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<?php
/**
* File name: QuestionHelper.php
* Last modified: 14/06/21, 5:27 PM
* Author: NearCraft - https://codecanyon.net/user/nearcraft
* Copyright (c) 2021
*/
if(!function_exists('formatQuestionProperty')) {
/**
* Format Question for the Exam
* @param $question
* @param $qType
* @return null|string|string[]
*/
function formatQuestionProperty($question, $qType) {
if($qType == "FIB") {
return replaceBlanksWithPlaceholder($question);
}
return $question;
}
}
if(!function_exists('formatOptionsProperty')) {
/**
* Format Options for the Exam
* @param $options
* @param $qType
* @param $question
* @return array|int
*/
function formatOptionsProperty($options, $qType, $question) {
$newOptions = [];
switch($qType) {
case "MTF":
$leftOptions = [];
$rightPairs = [];
$matches = [];
$pairs = [];
foreach ($options as $key => $option) {
array_push($leftOptions, $option['option']);
array_push($rightPairs, $option['pair']);
}
foreach ($leftOptions as $key => $option) {
array_push($matches, ['id' => md5(config('qwiktest.matching_option_salt').$key), 'value' => $option]);
}
foreach ($rightPairs as $key => $pair) {
array_push($pairs, ['id' => md5(config('qwiktest.matching_pair_salt').$key), 'value' => $pair, 'code' => '']);
}
shuffle($pairs);
foreach ($pairs as $key => &$pair) {
$pair['code'] = covertToCharacter($key);
}
$newOptions['matches'] = $matches;
$newOptions['pairs'] = $pairs;
return $newOptions;
break;
case "SAQ":
case "LAQ":
return [];
break;
case "FIB":
return count(getBlankItems($question));
break;
case "ORD":
foreach ($options as $key => $option) {
array_push($newOptions, ['id' => md5(config('qwiktest.ordering_option_salt').$key), 'value' => $option['option'], 'code' => '']);
}
shuffle($newOptions);
foreach ($newOptions as $key => &$option) {
$option['code'] = covertToCharacter($key);
}
return $newOptions;
break;
default:
foreach ($options as $option) {
array_push($newOptions, $option['option']);
}
return $newOptions;
break;
}
}
}
if(!function_exists('formatAnswerProperty')) {
/**
* Format Answer Property for the Exam
* @param $qType
* @return array|string
*/
function formatAnswerProperty($qType) {
switch($qType) {
case "MMA":
case "MTF":
case "FIB":
case "ORD":
return [];
break;
case "SAQ":
case "LAQ":
default:
return '';
break;
}
}
}
if(!function_exists('validateMSA')) {
/**
* Validate Multiple Choice Single Answer & True or False Questions
* @param $correctAnswer
* @param $userResponse
* @return bool
*/
function validateMSA($correctAnswer, $userResponse) {
if((int) $userResponse == (int) $correctAnswer) {
return true;
}
return false;
}
}
if(!function_exists('validateMMA')) {
/**
* Validate Multiple Choice Multiple Answer Question
* @param $correctAnswer
* @param $userResponse
* @return bool
*/
function validateMMA($correctAnswer, $userResponse) {
$x = array_values($userResponse);
$y = array_values($correctAnswer);
sort($x);
sort($y);
if($x == $y) {
return true;
}
return false;
}
}
if(!function_exists('validateFIB')) {
/**
* Validate Fill in the Blank Question
* @param $correctAnswer
* @param $userResponse
* @return bool
*/
function validateFIB($correctAnswer, $userResponse) {
$x = array_values($userResponse);
$y = array_values($correctAnswer);
$x = array_map( 'strtolower', $x );
$y = array_map( 'strtolower', $y );
if($x == $y) {
return true;
}
return false;
}
}
if(!function_exists('validateMTF')) {
/**
* Validate Match The Following Question
* @param $options
* @param $userResponse
* @param bool $answerFlag
* @return array|bool
*/
function validateMTF($options, $userResponse, $answerFlag = false) {
$correctMatch = [];
$responseMatch = [];
foreach ($options as $key => $option) {
array_push($correctMatch, md5(config('qwiktest.matching_pair_salt').$key));
}
foreach ($userResponse as $item) {
if(is_array($item)) {
array_push($responseMatch, $item['id']);
} else {
$object = json_encode($item, true);
array_push($responseMatch, $object['id']);
}
}
$x = array_values($correctMatch);
$y = array_values($responseMatch);
if($answerFlag) {
return $correctMatch;
}
if($x == $y) {
return true;
}
return false;
}
}
if(!function_exists('validateSAQ')) {
/**
* @param $options
* @param $userResponse
* @return bool
*/
function validateSAQ($options, $userResponse) {
$possibleAnswers = [];
foreach ($options as $option) {
array_push($possibleAnswers, $option['option']);
}
if (in_array($userResponse, $possibleAnswers))
{
return true;
}
return false;
}
}
if(!function_exists('validateORD')) {
/**
* Validate Sequence Question
* @param $options
* @param $userResponse
* @return bool
*/
function validateORD($options, $userResponse, $answerFlag = false) {
$correctOrder = [];
$responseOrder = [];
foreach ($options as $key => $option) {
array_push($correctOrder, md5(config('qwiktest.ordering_option_salt').$key));
}
foreach ($userResponse as $item) {
if(is_array($item)) {
array_push($responseOrder, $item['id']);
} else {
$object = json_decode($item, true);
array_push($responseOrder, $object['id']);
}
}
$x = array_values($correctOrder);
$y = array_values($responseOrder);
if($answerFlag) {
return $correctOrder;
}
if($x == $y) {
return true;
}
return false;
}
}
if(!function_exists('formatImportOptionsProperty')) {
/**
* Format Options when Importing Questions
* @param $options
* @param $qType
* @return array|int
*/
function formatImportOptionsProperty($options, $qType) {
$newOptions = [];
if($qType == "FIB" || $qType == "LAQ") {
return $newOptions;
}
if($qType == "TOF") {
return [
['option' => strval($options[0]), 'partial_weightage' => 0],
['option' => strval($options[1]), 'partial_weightage' => 0]
];
}
if($qType == "MTF") {
foreach ($options as $option) {
if($option != null || $option != "") {
$match = explode (",", $option);
array_push($newOptions, ['option' => strval($match[0]), 'pair' => strval($match[1]), 'partial_weightage' => 0]);
}
}
return $newOptions;
}
foreach ($options as $option) {
if($option != null || $option != "") {
array_push($newOptions, ['option' => strval($option), 'partial_weightage' => 0]);
}
}
return $newOptions;
}
}
if(!function_exists('formatImportAnswerProperty')) {
/**
* Format Answer Property when Importing Questions
* @param $correctAnswer
* @param $qType
* @param $question
* @return array|string
*/
function formatImportAnswerProperty($correctAnswer, $qType, $question) {
switch($qType) {
case "MMA":
$correctAnswers = [];
$answers = explode (",", $correctAnswer);
foreach ($answers as $answer) {
array_push($correctAnswers, $answer);
}
return $correctAnswers;
break;
case "MTF":
case "ORD":
return [];
break;
case "SAQ":
case "LAQ":
return '';
break;
case "FIB":
return getBlankItems($question);
break;
default:
return $correctAnswer;
break;
}
}
}
if(!function_exists('formatImportPreferencesProperty')) {
/**
* Format Preferences Property when Importing Questions
* @param $qType
* @return array|string
*/
function formatImportPreferencesProperty($qType) {
switch($qType) {
case "LAQ":
return ['word_limit' => false, 'max_words' => 0, 'min_words' => 0];
break;
case "FIB":
return ['case_sensitive' => false];
break;
default:
return null;
break;
}
}
}
if(!function_exists('replaceBlanksWithPlaceholder')) {
/**
* Function to replace Fill in the Blank question blanks with placeholder
* @param $text
* @return null|string|string[]
*/
function replaceBlanksWithPlaceholder($text) {
return preg_replace_callback(
"/(##)(.*?)(##)/",
function($m) {
static $id = 0;
$id++;
return "[".$id."] "."______";
},
$text);
}
}
if(!function_exists('replaceBlanksWithContent')) {
/**
* Function to replace Fill in the Blank question blanks with content
* @param $text
* @return null|string|string[]
*/
function replaceBlanksWithContent($text) {
return preg_replace_callback( '/(\_\_\_\_\_\_)/', function($match) use( &$blank_contents) {
return '##'.array_shift( $blank_contents).'##';
}, $text);
}
}
if(!function_exists('replaceBlanksWithInput')) {
/**
* Function to replace Fill in the Blank question blanks with text input
* @param $text
* @return null|string|string[]
*/
function replaceBlanksWithInput($text) {
return preg_replace("/(##)(.*?)(##)/", "<input type='text' />", $text);
}
}
if(!function_exists('getBlankItems')) {
/**
* function to get blank values from the Fill in the Blank Question
* @param $str
* @return array
*/
function getBlankItems($str) {
$startDelimiter = "##";
$endDelimiter = "##";
$contents = array();
$startDelimiterLength = strlen($startDelimiter);
$endDelimiterLength = strlen($endDelimiter);
$startFrom = $contentStart = $contentEnd = 0;
while (false !== ($contentStart = strpos($str, $startDelimiter, $startFrom))) {
$contentStart += $startDelimiterLength;
$contentEnd = strpos($str, $endDelimiter, $contentStart);
if (false === $contentEnd) {
break;
}
$contents[] = substr($str, $contentStart, $contentEnd - $contentStart);
$startFrom = $contentEnd + $endDelimiterLength;
}
return $contents;
}
}
if(!function_exists('covertToCharacter')) {
/**
* Converts Numeric into Character for Question Options
* @param $value
* @return string
*/
function covertToCharacter($value) {
$characters = ['A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J'];
return $characters[$value];
}
}