# pylint: disable=C0111,R0903

"""Displays CPU utilization across all CPUs."""

import psutil
import bumblebee.engine

class Module(bumblebee.engine.Module):
    def __init__(self, engine, config):
        super(Module, self).__init__(engine, config,
            bumblebee.output.Widget(full_text=self.utilization)
        )
        self._utilization = psutil.cpu_percent(percpu=False)
        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
            cmd="gnome-system-monitor")

    def utilization(self):
        return "{:05.02f}%".format(self._utilization)

    def update(self, widgets):
        self._utilization = psutil.cpu_percent(percpu=False)

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