<?php
require_once __DIR__ . '/ReportGenerator.php';

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

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    http_response_code(405); // Method Not Allowed
    echo json_encode(['error' => 'Invalid request method.']);
    exit;
}

$post_data = $_POST;

// Basic validation
if (!isset($post_data['email']) || !filter_var($post_data['email'], FILTER_VALIDATE_EMAIL)) {
    http_response_code(400); // Bad Request
    echo json_encode(['error' => 'Invalid or missing email address.']);
    exit;
}

if (!isset($post_data['consent']) || $post_data['consent'] !== 'on') {
    http_response_code(400); // Bad Request
    echo json_encode(['error' => 'Consent is required.']);
    exit;
}

// Generate the report
$generator = new ReportGenerator($post_data);
$report_data = $generator->generate();

// Check for mail configuration before attempting to send
$mailConfig = require __DIR__ . '/mail/config.php';
if (empty($mailConfig['smtp_host']) || empty($mailConfig['smtp_user']) || empty($mailConfig['smtp_pass'])) {
    http_response_code(500);
    echo json_encode([
        'success' => false,
        'error' => 'Mail service is not configured. Please set SMTP_HOST, SMTP_USER, and SMTP_PASS in your .env file.',
        'details' => 'Mail service is not configured.'
    ]);
    exit;
}

// Send the email
$email_result = $generator->sendEmail($post_data['email']);

if (!empty($email_result['success'])) {
    echo json_encode([
        'success' => true,
        'message' => 'Report successfully sent to ' . $post_data['email'],
        'report' => $report_data // Optionally return report data to the frontend
    ]);
} else {
    http_response_code(500); // Internal Server Error
    $error_detail = $email_result['error'] ?? 'Unknown error';
    error_log('MailService Error: ' . $error_detail);
    echo json_encode([
        'success' => false,
        'error' => 'Failed to send email. Please check your SMTP credentials in the .env file.',
        'details' => $error_detail // for debugging
    ]);
}

?>