import machine
import network
import time
import urequests
import ujson
import dht

# WiFi credentials
WIFI_SSID = "EMBEDDED_MEKA"
WIFI_PASSWORD = "kucingmeow2"

#ThingSpeak API settings
THINGSPEAK_API_KEY = "H4B6K1RG5MCD2JIW"
THINGSPEAK_URL = "https://api.thingspeak.com/update?api_key=H4B6K1RG5MCD2JIW"


potentiometer_1 = machine.ADC(26)
potentiometer_2 = machine.ADC(27)
dht_sensor = dht.DHT22(machine.Pin(4))

def read_room_temperature_humidity():
    dht_sensor.measure()
    temperature = dht_sensor.temperature()
    humidity = dht_sensor.humidity()
    return temperature, humidity

def interpret_conditions(HR, SP, Temp, Hum):
    HR_condition = "Not engaging" if 60 <= HR <= 79 else "Engaging" if 79 < HR < 100 else "Highly Engaging"
    HR_percentage = 0 if HR_condition == "Not engaging" else 20 if HR_condition == "Engaging" else 40

    SP_condition = "Booing" if SP<=3750 else "Cheering"
    SP_percentage = 0 if SP_condition == "Booing" else 40 

    temp_condition = "Optimal" if 22 <= Temp <= 26 else "Too Cold" if Temp < 22 else "Too Hot"
    temp_percentage = 0 if temp_condition in ["Too Cold", "Too Hot"] else 10

    hum_condition = "Optimal" if 40 <= Hum <= 60 else "Too Dry" if Hum < 40 else "Too Wet"
    hum_percentage = 0 if hum_condition in ["Too Dry", "Too Wet"] else 10
    
    print(f"Heart Rate Condition: {HR_condition} (+{HR_percentage}%)")
    print(f"Sound Pitch Condition: {SP_condition} (+{SP_percentage}%)")
    print(f"Temperature Condition: {temp_condition} (+{temp_percentage}%)")
    print(f"Humidity Condition: {hum_condition} (+{hum_percentage}%)")

    total_percentage = HR_percentage + SP_percentage + temp_percentage + hum_percentage
    return total_percentage
     

def send_data_to_thingspeak(HR, SP, Temp, Hum, ENG):
    data ={
        "api_key": THINGSPEAK_API_KEY,
        "field2": HR,
        "field3": SP,  
        "field4": Temp,
        "field5": Hum,
        "field6": ENG,
    }
    response = urequests.post(THINGSPEAK_URL,data=ujson.dumps(data),headers={"Content-Type":"application/json"})
    response.close()

wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(WIFI_SSID, WIFI_PASSWORD)

while not wifi.isconnected():
    time.sleep(1)

print("Connected to Wi-Fi")

if __name__== "__main__":
    try:
        while True:

            pot1 = potentiometer_1.read_u16()
            HR = (pot1) * (60) / (65535) + 60
            pot2 = potentiometer_2.read_u16()
            SP = (pot2) * (7500) / (65535) + 500
            Temp, Hum = read_room_temperature_humidity()
            #Assuming lowest pitch = 500 and highest pitch = 8000
            #Assuming high sound pitch is cheering，low sound pitch is booing 
            print(f"Heart Rate:{HR} Sound Pitch:{SP} Temperature:{Temp} Humidity:{Hum}")
            ENG = interpret_conditions(HR, SP, Temp, Hum)
            print(f"Total Participant Engagement: {ENG}%")   
            send_data_to_thingspeak(HR, SP, Temp, Hum, ENG)
            print("Data sent to ThingSpeak")
            time.sleep(15)

    except KeyboardInterrupt:
        pass