# main.py - IoT Medical Monitoring (Pressure + Position) with fake WiFi workaround

import time
import math

# Simulated BMP280 pressure sensor
class BMP280:
    def read_pressure(self):
        return 1012.5 + math.sin(time.time()) * 2  # simulate fluctuation

# Simulated MPU6050 tilt angle
class MPU6050:
    def read_position_angle(self):
        return 10 + math.sin(time.time()) * 30  # simulate angle tilt

# Fake WiFi connection (Wokwi doesn't simulate WiFi)
def connect_wifi():
    print("[FakeWiFi] Connecting to WiFi...")
    time.sleep(1)
    print("[FakeWiFi] Connected successfully (simulated)")

# Simulated ThingSpeak API call (print instead of real request)
def send_to_thingspeak(systolic, diastolic, angle):
    api_key = "THINGSPEAK_API_KEY"
    print("[ThingSpeak] Sending data:")
    print(f"  -> Systolic: {systolic:.1f} mmHg")
    print(f"  -> Diastolic: {diastolic:.1f} mmHg")
    print(f"  -> Angle: {angle:.2f}°")
    print(f"  -> Sent to https://api.thingspeak.com/update?api_key={api_key}&field1={systolic:.1f}&field2={diastolic:.1f}&field3={angle:.2f}")

# Simulated alert system

def check_alerts(systolic, diastolic, angle):
     #Typical human blood pressure values:
     #Systolic: 90–120 mmHg - Diastolic: 60–80 mmHg
    alerts = []
    if angle < 10 and systolic < 90:
        alerts.append("⚠️ Πιθανή ορθοστατική υπόταση : ελεγχος!")
    if abs(angle) > 45:
        alerts.append("⚠️ Επικίνδυνη κλίση : πιθανή πτώση!")
    if abs(angle) < 5 and pressure > 120:
        alerts.append("ℹ️ Καθιστή θέση με υψηλή πίεση : έλεγχος συνθηκών.")
    for alert in alerts:
        print(alert)

# Initialize sensors
bmp280 = BMP280()
mpu6050 = MPU6050()

connect_wifi()

while True:
    angle = mpu6050.read_position_angle()
    #In reality, a BMP280 gives atmospheric pressure in hPa, not blood pressure. But for simulation/educational purposes, we can "translate" it.
    pressure = bmp280.read_pressure()
    # Convert BMP280 pressure to fake systolic and diastolic (for demo only!)
    systolic = (pressure - 980) * math.rand 1.5 + 100  # simulate range ~100–140 mmHg
    diastolic = systolic * 0.75             # keep diastolic ~75% of systolic

    check_alerts(systolic, diastolic, angle)
    send_to_thingspeak(systolic, diastolic, angle)

    time.sleep(30)  # simulate ThingSpeak limit