'''
  _   _ ____  __  __ 
 | \ | |  _ \|  \/  |
 |  \| | |_) | |\/| |
 | |\  |  __/| |  | |
 |_| \_|_|   |_|  |_|
 
Script to get NPM values
need parameter: port
/usr/bin/python3 /var/www/moduleair_pro_4g/NPM/get_data.py ttyAMA5
'''

import serial
import requests
import json
import sys

parameter = sys.argv[1:]  # Exclude the script name
#print("Parameters received:")
port='/dev/'+parameter[0]

ser = serial.Serial(
    port=port,
    baudrate=115200,
    parity=serial.PARITY_EVEN,
    stopbits=serial.STOPBITS_ONE,
    bytesize=serial.EIGHTBITS,
    timeout = 1
)

ser.write(b'\x81\x11\x6E')      #data10s
#ser.write(b'\x81\x12\x6D')      #data60s

while True:
    try:
        byte_data = ser.readline()
        #print(byte_data)
        stateByte = int.from_bytes(byte_data[2:3], byteorder='big')
        Statebits = [int(bit) for bit in bin(stateByte)[2:].zfill(8)]
        PM1 = int.from_bytes(byte_data[9:11], byteorder='big')/10
        PM25 = int.from_bytes(byte_data[11:13], byteorder='big')/10
        PM10 = int.from_bytes(byte_data[13:15], byteorder='big')/10
        #print(f"State: {Statebits}")
        #print(f"PM1: {PM1}")
        #print(f"PM25: {PM25}")
        #print(f"PM10: {PM10}")
        #create JSON
        data = {
            'capteurID': 'nebuleairpro1',
            'sondeID':'USB2',
            'PM1': PM1,
            'PM25': PM25,
            'PM10': PM10,
            'sleep' : Statebits[0],
            'degradedState' : Statebits[1],
            'notReady' : Statebits[2],
            'heatError' : Statebits[3],
            't_rhError' : Statebits[4],
            'fanError' : Statebits[5],
            'memoryError' : Statebits[6],
            'laserError' : Statebits[7]
        }
        json_data = json.dumps(data)
        print(json_data)
        break
    except KeyboardInterrupt:
        print("User interrupt encountered. Exiting...")
        time.sleep(3)
        exit()
    except:
        # for all other kinds of error, but not specifying which one
        print("Unknown error...")
        time.sleep(3)
        exit()