<?php

/**
 *
 */
class Utilities
{
	static function cleanString($text)
	{
		$utf8 = array(
			'/[áàâãªä]/u'   =>   'a',
			'/[ÁÀÂÃÄ]/u'    =>   'A',
			'/[ÍÌÎÏ]/u'     =>   'I',
			'/[íìîï]/u'     =>   'i',
			'/[ěéèêë]/u'     =>   'e',
			'/[ĚÉÈÊË]/u'     =>   'E',
			'/[óòôõºö]/u'   =>   'o',
			'/[ÓÒÔÕÖ]/u'    =>   'O',
			'/[úùûü]/u'     =>   'u',
			'/[ÚÙÛÜ]/u'     =>   'U',
			'/Š/'     		=>   'S',
			'/š/'     		=>   's',
			'/Č/'     		=>   'C',
			'/č/'     		=>   'c',
			'/ř/'     		=>   'r',
			'/Ř/'     		=>   'R',
			'/Ý/'     		=>   'Y',
			'/ý/'     		=>   'y',
			'/ç/'           =>   'c',
			'/Ç/'           =>   'C',
			'/ñ/'           =>   'n',
			'/Ñ/'           =>   'N',
			'/–/'           =>   '-', // UTF-8 hyphen to "normal" hyphen
			'/[’‘‹›‚]/u'    =>   ' ', // Literally a single quote
			'/[“”«»„]/u'    =>   ' ', // Double quote
			'/ /'           =>   ' ', // nonbreaking space (equiv. to 0x160)
		);
		return preg_replace(array_keys($utf8), array_values($utf8), $text);
	}

	static function stringInsert($str, $insertstr, $pos)
	{
		$str = substr($str, 0, $pos) . $insertstr . substr($str, $pos);
		return $str;
	}

	/**
	 * [generateGraphJson description]
	 * @param  string $type    [line/bar]
	 * @param  array  $data    [description]
	 * @param  array  $options [description]
	 * @return [type]          [description]
	 */

	static function generateGraphJson(string $type = 'line', array $data = [], array $options = [])
	{
		$array = [
			'type' => $type,
			'data' => [
				'datasets' => [
					[
						'data' => $data,
						'borderColor' => "#d4def7",
						'backgroundColor' => "#d4def7"
					]
				]
			],
			'options' => [
				'scales' => [
					'xAxes' => [
						[
							'type' => 'time',
							'distribution' => 'linear',
						]
					],
					'yAxes' => [
						[
							'ticks' => [
								'min' => $options['min'],
								'max' => $options['max'],
								'steps' => $options['scale']
							]
						]
					]
				],
				'legend' => [
					'display' => false
				],
				'tooltips' => [
					'enabled' => true
				],
				'hover' => [
					'mode' => true
				]
			]
		];
		return json_encode($array, JSON_PRETTY_PRINT);
	}

	static function ago($datetime)
	{
		$interval = date_create('now')->diff($datetime);
		$suffix = ($interval->invert ? ' ago' : '');
		if ($v = $interval->y >= 1) return self::pluralize($interval->m, 'month') . $suffix;
		if ($v = $interval->d >= 1) return self::pluralize($interval->d, 'day') . $suffix;
		if ($v = $interval->h >= 1) return self::pluralize($interval->h, 'hour') . $suffix;
		if ($v = $interval->i >= 1) return self::pluralize($interval->i, 'minute') . $suffix;
		return self::pluralize($interval->s, 'second') . $suffix;
	}

	static function pluralize($count, $text)
	{
		return $count . (($count == 1) ? (" $text") : (" ${text}s"));
	}

	static function checkOperator($value1, $operator, $value2)
	{
		switch ($operator) {
			case '<': // Less than
				return $value1 < $value2;
			case '<=': // Less than or equal to
				return $value1 <= $value2;
			case '>': // Greater than
				return $value1 > $value2;
			case '>=': // Greater than or equal to
				return $value1 >= $value2;
			case '==': // Equal
				return ($value1 == $value2);
			case '===': // Identical
				return $value1 === $value2;
			case '!==': // Not Identical
				return $value1 !== $value2;
			case '!=': // Not equal
			case '<>': // Not equal
				return $value1 != $value2;
			case '||': // Or
			case 'or': // Or
				return $value1 || $value2;
			case '&&': // And
			case 'and': // And
				return $value1 && $value2;
			case 'xor': // Or
				return $value1 xor $value2;
			default:
				return FALSE;
		} // end switch
	}

	static function CallAPI($method, $url, $data = false)
	{
		$curl = curl_init();

		switch ($method) {
			case "POST":
				curl_setopt($curl, CURLOPT_POST, 1);

				if ($data)
					curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
				break;
			case "PUT":
				curl_setopt($curl, CURLOPT_PUT, 1);
				break;
			default:
				if ($data)
					$url = sprintf("%s?%s", $url, http_build_query($data));
		}

		// Optional Authentication:
		curl_setopt($curl, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
		//curl_setopt($curl, CURLOPT_USERPWD, "username:password");

		curl_setopt($curl, CURLOPT_URL, $url);
		curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);

		$result = curl_exec($curl);

		curl_close($curl);

		return $result;
	}

	/**
	 * Sort Array by keys
	 *
	 * @param array $data
	 * @param [type] $key
	 * @param string $operator ('asc'/'desc')
	 * @return void
	 */
	static function sortArrayByKey($data = [], $key, $operator = "asc"){
		if ($operator == "asc")
		{
			uasort($data, function($a, $b) use ($key){
				if ($a[$key] == $b[$key]) return 0;
				return ($a[$key] < $b[$key]) ? -1 : 1;
			});
		} else{
			uasort($data, function($a, $b) use ($key){
				if ($a[$key] == $b[$key]) return 0;
				return ($a[$key] > $b[$key]) ? -1 : 1;
			});
		}
		return $data;
		
	}
}