<?php

namespace Phylax\Plugin;

( defined('ABSPATH') && defined( __NAMESPACE__ . '\PLUGIN_DIR' ) ) or die('Run me within WordPress environment.');

/**
 * This class is used when user triggers activation, deactivation
 * or uninstall actions.
 */
class Installer {

    /**
     * This method must be static, because of WordPress requirements.
     * Here we will rewrite old setup options if available... This
     * will use only version 0.5 setup, because all older versions
     * aren't public
     * @return  void
     */
    public static function activation() {
        # let's see if we've got 0.5 setup here
        $o = get_option('wordpress_lnpo_ah');
        if ( is_string( $o ) && ( strlen( $o ) > 4 ) && ( substr( $o, 0, 4 ) == 'a:2:' ) ) {
            $o = @unserialize( $o );
            if ( is_array( $o ) && isset( $o['GoogleID'] ) && isset( $o['HideForAdmins'] ) ) {
                # apparently, we've got something here
                $options = array(
                    'GoogleID' => $o['GoogleID'],
                    'HideInAdmin' => $o['HideForAdmins'],
                    'HideForLogged' => '0',
                    'IntoFooter' => '0',
                );
                Config::save_options( $options );
            }
        }
        # now it is safe to remove all old options, if existed
        self::remove_old_options();
    }

    /**
     * This method must be static, because of WordPress requirements.
     * At this time, there is nothing we can do here.
     * @return  void
     */
    public static function deactivation() {
    }

    /**
     * This method must be static, because of WordPress requirements.
     * Use this method to remove current options
     * @return  void
     */
    public static function uninstall() {
        delete_option( Config::OPTION_NAME );
    }

    /**
     * This method will remove all previous options (0.1-0.5),
     * notice that current options will be safe
     * @return  bool    Always returns true
     */
    public static function remove_old_options() {
        # version 0.1/0.2
        delete_option('wordpress_ln_gah_ad');
        delete_option('wordpress_ln_gah_id');
        # version 0.3
        delete_option('wordpress_ln_p_ah_ga_id');
        delete_option('wordpress_ln_p_ah_add_for_admins');
        # version 0.4.1
        delete_option('wordpress_ln_p_ah');
        # version 0.5
        delete_option('wordpress_lnpo_ah');
        return true;
    }
}

register_activation_hook( PLUGIN_FILE, array( 'Phylax\Plugin\Installer', 'activation' ) );
register_deactivation_hook( PLUGIN_FILE, array( 'Phylax\Plugin\Installer', 'deactivation' ) );
register_uninstall_hook( PLUGIN_FILE, array( 'Phylax\Plugin\Installer', 'uninstall' ) );

# EOF