#!/usr/bin/php
<?php

require __DIR__.'/base/block.php';

$acpi = shell_exec('acpi');

if (!preg_match('`Discharging`', $acpi)) {
    preg_match('`([0-9]+%)`', $acpi, $values);

    if (!empty($values)) {
        $charging = $values[1];

        if ($charging < 20) {
            $color = color('critical');
        } elseif ($charging < 50) {
            $color = color('warning');
        } else {
            $color = color('normal');
        }

        $charging .= '↑';

        $block = block(
            'volume',
            [
                'full_text' => $charging,
                'color' => $color,
            ]
        );
    } else {
        $block = block(
            'volume',
            [
                'full_text' => '??? ↑',
                'color' => color('info'),
            ]
        );
    }
} else {
    preg_match('`([0-9]+%), ([0-9]+:[0-9]+)`', $acpi, $values);

    if ($values[0] < 20) {
        $color = color('critical');
    } elseif ($values[0] < 50) {
        $color = color('warning');
    } else {
        $color = color('info');
    }

    $charging = $values[1].'↓';
    $times = str_replace(':', 'h', $values[2]);
    $text = implode(' ', array($charging, $times));

    $block = block(
        'volume',
        [
            'full_text' => $text,
            'color' => $color,
        ]
    );
}

echo $block;