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/last-will-test.py

@@ -0,0 +1,35 @@
+from paho.mqtt import client as mqtt
+import time
+import random
+import os
+import signal
+import json
+
+BROKER = 'hp.henrypump.cloud'  # or your broker IP/domain
+PORT = 1883
+TOPIC = "v1/devices/me/attributes"
+WILL_MSG = json.dumps({"isActive": False})
+CLIENT_A_ID = f'client-a-{random.randint(0, 1000)}'
+
+
+def start_client_a_with_will():
+    client = mqtt.Client(client_id=CLIENT_A_ID, clean_session=True)
+    client.will_set(TOPIC, WILL_MSG, qos=1, retain=False)
+    client.username_pw_set("e5xv3wfi1oa44ty2ydv2")
+    client.connect(BROKER, PORT)
+    print("[Client A] Connected with last will set.")
+    client.publish("v1/devices/me/attributes", json.dumps({"isActive": True}))
+    client.loop_start()
+    return client
+
+def simulate_crash(client):
+    print("[Client A] Simulating crash (kill connection)...")
+    client._sock.close()  # simulate ungraceful disconnect
+    client.loop_stop()
+
+if __name__ == "__main__":
+    client_a = start_client_a_with_will()
+
+    time.sleep(2)  # wait for connections to establish
+    raise Exception
+