<?php 

	require_once 'config.php';
	require_once 'dbh.inc.php';
	require_once 'checkLogin.php';	
	
	// EXAMPLE INPUT...
	// array(3) { ["fromQuestionnaireID"]=> string(1) "1" ["toExperienceID"]=> string(1) "11" ["duplicateQuestionnaire"]=> string(1) "" }

	if(isset($_POST['duplicateQuestionnaire'])) {
	
	
		/*** FETCH INPUT ***/
		// WARNING: SHOULD VERIFY IF THESE ACTUALLY EXIST
		$fromQuestionnaireID = mysqli_real_escape_string($connection, $_POST['fromQuestionnaireID']);
		$toExperienceID = mysqli_real_escape_string($connection, $_POST['toExperienceID']);
		
		
		/*** FETCH THE QUESTIONNAIRE INFO ***/
		$queryOldQuestionnaire = "SELECT * FROM questionnair WHERE id = $fromQuestionnaireID";
		$resultOldQuestionnaire = mysqli_query($connection, $queryOldQuestionnaire) or die("Error: Couldn't fetch questionnaire info from given ID<br>".mysqli_error($connection));
		$rowOldQuestionnaire = mysqli_fetch_assoc($resultOldQuestionnaire);
		
		
		/*** DUPLICATE QUESTIONNAIRE, RETRIEVE ITS ID (TO USE IT IN TABLES experience_questionnair AND questionnair_question) AND HOOK TO CURRENT EXPERIENCE ***/
		$queryQuestionnaire = "INSERT INTO questionnair (`q_title`, `description`) VALUES ('".$rowOldQuestionnaire['q_title']."', '".$rowOldQuestionnaire['description']."');";
		if(!mysqli_query($connection, $queryQuestionnaire)) {
			echo $queryQuestionnaire . "<br>";
			die("Error: Couldn't create questionnaire<br>".mysqli_error($connection));
		}

		$questionnaireID = mysqli_insert_id($connection) or die("Error: Couldn't fetch questionnaire id after creating it<br>".mysqli_error($connection));

		$queryHookQuestionnaireToExperience = "INSERT INTO experience_questionnair (`id_experience`, `id_questionnair`) VALUES ('".$toExperienceID."', '".$questionnaireID."');";
		if(!mysqli_query($connection, $queryHookQuestionnaireToExperience)) {
			echo $queryHookQuestionnaireToExperience . "<br>";
			die("Error: Couldn't hook questionnaire to experience<br>".mysqli_error($connection));
		}


// WE DON'T NEED TO INSERT A NEW REFERENCE, WE JUST NEED TO DUPLICATE THE QUESTIONS (WHICH HAVE THE REFERENCE ID ALREADY)
// WE DON'T NEED TO CREATE THE NEW CATEGORIES, WE JUST NEED TO DUPLICATE THE QUESTIONS (WHICH HAVE THE CATEGORY ID ALREADY)
// WE DON'T NEED TO CREATE THE NEW SUBCATEGORIES, WE JUST NEED TO DUPLICATE THE QUESTIONS (WHICH HAVE THE SUBCATEGORY ID ALREADY)


		$queryForQuestions = "SELECT id_question FROM questionnair_question WHERE id_questionnair = $fromQuestionnaireID;";
		$resultForQuestions = mysqli_query($connection, $queryForQuestions);
		
		/*** CREATE QUESTIONS ONE BY ONE, RETRIEVE THEIR RESPECTIVE IDs (TO USE IN TABLES question_type AND questionnair_question), ENTER THE MIN/MAX VALUES/TEXTS, AND HOOK QUESTION TO QUESTIONNAIR ***/
		while($rowForQuestions = mysqli_fetch_assoc($resultForQuestions)) {
			
			
			// FETCH THE INFO FOR A GIVEN QUESTION
			$queryOldQuestion = "SELECT * FROM question WHERE id = " . $rowForQuestions['id_question'];
			$resultOldQuestion = mysqli_query($connection, $queryOldQuestion);
			$rowOldQuestion = mysqli_fetch_assoc($resultOldQuestion);
			
			
			// DUPLICATE QUESTION
			$queryQuestion = "INSERT INTO question (`premise`, `id_category`, `id_subcategory`, `id_type`, `id_referencia`) VALUES ('".mysqli_real_escape_string($connection, $rowOldQuestion['premise'])."', '".$rowOldQuestion['id_category']."', '".$rowOldQuestion['id_subcategory']."', '".$rowOldQuestion['id_type']."', '".$rowOldQuestion['id_referencia']."');";
			if(!mysqli_query($connection, $queryQuestion)) {
				echo $queryQuestion . "<br>";
				die("Error: Couldn't duplicate question with id ".$rowForQuestions['id_question']."<br>".mysqli_error($connection));
			}
			
			// FETCH DUPLICATE QUESTION ID
 			$questionID = mysqli_insert_id($connection) or die("Error: Couldn't fetch new question id (from old question id ".$rowForQuestions['id_question'].")<br>".mysqli_error($connection));


			// IF QUESTION IS SCALED, DUPLICATE MIN/MAX VALUES/TEXT
			if($rowOldQuestion['id_type'] == '1') {
			
			
				// FETCH THE QUESTION TYPES FOR A GIVEN QUESTION
				$queryOldQuestionTypes = "SELECT * FROM question_type WHERE id_question = " . $rowForQuestions['id_question'];
				$resultOldQuestionTypes = mysqli_query($connection, $queryOldQuestionTypes);
				
				
				// LOOP THROUGH ALL QUESTION TYPES 
				while($rowOldQuestionTypes = mysqli_fetch_assoc($resultOldQuestionTypes)) {
					
					$queryMinVal = "INSERT INTO question_type (`id_type`, `id_question`, `label`, `value`) VALUES ('".$rowOldQuestionTypes['id_type']."', '".$questionID."', '".$rowOldQuestionTypes['label']."', '".$rowOldQuestionTypes['value']."');";
					if(!mysqli_query($connection, $queryMinVal)) {
						echo $queryMinVal . "<br>";
						die("Error: Couldn't duplicate question ".$rowOldQuestionTypes['label']." (from old question with id ".$rowForQuestions['id_question'].")<br>".mysqli_error($connection));
					}
				
				}

				
			}
			
			$queryHookQuestionToQuestionnaire = "INSERT INTO questionnair_question (`id_questionnair`, `id_question`) VALUES ('".$questionnaireID."', '".$questionID."');";
			if(!mysqli_query($connection, $queryHookQuestionToQuestionnaire)) {
				echo $queryHookQuestionToQuestionnaire . "<br>";
				die("Error: Couldn't hook question to questionnaire  (Question ID: ".$questionID.")<br>".mysqli_error($connection));
			}
		
		}
		
		
		header('Location: ../questionnaires.php');
		exit();


	}


?>