#!python
#
# 2021  Zhengyu Peng
# Website: https://zpeng.me
#
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# .::::::::/+###.     :##:
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#        `-/+####/.
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#            .+:

import socket
from threading import Thread
import json


class BluetoothServer(Thread):
    ERROR = -1
    LISTEN = 1
    CONNECTED = 2
    STOP = 3

    SIG_NORMAL = 0
    SIG_STOP = 1
    SIG_DISCONNECT = 2

    def __init__(self, out_cmd_queue):
        Thread.__init__(self)

        self.cmd_queue = out_cmd_queue

        with open('./config.json', 'r') as read_file:
            self.config = json.load(read_file)

        # import commands
        # cmd = "hciconfig"
        # device_id = "hci0"
        # status, output = commands.getstatusoutput(cmd)
        # bt_mac = output.split("{}:".format(device_id))[1].split("BD Address: ")[1].split(" ")[0].strip()
        # print bt_mac

        self.mac = '192.168.1.127'
        self.port = 10
        self.bt_socket = socket.socket(
            socket.AF_BLUETOOTH, socket.SOCK_STREAM, socket.BTPROTO_RFCOMM)

        self.signal = self.SIG_NORMAL

    def run(self):
        try:
            self.bt_socket.bind((self.mac, self.port))
            self.bt_socket.listen(1)
            print('TCP listening')
        except OSError as err:
            # print('emit tcp server error')
            # self.status.emit(self.STOP, '')
            pass
        else:
            while True:
                # Wait for a connection
                # print('wait for a connection')
                # self.status.emit(self.LISTEN, '')
                try:
                    self.connection, addr = self.bt_socket.accept()
                    # self.connection.setblocking(False)
                    # self.connection.settimeout(1)
                    print('New connection')
                except socket.timeout as t_out:
                    pass
                else:
                    while True:
                        # print('waiting for data')
                        # if self.signal == self.SIG_NORMAL:
                        try:
                            data = self.connection.recv(4096)
                        except socket.error as e:
                            print(e)
                            break
                        else:
                            if data:
                                self.cmd_queue.put(data.decode())
                            else:
                                self.cmd_queue.put('standby')
                                break

        finally:
            self.bt_socket.close()
            self.cmd_queue.put('standby')
            print('exit')