Define plugin constants for activation deactivation hooks.

<?php
/**
 * Plugin Name: Your Plugin Name
 * Description: Your plugin description.
 * Version: 1.0.0
 * Author: Your Name
 * License: GPL-2.0+
 * License URI: http://www.gnu.org/licenses/gpl-2.0.txt
 *
 * @package YourPluginNamespace
 */

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
    exit;
}

// Define plugin constants for activation/deactivation hooks.
define( 'YOUR_PREFIX_ON_ACTIVATION', 'your_prefix_on_activation' );
define( 'YOUR_PREFIX_ON_DEACTIVATION', 'your_prefix_on_deactivation' );

// Ensure the required WP file for plugin functions is included.
if ( ! function_exists( 'is_plugin_active' ) ) {
    require_once ABSPATH . 'wp-admin/includes/plugin.php';
}

/**
 * Activation hook callback.
 */
function your_prefix_activate_plugin() {
    if ( current_user_can( 'activate_plugins' ) ) {
        add_option( YOUR_PREFIX_ON_ACTIVATION, 'yes' );
        do_action( YOUR_PREFIX_ON_ACTIVATION );
    }
}
register_activation_hook( __FILE__, 'your_prefix_activate_plugin' );

/**
 * Deactivation hook callback.
 */
function your_prefix_deactivate_plugin() {
    if ( current_user_can( 'activate_plugins' ) ) {
        do_action( YOUR_PREFIX_ON_DEACTIVATION );
        delete_option( YOUR_PREFIX_ON_ACTIVATION );
    }
}
register_deactivation_hook( __FILE__, 'your_prefix_deactivate_plugin' );

/**
 * Handle actions after plugin activation.
 */
function your_prefix_handle_activation() {
    if ( is_admin() && 'yes' === get_option( YOUR_PREFIX_ON_ACTIVATION ) ) {
        delete_option( YOUR_PREFIX_ON_ACTIVATION );
        do_action( YOUR_PREFIX_ON_ACTIVATION );
    }
}
add_action( 'admin_init', 'your_prefix_handle_activation' );

/**
 * Register actions for logging plugin activation and deactivation events.
 */
function your_prefix_register_log_actions() {
    add_action(
        YOUR_PREFIX_ON_ACTIVATION,
        function() {
            your_prefix_log_event( 'activated' );
        }
    );

    add_action(
        YOUR_PREFIX_ON_DEACTIVATION,
        function() {
            your_prefix_log_event( 'deactivated' );
        }
    );
}
add_action( 'plugins_loaded', 'your_prefix_register_log_actions' );

/**
 * Log plugin events if WP_DEBUG is true.
 *
 * @param string $event The event to log (e.g., 'activated', 'deactivated').
 */
function your_prefix_log_event( $event ) {
    if ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
        error_log( sprintf( 'Plugin %s: %s', $event, __FILE__ ) );
    }
}

/**
 * Example of another hook triggered by activation.
 */
function your_prefix_init_action() {
    if ( did_action( YOUR_PREFIX_ON_ACTIVATION ) ) {
        // Additional functionality or setup code on plugin activation.
    }
}
add_action( 'init', 'your_prefix_init_action' );