#!/usr/bin/python3
# Copyright 2022 Smart Sensor Devices in Sweden AB
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

import time
import serial.tools.list_ports
import serial
import RPi.GPIO as io


switch = 7  # Edit this to suit your setup! (7 = GPIO 04), use command pinout to graphically show you the GPIO pins for the board
io.setmode(io.BOARD)
io.setup(switch, io.OUT)

master_array = []
index = 1
dongle_port = ""

print("\nWelcome to BleuIO RaspberryPi Switch Example!\n")

print("\nPlease insert dongle...")
try:
    while len(master_array) == 0:
        m_ports = serial.tools.list_ports.comports(include_links=False)
        for port in m_ports:
            if str(port.hwid).__contains__("VID:PID=2DCF"):
                master = port.device + " " + port.hwid
                if master.__contains__("VID:PID=2DCF:6002"):
                    print("Found dongle in port: %s" % port.device)
                    master_array.append(master)
                    dongle_port = port
                    break

    for dongle in master_array:
        print("\nConnecting to BleuIO @ %s\n" % dongle)

    time.sleep(0.5)
    dongle_conn = serial.Serial(
        dongle_port.device,
        115200,
        timeout=1,
    )

    if not dongle_conn.is_open:
        dongle_conn.open()

    print("Starting Advertising...")
    dongle_conn.write("AT+GAPDISCONNECTALL\rAT+DUAL\rAT+ADVSTART\rATI\r".encode())
    read_tries = 0
    dongle_resp = ""
    while read_tries < 20:
        dongle_resp = dongle_conn.readline().decode()
        if "Not Advertising" in dongle_resp:
            dongle_conn.write("AT+ADVSTART\r")
        if b"Advertising\r\n" in dongle_resp.encode():
            break
        read_tries += 1
        time.sleep(0.01)

    if dongle_resp:
        print("BleuIO is %s" % dongle_resp)
    else:
        print("ERROR! No response...")
        exit()

    print(
        "Going into loop, waiting for signal to turn switch on/off...\n(Press Ctrl+C to abort)"
    )
    while True:
        try:
            dongle_resp = dongle_conn.readline().decode()
            if "SW=0" in dongle_resp:
                print("Turn Switch off!")
                io.output(switch, io.LOW)
            if "SW=1" in dongle_resp:
                print("Turn Switch on!")
                io.output(switch, io.HIGH)
        except KeyboardInterrupt:
            if dongle_conn.is_open:
                dongle_conn.write("AT+GAPDISCONNECTALL\rAT+ADVSTOP\r".encode())
                dongle_conn.close()
                io.cleanup()
            print("\nBye!")
            exit()

except Exception as e:
    print("(ERROR: %s)" % (e))