<?php
require_once __DIR__ . '/ai/LocalAIApi.php';

$request_body = file_get_contents('php://input');
$data = json_decode($request_body, true);
$user_message = $data['message'];

if (empty($user_message)) {
    echo json_encode(['reply' => 'Please provide a message.']);
    exit;
}

$resp = LocalAIApi::createResponse([
    'input' => [
        ['role' => 'system', 'content' => 'You are a helpful assistant for a real estate MLM company called Kutumbh Infra.'],
        ['role' => 'user', 'content' => $user_message],
    ],
]);

if (!empty($resp['success'])) {
    $text = LocalAIApi::extractText($resp);
    if ($text === '') {
        $decoded = LocalAIApi::decodeJsonFromResponse($resp);
        $text = $decoded ? json_encode($decoded, JSON_UNESCAPED_UNICODE) : (string)($resp['data'] ?? '');
    }
    $aiReply = $text;
} else {
    error_log('AI error: ' . ($resp['error'] ?? 'unknown'));
    $aiReply = 'Sorry, I am having trouble connecting to the AI service.';
}

header('Content-Type: application/json');
echo json_encode(['reply' => $aiReply]);