service.py

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import shutil
from collections.abc import Mapping, Sequence
from typing import Optional

from selenium.webdriver.common import service

DEFAULT_EXECUTABLE_PATH = shutil.which("WPEWebDriver")


class Service(service.Service):
    """A Service class that is responsible for the starting and stopping of
    `WPEWebDriver`.

    :param executable_path: install path of the WPEWebDriver executable, defaults to the first
        `WPEWebDriver` in `$PATH`.
    :param port: Port for the service to run on, defaults to 0 where the operating system will decide.
    :param service_args: (Optional) Sequence of args to be passed to the subprocess when launching the executable.
    :param log_output: (Optional) File path for the file to be opened and passed as the subprocess
        stdout/stderr handler.
    :param env: (Optional) Mapping of environment variables for the new process, defaults to `os.environ`.
    """

    def __init__(
        self,
        executable_path: str = DEFAULT_EXECUTABLE_PATH,
        port: int = 0,
        log_output: Optional[str] = None,
        service_args: Optional[Sequence[str]] = None,
        env: Optional[Mapping[str, str]] = None,
        **kwargs,
    ):
        self._service_args = list(service_args or [])

        super().__init__(
            executable_path=executable_path,
            port=port,
            log_output=log_output,
            env=env,
            **kwargs,
        )

    def command_line_args(self) -> list[str]:
        return ["-p", f"{self.port}"] + self._service_args

    @property
    def service_args(self) -> Sequence[str]:
        return self._service_args

    @service_args.setter
    def service_args(self, value: Sequence[str]):
        if isinstance(value, str) or not isinstance(value, Sequence):
            raise TypeError("service_args must be a sequence")
        self._service_args = list(value)