87 lines
2.3 KiB
Python
87 lines
2.3 KiB
Python
import json
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import printer
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config_filename = "server_config.json"
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class PrinterConfig:
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editables = {"address", "port"}
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required_params = {"address"}
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_address = None
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_port = 9100
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_profile = "RP-F10-80mm"
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_printer = None
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_dirty = True
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def load(self):
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"""Load printer configuration from config.json file."""
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with open(config_filename, "r", encoding="utf-8") as ifd:
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loaded_config = json.load(ifd)
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for param_name in self.editables:
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if param_name in loaded_config:
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setattr(self, param_name, loaded_config[param_name])
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def save(self):
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"""Save current printer configuration to config.json file."""
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with open(config_filename, "w", encoding="utf-8") as ofd:
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json.dump(
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{"address": self.address, "port": self.port, "profile": self.profile},
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ofd,
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ensure_ascii=False,
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)
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@property
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def complete(self):
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"""Check if all required parameters are set.
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Returns:
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bool: True if all required parameters are set, False otherwise.
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"""
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for param in self.required_params:
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if getattr(self, param) is None:
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return False
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return True
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@property
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def port(self):
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return self._port
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@port.setter
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def port(self, new_value: int):
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if not isinstance(new_value, int) or 0 > new_value < 65535:
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new_value = 9100
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self._port = new_value
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@property
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def address(self):
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return self._address
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@address.setter
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def address(self, new_value: str):
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if not isinstance(new_value, str):
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new_value = ""
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self._address = new_value
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@property
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def profile(self):
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return self._profile
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@profile.setter
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def profile(self, new_value: str):
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raise AttributeError("Printer profile is a fixed value. Check config.py.")
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@property
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def printer(self):
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if self._printer is not None:
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self._printer.printer.close()
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if self._dirty or self.printer is None:
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self._printer = printer.Printer(
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address=self.address,
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port=self.port,
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profile=self.profile,
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)
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self._dirty = False
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return self._printer
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