<?php
// request_payout.php
include "../connect.php"; // This initializes $decodedToken and $encryptionHelper

error_log("[RequestPayout] --- Request Started ---");

// --- 1. Security Fix (S1): Extract ID from JWT instead of request body ---
$driverId = null;
if (isset($decodedToken) && isset($decodedToken->sub)) {
    $driverId = $decodedToken->sub;
} else {
    printFailure("Unauthorized. Valid token required.");
    exit;
}

$amount_raw  = filterRequest("amount");
$wallet_type = filterRequest("wallet_type") ?? 'Sham Cash';
$otp         = filterRequest("otp");

$amount = is_numeric($amount_raw) ? (float)$amount_raw : 0.0;

// تحقق أساسي
if (empty($driverId) || $amount <= 0) {
    printFailure("driverId and a valid amount are required.");
    exit;
}

if (empty($otp)) {
    printFailure("OTP code is required for payout.");
    exit;
}

try {
    // --- 2. Fetch Driver info & Dynamic Fee (S3) ---
    $stmtDriver = $con->prepare("SELECT phone, site FROM driver WHERE id = :id");
    $stmtDriver->execute([':id' => $driverId]);
    $driverInfo = $stmtDriver->fetch(PDO::FETCH_ASSOC);

    if (!$driverInfo) {
        printFailure("Driver not found.");
        exit;
    }

    $phone = $encryptionHelper->decryptData($driverInfo['phone']);
    $site = $encryptionHelper->decryptData($driverInfo['site']);

    $payout_fee = 0.0;
    if (strtolower($site) === 'syria') {
        $payout_fee = 35.00;
    } elseif (strtolower($site) === 'egypt') {
        $payout_fee = 10.00;
    } elseif (strtolower($site) === 'jordan') {
        $payout_fee = 0.00;
    } else {
        $payout_fee = 35.00; // Default fallback
    }

    $total_deduction = $amount + $payout_fee;

    // --- 3. OTP Verification (S6) ---
    $encryptedPhone = $encryptionHelper->encryptData($phone);
    $encryptedOtp = $encryptionHelper->encryptData($otp);

    $stmtOtp = $con->prepare("SELECT id FROM token_verification_driver 
                              WHERE phone_number = ? AND token = ? 
                              AND expiration_time > NOW() AND verified = 0 
                              LIMIT 1");
    $stmtOtp->execute([$encryptedPhone, $encryptedOtp]);
    $otpRow = $stmtOtp->fetch(PDO::FETCH_ASSOC);

    if (!$otpRow) {
        printFailure("Invalid or expired OTP. Please request a new one.");
        exit;
    }

    // --- 4. Atomic balance check + deduction + insert (S2, S4) ---
    $con->beginTransaction();

    $stmt_balance = $con->prepare("
        SELECT COALESCE(SUM(amount), 0) AS balance
        FROM driverWallet
        WHERE driverID = :id
        FOR UPDATE
    ");
    $stmt_balance->execute([':id' => $driverId]);
    $wallet = $stmt_balance->fetch(PDO::FETCH_ASSOC);

    if ($wallet['balance'] < $total_deduction) {
        $con->rollBack();
        printFailure("Insufficient balance. Required: $total_deduction");
        exit;
    }

    // S4 Fix: Deduct the balance IMMEDIATELY
    $insertDriver = $con->prepare("INSERT INTO driverWallet (driverID, paymentID, amount, paymentMethod) VALUES (:driverID, NULL, :amount, :paymentMethod)");
    $insertDriver->execute([
        ':driverID' => $driverId, 
        ':amount' => -$total_deduction,
        ':paymentMethod' => 'payout_reserved'
    ]);

    $sql = "
        INSERT INTO payout_requests (driver_id, driver_phone, amount, wallet_type)
        VALUES (:did, :phone, :amount, :wallet)
    ";
    $stmt = $con->prepare($sql);
    $stmt->execute([
        ':did'   => $driverId,
        ':phone' => $phone,
        ':amount'=> $amount,
        ':wallet'=> $wallet_type
    ]);

    // Mark OTP as verified
    $con->prepare("UPDATE token_verification_driver SET verified = 1 WHERE id = ?")->execute([$otpRow['id']]);

    $con->commit();

    if ($stmt->rowCount() > 0) {
        $customerServicePhone = getenv('CUSTOMER_SERVICE_PHONE');

        $message = 
            "⚠️ طلب دفع جديد:\n" .
            "ID السائق: {$driverId}\n" .
            "هاتف السائق: {$phone}\n" .
            "البلد: {$site}\n" .
            "نوع المحفظة: {$wallet_type}\n" .
            "المبلغ المطلوب: {$amount}\n" .
            "الرسوم المخصومة: {$payout_fee}\n\n" .
            "الرجاء من فريق خدمة العملاء تنفيذ عملية الدفع الآن.";

        sendWhatsAppFromServer($customerServicePhone, $message);      

        error_log("[RequestPayout] Successfully created payout request for driver ID: $driverId");
        printSuccess("Payout request created successfully. It will be processed shortly.");
    } else {
        printFailure("Failed to create payout request.");
    }

} catch (PDOException $e) {
    if ($con->inTransaction()) {
        $con->rollBack();
    }
    error_log("[RequestPayout] PDOException: " . $e->getMessage());
    printFailure("A database error occurred.");
}
?>