index.php

<?php
date_default_timezone_set('America/Santiago');

// requires manual (sin Composer)
require __DIR__ . '/src/Util.php';
require __DIR__ . '/src/Cache.php';
require __DIR__ . '/src/SteamClient.php';
require __DIR__ . '/src/Render.php';
//require __DIR__ . '/src/Locale.php';

$config = require __DIR__ . '/config/config.php';

function json_out($payload, int $code = 200) {
  Render::json($payload, $code); exit;
}

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: GET, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type, Authorization');
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') { http_response_code(204); exit; }

function read_common_params(array $config): array {
  $cc          = strtolower(Util::get('cc', $config['default_cc']));
  $lang        = strtolower(Util::get('l',  $config['default_lang']));
  $limit       = max(1, min(200, (int) Util::get('limit', 50)));
  $offset      = max(0, (int) Util::get('offset', 0));
  $minDiscount = max(0, (int) Util::get('min_discount', $config['min_discount']));
  return compact('cc','lang','limit','offset','minDiscount');
}

$cache  = new Cache(__DIR__ . '/storage/cache', (int)$config['cache_ttl']);
$client = new SteamClient($config);

function load_featured(Cache $cache, SteamClient $client, string $cc, string $lang): ?array {
  $key = "featuredcategories:cc={$cc};l={$lang}";
  $data = $cache->get($key);
  if (!$data) {
    $data = $client->getFeaturedCategories($cc, $lang);
    if ($data) $cache->set($key, $data);
  }
  return $data;
}

// Ruta real ignorando la subcarpeta (p.ej. /steamApi)
$reqPath  = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH) ?? '/';
$basePath = rtrim(dirname($_SERVER['SCRIPT_NAME']), '/\\'); // "/steamApi"
$route    = ($basePath && strpos($reqPath, $basePath) === 0)
            ? substr($reqPath, strlen($basePath))
            : $reqPath;

$path = rtrim($route, '/');
if ($path === '') { $path = '/'; }


$params = read_common_params($config);

// Health
if ($path === '' || $path === '/health') {
  header('Content-Type: text/plain; charset=utf-8');
  echo 'OK '.date('c');
  exit;
}

// /api/v1/*
if (strpos($path, '/api/v1') === 0) {
  $data = load_featured($cache, $client, $params['cc'], $params['lang']);
  if (!$data) json_out(['ok'=>false,'error'=>'Steam no respondió (featuredcategories).'], 502);

  $meta = [
    'version'      => 'v1',
    'cc'           => $params['cc'],
    'language'     => $params['lang'],
    'limit'        => $params['limit'],
    'offset'       => $params['offset'],
    'cache_ttl'    => $config['cache_ttl'],
    'source'       => 'featuredcategories (no oficial)',
    'generated_at' => date('c'),
  ];

  if ($path === '/api/v1/deals') {
    $all   = SteamClient::extractSpecials($data, $params['minDiscount']);
    $total = count($all);
    $slice = array_slice($all, $params['offset'], $params['limit']);
    json_out(['ok'=>true, 'meta'=>$meta + ['min_discount'=>$params['minDiscount'], 'total'=>$total], 'data'=>$slice]);
  }

  if ($path === '/api/v1/free') {
    $all   = SteamClient::extractTopFree($data);
    $total = count($all);
    $slice = array_slice($all, $params['offset'], $params['limit']);
    json_out(['ok'=>true, 'meta'=>$meta + ['total'=>$total], 'data'=>$slice]);
  }

  json_out(['ok'=>false,'error'=>'Endpoint no encontrado.'], 404);
}

// Si llegaste acá, no hay HTML de demo; responde 404
json_out(['ok'=>false,'error'=>'Not found'], 404);