<?php
session_start();

function rrmdir($dir) {
	if (is_dir($dir)) {
		$files = scandir($dir);
		foreach ($files as $file)
			if ($file != "." && $file != "..") rrmdir("$dir/$file");
		rmdir($dir);
	}
	else if (file_exists($dir)) unlink($dir);
}

function rcopy($src, $dst) {
	if (file_exists ( $dst ))
		rrmdir ( $dst );
	if (is_dir ( $src )) {
		mkdir ( $dst );
		$files = scandir ( $src );
		foreach ( $files as $file )
			if ($file != "." && $file != "..")
				rcopy ( "$src/$file", "$dst/$file" );
	} else if (file_exists ( $src ))
		copy ( $src, $dst );
}

if (!isset($_SESSION['username'])) {
	die("You are not logged in.");
}

if ($_POST) {
	$title = $_POST['title'];

	mkdir("../videos/$title");
	$target_dir = "../videos/$title/";
	$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);

	echo $target_file;
	echo "<br>" . $_FILES["fileToUpload"]["name"];
	$uploadOk = 1;
	$imageFileType = strtolower(pathinfo($target_file,PATHINFO_EXTENSION));
	if (file_exists($target_file)) {
		echo "<div class='error'>File already exists.</div><br>";
		$uploadOk = 0;
	}
	// Check file size
	if ($_FILES["fileToUpload"]["size"] > 5000000) {
		echo "<div class='error'>File is too big!</div><br>";
		$uploadOk = 0;
	}
	// Allow certain file formats
	if($imageFileType != "mp4") {
		echo "<div class='error'>Only MP4 files are allowed.</div><br>";
		$uploadOk = 0;
	}
	// Check if $uploadOk is set to 0 by an error
	if ($uploadOk == 0) {
		echo "<div class='error'>Unknown Error.</div><br>";
	// if everything is ok, try to upload file
	} else {
		if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"], $target_file)) {
			rename ("../$title/" . $_FILES["fileToUpload"]["name"], "../$title/$title.mp4");

			echo "<div class='success'>The file <a href='/videos/$title/'" . $_FILES["fileToUpload"]["name"] . "'>". basename( $_FILES["fileToUpload"]["name"]). "</a> has been uploaded.</div><br>";
		} else {
			echo "<div class='error'>There was an error uploading your file.</div><br>";
		}
	}
}
?>