import '../query_ctrl';
import 'app/core/services/segment_srv';
import {describe, beforeEach, it, sinon, expect, angularMocks} from 'test/lib/common';
import helpers from 'test/specs/helpers';
import {InfluxQueryCtrl} from '../query_ctrl';

describe('InfluxDBQueryCtrl', function() {
  var ctx = new helpers.ControllerTestContext();

  beforeEach(angularMocks.module('grafana.core'));
  beforeEach(angularMocks.module('grafana.controllers'));
  beforeEach(angularMocks.module('grafana.services'));
  beforeEach(ctx.providePhase());

  beforeEach(angularMocks.inject(($rootScope, $controller, $q) => {
    ctx.$q = $q;
    ctx.scope = $rootScope.$new();
    ctx.datasource.metricFindQuery = sinon.stub().returns(ctx.$q.when([]));
    ctx.panelCtrl = {panel: {}};
    ctx.panelCtrl.refresh = sinon.spy();
    ctx.target = {target: {}};
    ctx.ctrl = $controller(InfluxQueryCtrl, {$scope: ctx.scope}, {
      panelCtrl: ctx.panelCtrl,
      target: ctx.target,
      datasource: ctx.datasource
    });
  }));

  describe('init', function() {
    it('should init tagSegments', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(1);
    });

    it('should init measurementSegment', function() {
      expect(ctx.ctrl.measurementSegment.value).to.be('select measurement');
    });
  });

  describe('when first tag segment is updated', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button'}, 0);
    });

    it('should update tag key', function() {
      expect(ctx.ctrl.target.tags[0].key).to.be('asd');
      expect(ctx.ctrl.tagSegments[0].type).to.be('key');
    });

    it('should add tagSegments', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(3);
    });
  });

  describe('when last tag value segment is updated', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button'}, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
    });

    it('should update tag value', function() {
      expect(ctx.ctrl.target.tags[0].value).to.be('server1');
    });

    it('should set tag operator', function() {
      expect(ctx.ctrl.target.tags[0].operator).to.be('=');
    });

    it('should add plus button for another filter', function() {
      expect(ctx.ctrl.tagSegments[3].fake).to.be(true);
    });
  });

  describe('when last tag value segment is updated to regex', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button'}, 0);
      ctx.ctrl.tagSegmentUpdated({value: '/server.*/', type: 'value'}, 2);
    });

    it('should update operator', function() {
      expect(ctx.ctrl.tagSegments[1].value).to.be('=~');
      expect(ctx.ctrl.target.tags[0].operator).to.be('=~');
    });
  });

  describe('when second tag key is added', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated({value: 'key2', type: 'plus-button'}, 3);
    });

    it('should update tag key', function() {
      expect(ctx.ctrl.target.tags[1].key).to.be('key2');
    });

    it('should add AND segment', function() {
      expect(ctx.ctrl.tagSegments[3].value).to.be('AND');
    });
  });

  describe('when condition is changed', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated({value: 'key2', type: 'plus-button'}, 3);
      ctx.ctrl.tagSegmentUpdated({value: 'OR', type: 'condition'}, 3);
    });

    it('should update tag condition', function() {
      expect(ctx.ctrl.target.tags[1].condition).to.be('OR');
    });

    it('should update AND segment', function() {
      expect(ctx.ctrl.tagSegments[3].value).to.be('OR');
      expect(ctx.ctrl.tagSegments.length).to.be(7);
    });
  });

  describe('when deleting first tag filter after value is selected', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 0);
    });

    it('should remove tags', function() {
      expect(ctx.ctrl.target.tags.length).to.be(0);
    });

    it('should remove all segment after 2 and replace with plus button', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(1);
      expect(ctx.ctrl.tagSegments[0].type).to.be('plus-button');
    });
  });

  describe('when deleting second tag value before second tag value is complete', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated({value: 'key2', type: 'plus-button'}, 3);
      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
    });

    it('should remove all segment after 2 and replace with plus button', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(4);
      expect(ctx.ctrl.tagSegments[3].type).to.be('plus-button');
    });
  });

  describe('when deleting second tag value before second tag value is complete', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated({value: 'key2', type: 'plus-button'}, 3);
      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
    });

    it('should remove all segment after 2 and replace with plus button', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(4);
      expect(ctx.ctrl.tagSegments[3].type).to.be('plus-button');
    });
  });

  describe('when deleting second tag value after second tag filter is complete', function() {
    beforeEach(function() {
      ctx.ctrl.tagSegmentUpdated({value: 'asd', type: 'plus-button' }, 0);
      ctx.ctrl.tagSegmentUpdated({value: 'server1', type: 'value'}, 2);
      ctx.ctrl.tagSegmentUpdated({value: 'key2', type: 'plus-button'}, 3);
      ctx.ctrl.tagSegmentUpdated({value: 'value', type: 'value'}, 6);
      ctx.ctrl.tagSegmentUpdated(ctx.ctrl.removeTagFilterSegment, 4);
    });

    it('should remove all segment after 2 and replace with plus button', function() {
      expect(ctx.ctrl.tagSegments.length).to.be(4);
      expect(ctx.ctrl.tagSegments[3].type).to.be('plus-button');
    });
  });
});
