'''
Script to see if the SARA-R410 is running
ex: 
python3 /var/www/nebuleair_pro_4g/SARA/sara.py ttyAMA2 AT+CCID? 2
ex 2 (turn on blue light):
python3 /var/www/nebuleair_pro_4g/SARA/sara.py ttyAMA2 AT+UGPIOC=16,2 2
ex 3 (reconnect network)
python3 /var/www/nebuleair_pro_4g/SARA/sara.py ttyAMA2 AT+COPS=1,2,20801 20

'''

import serial
import time
import sys
import json

parameter = sys.argv[1:]  # Exclude the script name
#print("Parameters received:")
port='/dev/'+parameter[0] # ex: ttyAMA2
command = parameter[1]  # ex: AT+CCID?
timeout = float(parameter[2])  # ex:2

#get baudrate
def load_config(config_file):
    try:
        with open(config_file, 'r') as file:
            config_data = json.load(file)
        return config_data
    except Exception as e:
        print(f"Error loading config file: {e}")
        return {}

# Define the config file path
config_file = '/var/www/nebuleair_pro_4g/config.json'
# Load the configuration data
config = load_config(config_file)
# Access the shared variables
baudrate = config.get('SaraR4_baudrate', 115200)

ser = serial.Serial(
    port=port,  #USB0 or ttyS0
    baudrate=baudrate, #115200 ou 9600
    parity=serial.PARITY_NONE, #PARITY_NONE, PARITY_EVEN or PARITY_ODD
    stopbits=serial.STOPBITS_ONE,
    bytesize=serial.EIGHTBITS,
    timeout = timeout
)

ser.write((command + '\r').encode('utf-8'))

#ser.write(b'ATI\r')            #General Information
#ser.write(b'AT+CCID?\r')       #SIM card number
#ser.write(b'AT+CPIN?\r')       #Check the status of the SIM card
#ser.write(b'AT+CIND?\r')       #Indication state (last number is SIM detection: 0 no SIM detection, 1 SIM detected, 2 not available)
#ser.write(b'AT+UGPIOR=?\r')   #Reads the current value of the specified GPIO pin
#ser.write(b'AT+UGPIOC?\r')     #GPIO select configuration
#ser.write(b'AT+COPS=?\r')     #Check the network and cellular technology the modem is currently using
#ser.write(b'AT+COPS=1,2,20801') #connext to orange
#ser.write(b'AT+CFUN=?\r')     #Selects/read the level of functionality 
#ser.write(b'AT+URAT=?\r')     #Radio Access Technology 
#ser.write(b'AT+USIMSTAT?')
#ser.write(b'AT+IPR=115200')           #Check/Define baud rate
#ser.write(b'AT+CMUX=?')



try:
    # Read lines until a timeout occurs
    response_lines = []
    while True:
        line = ser.readline().decode('utf-8').strip()
        if not line:
            break  # Break the loop if an empty line is encountered
        response_lines.append(line)

    # Print the response
    for line in response_lines:
        print(line)

except serial.SerialException as e:
    print(f"Error: {e}")

finally:
    if ser.is_open:
        ser.close()
        #print("Serial closed")