<?php
if ( ! defined( 'WPINC' ) ) {
	die;
}

/**
 * Class Epsilon_Notify_System
 */
class Epsilon_Notify_System {


	public static $plugins;

	/**
	 * @param $ver
	 *
	 * @return mixed
	 */
	public static function version_check( $ver ) {
		$theme = wp_get_theme();

		return version_compare( $theme['Version'], $ver, '>=' );
	}

	/**
	 * @return bool
	 */
	public static function is_not_static_page() {
		return 'page' == get_option( 'show_on_front' ) ? true : false;
	}

	/**
	 * @return array
	 */
	public static function _get_plugins() {

		if ( ! function_exists( 'get_plugins' ) ) {
			require_once ABSPATH . 'wp-admin/includes/plugin.php';
		}

		return get_plugins();

	}

	/**
	 * @param $slug
	 *
	 * @return mixed
	 */
	public static function _get_plugin_basename_from_slug( $slug ) {

		if ( empty( self::$plugins ) ) {
			self::$plugins = array_keys( self::_get_plugins() );
		}

		$keys = self::$plugins;
		foreach ( $keys as $key ) {
			if ( preg_match( '|^' . $slug . '/|', $key ) ) {
				return $key;
			}
		}

		return $slug;
	}

	/**
	 * @param $slug
	 *
	 * @return bool
	 */
	public static function check_plugin_is_installed( $slug ) {
		$plugin_path = self::_get_plugin_basename_from_slug( $slug );
		if ( file_exists( ABSPATH . 'wp-content/plugins/' . $plugin_path ) ) {
			return true;
		}

		return false;
	}

	/**
	 * @param $slug
	 *
	 * @return bool
	 */
	public static function check_plugin_is_active( $slug ) {
		$plugin_path = self::_get_plugin_basename_from_slug( $slug );
		if ( file_exists( ABSPATH . 'wp-content/plugins/' . $plugin_path ) ) {
			include_once( ABSPATH . 'wp-admin/includes/plugin.php' );

			return is_plugin_active( $plugin_path );
		}
	}

}