PLT-3921 Fix System Console Recent Active Users (#3856)

* PLT-3921 System Console Recent Active Users

model/client.go

@@ -820,6 +820,17 @@ func (c *Client) GetClusterStatus() ([]*ClusterInfo, *AppError) {
 	}
 }
 
+// GetRecentlyActiveUsers returns a map of users including lastActivityAt using user id as the key
+func (c *Client) GetRecentlyActiveUsers(teamId string) (*Result, *AppError) {
+	if r, err := c.DoApiGet("/admin/recently_active_users/"+teamId, "", ""); err != nil {
+		return nil, err
+	} else {
+		defer closeBody(r)
+		return &Result{r.Header.Get(HEADER_REQUEST_ID),
+			r.Header.Get(HEADER_ETAG_SERVER), UserMapFromJson(r.Body)}, nil
+	}
+}
+
 func (c *Client) GetAllAudits() (*Result, *AppError) {
 	if r, err := c.DoApiGet("/admin/audits", "", ""); err != nil {
 		return nil, err

model/user.go

@@ -48,6 +48,7 @@ type User struct {
 	Locale             string    `json:"locale"`
 	MfaActive          bool      `json:"mfa_active,omitempty"`
 	MfaSecret          string    `json:"mfa_secret,omitempty"`
+	LastActivityAt     int64     `db:"-" json:"last_activity_at,omitempty"`
 }
 
 // IsValid validates the user and returns an error if it isn't configured