import angular from 'angular';
import _ from 'lodash';
import $ from 'jquery';
import coreModule from 'app/core/core_module';
import { DashboardModel } from 'app/features/dashboard/state';
import DatasourceSrv from '../plugins/datasource_srv';
import appEvents from 'app/core/app_events';
import { AnnotationQuery, AppEvents } from '@grafana/data';

// Registeres the angular directive
import './components/StandardAnnotationQueryEditor';

export class AnnotationsEditorCtrl {
  mode: any;
  datasources: any;
  currentAnnotation: any;
  currentDatasource: any;
  currentIsNew: any;
  dashboard: DashboardModel;

  annotationDefaults: any = {
    name: '',
    datasource: null,
    iconColor: 'rgba(255, 96, 96, 1)',
    enable: true,
    showIn: 0,
    hide: false,
  };

  emptyListCta = {
    title: 'There are no custom annotation queries added yet',
    buttonIcon: 'comment-alt',
    buttonTitle: 'Add Annotation Query',
    infoBox: {
      __html: `<p>Annotations provide a way to integrate event data into your graphs. They are visualized as vertical lines
    and icons on all graph panels. When you hover over an annotation icon you can get event text &amp; tags for
    the event. You can add annotation events directly from grafana by holding CTRL or CMD + click on graph (or
    drag region). These will be stored in Grafana's annotation database.
  </p>
  Checkout the
  <a class='external-link' target='_blank' href='http://docs.grafana.org/reference/annotations/'
    >Annotations documentation</a
  >
  for more information.`,
    },
    infoBoxTitle: 'What are annotations?',
  };

  showOptions: any = [
    { text: 'All Panels', value: 0 },
    { text: 'Specific Panels', value: 1 },
  ];

  /** @ngInject */
  constructor(private $scope: any, private datasourceSrv: DatasourceSrv) {
    $scope.ctrl = this;

    this.dashboard = $scope.dashboard;
    this.mode = 'list';
    this.datasources = datasourceSrv.getAnnotationSources();
    this.dashboard.annotations.list = this.dashboard.annotations.list ?? [];
    this.reset();

    this.onColorChange = this.onColorChange.bind(this);
  }

  async datasourceChanged() {
    const newDatasource = await this.datasourceSrv.get(this.currentAnnotation.datasource);
    this.$scope.$apply(() => {
      this.currentDatasource = newDatasource;
    });
  }

  /**
   * Called from the react editor
   */
  onAnnotationChange = (annotation: AnnotationQuery) => {
    let replaced = false;

    this.dashboard.annotations.list = this.dashboard.annotations.list.map((a) => {
      if (a.name !== annotation.name) {
        return a;
      }
      replaced = true;
      return annotation;
    });

    if (!replaced) {
      console.warn('updating annotatoin, but not in the dashboard', annotation);
    }

    this.currentAnnotation = annotation;
  };

  edit(annotation: AnnotationQuery) {
    this.currentAnnotation = annotation;
    this.currentAnnotation.showIn = this.currentAnnotation.showIn || 0;
    this.currentIsNew = false;
    this.datasourceChanged();
    this.mode = 'edit';
    $('.tooltip.in').remove();
  }

  reset() {
    this.currentAnnotation = angular.copy(this.annotationDefaults);
    this.currentAnnotation.datasource = this.datasources[0].name;
    this.currentIsNew = true;
    this.datasourceChanged();
  }

  update() {
    this.dashboard.annotations.list = [...this.dashboard.annotations.list];
    this.reset();
    this.mode = 'list';
  }

  setupNew = () => {
    this.mode = 'new';
    this.reset();
  };

  backToList() {
    this.mode = 'list';
  }

  move(index: number, dir: number) {
    const list = [...this.dashboard.annotations.list];
    Array.prototype.splice.call(list, index + dir, 0, Array.prototype.splice.call(list, index, 1)[0]);
    this.dashboard.annotations.list = list;
  }

  add() {
    const sameName: any = _.find(this.dashboard.annotations.list, { name: this.currentAnnotation.name });
    if (sameName) {
      appEvents.emit(AppEvents.alertWarning, ['Validation', 'Annotations with the same name already exists']);
      return;
    }
    this.dashboard.annotations.list = [...this.dashboard.annotations.list, this.currentAnnotation];
    this.reset();
    this.mode = 'list';
    this.dashboard.updateSubmenuVisibility();
  }

  removeAnnotation(annotation: AnnotationQuery) {
    this.dashboard.annotations.list = this.dashboard.annotations.list.filter((a) => {
      return a.name !== annotation.name;
    });
    this.dashboard.updateSubmenuVisibility();
  }

  onColorChange(newColor: string) {
    this.currentAnnotation.iconColor = newColor;
  }
}

coreModule.controller('AnnotationsEditorCtrl', AnnotationsEditorCtrl);