<?php 
			
	require_once 'processes/config.php';
	require_once 'processes/dbh.inc.php';
	require_once 'processes/checkLogin.php';
	
	/* THIS SCRIPT POPULATES THE CALENDAR WITH THE EXPERIENCE'S EVENTS */
	
/*	
	function chooseColor($string) {
	
		// Define color palette...
		$colors = [
			'#0074D9',
			'#7FDBFF',
    		'#39CCCC',
    		'#A4262C', // red
    		'#CA5010', // orange
    		'#8F7034', // gold
    		'#407855', // green
    		'#038387', // teal
    		'#0078D4', // blue
    		'#40587C', // dark blue
    		'#4052AB', // indigo
    		'#854085', // plum
    		'#8764B8', // purple
    		'#737373', // cool grey
    		'#867365'  // warm grey
		];
		
		$hash = substr(sha1($string), 0, 10);
		$colorIndex = hexdec($hash) % count($colors);
		
		return $colors[$colorIndex];
	
	}
*/
	
	if(isset($_POST['experienceID'])) {
		
		
		// Extract experience ID and use it to retrieve the experience, moments, etc.
		$experienceID = mysqli_real_escape_string($connection, trim($_POST['experienceID']));
		
		
		// Check that experienceID is not an empty string
		// And that experienceID is in the database
		if($experienceID === "") {
			http_response_code(400);
			echo json_encode(array("error" => "Please specify experience ID."));
			exit();
		} else if(!mysqli_query($connection, "SELECT * FROM experience WHERE id = '$experienceID';")) {
			http_response_code(400);
			echo json_encode(array("error" => "Given experience ID ($experienceID) not in database."));
			exit();
		}
		
		
		// Set the plugins of FullCalendar.io
		$plugins = array('dayGrid', 'timeGrid', 'interaction');
		$calendarConfig = new stdClass();
		$calendarConfig->plugins = $plugins;
	
	
		// Set the headers of FullCalendar.io
		$header->left = 'prev,next today';
		$header->center = 'title';
		$header->right = 'dayGridMonth,timeGridWeek,timeGridDay';
		$calendarConfig->header = $header;

	
		// Get the start date of the experience...
		$queryExperience = "SELECT * FROM experience WHERE id = '$experienceID';";
		$resultExperience = mysqli_query($connection, $queryExperience);
		$rowExperience = mysqli_fetch_assoc($resultExperience);
		$calendarConfig->defaultDate = $rowExperience['start_date'];
		
		
		// Add the start and end dates of the experience as background color...
		$startDate = new stdClass();
		$startDate->start = $rowExperience['start_date'];
		$startDate->end = $rowExperience['start_date'];
		$startDate->overlap = true;
		$startDate->rendering = 'background';
		$startDate->color = '#ff9f89';
		$events[] = $startDate;
		
		$endDate = new stdClass();
		$endDate->start = $rowExperience['end_date'];
		$endDate->end = $rowExperience['end_date'];
		$endDate->overlap = true;
		$endDate->rendering = 'background';
		$endDate->color = '#ff9f89';
		$events[] = $endDate;
		
		
		// Create a new event for each moment
		$queryMoments = "SELECT SQ.* FROM subquestionnair AS SQ JOIN experience_subquestionnair AS ES WHERE SQ.id = ES.id_subquestionnair AND ES.id_experience = '$experienceID';";
// 		$queryMoments = "SELECT * FROM `subquestionnair` WHERE id_questionnair IN (SELECT id_questionnair FROM `experience_questionnair` WHERE id_experience = '$experienceID');";
		$resultMoments = mysqli_query($connection, $queryMoments);
		while($rowMoments = mysqli_fetch_assoc($resultMoments)) {
		
			// Create a new moment object that will contain the title, start date and end date...
			$moment = new stdClass();
			$moment->id = $rowMoments['id'] . '-moment';
			$moment->title = $rowMoments['title'];
			$moment->start = $rowMoments['date_to_administer'];//explode(" ", $rowMoments['date_to_administer'])[0];
			
			// Compute end with expiry_time from experience...
			$computedEndTimestamp = strtotime($rowMoments['date_to_administer'] . ' + ' . $rowExperience['expiry_time'] .' minutes');
			$moment->end = date('Y-m-d H:i:s', $computedEndTimestamp);
			
			// Add the remaining properties...
			$moment->durationEditable = false;
			$moment->color = '#40587C';//chooseColor($rowMoments['id_questionnair']);
			
			// Append the moment to the $events array
			$events[] = $moment;
			
		}
		
		
		// Create a new event for each milestone
		$queryMilestones = "SELECT * FROM `milestone` WHERE id_experience = '$experienceID';";
		$resultMilestones = mysqli_query($connection, $queryMilestones);
		while($rowMilestones = mysqli_fetch_assoc($resultMilestones)) {
			
			// Create a new milestone object that will contain the title, start date and end date...
			$milestone = new stdClass();
			$milestone->id = $rowMilestones['id'] . '-milestone';
			$milestone->title = $rowMilestones['title'];
			$milestone->start = $rowMilestones['date'];
			$milestone->end = $rowMilestones['date'];
			$milestone->durationEditable = false;
			$milestone->color = '#A4262C';//chooseColor($row['id_experience']);
			
			// Append the milestone to the $events array
			$events[] = $milestone;
			
		}
		
		
		// Finally include all events...
		$calendarConfig->events = $events;
		
		
		// Other settings...
// 		$calendarConfig->navLinks = true;
		$calendarConfig->businessHours = true;
		$calendarConfig->editable = true;
		
	
		echo json_encode($calendarConfig);

	}
	
/*


		var calendarConfig = {
				plugins: [ 'dayGrid', 'timeGrid' ],
				header: {
					left: 'prev,next today',
					center: 'title',
					right: 'dayGridMonth,timeGridWeek,timeGridDay'
				},
				events: [
					{
						title: 'Halloween',
						start: '2019-10-31',
						end: '2019-10-31',
						color: 'orange'
					},
					{
						title: 'Veteran\'s Day',
						start: '2019-11-11',
						end: '2019-11-11',
						color: 'blue'
					},
					{
						title: 'Reunión con Corrada',
						start: '2019-11-08',
						end: '2019-11-08',
						color: 'red'
					}
				]
			};
			

*/


?>