Extract search users functions into a service (#39002)

* Extract search users to a new service

* Fix wire provider

* Fix common_test and remove RouteRegister

* Remove old endpoints

* Fix test

* Add indexes to dashboards and orgs tables

* Fix lint

pkg/services/searchusers/searchusers.go

@@ -0,0 +1,95 @@
+package searchusers
+
+import (
+	"github.com/grafana/grafana/pkg/api/dtos"
+	"github.com/grafana/grafana/pkg/api/response"
+	"github.com/grafana/grafana/pkg/bus"
+	"github.com/grafana/grafana/pkg/models"
+)
+
+type Service interface {
+	SearchUsers(c *models.ReqContext) response.Response
+	SearchUsersWithPaging(c *models.ReqContext) response.Response
+}
+
+type OSSService struct {
+	bus bus.Bus
+}
+
+func ProvideUsersService(bus bus.Bus) *OSSService {
+	return &OSSService{bus: bus}
+}
+
+func (s *OSSService) SearchUsers(c *models.ReqContext) response.Response {
+	query, err := s.SearchUser(c)
+	if err != nil {
+		return response.Error(500, "Failed to fetch users", err)
+	}
+
+	return response.JSON(200, query.Result.Users)
+}
+
+func (s *OSSService) SearchUsersWithPaging(c *models.ReqContext) response.Response {
+	query, err := s.SearchUser(c)
+	if err != nil {
+		return response.Error(500, "Failed to fetch users", err)
+	}
+
+	return response.JSON(200, query.Result)
+}
+
+func (s *OSSService) SearchUser(c *models.ReqContext) (*models.SearchUsersQuery, error) {
+	perPage := c.QueryInt("perpage")
+	if perPage <= 0 {
+		perPage = 1000
+	}
+	page := c.QueryInt("page")
+
+	if page < 1 {
+		page = 1
+	}
+
+	searchQuery := c.Query("query")
+	filter := c.Query("filter")
+
+	query := &models.SearchUsersQuery{Query: searchQuery, Filter: models.SearchUsersFilter(filter), Page: page, Limit: perPage}
+	if err := s.bus.Dispatch(query); err != nil {
+		return nil, err
+	}
+
+	for _, user := range query.Result.Users {
+		user.AvatarUrl = dtos.GetGravatarUrl(user.Email)
+		user.AuthLabels = make([]string, 0)
+		if user.AuthModule != nil && len(user.AuthModule) > 0 {
+			for _, authModule := range user.AuthModule {
+				user.AuthLabels = append(user.AuthLabels, GetAuthProviderLabel(authModule))
+			}
+		}
+	}
+
+	query.Result.Page = page
+	query.Result.PerPage = perPage
+
+	return query, nil
+}
+
+func GetAuthProviderLabel(authModule string) string {
+	switch authModule {
+	case "oauth_github":
+		return "GitHub"
+	case "oauth_google":
+		return "Google"
+	case "oauth_azuread":
+		return "AzureAD"
+	case "oauth_gitlab":
+		return "GitLab"
+	case "oauth_grafana_com", "oauth_grafananet":
+		return "grafana.com"
+	case "auth.saml":
+		return "SAML"
+	case "ldap", "":
+		return "LDAP"
+	default:
+		return "OAuth"
+	}
+}