# -*- coding: utf-8 -*-

"""Displays GPU name, temperature and memory usage.

Parameters:
   * nvidiagpu.format: Format string (defaults to '{name}: {temp}°C %{usedmem}/{totalmem} MiB')
                       Available values are: {name} {temp} {mem_used} {mem_total} {fanspeed} {clock_gpu} {clock_mem}

Requires nvidia-smi
"""

import subprocess
import bumblebee.input
import bumblebee.output
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 = 'Not found: 0 0/0'

    def utilization(self, widget):
        return self._utilization

    def update(self, widgets):
        sp = subprocess.Popen(['nvidia-smi', '-q'], stdout=subprocess.PIPE, stderr=subprocess.PIPE)
        out_str = sp.communicate()
        out_list = out_str[0].decode('utf-8').split('\n')

        title = ''
        usedMem = ''
        totalMem = ''
        temp = ''
        name = 'not found'
        clockMem = ''
        clockGpu = ''
        fanspeed = ''
        for item in out_list:
            try:
                key, val = item.split(':')
                key, val = key.strip(), val.strip()
                if title == 'Clocks':
                    if key == 'Graphics':
                        clockGpu = val.split(' ')[0]
                    elif key == 'Memory':
                        clockMem = val.split(' ')[0]
                if title == 'FB Memory Usage':
                    if key == 'Total':
                        totalMem = val.split(' ')[0]
                    elif key == 'Used':
                        usedMem = val.split(' ')[0]
                elif key == 'GPU Current Temp':
                    temp = val.split(' ')[0]
                elif key == 'Product Name':
                    name = val
                elif key == 'Fan Speed':
                    fanspeed = val.split(' ')[0]

            except:
                title = item.strip()

        str_format = self.parameter('format', '{name}: {temp}°C {mem_used}/{mem_total} MiB')
        self._utilization = str_format.format(
                name = name,
                temp = temp,
                mem_used = usedMem,
                mem_total = totalMem,
                clock_gpu = clockGpu,
                clock_mem = clockMem,
                fanspeed = fanspeed,
            )