from .error_sources import ErrorSource, WarningSource

from openflexure_microscope.config import user_configuration


def main():
    error_sources = []

    try:
        from sangaboard import Sangaboard
    except Exception as e:  # pylint: disable=W0703
        error_sources.append(ErrorSource(
            "Sangaboard module could not be imported."
        ))
    else:
        configuration = user_configuration.load()
        stage_type = configuration["stage"].get("type")
        stage_port = configuration["stage"].get("port")

        error_sources.append(WarningSource(
            "Stage serial port is not specified in configuration. Application will scan ports for a Sangaboard."
        ))


        # If any Sangaboard-based stage is configured for use
        if stage_type in ("SangaBoard", "SangaStage", "SangaDeltaStage"):
            # Try connecting on the specified port
            try:
                _ = Sangaboard(stage_port)
            except FileNotFoundError as e:  # pylint: disable=W0703
                if stage_port:
                    error_sources.append(ErrorSource(
                        f"No {stage_type} device was found on the configured port {stage_port}."
                    ))
                else:
                    error_sources.append(ErrorSource(
                        f"No {stage_type} device was found during port scanning."
                    ))
        else:
            error_sources.append(ErrorSource(
                f"Invalid stage type {stage_type} specified in configuration file."
            ))

    return error_sources