<?php
session_start();

if (empty($_SESSION['miter'])) {
    header('Location: ../../index.php');
    exit;
}

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    
    $raw_filename = $_POST['filename'] ?? '';
    $filename = basename($raw_filename);

    if (!empty($filename) && preg_match('/^[a-zA-Z0-9_-]+$/', $filename)) {
        
        $miter_file = "../../miters/{$filename}.txt";

        $raw_miter = $_POST['miter'] ?? '';
        $miter_post = str_replace(["\r\n", "\r", "\n"], "<br>", trim($raw_miter));

        $raw_link = trim($_POST['url'] ?? '');
        
        if (strpos($raw_link, "Link, Image or Video") !== false) {
            $miter_url = "";
        } else {
            $miter_url = str_replace("&", "%26", $raw_link);
        }

        $img_path = trim($_POST['img'] ?? '');
        $keywords = ''; // retired
        $o_date   = trim($_POST['odate'] ?? '');
        $g_date   = trim($_POST['gdate'] ?? '');
        
        $u_date   = date("Y-m-d H:i:s");

        $miter_data_array = [
            $miter_post,
            $miter_url,
            $img_path,
            $keywords,
            $o_date,
            $g_date,
            $u_date
        ];

        $miter_data = implode("\n", $miter_data_array);

        file_put_contents($miter_file, $miter_data, LOCK_EX);
    }
}

header("Location: ../../index.php");
exit;
?>