<?php

class TestReport {

	private $__testName = "";
	private $__goal = "";
	private $__testLabel = "";
	private $__start = 0;
	private $__end = 0;
	private $__steps = [];

	function __construct($testName, $urlSafeName) {

		$this->__testName = $testName;
		$this->__testLabel = $urlSafeName;
		$this->__start = microtime(true);
	}

	public function goal($goalStr) {
		$this->__goal = $goalStr;
	}

	public function stepFinish($name, $result) {
		$this->__steps[$this->__sanitizeLeadingNumber($name)] = $result;
	}

	public function writeReport($summary) {
		$this->__end = microtime(true);

		$f = fopen($this->__testLabel . '.tex', "w");
		fwrite($f, '\chapter{' . $this->__texT($this->__sanitizeLeadingNumber($this->__testName)) . '}');
		fwrite($f, '\label{' . $this->__texL($this->__testLabel) . $this->randomStr() . '}' . PHP_EOL);
		fwrite($f, PHP_EOL);

		fwrite($f, '\begin{longtable}[c]{@{}lllll@{}}' . PHP_EOL);
		fwrite($f, '\toprule\addlinespace' . PHP_EOL);
		fwrite($f, 'Time & Duration & Passes & Failures & Skips' . PHP_EOL); // headers
		fwrite($f, '\\\\\addlinespace' . PHP_EOL);
		fwrite($f, '\midrule\endhead' . PHP_EOL);
		date_default_timezone_set('Europe/Amsterdam');
		$durationMs = round(($this->__end - $this->__start) * 1000, 2);
		fwrite($f, date('c', $this->__start) . ' & '.$durationMs.' ms & '.$summary['pass'].' & '.$summary['fail'].' & ' . $summary['skip'] . PHP_EOL); // values
		fwrite($f, '\\\\\addlinespace' . PHP_EOL);
		fwrite($f, '\bottomrule' . PHP_EOL);
		fwrite($f, '\end{longtable}' . PHP_EOL);
		fwrite($f, PHP_EOL);
		fwrite($f, PHP_EOL);

		if (strlen($this->__goal)) {
			fwrite($f, '\\begin{flushleft}' . PHP_EOL);
			fwrite($f, '\\textbf{Goal:} \\\\'.PHP_EOL);
			fwrite($f, $this->__texT(iconv("UTF-8", "ASCII//TRANSLIT", $this->__goal)));
			fwrite($f, '\\end{flushleft}' . PHP_EOL);
			fwrite($f, PHP_EOL);
		}

		fwrite($f, '\begin{longtable}{p{380pt} p{50pt}}' . PHP_EOL);
		fwrite($f, '\toprule\addlinespace' . PHP_EOL);
		fwrite($f, 'Test & Result' . PHP_EOL);
		fwrite($f, '\\\\\addlinespace' . PHP_EOL);
		fwrite($f, '\midrule\endhead' . PHP_EOL);
		foreach ($this->__steps as $step => $result) {
			fwrite($f, $this->__texT(iconv("UTF-8", "ASCII//TRANSLIT", $step)));
			fwrite($f, ' & ');
			if ($result) {
				fwrite($f, '\PASS{[PASS]}' . PHP_EOL);
			} else {
				fwrite($f, '\FAIL{[FAIL]}' . PHP_EOL);
			}
			fwrite($f, '\\\\ \hline \addlinespace' . PHP_EOL);// \addlinespace' . PHP_EOL);
		}

		fwrite($f, '\bottomrule' . PHP_EOL);
		fwrite($f, '\end{longtable}' . PHP_EOL);
		if (file_exists('report.tex')) {
			$t = file_get_contents('report.tex');
		} else {
			$t = '% Report generated by ditest-php at ' . date('c') . PHP_EOL;
		}
		$file = getcwd() . '/' . $this->__testLabel . '.tex';
		if (strpos($t, $file) === false) {
			$t .= '\input{\detokenize{' . getcwd() . '/' . $this->__testLabel . '.tex}}' . PHP_EOL;
			file_put_contents('report.tex', $t);
		}
	}
/**
 * Texify Text
 */
	private function __texT($txt) {
		return str_replace(['_', '&'], ['\_', '\&'], $txt);
	}

	private function __texL($txt) {
		return str_replace(["_", '-', '.', ',', '&'], "", $txt);
	}

	private function __sanitizeLeadingNumber($str) {
		return trim(preg_replace('/^([0-9x\.]*) /', '', $str));
	}

	private function randomStr($length = 5) {
		$characters = '0123456789abcdefghijklmnopqrstuvwxyz';
		$charactersLength = strlen($characters);
		$randomString = '';
		for ($i = 0; $i < $length; $i++) {
			$randomString .= $characters[rand(0, $charactersLength - 1)];
		}
		return $randomString;
	}

}