#!/usr/bin/php
<?php

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

$mountPoint = $argv[1] ?? '/';
$range1 = $argv[2] ?? 70;
$range2 = $argv[3] ?? 90;

$command = sprintf(
    'df -h %s | tail -n 1',
    escapeshellcmd($mountPoint)
);

$result = trim(shell_exec($command));

if (empty($result)) {
    die;
}

list($dev, $size, $used, $free, $usedP, $point) = explode(' ', preg_replace('/\s+/', ' ', $result));

$percent = intval($usedP);

if ($percent < $range1) {
    $color = color('normal');
} elseif ($percent < $range2) {
    $color = color('warning');
} else {
    $color = color('critical');
}

$fullText = sprintf('[%s] %s%%', $mountPoint, $percent);
$shortText = sprintf('%s: %s%%', $mountPoint, $percent);

echo block(
    'mount_point_space_'.$mountPoint,
    [
        'full_text' => $fullText,
        'short_text' => $shortText,
        'color' => $color,
    ]
);