4WDCSA.co.za/process_trip_booking.php

<?php
require_once("env.php");
require_once("connection.php");
require_once("functions.php");
session_start();

// Get the trip_id from the request (ensure it's sanitized)
$trip_id = isset($_POST['trip_id']) ? intval($_POST['trip_id']) : 0;

checkAndRedirectBooking($trip_id);

// Check available spaces
$available_spaces = getAvailableSpaces($trip_id); // Assuming you're using MySQLi and the function is updated for it

if ($available_spaces < 1) {
    // Redirect back to trips.php with an error message
    header("Location: trips.php?error=fully_booked");
    exit();
}

// Get user ID from session (assuming user is logged in)
$user_id = isset($_SESSION['user_id']) ? $_SESSION['user_id'] : null;

// Validate user session
if (!$user_id) {
    echo "<script>alert('User is not logged in. Please log in to make a booking.'); window.location.href = 'login.php';</script>";
    exit();
}
$is_member = getUserMemberStatus($user_id);

// Check if the form has been submitted
if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    // Input variables from the form (use default values if not provided)
    $num_vehicles = isset($_POST['vehicles']) ? intval($_POST['vehicles']) : 1; // Default to 1 vehicle
    $num_adults = isset($_POST['adults']) ? intval($_POST['adults']) : 1; // Default to 1 adult
    $num_children = isset($_POST['children']) ? intval($_POST['children']) : 0; // Default to 0 children
    $radio = isset($_POST['AddExtra']) ? 1 : 0; // Checkbox for extras
    // Fetch trip costs from the database
    $query = "SELECT trip_name, cost_members, cost_nonmembers, booking_fee, start_date, end_date, trip_code FROM trips WHERE trip_id = ?";
    $stmt = $conn->prepare($query);
    $stmt->bind_param('i', $trip_id);
    $stmt->execute();
    $result = $stmt->get_result();

    // Check if trip exists
    if ($result->num_rows === 0) {
        $response = ['error' => 'Trip not found.'];
        header('Content-Type: application/json');
        echo json_encode($response);
        exit();
    }

    // Fetch trip details
    $trip = $result->fetch_assoc();
    $trip_code = $trip['trip_code'];
    $trip_name = $trip['trip_name'];
    $cost_members = intval($trip['cost_members']);
    $cost_nonmembers = intval($trip['cost_nonmembers']);
    $member_discount = $cost_nonmembers - $cost_members;
    $booking_fee = $trip['booking_fee'];
    $radioCost = $radio ? 50 : 0;
    $start_date = $trip['start_date']; // Start date of the trip
    $end_date = $trip['end_date'];     // End date of the trip


    // Assume the membership status is determined elsewhere
    $is_member = getUserMemberStatus($user_id);

    // Initialize total and discount amount
    $total = 0;
    $discountAmount = 0;

    // Calculate total based on membership
    if ($is_member) {
        $total = (($num_adults + $num_children) * $cost_nonmembers) + $radioCost + ($num_vehicles * $booking_fee);
        $discountAmount = ($num_adults + $num_children) * $member_discount;
        $payment_amount = $total - $discountAmount;
    } else {
        $total = (($num_adults + $num_children) * $cost_nonmembers) + $radioCost + ($num_vehicles * $booking_fee);
        $payment_amount = $total;
    }

    $status = "AWAITING PAYMENT";
    $description = $trip_name;
    $type = 'trip';
    $payment_id = uniqid();
    // $eft_id =  strtoupper(base_convert(time(), 10, 36));  // Convert timestamp to base36
    $eft_id =  strtoupper($trip_code." ".getLastName($user_id));


    // Insert booking into the database
    $sql = "INSERT INTO bookings (booking_type, user_id, from_date, to_date, num_vehicles, num_adults, num_children, total_amount, discount_amount, status, payment_id, trip_id, radio, eft_id) 
            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
    $stmt = $conn->prepare($sql);

    if (!$stmt) {
        die("Preparation failed: " . $conn->error);
    }

    $stmt->bind_param('sissiiiddssiis', $type, $user_id, $start_date, $end_date, $num_vehicles, $num_adults, $num_children, $total, $discountAmount, $status, $payment_id, $trip_id, $radio, $eft_id);

    if ($stmt->execute()) {
        // Get the generated booking_id
        $booking_id = $conn->insert_id;

        if ($payment_amount < 1) {
            if (processZeroPayment($payment_id, $payment_amount, $description)) {
                echo "<script>alert('Booking successfully created!'); window.location.href = 'bookings.php';</script>";
            } else {
                $error_message = $stmt->error;
                echo "Error processing booking: $error_message";
            }
        } else {
            addEFT($eft_id, $booking_id, $user_id, $status, $payment_amount, $description);
            sendAdminNotification('New Trip Booking - '.getFullName($user_id), getFullName($user_id).' has booked for '.$description);
            header("Location: payment_confirmation.php?token=".encryptData($booking_id, $salt));
            exit(); // Ensure no further code is executed after the redirect
        }
    } else {
        // Handle error if insert fails and echo the MySQL error
        $error_message = $stmt->error;
        echo "Error processing booking: $error_message";
    }

    // if ($stmt->execute()) {
    //     if ($payment_amount < 1) {
    //         if (processZeroPayment($payment_id, $payment_amount, $description)) {
    //             echo "<script>alert('Booking successfully created!'); window.location.href = 'bookings.php';</script>";
    //         } else {
    //             $error_message = $stmt->error;
    //             echo "Error processing booking: $error_message";
    //         }
    //     } else {
    //         if (processPayment($payment_id, $payment_amount, $description)) {
    //             echo "<script>alert('Booking successfully created!'); window.location.href = 'bookings.php';</script>";
    //         } else {
    //             $error_message = $stmt->error;
    //             echo "Error processing booking: $error_message";
    //         }
    //     }
    // } else {
    //     // Handle error if insert fails and echo the MySQL error
    //     $error_message = $stmt->error;
    //     echo "Error processing booking: $error_message";
    // }

    $stmt->close();
    $conn->close();
} else {
    echo "Invalid request.";
}