///<amd-dependency path="app/plugins/datasource/influxdb/query_builder" name="InfluxQueryBuilder"/>

import {describe, beforeEach, it, sinon, expect} from 'test/lib/common';

declare var InfluxQueryBuilder: any;

describe('InfluxQueryBuilder', function() {

  describe('series with mesurement only', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      groupBy: [{type: 'time', interval: 'auto'}]
      });

      var query = builder.build();

      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE $timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with math expr and as expr', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      fields: [{name: 'test', func: 'max', mathExpr: '*2', asExpr: 'new_name'}],
      groupBy: [{type: 'time', interval: 'auto'}]
      });

      var query = builder.build();

      expect(query).to.be('SELECT max("test")*2 AS "new_name" FROM "cpu" WHERE $timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with single tag only', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      groupBy: [{type: 'time', interval: 'auto'}],
      tags: [{key: 'hostname', value: 'server1'}]
      });

      var query = builder.build();

      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE "hostname" = \'server1\' AND $timeFilter'
          + ' GROUP BY time($interval)');
    });

    it('should switch regex operator with tag value is regex', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      groupBy: [{type: 'time', interval: 'auto'}],
      tags: [{key: 'app', value: '/e.*/'}]
      });

      var query = builder.build();
      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE "app" =~ /e.*/ AND $timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with multiple fields', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      tags: [],
      groupBy: [{type: 'time', interval: 'auto'}],
      fields: [{ name: 'tx_in', func: 'sum' }, { name: 'tx_out', func: 'mean' }]
      });

      var query = builder.build();
      expect(query).to.be('SELECT sum("tx_in") AS "tx_in", mean("tx_out") AS "tx_out" ' +
          'FROM "cpu" WHERE $timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with multiple tags only', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      groupBy: [{type: 'time', interval: 'auto'}],
      tags: [{key: 'hostname', value: 'server1'}, {key: 'app', value: 'email', condition: "AND"}]
      });

      var query = builder.build();
      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE "hostname" = \'server1\' AND "app" = \'email\' AND ' +
          '$timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with tags OR condition', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      groupBy: [{type: 'time', interval: 'auto'}],
      tags: [{key: 'hostname', value: 'server1'}, {key: 'hostname', value: 'server2', condition: "OR"}]
      });

      var query = builder.build();
      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE "hostname" = \'server1\' OR "hostname" = \'server2\' AND ' +
          '$timeFilter GROUP BY time($interval)');
    });
  });

  describe('series with groupByTag', function() {
    it('should generate correct query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: 'cpu',
      tags: [],
      groupBy: [{type: 'time', interval: 'auto'}, {type: 'tag', key: 'host'}],
      });

      var query = builder.build();
      expect(query).to.be('SELECT mean("value") AS "value" FROM "cpu" WHERE $timeFilter ' +
          'GROUP BY time($interval), "host"');
    });
  });

  describe('when building explore queries', function() {

    it('should only have measurement condition in tag keys query given query with measurement', function() {
      var builder = new InfluxQueryBuilder({ measurement: 'cpu', tags: [] });
      var query = builder.buildExploreQuery('TAG_KEYS');
      expect(query).to.be('SHOW TAG KEYS FROM "cpu"');
    });

    it('should handle regex measurement in tag keys query', function() {
      var builder = new InfluxQueryBuilder({
      measurement: '/.*/',
      tags: []
      });
      var query = builder.buildExploreQuery('TAG_KEYS');
      expect(query).to.be('SHOW TAG KEYS FROM /.*/');
    });

    it('should have no conditions in tags keys query given query with no measurement or tag', function() {
      var builder = new InfluxQueryBuilder({ measurement: '', tags: [] });
      var query = builder.buildExploreQuery('TAG_KEYS');
      expect(query).to.be('SHOW TAG KEYS');
    });

    it('should have where condition in tag keys query with tags', function() {
      var builder = new InfluxQueryBuilder({ measurement: '', tags: [{key: 'host', value: 'se1'}] });
      var query = builder.buildExploreQuery('TAG_KEYS');
      expect(query).to.be("SHOW TAG KEYS WHERE \"host\" = 'se1'");
    });

    it('should have no conditions in measurement query for query with no tags', function() {
      var builder = new InfluxQueryBuilder({ measurement: '', tags: [] });
      var query = builder.buildExploreQuery('MEASUREMENTS');
      expect(query).to.be('SHOW MEASUREMENTS');
    });

    it('should have where condition in measurement query for query with tags', function() {
      var builder = new InfluxQueryBuilder({measurement: '', tags: [{key: 'app', value: 'email'}]});
      var query = builder.buildExploreQuery('MEASUREMENTS');
      expect(query).to.be("SHOW MEASUREMENTS WHERE \"app\" = 'email'");
    });

    it('should have where tag name IN filter in tag values query for query with one tag', function() {
      var builder = new InfluxQueryBuilder({measurement: '', tags: [{key: 'app', value: 'asdsadsad'}]});
      var query = builder.buildExploreQuery('TAG_VALUES', 'app');
      expect(query).to.be('SHOW TAG VALUES WITH KEY = "app"');
    });

    it('should have measurement tag condition and tag name IN filter in tag values query', function() {
      var builder = new InfluxQueryBuilder({measurement: 'cpu', tags: [{key: 'app', value: 'email'}, {key: 'host', value: 'server1'}]});
      var query = builder.buildExploreQuery('TAG_VALUES', 'app');
      expect(query).to.be('SHOW TAG VALUES FROM "cpu" WITH KEY = "app" WHERE "host" = \'server1\'');
    });

    it('should switch to regex operator in tag condition', function() {
      var builder = new InfluxQueryBuilder({measurement: 'cpu', tags: [{key: 'host', value: '/server.*/'}]});
      var query = builder.buildExploreQuery('TAG_VALUES', 'app');
      expect(query).to.be('SHOW TAG VALUES FROM "cpu" WITH KEY = "app" WHERE "host" =~ /server.*/');
    });

    it('should build show field query', function() {
      var builder = new InfluxQueryBuilder({measurement: 'cpu', tags: [{key: 'app', value: 'email'}]});
      var query = builder.buildExploreQuery('FIELDS');
      expect(query).to.be('SHOW FIELD KEYS FROM "cpu"');
    });

  });

});