<?php
header('Content-Type: application/json');

$url = $_GET['url'] ?? null;
$defaultCover = 'https://api.nexostream.net/nocover.png';

if (!$url) {
    echo json_encode(['error' => 'Parámetro "url" faltante']);
    exit;
}

$apiUrl = 'https://free.radioapi.lat/met?url=' . urlencode($url);

// Conexión por cURL con mayor tolerancia
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_TIMEOUT, 10);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$response = curl_exec($ch);
$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);

if ($httpcode !== 200 || !$response) {
    echo json_encode(['error' => 'No se pudo conectar a radioapi.lat']);
    exit;
}

$data = json_decode($response, true);
if (!is_array($data)) {
    echo json_encode(['error' => 'Respuesta inválida']);
    exit;
}

// Reemplazar portada si viene por defecto
if (
    empty($data['artwork']) ||
    str_contains($data['artwork'], 'nocover') ||
    str_contains($data['artwork'], 'default') ||
    str_contains($data['artwork'], 'cdn.radioapi.lat/cover/default')
) {
    $data['artwork'] = $defaultCover;
}

// Forzar que haya 9 canciones en el historial (rellenando si es necesario)
$song_history = $data['song_history'] ?? [];
while (count($song_history) < 9) {
    $song_history[] = [
        'song' => [
            'title' => $data['song'] ?? '',
            'artist' => $data['artist'] ?? ''
        ]
    ];
}
$data['song_history'] = array_slice($song_history, 0, 8);

echo json_encode($data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);