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<?php
// 1. HEADER WAJIB UNTUK FFMPEG WASM
header("Cross-Origin-Embedder-Policy: require-corp");
header("Cross-Origin-Opener-Policy: same-origin");

// 2. DAFTAR FILE YANG DIBUTUHKAN
$libDir = 'lib/';
if (!is_dir($libDir)) mkdir($libDir, 0777, true);

$files = [
    "ffmpeg.min.js"      => "https://cdnjs.cloudflare.com/ajax/libs/ffmpeg/0.12.15/umd/ffmpeg.min.js",
    "util.min.js"        => "https://cdnjs.cloudflare.com",
    "ffmpeg-core.js"     => "https://unpkg.com",
    "ffmpeg-core.wasm"   => "https://unpkg.com"
];

// 3. AUTO DOWNLOAD LOGIC (CURL -> WGET -> ARIA2)
foreach ($files as $name => $url) {
    $path = $libDir . $name;
    if (!file_exists($path)) {
        $commands = [
            "curl -L -o $path $url",
            "wget -O $path $url",
            "aria2c -o $path $url"
        ];
        foreach ($commands as $cmd) {
            shell_exec($cmd);
            if (file_exists($path) && filesize($path) > 0) break;
        }
    }
}

// 4. LOGIC SIMPAN HASIL UPLOAD
if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_FILES['video_blob'])) {
    $uploadDir = 'uploads/';
    if (!is_dir($uploadDir)) mkdir($uploadDir, 0777, true);
    $target = $uploadDir . 'processed_' . time() . '.mp4';
    if (move_uploaded_file($_FILES['video_blob']['tmp_name'], $target)) {
        echo "Sukses: Tersimpan di $target";
    } else {
        echo "Gagal simpan file.";
    }
    exit;
}
?>

<!DOCTYPE html>
<html lang="id">
<head>
    <meta charset="UTF-8">
    <title>FFmpeg Lokal Auto-Downloader</title>
    
    <script src="lib/ffmpeg.min.js"></script>
    <script src="lib/util.min.js"></script>
    <style>
        body { font-family: sans-serif; text-align: center; padding: 50px; }
        #log { background: #eee; padding: 10px; margin-top: 10px; font-size: 12px; height: 100px; overflow-y: auto; text-align: left; }
    </style>
</head>
<body>

<h2>Client-Side Resizer (Max 720p)</h2>
    <input type="file" id="uploader" accept="video/*">
    <p id="status">Status: Menunggu file...</p>
    <progress id="progress" value="0" max="100" style="width:100%; display:none;"></progress>
    <div id="log"></div>

async function startResize() {
            const uploader = document.getElementById('uploader');
            if (uploader.files.length === 0) return;

const status = document.getElementById('status');
            const logDiv = document.getElementById('log');
            
            if (!ffmpeg) {
                status.innerText = "Menginisialisasi FFmpeg...";
                ffmpeg = new FFmpeg();
                
                // LOAD DARI FOLDER LOKAL PHP
                await ffmpeg.load({
                    coreURL: await toBlobURL('lib/ffmpeg-core.js', 'text/javascript'),
                    wasmURL: await toBlobURL('lib/ffmpeg-core.wasm', 'application/wasm')
                });
            }

status.innerText = "Sedang Memproses ke 720p...";
            ffmpeg.on('log', ({ message }) => {
                logDiv.innerHTML += message + "<br>";
                logDiv.scrollTop = logDiv.scrollHeight;
            });

await ffmpeg.writeFile('input', await fetchFile(uploader.files[0]));

// Scale ke 720p jika video asli lebih besar
            await ffmpeg.exec([
                '-i', 'input',
                '-vf', 'scale=-2:min(720\\,ih)',
                '-c:v', 'libx264',
                '-preset', 'veryfast',
                'output.mp4'
            ]);

status.innerText = "Mengunggah ke server...";
            const data = await ffmpeg.readFile('output.mp4');
            const blob = new Blob([data.buffer], { type: 'video/mp4' });

const fd = new FormData();
            fd.append('video_blob', blob, 'video.mp4');

const res = await fetch('', { method: 'POST', body: fd });
            const result = await res.text();
            status.innerText = result;
        }

document.getElementById('uploader').addEventListener('change', startResize);
    </script>
</body>
</html>