<?php
/**
 * MoodSeek — Anthropic API Proxy
 * Dosyayı vieprope.ch sunucusuna yükleyin.
 * Ardından ANTHROPIC_API_KEY satırına kendi anahtarınızı yazın.
 */

// ── Kendi API anahtarınızı buraya yazın ──────────────────────
define('ANTHROPIC_API_KEY', 'sk-ant-BURAYA_KENDI_ANAHTARINIZI_YAZIN');
// ─────────────────────────────────────────────────────────────

// CORS — sadece kendi domaininizden gelen isteklere izin verin
// HTTP ve HTTPS her ikisine de izin ver
$allowed_origins = [
    'https://vieprope.ch',
    'http://vieprope.ch',
    'https://www.vieprope.ch',
    'http://www.vieprope.ch',
];
$origin = $_SERVER['HTTP_ORIGIN'] ?? '';
if (in_array($origin, $allowed_origins) || strpos($origin, 'localhost') !== false || strpos($origin, '127.0.0.1') !== false) {
    header("Access-Control-Allow-Origin: $origin");
} else {
    header("Access-Control-Allow-Origin: https://vieprope.ch");
}
header('Access-Control-Allow-Methods: POST, OPTIONS');
header('Access-Control-Allow-Headers: Content-Type');
header('Content-Type: application/json; charset=utf-8');

// OPTIONS preflight
if ($_SERVER['REQUEST_METHOD'] === 'OPTIONS') {
    http_response_code(204);
    exit;
}

// Sadece POST
if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405);
    echo json_encode(['error' => 'Method not allowed']);
    exit;
}

// Gelen body'yi oku
$input = file_get_contents('php://input');
$body  = json_decode($input, true);
if (!$body || !isset($body['prompt'])) {
    http_response_code(400);
    echo json_encode(['error' => 'Missing prompt']);
    exit;
}

$prompt   = substr(strip_tags($body['prompt']), 0, 3000); // güvenlik limiti
$langName = substr(strip_tags($body['langName'] ?? 'French'), 0, 30);

// Anthropic API isteği
$payload = json_encode([
    'model'      => 'claude-sonnet-4-6',
    'max_tokens' => 1200,
    'messages'   => [[
        'role'    => 'user',
        'content' => $prompt,
    ]],
]);

$ch = curl_init('https://api.anthropic.com/v1/messages');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_POST           => true,
    CURLOPT_POSTFIELDS     => $payload,
    CURLOPT_HTTPHEADER     => [
        'Content-Type: application/json',
        'x-api-key: ' . ANTHROPIC_API_KEY,
        'anthropic-version: 2023-06-01',
    ],
    CURLOPT_TIMEOUT        => 30,
]);

$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$curlErr  = curl_error($ch);
curl_close($ch);

if ($curlErr) {
    http_response_code(502);
    echo json_encode(['error' => 'Curl error: ' . $curlErr]);
    exit;
}

http_response_code($httpCode);
echo $response;