fixed twitch authentication

server/twitch/auth.go

@@ -36,7 +36,7 @@ func NewAuthenticationManager(clientId, clientSecret string) *AuthenticationMana
 }
 
 func (a *AuthenticationManager) GetAccessToken() (*AccessToken, error) {
-	if a.accesToken != nil && a.accesToken.Expiry.After(time.Now()) {
+	if a.accesToken != nil && a.accesToken.Token != "" && a.accesToken.Expiry.After(time.Now()) {
 		return a.accesToken, nil
 	}
 

server/twitch/client.go

@@ -70,6 +70,11 @@ func (c *Client) PollStream(channel string, liveChannel chan<- *StreamInfo) erro
 		return err
 	}
 
+	if len(sr.Data) == 0 {
+		liveChannel <- &StreamInfo{UserName: channel, IsLive: false}
+		return nil
+	}
+
 	s := sr.Data[0]
 	started, _ := time.Parse(time.RFC3339, s.StartedAt)
 

server/twitch/rest.go

@@ -3,6 +3,7 @@ package twitch
 import (
 	"encoding/json"
 	"net/http"
+	"slices"
 )
 
 type addUserReq struct {
@@ -26,3 +27,14 @@ func MonitorUserHandler(m *Monitor) http.HandlerFunc {
 		}
 	}
 }
+
+func GetMonitoredUsers(m *Monitor) http.HandlerFunc {
+	return func(w http.ResponseWriter, r *http.Request) {
+		it := m.GetMonitoredUsers()
+
+		if err := json.NewEncoder(w).Encode(slices.Collect(it)); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+	}
+}