<?php
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);

header('Content-Type: application/json; charset=utf-8');

require __DIR__ . '/../vendor/autoload.php';

use Aws\S3\S3Client;
use Aws\Credentials\Credentials;

// === 버킷/키 설정 ===
$bucket_name = "baron-software-test";
$account_id  = "81fa2d48964d31dd0da9558f9ce601d1";
$access_key  = "9ade5915f7abd402db60a87f3b3b6d76";
$secret_key  = "a1a1cfd59f739977f98fb73f214894e39dbac9a39b1f6208020aa2e1303ea54c";

// === 프론트에서 넘어온 값 ===
$product_code = $_POST['product_code'] ?? '';
$sw_version   = $_POST['sw_version'] ?? '';
$filename     = $_POST['filename'] ?? '';
$content_type = $_POST['content_type'] ?? 'application/octet-stream';

if (!$product_code || !$sw_version || !$filename) {
    http_response_code(400);
    echo json_encode(['error' => '필수값 누락 (product_code, sw_version, filename)']);
    exit;
}

// === 제품 코드 → 실제 폴더명 매핑 ===
$map = [
    "1"   => "eg-bim",
    "2"   => "tova",
    "3"   => "gaia",
    "999" => "test"
];

$folder = $map[$product_code] ?? $product_code; // 혹시 매핑 없으면 그대로 사용

// === 업로드 경로 ===
// ex) eg-bim/1.2.3/setup_eg-bim_1.2.3.exe
$key = "{$folder}/{$sw_version}/{$filename}";

try {
    $credentials = new Credentials($access_key, $secret_key);

    $s3 = new S3Client([
        'region'      => 'auto',
        'version'     => 'latest',
        'endpoint'    => "https://{$account_id}.r2.cloudflarestorage.com",
        'credentials' => $credentials,
    ]);

    // Presign URL 생성
    $cmd = $s3->getCommand('PutObject', [
        'Bucket'      => $bucket_name,
        'Key'         => $key,
        'ContentType' => $content_type
    ]);

    $request = $s3->createPresignedRequest($cmd, '+1 hour');

    echo json_encode([
        'url' => (string)$request->getUri(),  // 브라우저에서 PUT 할 주소
        'key' => $key                         // DB에 저장할 전체 경로
    ]);
} catch (Exception $e) {
    http_response_code(500);
    echo json_encode([
        'error'  => 'Presign 실패',
        'detail' => $e->getMessage()
    ]);
}
?>