<?php
    session_start();

    if ($_SERVER['REQUEST_METHOD'] == 'POST'){
        if(isset($_POST['content'])){
            $content = $_POST['content'];
            $title = $_POST['title']."\n";
            $date = explode('-', $_POST["date"]);
            $time = explode(':', $_POST['time']);
            $second = date("s");
            $blogname = $_SESSION["blogname"];

            $fileInfo = file("data/".$blogname."/info");
            $unique = substr_replace($fileInfo[0], "", -1);
            $fileInfo[0] = ($unique+1)."\n";
            $fp = fopen("data/".$blogname."/info", "w+");
            flock($fp, LOCK_EX);
            fputs($fp, implode("", $fileInfo));
            flock($fp, LOCK_UN);
            fclose($fp);

            if(strlen($unique) == 1){
                $unique = "0".$unique;
            }

            if(is_uploaded_file($_FILES['file1']['tmp_name'])){
                $extension = strtolower(end(explode('.', $_FILES["file1"]["name"])));
                $target_file = "data/".$blogname."/".$date[0].$date[1].$date[2].$time[0].$time[1].$second.$unique."0.".$extension;
                move_uploaded_file($_FILES["file1"]["tmp_name"], $target_file);
            }

            if(is_uploaded_file($_FILES['file2']['tmp_name'])){
                $extension = strtolower(end(explode('.', $_FILES["file2"]["name"])));
                $target_file = "data/".$blogname."/".$date[0].$date[1].$date[2].$time[0].$time[1].$second.$unique."1.".$extension;
                move_uploaded_file($_FILES["file2"]["tmp_name"], $target_file);
            }

            if(is_uploaded_file($_FILES['file3']['tmp_name'])){
                $extension = strtolower(end(explode('.', $_FILES["file3"]["name"])));
                $target_file = "data/".$blogname."/".$date[0].$date[1].$date[2].$time[0].$time[1].$second.$unique."2.".$extension;
                move_uploaded_file($_FILES["file3"]["tmp_name"], $target_file);
            }

            $contentFile = fopen("data/".$blogname."/".$date[0].$date[1].$date[2].$time[0].$time[1].$second.$unique.".wpis", "w");
            flock($contentFile, LOCK_EX);
            fwrite($contentFile, $title);
            fwrite($contentFile, $content);
            flock($contentFile, LOCK_UN);
            fclose($contentFile);
            unset($_SESSION['blogname']);
        }

        else{
            $username = $_POST['username'];
            $password = $_POST['password'];

            $fileInfo = file("data/userbase");

            foreach($fileInfo as $line){
                $items = explode(';', $line);
                if($username == $items[0] && md5($password) == $items[1]){
                    $_SESSION['blogname'] = substr_replace($items[2], "", -1);

                    header("Location: post.php");
                    exit();
                }
            }
            $_SESSION['msg'] = "Błędna nazwa użytkownika lub hasło. Spróbuj jeszcze raz.";
            header("Location: post.php");
            exit();
        }
    }

    header("Location: blog.php?nazwa=".$blogname);

?>