feat: add support for message reading & sending typing indicator

Signed-off-by: sarthakjdev <jsarthak448@gmail.com>

Author: sarthakjdev

manager/message_manager.go

@@ -50,6 +50,12 @@ type MessageSendError struct {
 	FbtraceID    string `json:"fbtrace_id"`
 }
 
+// StatusResponse represents the API response for status updates (read receipts).
+type StatusResponse struct {
+	Success bool              `json:"success"`
+	Error   *MessageSendError `json:"error,omitempty"`
+}
+
 // Reply sends a reply message using the provided BaseMessage and returns a structured response.
 // If the API response contains an error, it returns that error.
 func (mm *MessageManager) Reply(message components.BaseMessage, phoneNumber string, replyTo string) (*MessageSendResponse, error) {
@@ -117,3 +123,60 @@ func (mm *MessageManager) Send(message components.BaseMessage, phoneNumber strin
 
 	return &sendResponse, nil
 }
+
+// ReadMessage marks a message as read.
+// messageId: The ID of the message to mark as read
+// showTyping: Whether to show typing indicator (will auto-dismiss after 25 seconds or when you respond)
+func (mm *MessageManager) readMessage(messageId string, showTyping bool) error {
+	// Create the request body for marking message as read
+	requestBody := map[string]interface{}{
+		"messaging_product": "whatsapp",
+		"status":            "read",
+		"message_id":        messageId,
+	}
+
+	// Add typing indicator if requested
+	if showTyping {
+		requestBody["typing_indicator"] = map[string]string{
+			"type": "text",
+		}
+	}
+
+	body, err := json.Marshal(requestBody)
+	if err != nil {
+		return fmt.Errorf("error marshalling read request body: %v", err)
+	}
+
+	// Build the API request
+	apiRequest := mm.requester.NewApiRequest(strings.Join([]string{mm.PhoneNumberId, "messages"}, "/"), http.MethodPost)
+	apiRequest.SetBody(string(body))
+	responseStr, err := apiRequest.Execute()
+	if err != nil {
+		return fmt.Errorf("error executing read message request: %v", err)
+	}
+
+	// Parse the response to check for errors
+	var statusResponse StatusResponse
+	err = json.Unmarshal([]byte(responseStr), &statusResponse)
+	if err != nil {
+		return fmt.Errorf("error unmarshalling read response: %v", err)
+	}
+
+	if statusResponse.Error != nil {
+		return fmt.Errorf("error marking message as read: %s", statusResponse.Error.Message)
+	}
+
+	return nil
+}
+
+// ReadMessageWithTyping marks a message as read and shows typing indicator.
+// This is a convenience method for ReadMessage(messageId, true).
+func (mm *MessageManager) ReadMessageWithTyping(messageId string) error {
+	return mm.readMessage(messageId, true)
+}
+
+// ReadMessageOnly marks a message as read without showing typing indicator.
+// This is a convenience method for ReadMessage(messageId, false).
+func (mm *MessageManager) ReadMessageOnly(messageId string) error {
+	return mm.readMessage(messageId, false)
+}