<?php
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;

require 'php_mailer/Exception.php';
require 'php_mailer/PHPMailer.php';
require 'php_mailer/SMTP.php';

header('Content-Type: application/json'); // Set JSON response header

if ($_SERVER["REQUEST_METHOD"] == "POST") {
    // Collect POST data
    $name        = $_POST['name'] ?? '';
    $dob         = $_POST['dob'] ?? '';
    $gender      = $_POST['gender'] ?? '';
    $parentName  = $_POST['parentName'] ?? '';
    $phone       = $_POST['phone'] ?? '';
    $email       = $_POST['email'] ?? '';
    $enquiryType = $_POST['enquiry-type'] ?? '';
    $course      = $_POST['course'] ?? '';
    $address     = $_POST['address'] ?? '';
    $remarks     = $_POST['remarks'] ?? 'N/A';
    $llb_board   = $_POST['llb_board'] ?? '';
    $llb_percentage = $_POST['llb_percentage'] ?? '';
    $ballb_board = $_POST['ballb_board'] ?? '';
    $ballb_percentage = $_POST['ballb_percentage'] ?? '';

    // Validate required fields
    if (!$name || !$dob || !$gender || !$parentName || !$phone || !$email || !$enquiryType || !$course || !$address) {
        http_response_code(400);
        echo json_encode(['status' => 'error', 'message' => 'All required fields must be filled.']);
        exit;
    }

    $mail = new PHPMailer(true);

    try {
        // Server settings
        $mail->isSMTP();
        $mail->Host       = 'smtp.gmail.com';
        $mail->SMTPAuth   = true;
        $mail->Username   = 'waytoadmissions21@gmail.com';
        $mail->Password   = 'lgle pkre mzzy sebw';
        $mail->SMTPSecure = PHPMailer::ENCRYPTION_SMTPS;
        $mail->Port       = 465;

        // Sender and recipient
        $mail->setFrom('waytoadmissions21@gmail.com', 'Admission Portal');
        $mail->addAddress('apurbakhanra09@gmail.com', 'Admissions Team');

        // Email content
        $mail->isHTML(true);
        $mail->Subject = 'New Admission Form Submission';
        $mail->Body = "
            <h2>Admission Form Details</h2>
            <p><strong>Student Name:</strong> {$name}</p>
            <p><strong>Date of Birth:</strong> {$dob}</p>
            <p><strong>Gender:</strong> {$gender}</p>
            <p><strong>Parent's Name:</strong> {$parentName}</p>
            <p><strong>Phone:</strong> {$phone}</p>
            <p><strong>Email:</strong> {$email}</p>
            <p><strong>Enquiry Type:</strong> {$enquiryType}</p>
            <p><strong>Course:</strong> {$course}</p>
            <p><strong>Address:</strong> {$address}</p>
            <p><strong>Remarks:</strong> {$remarks}</p>
        ";

        // Add course-specific fields
        if ($course === 'LLB' && ($llb_board || $llb_percentage)) {
            $mail->Body .= "
                <p><strong>University Name (Graduation):</strong> " . ($llb_board ?: 'N/A') . "</p>
                <p><strong>Percentage (Graduation):</strong> " . ($llb_percentage ?: 'N/A') . "</p>
            ";
        } elseif ($course === 'B.A. LL.B.' && ($ballb_board || $ballb_percentage)) {
            $mail->Body .= "
                <p><strong>Board Name (10 + 2):</strong> " . ($ballb_board ?: 'N/A') . "</p>
                <p><strong>Percentage (10 + 2):</strong> " . ($ballb_percentage ?: 'N/A') . "</p>
            ";
        }

        $mail->send();
        echo json_encode(['status' => 'success', 'message' => 'Form submitted successfully. Mail sent.']);
    } catch (Exception $e) {
        http_response_code(500);
        echo json_encode(['status' => 'error', 'message' => 'Message could not be sent. Mailer Error: ' . $mail->ErrorInfo]);
    }
} else {
    http_response_code(405);
    echo json_encode(['status' => 'error', 'message' => 'Invalid request method.']);
}
?>