import { describe, it, expect } from "test/lib/common";
import { InfluxQueryBuilder } from "../query_builder";

describe("InfluxQueryBuilder", function() {
  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).toBe('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).toBe("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).toBe("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).toBe("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).toBe("SHOW MEASUREMENTS LIMIT 100");
    });

    it("should have no conditions in measurement query for query with no tags and empty query", function() {
      var builder = new InfluxQueryBuilder({ measurement: "", tags: [] });
      var query = builder.buildExploreQuery("MEASUREMENTS", undefined, "");
      expect(query).toBe("SHOW MEASUREMENTS LIMIT 100");
    });

    it("should have WITH MEASUREMENT in measurement query for non-empty query with no tags", function() {
      var builder = new InfluxQueryBuilder({ measurement: "", tags: [] });
      var query = builder.buildExploreQuery(
        "MEASUREMENTS",
        undefined,
        "something"
      );
      expect(query).toBe(
        "SHOW MEASUREMENTS WITH MEASUREMENT =~ /something/ LIMIT 100"
      );
    });

    it("should have WITH MEASUREMENT WHERE in measurement query for non-empty query with tags", function() {
      var builder = new InfluxQueryBuilder({
        measurement: "",
        tags: [{ key: "app", value: "email" }]
      });
      var query = builder.buildExploreQuery(
        "MEASUREMENTS",
        undefined,
        "something"
      );
      expect(query).toBe(
        "SHOW MEASUREMENTS WITH MEASUREMENT =~ /something/ WHERE \"app\" = 'email' LIMIT 100"
      );
    });

    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).toBe("SHOW MEASUREMENTS WHERE \"app\" = 'email' LIMIT 100");
    });

    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).toBe('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).toBe(
        'SHOW TAG VALUES FROM "cpu" WITH KEY = "app" WHERE "host" = \'server1\''
      );
    });

    it("should select from policy correctly if policy is specified", function() {
      var builder = new InfluxQueryBuilder({
        measurement: "cpu",
        policy: "one_week",
        tags: [
          { key: "app", value: "email" },
          { key: "host", value: "server1" }
        ]
      });
      var query = builder.buildExploreQuery("TAG_VALUES", "app");
      expect(query).toBe(
        'SHOW TAG VALUES FROM "one_week"."cpu" WITH KEY = "app" WHERE "host" = \'server1\''
      );
    });

    it("should not includ policy when policy is default", function() {
      var builder = new InfluxQueryBuilder({
        measurement: "cpu",
        policy: "default",
        tags: []
      });
      var query = builder.buildExploreQuery("TAG_VALUES", "app");
      expect(query).toBe('SHOW TAG VALUES FROM "cpu" WITH KEY = "app"');
    });

    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).toBe(
        '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).toBe('SHOW FIELD KEYS FROM "cpu"');
    });

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

    it("should build show retention policies query", function() {
      var builder = new InfluxQueryBuilder(
        { measurement: "cpu", tags: [] },
        "site"
      );
      var query = builder.buildExploreQuery("RETENTION POLICIES");
      expect(query).toBe('SHOW RETENTION POLICIES on "site"');
    });
  });
});