<script>
  import { mapGetters, mapActions } from 'vuex';
  import { escape } from 'underscore';
  import Flash from '../../flash';
  import userAvatarLink from '../../vue_shared/components/user_avatar/user_avatar_link.vue';
  import noteHeader from './note_header.vue';
  import noteActions from './note_actions.vue';
  import noteBody from './note_body.vue';
  import eventHub from '../event_hub';

  export default {
    components: {
      userAvatarLink,
      noteHeader,
      noteActions,
      noteBody,
    },
    props: {
      note: {
        type: Object,
        required: true,
      },
    },
    data() {
      return {
        isEditing: false,
        isDeleting: false,
        isRequesting: false,
      };
    },
    computed: {
      ...mapGetters([
        'targetNoteHash',
        'getUserData',
      ]),
      author() {
        return this.note.author;
      },
      classNameBindings() {
        return {
          'is-editing': this.isEditing && !this.isRequesting,
          'is-requesting being-posted': this.isRequesting,
          'disabled-content': this.isDeleting,
          target: this.targetNoteHash === this.noteAnchorId,
        };
      },
      canReportAsAbuse() {
        return this.note.report_abuse_path && this.author.id !== this.getUserData.id;
      },
      noteAnchorId() {
        return `note_${this.note.id}`;
      },
    },

    created() {
      eventHub.$on('enterEditMode', ({ noteId }) => {
        if (noteId === this.note.id) {
          this.isEditing = true;
          this.scrollToNoteIfNeeded($(this.$el));
        }
      });
    },

    methods: {
      ...mapActions([
        'deleteNote',
        'updateNote',
        'scrollToNoteIfNeeded',
      ]),
      editHandler() {
        this.isEditing = true;
      },
      deleteHandler() {
        // eslint-disable-next-line no-alert
        if (confirm('Are you sure you want to delete this comment?')) {
          this.isDeleting = true;

          this.deleteNote(this.note)
            .then(() => {
              this.isDeleting = false;
            })
            .catch(() => {
              Flash('Something went wrong while deleting your note. Please try again.');
              this.isDeleting = false;
            });
        }
      },
      formUpdateHandler(noteText, parentElement, callback) {
        const data = {
          endpoint: this.note.path,
          note: {
            target_type: 'issue',
            target_id: this.note.noteable_id,
            note: { note: noteText },
          },
        };
        this.isRequesting = true;
        this.oldContent = this.note.note_html;
        this.note.note_html = escape(noteText);

        this.updateNote(data)
          .then(() => {
            this.isEditing = false;
            this.isRequesting = false;
            $(this.$refs.noteBody.$el).renderGFM();
            this.$refs.noteBody.resetAutoSave();
            callback();
          })
          .catch(() => {
            this.isRequesting = false;
            this.isEditing = true;
            this.$nextTick(() => {
              const msg = 'Something went wrong while editing your comment. Please try again.';
              Flash(msg, 'alert', this.$el);
              this.recoverNoteContent(noteText);
              callback();
            });
          });
      },
      formCancelHandler(shouldConfirm, isDirty) {
        if (shouldConfirm && isDirty) {
          // eslint-disable-next-line no-alert
          if (!confirm('Are you sure you want to cancel editing this comment?')) return;
        }
        this.$refs.noteBody.resetAutoSave();
        if (this.oldContent) {
          this.note.note_html = this.oldContent;
          this.oldContent = null;
        }
        this.isEditing = false;
      },
      recoverNoteContent(noteText) {
        // we need to do this to prevent noteForm inconsistent content warning
        // this is something we intentionally do so we need to recover the content
        this.note.note = noteText;
        this.$refs.noteBody.$refs.noteForm.note = noteText;
      },
    },
  };
</script>

<template>
  <li
    class="note timeline-entry"
    :id="noteAnchorId"
    :class="classNameBindings"
    :data-award-url="note.toggle_award_path">
    <div class="timeline-entry-inner">
      <div class="timeline-icon">
        <user-avatar-link
          :link-href="author.path"
          :img-src="author.avatar_url"
          :img-alt="author.name"
          :img-size="40"
        />
      </div>
      <div class="timeline-content">
        <div class="note-header">
          <note-header
            :author="author"
            :created-at="note.created_at"
            :note-id="note.id"
            action-text="commented"
          />
          <note-actions
            :author-id="author.id"
            :note-id="note.id"
            :access-level="note.human_access"
            :can-edit="note.current_user.can_edit"
            :can-delete="note.current_user.can_edit"
            :can-report-as-abuse="canReportAsAbuse"
            :report-abuse-path="note.report_abuse_path"
            @handleEdit="editHandler"
            @handleDelete="deleteHandler"
          />
        </div>
        <note-body
          :note="note"
          :can-edit="note.current_user.can_edit"
          :is-editing="isEditing"
          @handleFormUpdate="formUpdateHandler"
          @cancelFormEdition="formCancelHandler"
          ref="noteBody"
        />
      </div>
    </div>
  </li>
</template>
