      if (this.deleteUrl) {
        this.deleteElement();
      } else {
        this.$emit('removeItem', this.checklistItem.attributes.position);
      }
    },
    update(withKey) {
      this.$emit('update', this.checklistItem, withKey);
    },
    keyPressHandler(e) {
      if ((e.shiftKey || e.metaKey) && e.key === 'Enter') {
        this.checklistItem.attributes.with_paragraphs = true;
      }
    }
  }
};
</script>
