import json
import printer


class PrinterConfig:
    editables = {"printer_address", "printer_port"}
    required_params = {"printer_address"}

    def __init__(self):
        self.printer_address = None
        self.printer_port = 9100
        self.printer_profile = "RP-F10-80mm"
        self.__printer = None

    def save(self):
        with open("config.json", "w", encoding="utf-8") as ofd:
            json.dump(self.__dict__, ofd, ensure_ascii=False)

    def load(self):
        with open("config.json", "r", encoding="utf-8") as ifd:
            self.__dict__ = json.load(ifd)

    @property
    def complete(self):
        for param in self.required_params:
            if getattr(self, param) is None:
                return False
        return True

    @property
    def printer(self):
        if self.__printer is None:
            self.__printer = printer.Printer(
                address=self.printer_address,
                port=self.printer_port,
                profile=self.printer_profile,
            )
        return self.printer