import serial


class abfactory():
    def __init__(self, classname=None):
        self.process = classname

    def setup_baudrate(self, com, rate):
        self.process.setup_baudrate(self, com, rate)

    def turn_on_machine(self):
        self.process.turn_on_machine(self)

    def trun_off_machine(self):
        self.process.trun_off_machine(self)

    def readData(self):
        return self.process.readData(self)


class CINO_S680():  # CINO S680  FUZZYSCAN Barcode Scanner

    ser = None

    def setup_baudrate(self, com, rate):
        self.ser = serial.Serial(com, rate)

    def turn_on_machine(self):
        msg = 'on'
        self.ser.write(str.encode(msg))

    def trun_off_machine(self):
        msg = 'off'
        self.ser.write(str.encode(msg))

    def readData(self):
        data_raw = None
        result = None
        try:
            while True:
                while self.ser.is_open:
                    # self.ser.in_waiting ##一般寫法用來等有資料輸出
                    data_raw = self.ser.read_all()
                    result = data_raw.decode()  # 用預設的UTF-8解碼
                    if result != "":
                        self.ser.close()
                break
            self.ser = None
            return str.strip(result)

        except Exception:
            print('err')


if __name__ == "__main__":
    br = abfactory()
    br.process = CINO_S680
    br.setup_baudrate('COM10', '9600')
    br.turn_on_machine()
    print(br.readData())