import tkinter as tk
import paho.mqtt.client as mqtt

# MQTT broker settings
mqtt_broker = "broker.hivemq.com"  # HiveMQ's public broker
mqtt_port = 1883                   # Default MQTT port for HiveMQ
mqtt_topic_sensor = "sensor/data"  # Topic for temperature data
mqtt_topic_gps = "gps/data"        # Topic for GPS coordinates
mqtt_topic_satellites = "gps/satellites"
mqtt_topic_error = "sensor/error"

# Callback for connection
def on_connect(client, userdata, flags, rc):
    if rc == 0:
        print("Connected to HiveMQ MQTT broker")
        # Subscribe to relevant topics
        client.subscribe([(mqtt_topic_sensor, 0), (mqtt_topic_gps, 0), 
                          (mqtt_topic_satellites, 0), (mqtt_topic_error, 0)])
    else:
        print(f"Failed to connect, return code {rc}")

# Callback for receiving messages
def on_message(client, userdata, msg):
    # Handle temperature data
    if msg.topic == mqtt_topic_sensor:
        temperature_data.set(msg.payload.decode('utf-8'))
    # Handle GPS data
    elif msg.topic == mqtt_topic_gps:
        gps_data.set(msg.payload.decode('utf-8'))
    # Handle error data if any
    elif msg.topic == mqtt_topic_error:
        error_data.set(msg.payload.decode('utf-8'))

# MQTT client setup
client = mqtt.Client("RaspberryPiClient", protocol=mqtt.MQTTv311)
client.on_connect = on_connect
client.on_message = on_message

# Connect to the broker
try:
    client.connect(mqtt_broker, mqtt_port, 60)
except Exception as e:
    print(f"Error connecting to MQTT broker: {e}")

# Tkinter GUI setup
root = tk.Tk()
root.title("Real-time Sensor and GPS Data")
root.geometry("400x300")

# Labels for temperature data
tk.Label(root, text="Temperature (DHT Sensor):", font=("Arial", 14)).pack(pady=10)
temperature_data = tk.StringVar()
temperature_data.set("Waiting for temperature data...")
tk.Label(root, textvariable=temperature_data, font=("Arial", 12)).pack()

# Labels for GPS data
tk.Label(root, text="GPS Coordinates:", font=("Arial", 14)).pack(pady=10)
gps_data = tk.StringVar()
gps_data.set("Waiting for GPS coordinates...")
tk.Label(root, textvariable=gps_data, font=("Arial", 12)).pack()

# Error data label
tk.Label(root, text="Error Data:", font=("Arial", 14)).pack(pady=10)
error_data = tk.StringVar()
error_data.set("No errors")
tk.Label(root, textvariable=error_data, font=("Arial", 12)).pack()

# MQTT loop integration with Tkinter
def mqtt_loop():
    client.loop(timeout=1.0)  # Run the MQTT client loop
    root.after(100, mqtt_loop)  # Repeat every 100 ms

# Start the MQTT loop in Tkinter
root.after(100, mqtt_loop)
print("Starting Tkinter main loop...")
root.mainloop()