"""Shows status and load percentage of logitech's unifying device

Requires the following executable:
    * solaar (from community)

contributed by `cambid <https://github.com/cambid>`_ - many thanks!
"""

import logging

import core.module
import core.widget
import core.decorators

import util.cli


class Module(core.module.Module):
    @core.decorators.every(seconds=30)
    def __init__(self, config, theme):
        super().__init__(config, theme, core.widget.Widget(self.utilization))
        self.__battery = self.parameter("device", "")
        self.background = True
        self.__battery_status = ""
        self.__error = False
        if self.__battery != "":
            self.__cmd = f"solaar show '{self.__battery}'"
        else:
            self.__cmd = "solaar show"

    @property
    def __format(self):
        return self.parameter("format", "{}")

    def utilization(self, widget):
        return self.__format.format(self.__battery_status)

    def update(self):
        self.__error = False
        code, result = util.cli.execute(
            self.__cmd, ignore_errors=True, return_exitcode=True
        )

        if code == 0:
            for line in result.split('\n'):
                if line.count('Battery') > 0:
                    self.__battery_status = line.split(':')[1].strip()
        else:
            self.__error = True
            logging.error(f"solaar exited with {code}: {result}")

    def state(self, widget):
        if self.__error:
            return "warning"
        return "okay"


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