import { OpenTsQueryCtrl } from '../query_ctrl';

describe('OpenTsQueryCtrl', () => {
  const ctx = {
    target: { target: '' },
    datasource: {
      tsdbVersion: '',
      getAggregators: () => Promise.resolve([]),
      getFilterTypes: () => Promise.resolve([]),
    },
  } as any;

  ctx.panelCtrl = {
    panel: {
      targets: [ctx.target],
    },
    refresh: () => {},
  };

  Object.assign(OpenTsQueryCtrl.prototype, ctx);

  beforeEach(() => {
    ctx.ctrl = new OpenTsQueryCtrl({}, {} as any);
  });

  describe('init query_ctrl variables', () => {
    it('filter types should be initialized', () => {
      expect(ctx.ctrl.filterTypes.length).toBe(7);
    });

    it('aggregators should be initialized', () => {
      expect(ctx.ctrl.aggregators.length).toBe(8);
    });

    it('fill policy options should be initialized', () => {
      expect(ctx.ctrl.fillPolicies.length).toBe(4);
    });
  });

  describe('when adding filters and tags', () => {
    it('addTagMode should be false when closed', () => {
      ctx.ctrl.addTagMode = true;
      ctx.ctrl.closeAddTagMode();
      expect(ctx.ctrl.addTagMode).toBe(false);
    });

    it('addFilterMode should be false when closed', () => {
      ctx.ctrl.addFilterMode = true;
      ctx.ctrl.closeAddFilterMode();
      expect(ctx.ctrl.addFilterMode).toBe(false);
    });

    it('removing a tag from the tags list', () => {
      ctx.ctrl.target.tags = { tagk: 'tag_key', tagk2: 'tag_value2' };
      ctx.ctrl.removeTag('tagk');
      expect(Object.keys(ctx.ctrl.target.tags).length).toBe(1);
    });

    it('removing a filter from the filters list', () => {
      ctx.ctrl.target.filters = [
        {
          tagk: 'tag_key',
          filter: 'tag_value2',
          type: 'wildcard',
          groupBy: true,
        },
      ];
      ctx.ctrl.removeFilter(0);
      expect(ctx.ctrl.target.filters.length).toBe(0);
    });

    it('adding a filter when tags exist should generate error', () => {
      ctx.ctrl.target.tags = { tagk: 'tag_key', tagk2: 'tag_value2' };
      ctx.ctrl.addFilter();
      expect(ctx.ctrl.errors.filters).toBe(
        'Please remove tags to use filters, tags and filters are mutually exclusive.'
      );
    });

    it('adding a tag when filters exist should generate error', () => {
      ctx.ctrl.target.filters = [
        {
          tagk: 'tag_key',
          filter: 'tag_value2',
          type: 'wildcard',
          groupBy: true,
        },
      ];
      ctx.ctrl.addTag();
      expect(ctx.ctrl.errors.tags).toBe('Please remove filters to use tags, tags and filters are mutually exclusive.');
    });
  });
});
