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<?php

/**
 * Class for managing landing page activation routines
 * @package LandingPages
 * @subpackage Activation
 */

class Landing_Pages_Activation {

    static $version_wp;
    static $version_php;
    static $version_cta;
    static $version_leads;
    static $version_lpah;

    /**
     * Initiate class
     */
    public function __construct() {
        self::load_hooks();
    }

    /**
     * load supporting hooks and filters
     */
    public static function load_hooks() {
        if (!is_admin()) {
            return;
        }

        /* Add listener for unset permalinks  */
        add_action('admin_notices', array( __CLASS__ , 'permastruct_check' ) );

        /** add listener for permlaink flush command  */
        add_action('admin_init', array( __CLASS__ , 'flush_permalinks' ) , 11 );

        /* Add listener for uncompleted upgrade routines */
        add_action( 'admin_init' , array( 'Landing_Pages_Activation' , 'run_upgrade_routine_checks' ) );

    }

    public static function activate() {
        self::load_static_vars();
        self::run_version_checks();
        self::activate_plugin();
        self::run_updates();
    }

    public static function deactivate() {
        global $wp_rewrite;
        $wp_rewrite->flush_rules();
    }

    public static function load_static_vars() {

        self::$version_wp = '3.6';
        self::$version_php = '5.2';
        self::$version_cta = '1.2.1';
        self::$version_leads = '1.2.1';
        self::$version_lpah = '1.0.8';
    }

    public static function activate_plugin() {

        /* Update DB Markers for Plugin */
        self::store_version_data();

        /* Set Default Settings */
        self::set_default_settings();

        /* Activate shared components */
        self::activate_shared();

        /* Run additional actions */
        do_action( 'activate_landing_pages' );

    }

    /* This method loads public methods from the Landing_Pages_Activation_Update_Routines class and automatically runs them if they have not been run yet.
     * We use transients to store the data, which may not be the best way but I don't have to worry about save/update/create option and the auto load process
    */

    public static function run_updates() {

        /* Get list of updaters from Landing_Pages_Activation_Update_Routines class */
        $updaters = get_class_methods('Landing_Pages_Activation_Update_Routines');

        /* Get transient list of completed update processes */
        $completed = ( get_option( 'lp_completed_upgrade_routines' ) ) ?  get_option( 'lp_completed_upgrade_routines' ) : array();

        /* Get the difference between the two arrays */
        $remaining = array_diff( $updaters , $completed );

        /* Loop through updaters and run updaters that have not been ran */
        foreach ( $remaining as $updater ) {

            Landing_Pages_Activation_Update_Routines::$updater();
            $completed[] = $updater;

        }

        /* Update this transient value with list of completed upgrade processes */
        update_option( 'lp_completed_upgrade_routines' , $completed );

    }

    /**
    *  This method checks if there are upgrade routines that have not been executed yet and notifies the administror if there are
    *
    */
    public static function run_upgrade_routine_checks() {

        /* Listen for a manual upgrade call */
        if (isset($_GET['plugin_action']) && $_GET['plugin_action'] == 'upgrade_routines' && $_GET['plugin'] =='landing-pages' ) {
            self::run_updates();
            wp_redirect(wp_get_referer());
            exit;
        }

        /* Get list of updaters from Landing_Pages_Activation_Update_Routines class */
        $updaters = get_class_methods('Landing_Pages_Activation_Update_Routines');

        /* Get transient list of completed update processes */
        $completed = ( get_option( 'lp_completed_upgrade_routines' ) ) ?  get_option( 'lp_completed_upgrade_routines' ) : array();

        /* Get the difference between the two arrays */
        $remaining = array_diff( $updaters , $completed );

        if (count($remaining)>0) {
            add_action( 'admin_notices', array( __CLASS__ , 'display_upgrade_routine_notice' ) );
        }
    }

    public static function display_upgrade_routine_notice() {
        ?>
        <div class="error">
            <p><?php _e( 'Landing Pages plugin requires a database upgrade:', 'inbound-pro' ); ?> <a href='?plugin=landing-pages&plugin_action=upgrade_routines'><?php _e('Upgrade database now' , 'inbound-pro' ); ?></a></p>
        </div>
        <?php
    }


    /* Creates transient records of past and current version data */
    public static function store_version_data() {

        $old = get_transient('lp_current_version');
        set_transient( 'lp_previous_version' , $old );
        set_transient( 'lp_current_version' , LANDINGPAGES_CURRENT_VERSION );

    }

    public static function set_default_settings() {
        add_option( 'lp_global_css', '', '', 'no' );
        add_option( 'lp_global_js', '', '', 'no' );
        add_option( 'lp_global_lp_slug', 'go', '', 'no' );
        update_option( 'lp_activate_rewrite_check', '1');

        /* Set's welcome page redirect transient */
        set_transient( '_landing_page_activation_redirect', true, 30 );
    }

    /**
    *  Tells Inbound Shared to run activation commands
    */
    public static function activate_shared() {
        update_option( 'Inbound_Activate', true );
    }

    /* Aborts activation and details
    * @param args ARRAY of message details
    */
    public static function abort_activation( $args ) {
        echo $args['title'] . '<br>';
        echo $args['message'] . '<br>';
        echo 'Details:<br>';
        print_r ($args['details']);
        echo '<br>';
        echo $args['solution'];

        deactivate_plugins( LANDINGPAGES_FILE );
        exit;
    }


    /* Checks if plugin is compatible with current server PHP version */
    public static function run_version_checks() {

        global $wp_version;

        /* Check PHP Version */
        if ( version_compare( phpversion(), self::$version_php, '<' ) ) {
            self::abort_activation(
                array(
                    'title' => 'Installation aborted',
                    'message' => __('Landing Plugin could not be installed' , 'landing-pages'),
                    'details' => array(
                                    __( 'Server PHP Version' , 'inbound-pro' ) => phpversion(),
                                    __( 'Required PHP Version' , 'inbound-pro' ) => self::$version_php
                                ),
                    'solution' => sprintf( __( 'Please contact your hosting provider to upgrade PHP to %s or greater' , 'inbound-pro' ) , self::$version_php )
                )
            );
        }

        /* Check WP Version */
        if ( version_compare( $wp_version , self::$version_wp, '<' ) ) {
            self::abort_activation( array(
                    'title' => 'Installation aborted',
                    'message' => __('Landing Plugin could not be installed' , 'landing-pages'),
                    'details' => array(
                                    __( 'WordPress Version' , 'inbound-pro' ) => $wp_version,
                                    __( 'Required WordPress Version' , 'inbound-pro' ) => self::$version_wp
                                ),
                    'solution' => sprintf( __( 'Please update landing pages to version %s or greater.' , 'inbound-pro' ) , self::$version_wp )
                )
            );
        }

        /* Check CTA Version */
        if ( defined('WP_CTA_CURRENT_VERSION') && version_compare( WP_CTA_CURRENT_VERSION , self::$version_cta , '<' ) ) {
            self::abort_activation( array(
                    'title' => 'Installation aborted',
                    'message' => __('Landing Plugin could not be installed' , 'landing-pages'),
                    'details' => array(
                                    __( 'Calls to Action Version' , 'inbound-pro' ) => WP_CTA_CURRENT_VERSION,
                                    __( 'Required Calls to Action Version' , 'inbound-pro' ) => self::$version_cta
                                ),
                    'solution' => sprintf( __( 'Please update Calls to Action to version %s or greater.' , 'inbound-pro' ) , self::$version_cta )
                )
            );
        }

        /* Check Leads Version */
        if ( defined('WPL_CURRENT_VERSION') && version_compare( WPL_CURRENT_VERSION , self::$version_leads , '<' ) ) {
            self::abort_activation( array(
                    'title' => 'Installation aborted',
                    'message' => __('Landing Plugin could not be installed' , 'landing-pages'),
                    'details' => array(
                                    __( 'Leads Version' , 'inbound-pro' ) => WPL_CURRENT_VERSION,
                                    __( 'Required Leads Version' , 'inbound-pro' ) => self::$version_leads
                                ),
                    'solution' => sprintf( __( 'Please update Leads to version %s or greater.' , 'inbound-pro' ) , self::$version_leads )
                )
            );
        }

        /* Check Extension Version */
        if ( defined('LP_HOMEPAGE_CURRENT_VERSION') && version_compare( LP_HOMEPAGE_CURRENT_VERSION , self::$version_lpah , '<' ) ) {
            self::abort_activation( array(
                    'title' => 'Installation aborted',
                    'message' => __('Landing Plugin could not be installed' , 'landing-pages'),
                    'details' => array(
                                    __( 'Extension: Landing Page as Homepage' , 'inbound-pro' ) => LP_HOMEPAGE_CURRENT_VERSION,
                                    __( 'Required extension version' , 'inbound-pro' ) => self::$version_lpah
                                ),
                    'solution' => sprintf( __( 'Please update extension to version %s or greater.' , 'inbound-pro' ) , self::$version_lpah )
                )
            );
        }

    }

    /**
     * flush permalinks
     */
    public static function flush_permalinks() {

        if ( !get_option( 'lp_activate_rewrite_check' ) ) {
            return;
        }

        flush_rewrite_rules( true );
        delete_option( 'lp_activate_rewrite_check' );
    }

    /**
     *  check for 'default' permalinks and warn
     */
    public static function permastruct_check() {
        if ( '' == get_option( 'permalink_structure' ) ) {
            ?>
            <div class="error">
                <p><?php _e( 'Landing Pages plugin requires you to use a non default permlaink structure. Please head into your pemalink settings and choose an option besides \'default\'.' , 'landing-pages'); ?></p>
            </div>
        <?php
        }
    }
}

/* Add Activation Hook */
register_activation_hook( LANDINGPAGES_FILE , array( 'Landing_Pages_Activation' , 'activate' ) );
register_deactivation_hook( LANDINGPAGES_FILE , array( 'Landing_Pages_Activation' , 'deactivate' ) );

new Landing_Pages_Activation;