<?php
/**
 * Plugin Name: AHA Mail SMTP
 * Plugin URI: https://wordpress.org/plugins/aha-mail-smtp
 * Description: A modern, user-friendly WordPress SMTP plugin that allows you to configure outgoing emails via trusted SMTP providers. AHA Mail SMTP ensures your WordPress emails are delivered reliably to the inbox instead of spam folders. It includes an easy setup wizard, advanced email authentication, and pre-configured settings for popular providers like Gmail, Outlook, Zoho, Brevo, Mailgun, SendGrid, Amazon SES, SMTP2GO, and more.
 * Version: 2.0.2
 * Author: Amit Hasan Abdullah
 * Author URI: https://amithasanabdullah.com
 * License: GPLv2 or later
 * Text Domain: aha-mail-smtp
 * Domain Path: /languages
 * Requires at least: 5.0
 * Tested up to: 6.9
 * Requires PHP: 7.4
 * Network: true
 */

// Prevent direct access
if (!defined('ABSPATH')) {
    exit;
}

// Define plugin constants
define('AHA_MAIL_SMTP_VERSION', '2.0.2');
define('AHA_MAIL_SMTP_PLUGIN_FILE', __FILE__);
define('AHA_MAIL_SMTP_PLUGIN_DIR', plugin_dir_path(__FILE__));
define('AHA_MAIL_SMTP_PLUGIN_URL', plugin_dir_url(__FILE__));
define('AHA_MAIL_SMTP_PLUGIN_BASENAME', plugin_basename(__FILE__));

/**
 * Main AHA Mail SMTP Class
 */
class AHA_Mail_SMTP {
    
    /**
     * Single instance of the class
     */
    private static $instance = null;
    
    /**
     * Get single instance
     */
    public static function get_instance() {
        if (null === self::$instance) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    /**
     * Constructor
     */
    private function __construct() {
        $this->init_hooks();
        $this->load_dependencies();
    }
    
    /**
     * Initialize hooks
     */
    private function init_hooks() {
        register_activation_hook(__FILE__, array($this, 'activate'));
        register_deactivation_hook(__FILE__, array($this, 'deactivate'));
        
        add_action('init', array($this, 'load_textdomain'));
        add_action('plugins_loaded', array($this, 'init'));
    }
    
    /**
     * Load plugin dependencies
     */
    private function load_dependencies() {
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-core.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-settings.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-mailer.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-logger.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-security.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'includes/class-aha-mail-smtp-wizard.php';
        require_once AHA_MAIL_SMTP_PLUGIN_DIR . 'admin/class-aha-mail-smtp-admin.php';
    }
    
    /**
     * Initialize plugin
     */
    public function init() {
        // Initialize core components
        AHA_Mail_SMTP_Core::get_instance();
        AHA_Mail_SMTP_Settings::get_instance();
        AHA_Mail_SMTP_Mailer::get_instance();
        AHA_Mail_SMTP_Logger::get_instance();
        AHA_Mail_SMTP_Security::get_instance();
        
        if (is_admin()) {
            AHA_Mail_SMTP_Admin::get_instance();
            AHA_Mail_SMTP_Wizard::get_instance();
        }
    }
    
    /**
     * Load plugin textdomain
     * Note: WordPress automatically loads translations for plugins hosted on WordPress.org since version 4.6
     */
    public function load_textdomain() {
        // Removed load_plugin_textdomain() as it's no longer needed for WordPress.org hosted plugins
        // WordPress will automatically load translations as needed
    }
    
    /**
     * Plugin activation
     */
    public function activate() {
        // Create email logs table
        $this->create_logs_table();
        
        // Set default options
        $this->set_default_options();
        
        // Flush rewrite rules
        flush_rewrite_rules();
    }
    
    /**
     * Plugin deactivation
     */
    public function deactivate() {
        // Clean up scheduled events if any
        wp_clear_scheduled_hook('aha_mail_smtp_cleanup_logs');
    }
    
    /**
     * Create email logs table
     */
    private function create_logs_table() {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'aha_mail_smtp_logs';
        
        $charset_collate = $wpdb->get_charset_collate();
        
        $sql = "CREATE TABLE $table_name (\n            id bigint(20) NOT NULL AUTO_INCREMENT,\n            to_email varchar(255) NOT NULL,\n            subject text NOT NULL,\n            message longtext NOT NULL,\n            headers text,\n            attachments text,\n            status varchar(20) NOT NULL DEFAULT 'pending',\n            error_message text,\n            date_sent datetime DEFAULT CURRENT_TIMESTAMP,\n            PRIMARY KEY (id),\n            KEY status (status),\n            KEY date_sent (date_sent)\n        ) $charset_collate;";
        
        require_once(ABSPATH . 'wp-admin/includes/upgrade.php');
        dbDelta($sql);
    }
    
    /**
     * Set default plugin options
     */
    private function set_default_options() {
        $default_options = array(
            'smtp_host' => '',
            'smtp_port' => 587,
            'smtp_encryption' => 'tls',
            'smtp_auth' => true,
            'smtp_username' => '',
            'smtp_password' => '',
            'from_email' => get_option('admin_email'),
            'from_name' => get_bloginfo('name'),
            'force_from' => false,
            'reply_to_email' => '',
            'return_path' => '',
            'enable_logging' => true,
            'debug_mode' => false,
            'provider' => 'generic',
            'connection_mode' => 'smtp'
        );
        
        foreach ($default_options as $key => $value) {
            if (false === get_option('aha_mail_smtp_' . $key)) {
                add_option('aha_mail_smtp_' . $key, $value);
            }
        }
    }
}

// Initialize the plugin
AHA_Mail_SMTP::get_instance();