#!/usr/bin/env php
<?php

$gulp = '/usr/local/lib/node_modules/gulp/bin/gulp.js';

$cmd = [
	escapeshellcmd($gulp),
	'--color',
];
foreach($argv as $index => $arg) {
	if($index) {
		$cmd[] = escapeshellarg($arg);
	}
}

$dir = getcwd();

if(file_exists($dir .'/gulp.sh')) {
	$cmd[0] = escapeshellcmd($dir .'/gulp.sh');
} else {
	$gulpdir = gulpDir($dir);
	if($gulpdir && $dir !== $gulpdir) {
		chdir($gulpdir);
	}
}


$r = 0;
passthru(implode(' ', $cmd), $r);
exit($r);

function globTests($tests) {
	foreach($tests as $test) {
		$found = glob($test);
		foreach($found as $file) {
			if(is_file($file)) {
				return $file;
			}
		}
	}
}

function gulpDir($dir) {
	$dir_p1 = dirname($dir, 1);
	$dir_p2 = dirname($dir_p1, 1);
	$found = globTests([
		$dir . '/gulpfile.js',
		$dir . '/asset/gulpfile.js',
		$dir . '/assets/gulpfile.js',
		$dir . '/src/gulpfile.js',
		$dir_p1 . '/gulpfile.js',
		$dir_p2 . '/gulpfile.js',
		$dir . '/content/themes/*/gulpfile.js',
		$dir . '/content/themes/*/asset*/gulpfile.js',
		$dir . '/content/themes/*/src/gulpfile.js',
		$dir . '/content/themes/*/*/gulpfile.js',
		$dir . '/content/themes/*/*/*/gulpfile.js',
		$dir . '/themes/*/gulpfile.js',
		$dir . '/themes/*/asset*/gulpfile.js',
		$dir . '/themes/*/src/gulpfile.js',
		$dir . '/themes/*/*/gulpfile.js',
		$dir . '/themes/*/*/*/gulpfile.js',
		$dir . '/*/gulpfile.js',
		$dir . '/*/asset*/gulpfile.js',
		$dir . '/*/src/gulpfile.js',
		$dir . '/*/*/gulpfile.js',
		$dir . '/*/*/*/gulpfile.js',
	]);
	if($found) {
		return dirname($found);
	}
}