<?php
declare(strict_types=1);

require_once __DIR__ . '/../../modules/shared/db.php';
require_once __DIR__ . '/../../modules/shared/auth/service.php';
require_once __DIR__ . '/../../modules/market_management/service.php';

header('Content-Type: application/json; charset=utf-8');
header('Cache-Control: no-store');

$env = expand_env_values(parse_env_file(__DIR__ . '/../../.env'));
$pdo = connect_database($env);
auth_bootstrap_session();

if (auth_current_user($pdo) === null) {
    http_response_code(401);
    echo json_encode(['ok' => false, 'error' => 'Nicht autorisiert.']);
    exit;
}

if (strtoupper((string) ($_SERVER['REQUEST_METHOD'] ?? 'GET')) !== 'POST') {
    http_response_code(405);
    echo json_encode(['ok' => false, 'error' => 'Methode nicht erlaubt.']);
    exit;
}

$csrf = (string) ($_SERVER['HTTP_X_CSRF_TOKEN'] ?? '');
if (!auth_validate_csrf_token($csrf)) {
    http_response_code(419);
    echo json_encode(['ok' => false, 'error' => 'Ungültiges Sicherheits-Token.']);
    exit;
}

$payload = json_decode((string) file_get_contents('php://input'), true);
if (!is_array($payload)) {
    http_response_code(400);
    echo json_encode(['ok' => false, 'error' => 'Ungültige Anfrage.']);
    exit;
}

try {
    $fields = is_array($payload['fields'] ?? null) ? $payload['fields'] : [];
    if (($payload['action'] ?? 'create') === 'delete') {
        $marketId = (int) ($payload['id'] ?? 0);
        if ($marketId < 1) {
            throw new InvalidArgumentException('id ist erforderlich.');
        }
        if (($payload['confirmation'] ?? '') !== 'DELETE') {
            throw new InvalidArgumentException('Die Löschbestätigung muss exakt DELETE lauten.');
        }
        $market = market_management_set_market_archive($pdo, $marketId, true);
    } elseif (($payload['action'] ?? 'create') === 'update') {
        $marketId = (int) ($payload['id'] ?? 0);
        if ($marketId < 1) {
            throw new InvalidArgumentException('id ist erforderlich.');
        }
        $market = market_management_update_market($pdo, $marketId, [
            'name' => $fields['name'] ?? null,
            'category_id' => $fields['category_id'] ?? null,
            'website_url' => $fields['website_url'] ?? null,
        ]);
    } else {
        $market = market_management_create_market($pdo, [
            'name' => $fields['name'] ?? null,
            'category_id' => $fields['category_id'] ?? null,
            'website_url' => $fields['website_url'] ?? null,
        ]);
    }
    echo json_encode(['ok' => true, 'market' => $market], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
} catch (Throwable $error) {
    http_response_code(422);
    echo json_encode(['ok' => false, 'error' => $error->getMessage()], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
}