Query history: Create API to add query to query history (#44479)

* Create config to enable/disable query history

* Create add to query history functionality

* Add documentation

* Add test

* Refactor

* Add test

* Fix built errors and linting errors

* Refactor

* Remove old tests

* Refactor, adjust based on feedback, add new test

* Update default value

pkg/services/queryhistory/queryhistory_test.go

@@ -0,0 +1,77 @@
+package queryhistory
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"io"
+	"net/http"
+	"testing"
+	"time"
+
+	"github.com/grafana/grafana/pkg/models"
+	"github.com/grafana/grafana/pkg/services/sqlstore"
+	"github.com/grafana/grafana/pkg/setting"
+	"github.com/grafana/grafana/pkg/web"
+	"github.com/stretchr/testify/require"
+)
+
+var (
+	testOrgID  = int64(1)
+	testUserID = int64(1)
+)
+
+type scenarioContext struct {
+	ctx        *web.Context
+	service    *QueryHistoryService
+	reqContext *models.ReqContext
+	sqlStore   *sqlstore.SQLStore
+}
+
+func testScenario(t *testing.T, desc string, fn func(t *testing.T, sc scenarioContext)) {
+	t.Helper()
+
+	t.Run(desc, func(t *testing.T) {
+		ctx := web.Context{Req: &http.Request{}}
+		sqlStore := sqlstore.InitTestDB(t)
+		service := QueryHistoryService{
+			Cfg:      setting.NewCfg(),
+			SQLStore: sqlStore,
+		}
+
+		service.Cfg.QueryHistoryEnabled = true
+
+		user := models.SignedInUser{
+			UserId:     testUserID,
+			Name:       "Signed In User",
+			Login:      "signed_in_user",
+			Email:      "signed.in.user@test.com",
+			OrgId:      testOrgID,
+			OrgRole:    models.ROLE_VIEWER,
+			LastSeenAt: time.Now(),
+		}
+
+		_, err := sqlStore.CreateUser(context.Background(), models.CreateUserCommand{
+			Email: "signed.in.user@test.com",
+			Name:  "Signed In User",
+			Login: "signed_in_user",
+		})
+		require.NoError(t, err)
+
+		sc := scenarioContext{
+			ctx:      &ctx,
+			service:  &service,
+			sqlStore: sqlStore,
+			reqContext: &models.ReqContext{
+				Context:      &ctx,
+				SignedInUser: &user,
+			},
+		}
+		fn(t, sc)
+	})
+}
+
+func mockRequestBody(v interface{}) io.ReadCloser {
+	b, _ := json.Marshal(v)
+	return io.NopCloser(bytes.NewReader(b))
+}