api-based-plugin.php

<?php
/**
 * Plugin Name:       API Based Plugin - Piyush Asthana
 * Plugin URI:        https://awesomemotive.com/
 * Description:       Custom Plugin for accessing the data from API endpoint using Ajax.
 * Version:           1.0.0
 * Requires at least: 5.2
 * Requires PHP:      8.0
 * Author:            Piyush Asthana
 * Author URI:        https://awesomemotive.com/
 * License:           GPL-2.0+
 * License URI:       http://www.gnu.org/licenses/gpl-2.0.txt
 * Text Domain:       api-based-plugin
 * Domain Path:       /languages
 *
 * @package           Api_Based_Plugin
 */

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

if ( ! class_exists( 'API_Based_Plugin' ) ) :
	/**
	 * Main API_Based_Plugin Class.
	 *
	 * @class API_Based_Plugin
	 * @version 1.0.0
	 */
	class API_Based_Plugin {

		/**
		 * The single instance of the class.
		 *
		 * @var API_Based_Plugin
		 * @since 1.0.0
		 */
		protected static $instance = null;

		/**
		 * Main API_Based_Plugin Instance.
		 *
		 * Ensures only one instance of API_Based_Plugin is loaded or can be loaded.
		 *
		 * @since 1.0.0
		 * @static
		 * @see instantiateb_API_Based_Plugin()
		 * @return API_Based_Plugin - Main instance.
		 */
		public static function instance() {

			if ( is_null( self::$instance ) ) {
				self::$instance = new self();
			}
			return self::$instance;
		}


		/**
		 * API_Based_Plugin Constructor.
		 *
		 * @since  1.0.0
		 */
		public function __construct() {

			$this->define_constants();
			$this->init_hooks();
			$this->set_locale();
		}

		/**
		 * Hook into actions and filters.
		 *
		 * @since  1.0.0
		 */
		private function init_hooks() {

			$this->includes();
			register_activation_hook( __FILE__, array( $this, 'api_based_plugin_activate' ) );
		}

		/**
		 * Define API_Based_Plugin Constants.
		 *
		 * @since  1.0.0
		 */
		private function define_constants() {

			$this->define( 'API_BASED_PLUGIN_PLUGIN_FILE', __FILE__ );
			$this->define( 'API_BASED_PLUGIN_PLUGIN_VERSION', '1.0.0' );
			$this->define( 'API_BASED_PLUGIN_PLUGIN_BASENAME', plugin_basename( __FILE__ ) );
			$this->define( 'API_BASED_PLUGIN_VERSION', API_BASED_PLUGIN_PLUGIN_VERSION );
			$this->define( 'API_BASED_PLUGIN_PLUGIN_DIR_PATH', plugin_dir_path( __FILE__ ) );
			$this->define( 'API_BASED_PLUGIN_PLUGIN_DIR_URL', plugin_dir_url( __FILE__ ) );
		}

		/**
		 * Define constant if not already set.
		 *
		 * @param  string      $name Define constant name.
		 * @param  string|bool $value Define constant value.
		 * @since  1.0.0
		 */
		private function define( $name, $value ) {

			if ( ! defined( $name ) ) {
				define( $name, $value );
			}
		}

		/**
		 * Define the locale for this plugin for internationalization.
		 *
		 * Uses the Api_Based_Plugin_i18n class in order to set the domain and to register the hook
		 * with WordPress.
		 *
		 * @since    1.0.0
		 * @access   private
		 */
		private function set_locale() {

			load_plugin_textdomain( 'api-based-plugin', false, dirname( plugin_basename( __FILE__ ) ) . '/languages/' );
		}

		/**
		 * Include required core files used in admin and on the frontend.
		 *
		 * @since  1.0.0
		 */
		public function includes() {
			/* Enqueue admin page file. */
			require_once 'includes/admin/class-api-based-plugin-admin.php';
			/* Enqueue admin page file. */
			require_once 'includes/admin/class-api-based-admin-table.php';
			/* Enqueue front-end page file. */
			require_once 'includes/front-end/class-api-based-plugin-front-end.php';
			/* Enqueue front-end page file. */
			require_once 'includes/class-api-based-wp-cli-refresh-data.php';
			/* Enqueue Gutenberg Block. */
			require_once 'block/api-based-plugin-block.php';
		}

		/**
		 * Load default admin settings on plugin activation.
		 *
		 * @since  1.0.0
		 */
		public function api_based_plugin_activate() {
			global $wpdb;
			$update_version = '1.0.0';
			$installed_ver  = get_option( 'plugin_db_version' );
			if ( $installed_ver !== $update_version ) {
				$charset_collate = $wpdb->get_charset_collate();
				$table_name      = $wpdb->prefix . 'api_data';
				$sql             = "CREATE TABLE `$table_name` (
					id mediumint(9) NOT NULL AUTO_INCREMENT,
					`data_id` int(11) NOT NULL,
					`first_name` varchar(220) DEFAULT NULL,
					`last_name` varchar(220) DEFAULT NULL,
					`email` varchar(220) DEFAULT NULL,
					`date`  varchar(220) DEFAULT NULL,
					PRIMARY KEY(id)
					) ENGINE=MyISAM DEFAULT CHARSET=latin1;
					";
				require_once ABSPATH . 'wp-admin/includes/upgrade.php';
				dbDelta( $sql );
				update_option( 'plugin_db_version', $update_version );
			}
		}
	}


endif;
/**
 * Main instance of API_Based_Plugin.
 *
 * Returns the main instance of API_Based_Plugin to prevent the need to use globals.
 *
 * @since  1.0.0
 * @return API_Based_Plugin
 */
API_Based_Plugin::instance();