<?php
date_default_timezone_set('Europe/Copenhagen');
$config = require __DIR__ . "/config.php";
function x($s){ return htmlspecialchars((string)$s, ENT_XML1 | ENT_QUOTES, "UTF-8"); }
function nice_title($s){ return trim(ucwords(str_replace(['_','-'], ' ', $s))); }
function hidden_video_outputs($config){
    $hidden = [];
    foreach (glob($config['uploads_dir'].'/*', GLOB_ONLYDIR) ?: [] as $dir) {
        if (!is_file($dir . '/.mvlog-hidden')) continue;
        $state = is_file($dir . '/.movmaker-state.json') ? json_decode((string)file_get_contents($dir . '/.movmaker-state.json'), true) : [];
        if (is_array($state) && !empty($state['output'])) $hidden[basename((string)$state['output'])] = true;
    }
    return $hidden;
}
function video_metadata($path){
    $base = pathinfo($path, PATHINFO_FILENAME);
    $meta = ['title'=>nice_title($base),'date'=>date('Y-m-d',filemtime($path)),'location'=>'','description'=>''];
    if (preg_match('/^(\d{4})(\d{2})(\d{2})[_-](.+)$/', $base, $m)) { $meta['date']="$m[1]-$m[2]-$m[3]"; $meta['title']=nice_title($m[4]); }
    $ffprobe = trim((string)shell_exec('command -v ffprobe 2>/dev/null'));
    if ($ffprobe !== '') {
        $json = shell_exec(escapeshellarg($ffprobe).' -v quiet -print_format json -show_entries format_tags '.escapeshellarg($path).' 2>/dev/null');
        $data = json_decode((string)$json, true); $tags = $data['format']['tags'] ?? []; $lower=[];
        foreach($tags as $k=>$v) $lower[strtolower($k)]=$v;
        if(!empty($lower['title'])) $meta['title']=$lower['title'];
        if(!empty($lower['date'])) $meta['date']=$lower['date'];
        foreach(['location','place','com.apple.quicktime.location.name'] as $k) if(!empty($lower[$k])) { $meta['location']=$lower[$k]; break; }
        foreach(['description','synopsis'] as $k) if(!empty($lower[$k])) { $meta['description']=$lower[$k]; break; }
    }
    return $meta;
}
function article_id_is_valid($id){ return is_string($id) && preg_match('/^[0-9]{14}[a-f0-9]{16}$/', $id); }
function read_article_id($dir){ $file=rtrim((string)$dir,'/').'/.mvlog-id'; if(!is_file($file)) return ''; $id=strtolower(trim((string)file_get_contents($file))); return article_id_is_valid($id)?$id:''; }
function slug_from_title($title,$fallback='post'){
    $slug=strtr((string)$title,['æ'=>'ae','Æ'=>'ae','ø'=>'o','Ø'=>'o','å'=>'aa','Å'=>'aa','ä'=>'ae','Ä'=>'ae','ö'=>'oe','Ö'=>'oe','ü'=>'ue','Ü'=>'ue','ß'=>'ss','ẞ'=>'ss','č'=>'c','Č'=>'c','ć'=>'c','Ć'=>'c','ž'=>'z','Ž'=>'z','š'=>'s','Š'=>'s','đ'=>'d','Đ'=>'d']);
    if(function_exists('iconv')){ $ascii=@iconv('UTF-8','ASCII//TRANSLIT//IGNORE',$slug); if($ascii!==false)$slug=$ascii; }
    $slug=strtolower($slug); $slug=preg_replace('/[^a-z0-9]+/','-',$slug)??''; $slug=trim($slug,'-'); return $slug!==''?$slug:$fallback;
}
function title_from_data($dir){ $file=rtrim((string)$dir,'/').'/data.txt'; if(is_file($file)){ foreach(file($file, FILE_IGNORE_NEW_LINES)?:[] as $line){ if(!str_contains($line,':')) continue; [$k,$v]=array_map('trim',explode(':',$line,2)); if(in_array(strtolower($k),['title','name'],true)&&$v!=='') return $v; }} return nice_title(basename((string)$dir)); }
function article_permalink_map($config){ $map=[]; $used=[]; $dirs=glob($config['uploads_dir'].'/*', GLOB_ONLYDIR)?:[]; sort($dirs,SORT_STRING); foreach($dirs as $dir){ if(!is_file($dir.'/.mvlog-permalink')) continue; $id=read_article_id($dir); if($id==='') continue; $base=slug_from_title(title_from_data($dir),$id); $slug=$base; if(isset($used[$slug])) $slug=$base.'-'.substr($id,-6); $n=2; while(isset($used[$slug])){ $slug=$base.'-'.substr($id,-6).'-'.$n; $n++; } $used[$slug]=true; $map[$id]='/post/'.rawurlencode($slug); } return $map; }
function article_permalink_for_video($config,$videoName,$map){ $videoName=basename((string)$videoName); foreach(glob($config['uploads_dir'].'/*', GLOB_ONLYDIR)?:[] as $dir){ if(!is_file($dir.'/.mvlog-permalink')) continue; $stateFile=$dir.'/.movmaker-state.json'; if(!is_file($stateFile)) continue; $state=json_decode((string)file_get_contents($stateFile),true); if(!is_array($state)) continue; if($videoName===basename((string)($state['output']??''))){ $id=read_article_id($dir); return $map[$id]??''; }} return ''; }
$scheme = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off') ? 'https' : 'https';
$host = $_SERVER['HTTP_HOST'] ?? 'bubulescu.org';
$baseUrl = $scheme . '://' . $host . rtrim(dirname($_SERVER['SCRIPT_NAME']), '/');
$hiddenOutputs = hidden_video_outputs($config);
$permalinkMap = article_permalink_map($config);
$videos = array_values(array_filter(glob($config['videos_dir'].'/*.{mp4,webm,mov,m4v}', GLOB_BRACE) ?: [], fn($v)=>empty($hiddenOutputs[basename($v)]) && !preg_match('/_preview\.(mp4|webm|mov|m4v)$/i', basename($v)) && !preg_match('/_preview\.(mp4|webm|mov|m4v)$/i', basename($v))));
usort($videos, fn($a,$b)=>filemtime($b)<=>filemtime($a));
$videos = array_slice($videos,0,20);
header('Content-Type: application/rss+xml; charset=UTF-8');
echo "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
?>
<rss version="2.0">
<channel>
<title>MVLog - Bubulescu.Org</title>
<link><?=x($baseUrl . '/')?></link>
<description>Latest videos from MVLog Bubulescu.Org</description>
<language>en</language>
<lastBuildDate><?=date(DATE_RSS)?></lastBuildDate>
<?php foreach($videos as $v): $name=basename($v); $m=video_metadata($v); $videoUrl=$baseUrl.'/out-dir/'.rawurlencode($name); $articlePath=article_permalink_for_video($config,$name,$permalinkMap); $url=$articlePath!=='' ? ('https://bubulescu.org'.$articlePath) : $videoUrl; $desc=trim(($m['location'] ? $m['location'].'. ' : '').$m['description']); ?>
<item>
<title><?=x($m['title'])?></title>
<link><?=x($url)?></link>
<guid isPermaLink="true"><?=x($url)?></guid>
<pubDate><?=date(DATE_RSS, filemtime($v))?></pubDate>
<description><?=x($desc)?></description>
<enclosure url="<?=x($videoUrl)?>" length="<?=filesize($v)?>" type="video/mp4" />
</item>
<?php endforeach; ?>
</channel>
</rss>