new file: Code Snippets/input-test.py

new file:   Code Snippets/ivs-mqtt-client.ipynb
new file:   Code Snippets/ivs-player.html
new file:   Code Snippets/last-will-test.py

Code Snippets/input-test.py

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+from paho.mqtt import client as mqtt_client
+import random
+import time
+import json
+from prompt_toolkit import PromptSession, prompt
+from prompt_toolkit.patch_stdout import patch_stdout
+
+broker = '162.199.59.89'
+port = 1883
+topic = "python/mqtt"
+client_id = f'python-mqtt-{random.randint(0, 1000)}'
+username = "nico"
+password = "nico"
+
+def connect_mqtt():
+    def on_connect(client, userdata, flags, rc):
+        if rc == 0:
+            print("Connected to MQTT Broker!")
+        else:
+            print("Failed to connect, return code %d\n", rc)
+
+    client = mqtt_client.Client(client_id=client_id)
+    client.username_pw_set(username, password)
+    client.on_connect = on_connect
+    client.connect(broker, port)
+    return client
+
+
+def publish(client):
+     msg_count = 1
+     while True:
+         time.sleep(1)
+         msg = f"messages: {msg_count}"
+         result = client.publish(topic, msg)
+         # result: [0, 1]
+         status = result[0]
+         if status == 0:
+             print(f"Send {msg} to topic {topic}")
+         else:
+             print(f"Failed to send message to topic {topic}")
+         msg_count += 1
+         if msg_count > 5:
+             break
+
+def subscribe(client: mqtt_client.Client):
+    def on_message(client, userdata, msg):
+        try:
+            payload = json.loads(msg.payload.decode())
+            sender_id = payload.get("sender_id")
+            message = payload.get("message")
+            #print(sender_id, client_id)
+            if sender_id != username:
+                print(f"{sender_id}: {message}")
+        except json.JSONDecodeError:
+            print(f"Received non-JSON message: {msg.payload.decode()}")
+
+    client.subscribe(topic)
+    client.on_message = on_message
+
+
+def console(client: mqtt_client.Client):
+    session = PromptSession()
+    with patch_stdout():
+        while True:
+            try:
+                msg = session.prompt(f"{username}: ", multiline=True)
+                if msg.strip().lower() == 'exit':
+                    break
+                payload = json.dumps({"sender_id": username, "message": msg})
+                result = client.publish(topic, payload)
+                if result.rc != 0:
+                    print("Failed to publish message")
+            except KeyboardInterrupt:
+                break
+
+
+def run():
+    client = connect_mqtt()
+    subscribe(client)
+    client.loop_start()
+    console(client)
+    
+    #client.loop_stop()
+    #publish(client)
+    #client.loop_forever()
+    
+run()