fix: fixing panic on pong write message

internal/hub.go

@@ -1,7 +1,6 @@
 package internal
 
 import (
-	"fmt"
 	"log"
 	"time"
 
@@ -125,7 +124,7 @@ func ReadPump(c *Client, h *Hub) {
 		}
 
 		if messageType == websocket.TextMessage {
-			fmt.Printf("Received: %s\n", message)
+			log.Printf("Received: %s\n", message)
 		}
 	}
 }

v1/client/client.go

@@ -3,7 +3,6 @@ package client
 import (
 	"context"
 	"fmt"
-	"io"
 	"log"
 	"net/url"
 	"strings"
@@ -221,26 +220,14 @@ func (wsClient *SafeWebsocketClient) connect() error {
 		return fmt.Errorf("failed to connect to %s: %w", wsClient.baseHost, err)
 	}
 
-	conn.SetPingHandler(func(pingData string) error {
-		if err := conn.WriteMessage(websocket.PongMessage, []byte(pingData)); err != nil {
-			if err == websocket.ErrCloseSent {
-				return nil
-			}
-			if netErr, ok := err.(interface{ Timeout() bool }); ok && netErr.Timeout() {
-				return nil
-			}
-			return err
-		}
-		return nil
-	})
-
 	pingCtx, pingCancel := context.WithCancel(context.Background())
-	go wsClient.startPingTicker(pingCtx)
 	wsClient.mu.WriteHandler(func() error {
 		wsClient.cancelFuncs = append(wsClient.cancelFuncs, pingCancel)
 		return nil
 	})
 
+	go wsClient.startPingTicker(pingCtx)
+
 	if wsClient.conn != nil {
 		wsClient.conn.Close()
 	}
@@ -260,22 +247,25 @@ func (wsClient *SafeWebsocketClient) connect() error {
 			return nil
 		})
 
-		writer, err := conn.NextWriter(websocket.TextMessage)
-		if err != nil {
-			return
-		}
+		var c *websocket.Conn
+		wsClient.mu.ReadHandler(func() error {
+			c = conn
+			return nil
+		})
+
 		for {
 			select {
 			case <-ctx.Done():
-				fmt.Println("Writer stopped due to client shutdown")
+				log.Println("Writer stopped due to client shutdown")
 				return
 			case data := <-wsClient.writeChan:
-				if conn == nil {
+				if c == nil {
 					wsClient.triggerReconnect()
 					return
 				}
 
-				if _, err := writer.Write(data.Data); err != nil {
+				if err := c.WriteMessage(int(data.MessageType), data.Data); err != nil {
+					log.Printf("error on write message: %v\n", err)
 					wsClient.triggerReconnect()
 					return
 				}
@@ -290,50 +280,66 @@ func (wsClient *SafeWebsocketClient) connect() error {
 			return nil
 		})
 
+		var c *websocket.Conn
+
+		wsClient.mu.ReadHandler(func() error {
+			c = conn
+			return nil
+		})
+		if c == nil {
+			wsClient.triggerReconnect()
+			return
+		}
 		for {
 			select {
 			case <-ctx.Done():
-				fmt.Println("Reader stopped due to client shutdown")
+				log.Println("Reader stopped due to client shutdown")
 				return
 			default:
-				if conn == nil {
-					return
-				}
-				if err := conn.SetReadDeadline(time.Now().Add(readDeadline)); err != nil {
-					wsClient.triggerReconnect()
-					fmt.Printf("error on read deadline: %v\n", err)
+				if err := c.SetReadDeadline(time.Now().Add(readDeadline)); err != nil {
+					log.Printf("error on read deadline: %v\n", err)
 					return
 				}
 
-				mt, reader, err := conn.NextReader()
+				messageType, data, err := c.ReadMessage()
 				if err != nil {
+					log.Printf("error on read message: %v\n", err)
 					wsClient.triggerReconnect()
 					return
 				}
 
-				if mt != websocket.TextMessage {
+				if messageType != websocket.TextMessage {
 					continue
 				}
 
-				readerBytes, err := io.ReadAll(reader)
-				if err != nil {
-					fmt.Printf("io reader failed: %v\n", err)
-					wsClient.triggerReconnect()
-					return
-				}
 				select {
-				case wsClient.dataChannel <- readerBytes:
+				case wsClient.dataChannel <- data:
 				case <-ctx.Done():
 					return
 				default:
-					fmt.Println("Data channel full, dropping message")
+					log.Println("Data channel full, dropping message")
 				}
-
 			}
-
 		}
 	}()
 
+	conn.SetPingHandler(func(pingData string) error {
+		wsClient.writeChan <- Message{
+			MessageType: MessageTypePong,
+			Data:        []byte(pingData),
+		}
+		// if err := conn.WriteMessage(websocket.PongMessage, []byte(pingData)); err != nil {
+		// 	if err == websocket.ErrCloseSent {
+		// 		return nil
+		// 	}
+		// 	if netErr, ok := err.(interface{ Timeout() bool }); ok && netErr.Timeout() {
+		// 		return nil
+		// 	}
+		// 	return err
+		// }
+		return nil
+	})
+
 	return nil
 }
 
@@ -458,7 +464,7 @@ func (wsClient *SafeWebsocketClient) Close() error {
 		wsClient.conn.Close()
 	}
 	wsClient.isConnected = false
-	close(wsClient.dataChannel)
+	// close(wsClient.dataChannel)
 
 	return nil
 }