<?php
require_once __DIR__ . '/../../connect.php';
require_once __DIR__ . '/../../core/Services/SiroGeminiService.php';
require_once __DIR__ . '/../../encrypt_decrypt.php';

// Variables from connect.php (JWT token)
global $user_id, $role, $con;

if (!$user_id) {
    jsonError("Unauthorized");
    exit;
}

$driverID = $user_id;
$helpQuestion = filterRequest("helpQuestion");

if (empty($helpQuestion)) {
    jsonError("Missing parameters");
    exit;
}

try {
    global $encryptionHelper;

    // 1. Fetch driver info (Decrypting names and phone)
    $stmt = $con->prepare("SELECT `first_name`, `last_name`, `phone` FROM `driver` WHERE `id` = :id");
    $stmt->bindParam(':id', $driverID);
    $stmt->execute();
    $driverRow = $stmt->fetch(PDO::FETCH_ASSOC);
    
    $driverInfo = [];
    if ($driverRow) {
        $driverInfo = [
            'first_name' => $driverRow['first_name'] ? $encryptionHelper->decryptData($driverRow['first_name']) : '',
            'last_name'  => $driverRow['last_name'] ? $encryptionHelper->decryptData($driverRow['last_name']) : '',
            'phone'      => $driverRow['phone'] ? $encryptionHelper->decryptData($driverRow['phone']) : '',
            'user_type'  => $role
        ];
    }

    // 2. Fetch wallet balance using S2S
    $walletServer = getenv('PAYMENT_SERVER_URL') ?: 'https://wallet.siromove.com';
    $walletUrl = "$walletServer/v2/main/ride/driverWallet/get_s2s_wallet_dashboard.php";
    $ch = curl_init($walletUrl);
    curl_setopt_array($ch, [
        CURLOPT_POST => true,
        CURLOPT_POSTFIELDS => http_build_query(["driverID" => $driverID]),
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_TIMEOUT => 5,
        CURLOPT_HTTPHEADER => [
            'Content-Type: application/x-www-form-urlencoded',
            'X-S2S-Api-Key: ' . getenv('S2S_SHARED_KEY')
        ]
    ]);
    $s2sRes = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    curl_close($ch);

    $totalWallet = 0.0;
    if ($httpCode === 200 && $s2sRes) {
        $resDecoded = json_decode($s2sRes, true);
        if ($resDecoded && isset($resDecoded['status']) && $resDecoded['status'] === 'success') {
            $totalWallet = (float)($resDecoded['message']['totalWallet'] ?? 0.0);
        }
    }
    $walletInfo = ['balance' => $totalWallet];

    // 3. Fetch recent trips (Correct table is `ride` and correct columns)
    $recentTrips = [];
    try {
        $stmt3 = $con->prepare("SELECT `id`, `date`, `time`, `status`, `price`, `paymentMethod` FROM `ride` WHERE `driver_id` = :id ORDER BY `id` DESC LIMIT 3");
        $stmt3->bindParam(':id', $driverID);
        $stmt3->execute();
        $recentTrips = $stmt3->fetchAll(PDO::FETCH_ASSOC) ?: [];
    } catch (PDOException $e) {
        // Ignored
    }

    $contextData = [
        'driver_info' => $driverInfo,
        'wallet_balance' => $walletInfo,
        'recent_trips' => $recentTrips,
    ];

    // 4. Call Gemini
    $geminiService = new SiroGeminiService();
    $aiReply = $geminiService->answerSupportInquiry($helpQuestion, $contextData);

    if (!$aiReply) {
        $aiReply = "مرحباً كابتن، استلمنا استفسارك ولكن المساعد الذكي غير متاح حالياً. سيقوم فريق الدعم بمراجعة رسالتك قريباً.";
    }

    // 5. Insert into helpCenter
    $sql = "INSERT INTO `helpCenter` (`driverID`, `helpQuestion`, `replay`) VALUES (:driverID, :helpQuestion, :replay)";
    $stmt4 = $con->prepare($sql);
    $stmt4->bindParam(':driverID', $driverID);
    $stmt4->bindParam(':helpQuestion', $helpQuestion);
    $stmt4->bindParam(':replay', $aiReply);
    $stmt4->execute();

    if ($stmt4->rowCount() > 0) {
        jsonSuccess(null, "Help question saved and answered");
    } else {
        jsonError("Failed to save help question");
    }
} catch (Exception $e) {
    jsonError("An error occurred while processing your request.");
}
?>