# module to start network connection
import network
import utime
import cfg

# instatiate network interface and switch off power saving as we run a server
station = network.WLAN(network.STA_IF)
station.config(pm=0xa11140)

version = "13-Sep-22"


def connect():
    """ connect to wifi network using SSID and password """

    ssid = "your_SSID"
    password = "your_PASSWORD"


    if cfg.debug > 0:
        print("... connecting to SSID: "+ssid)
 
    if station.isconnected() is True:
        rssi = [x[3] for x in station.scan(ssid=ssid)]
        print("Already connected, rssi = ", rssi)
        return(station.ifconfig())
 
    station.active(True)
    station.connect(ssid, password)

    max_wait = 10
    while station.isconnected() is False:
        if cfg.debug > 0:
            print(".", end=" ")

        # sleep 1s added to avoid intermittent hangup
        utime.sleep(1)
        max_wait -= 1
        if max_wait == 0:
            wlan_status = station.status()
            raise RuntimeError("network connection failed, status= "+str(wlan_status))

    if cfg.debug > 0:
        rssi = [x[3] for x in station.scan(ssid=ssid)]
        print("wifiConnect: Connection successful")
        print(station.ifconfig(), "rssi= ", rssi)

    return(station.ifconfig())


def disconnect():
    """disconnect from wifi network"""
  
    # station = network.WLAN(network.STA_IF)
  
    if station.isconnected() is False:
        print("not connected")
        return
 
    station.active(False)
   
    while station.isconnected() is True:
        pass
 
    print("Disconnect successful")


def scan():
    """ scan network and report back ssid and rssi """
    scan = station.scan(ssid="vava_point")
    for i in scan:
        list = scan[scan.index(i)]
        print(str(list[0]), ":", list[3])