<?php

class Crunchbutton_Util extends Cana_Model {
	public function frontendTemplates($export = false) {
		$files = [];

		$themes = c::view()->theme();
		$themes = array_reverse($themes);


		foreach ($themes as $theme) {
			if (file_exists(c::config()->dirs->view.$theme.'/frontend')) {
				$frontendDir = $theme;
				break;
			}
		}

		foreach (new DirectoryIterator(c::config()->dirs->view.$frontendDir.'/frontend') as $fileInfo) {
			if (!$fileInfo->isDot() && $fileInfo->getBasename() != '.DS_Store' ) {
				$files[] = $fileInfo->getBasename('.phtml');
			}
		}
		if ($export) {
			$files[] = 'legal';
		}
		return $files;
	}

	public static function stringToColorCode( $str ) {
		$code = dechex( crc32( $str ) );
		$code = substr( $code, 0, 6 );
		return $code;
	}

	public static function intervalToSeconds( $interval ){
		return ( $interval->s )
				 + ( $interval->i * 60 )
				 + ( $interval->h * 60 * 60 )
				 + ( $interval->d * 60 * 60 * 24 )
				 + ( $interval->m * 60 * 60 * 24 * 30 )
				 + ( $interval->y * 60 * 60 * 24 * 365 );
	}

	public static function inverseColor( $color ){
		$r = dechex( 255 - hexdec( substr( $color, 0, 2 ) ) );
		$r = ( strlen( $r ) > 1 ) ? $r : '0' . $r;
		$g = dechex( 255 - hexdec( substr( $color, 2, 2 ) ) );
		$g = ( strlen( $g ) > 1 ) ? $g : '0' . $g;
		$b = dechex( 255 - hexdec( substr( $color, 4, 2 ) ) );
		$b = ( strlen( $b ) > 1 ) ? $b : '0' . $b;
		return $r . $g . $b;
	}

	public static function isDarkColor( $color ){
		$c_r = hexdec( substr( $color, 0, 2 ) );
		$c_g = hexdec( substr( $color, 2, 2 ) );
		$c_b = hexdec( substr( $color, 4, 2 ) );
		// calc brightness value from 0 to 255
		return ( ( ( $c_r * 299 ) + ( $c_g * 587 ) + ( $c_b * 114 ) ) / 1000 < 130 );
	}

	public static function ceil($value, $precision) {
		$pow = pow ( 10, $precision );
		return ( ceil ( $pow * $value ) + ceil ( $pow * $value - ceil ( $pow * $value ) ) ) / $pow;
	}

	public static function round_up ($value, $places=0) {
		if ($places < 0) { $places = 0; }
		$mult = pow(10, $places);
		return ceil($value * $mult) / $mult;
 	}

	public static function encodeTitle($title) {

		$find = array(
			'/&amp;/',
			'/[^\w ]+/',
			'/ /',
		);
		$replace = array(
			' ',
			'',
			'-'
		);

		$title = preg_replace($find, $replace, $title);
		while (str($title,'--') !== false) {
			$title = str_replace('--','-',$title);
		}

		return strtolower(urlencode(trim(self::truncateByWord($title,50,''))));
	}

	static function uploadWWW(){
		return '/upload/';
	}

	static function uploadPath(){
		$file_path = realpath( dirname( __FILE__ ) );
		$www_path = realpath( $file_path . '/../../../www/' );
		$upload_path = $www_path . '/upload';
		if ( !file_exists( $upload_path ) ) {
    	@mkdir( $upload_path, 0777, true );
		}
		return realpath( $upload_path );
	}

	static public function allowedExtensionUpload( $ext ){
		$ext = strtolower( $ext );
		$allowed = array( 'gif','png' ,'jpg', 'doc', 'docx', 'pdf', 'jpeg' );
		return in_array( $ext, $allowed );
	}

	static public function slugify( $txt ){

		$table = array(
						'Š'=>'S', 'š'=>'s', 'Đ'=>'Dj', 'đ'=>'dj', 'Ž'=>'Z', 'ž'=>'z', 'Č'=>'C', 'č'=>'c', 'Ć'=>'C', 'ć'=>'c',
						'À'=>'A', 'Á'=>'A', 'Â'=>'A', 'Ã'=>'A', 'Ä'=>'A', 'Å'=>'A', 'Æ'=>'A', 'Ç'=>'C', 'È'=>'E', 'É'=>'E',
						'Ê'=>'E', 'Ë'=>'E', 'Ì'=>'I', 'Í'=>'I', 'Î'=>'I', 'Ï'=>'I', 'Ñ'=>'N', 'Ò'=>'O', 'Ó'=>'O', 'Ô'=>'O',
						'Õ'=>'O', 'Ö'=>'O', 'Ø'=>'O', 'Ù'=>'U', 'Ú'=>'U', 'Û'=>'U', 'Ü'=>'U', 'Ý'=>'Y', 'Þ'=>'B', 'ß'=>'Ss',
						'à'=>'a', 'á'=>'a', 'â'=>'a', 'ã'=>'a', 'ä'=>'a', 'å'=>'a', 'æ'=>'a', 'ç'=>'c', 'è'=>'e', 'é'=>'e',
						'ê'=>'e', 'ë'=>'e', 'ì'=>'i', 'í'=>'i', 'î'=>'i', 'ï'=>'i', 'ð'=>'o', 'ñ'=>'n', 'ò'=>'o', 'ó'=>'o',
						'ô'=>'o', 'õ'=>'o', 'ö'=>'o', 'ø'=>'o', 'ù'=>'u', 'ú'=>'u', 'û'=>'u', 'ý'=>'y', 'ý'=>'y', 'þ'=>'b',
						'ÿ'=>'y', 'Ŕ'=>'R', 'ŕ'=>'r', '/' => '-', ' ' => '-', '.' => ''
		);

		$stripped = preg_replace( array( '/\s{2,}/', '/[\t\n]/' ), ' ', $txt );
		return strtolower( strtr( $txt, $table ) );
}

	public static function formatSize($size) {
		$sizes = array(' Bytes', ' KB', ' MB', ' GB', ' TB', ' PB', ' EB', ' ZB', ' YB');
		if ($size == 0) {
			return('n/a');
		} else {
			return (round($size/pow(1024, ($i = floor(log($size, 1024)))), $i > 1 ? 2 : 0) . $sizes[$i]);
		}
	}

		public static function revision() {
		$file = file(Cana::config()->dirs->root.'.hg/branchheads.cache');
		$file = explode(' ',$file[0]);
		return trim($file[1]);
		}

	public static function relativeTime($timestamp, $timezoneTO = null, $timezoneFROM = null) {
		if (!$timezoneFROM) {
//			$timezoneFROM = new DateTimeZone('utc');
			$timezoneFROM = c::config()->timezone;
		}

		if ($timezone) {
			$d = new DateTime($timestamp, $timezoneFROM);
			$d->setTimezone($timezoneTO);
			$t = new DateTime('now', $timezoneFROM);
			$t->setTimezone($timezoneTO);

		} else {
			$d = new DateTime($timestamp);
			$t = new DateTime();
		}

		/*
		$interval = $d->diff($t);
		$difference = $interval->format('%y %m %d %h %i %s');
		return $difference;
		*/

		$difference = $t->getTimestamp() - $d->getTimestamp();

		$periods = ['sec', 'min', 'hour', 'day', 'week', 'month', 'year', 'decade'];
		$lengths = ['60','60','24','7','4.35','12','10'];

		if ($difference > 0) { // this was in the past
			$ending = 'ago';
		} else { // this was in the future
			$difference = -$difference;
			$ending = 'to go';
		}
		for($j = 0; $difference >= $lengths[$j]; $j++) {
			$difference /= $lengths[$j];
		}
		$difference = round($difference);
		if ($difference != 1) {
			$periods[$j].= 's';
		}
		$text = $difference.' '.$periods[$j].' '.$ending;

		return $text;
	}

	public static function truncateByLines($string, $maxlines = 3) {
		$retVals = array();
		$string = explode("\n",trim($string));
		for ($x = 0; $x < $maxlines; $x++) {
			if (isset($string[$x])) {
				$retVals[] = $string[$x];
			}
		}
		return implode("\n",$retVals);
	}

	public static function truncateByWord($string, $length = 100, $suffix = '&hellip;') {
		if (strlen($string) > $length) {
			$string = explode(' ', $string);
			$newString = '';
			foreach ($string as $piece) {
				if (strlen($newString.' '.$piece) <= $length) {
					$newString .= ' '.$piece;
				} else {
					break;
				}
			}
			$string = trim($newString).$suffix;
		}
		return $string;

	}

	public function relativeTimeTz($ts, $tz) {

	}

	public function dateTimeRep($datetime, $timezome, $format = 'M j, g:i a') {
		$d = new DateTime($datetime_str, new DateTimeZone('utc'));
		$d->setTimezone($rep_timezone);
		return $d->format($format);
	}

	public static function format_phone($phone) {
		$phone = preg_replace('/[^\dx]/i', '', $phone);
		if(preg_match('/^(\d{3})(\d{3})(\d{4})$/', $phone, $m)) {
			return "($m[1]) $m[2]-$m[3]";
		}
		else {
			return $phone;
		}
	}

	public static function format_price($price) {
		// $price is a number, dollars
		// returns a string prefixed with '$' suitable for display
		return money_format('$%i', $price);
	}

}