define([
  'app/plugins/datasource/elasticsearch/queryBuilder'
], function(ElasticQueryBuilder) {
  'use strict';

  describe('ElasticQueryBuilder', function() {
    var builder;

    beforeEach(function() {
      builder = new ElasticQueryBuilder({timeField: '@timestamp'});
    });

    it('with defaults', function() {
      var query = builder.build({
        metrics: [{type: 'Count', id: '0'}],
        timeField: '@timestamp',
        bucketAggs: [{type: 'date_histogram', field: '@timestamp', id: '1'}],
      });

      expect(query.query.filtered.filter.bool.must[0].range["@timestamp"].gte).to.be("$timeFrom");
      expect(query.aggs["1"].date_histogram.extended_bounds.min).to.be("$timeFrom");
    });

    it('with raw query', function() {
      var query = builder.build({
        rawQuery: '{"query": "$lucene_query"}',
      });

      expect(query.query).to.be("$lucene_query");
    });

    it('with multiple bucket aggs', function() {
      var query = builder.build({
        metrics: [{type: 'count', id: '1'}],
        timeField: '@timestamp',
        bucketAggs: [
          {type: 'terms', field: '@host', id: '2'},
          {type: 'date_histogram', field: '@timestamp', id: '3'}
        ],
      });

      expect(query.aggs["2"].terms.field).to.be("@host");
      expect(query.aggs["2"].aggs["3"].date_histogram.field).to.be("@timestamp");
    });

    it('with select field', function() {
      var query = builder.build({
        metrics: [{type: 'avg', field: '@value', id: '1'}],
        bucketAggs: [{type: 'date_histogram', field: '@timestamp', id: '2'}],
      }, 100, 1000);

      var aggs = query.aggs["2"].aggs;
      expect(aggs["1"].avg.field).to.be("@value");
    });

    it('with term agg and order by metric agg', function() {
      var query = builder.build({
        metrics: [
          {type: 'count', id: '1'},
          {type: 'avg', field: '@value', id: '5'}
        ],
        bucketAggs: [
          {type: 'terms', field: '@host', settings: {size: 5, order: 'asc', orderBy: '5'}, id: '2' },
          {type: 'date_histogram', field: '@timestamp', id: '3'}
        ],
      }, 100, 1000);

      var firstLevel = query.aggs["2"];
      var secondLevel = firstLevel.aggs["3"];

      expect(firstLevel.aggs["5"].avg.field).to.be("@value");
      expect(secondLevel.aggs["5"].avg.field).to.be("@value");
    });

    it('with metric percentiles', function() {
      var query = builder.build({
        metrics: [
          {
            id: '1',
            type: 'percentiles',
            field: '@load_time',
            settings: {
              percents: [1,2,3,4]
            }
          }
        ],
        bucketAggs: [
          {type: 'date_histogram', field: '@timestamp', id: '3'}
        ],
      }, 100, 1000);

      var firstLevel = query.aggs["3"];

      expect(firstLevel.aggs["1"].percentiles.field).to.be("@load_time");
      expect(firstLevel.aggs["1"].percentiles.percents).to.eql([1,2,3,4]);
    });

    it('with filters aggs', function() {
      var query = builder.build({
        metrics: [{type: 'count', id: '1'}],
        timeField: '@timestamp',
        bucketAggs: [
          {
            id: '2',
            type: 'filters',
            settings: {
              filters: [
                {query: '@metric:cpu' },
                {query: '@metric:logins.count' },
              ]
            }
          },
          {type: 'date_histogram', field: '@timestamp', id: '4'}
        ],
      });

      expect(query.aggs["2"].filters.filters["@metric:cpu"].query.query_string.query).to.be("@metric:cpu");
      expect(query.aggs["2"].filters.filters["@metric:logins.count"].query.query_string.query).to.be("@metric:logins.count");
      expect(query.aggs["2"].aggs["4"].date_histogram.field).to.be("@timestamp");
    });

  });

});