<?php

class UM_Permalinks {

	function __construct() {
	
		global $wp;
		
		$this->core = get_option('um_core_pages');
		
		add_action('init',  array(&$this, 'check_for_querystrings'), 1);
		
		add_action('init',  array(&$this, 'activate_account_via_email_link'), 1);
		
		$this->current_url = $this->get_current_url();
	
	}
	
	/***
	***	@Get query as array
	***/
	function get_query_array() {
		$parts = parse_url( $this->get_current_url() );
		parse_str($parts['query'], $query);
		return $query;
	}

	/***
	***	@Get current URL anywhere
	***/
	function get_current_url( $no_query_params = false ) {
		global $post;

		if ( is_front_page() ) :
			$page_url = home_url();
		else :
			$page_url = 'http';

		if ( isset( $_SERVER["HTTPS"] ) && $_SERVER["HTTPS"] == "on" )
			$page_url .= "s";
			$page_url .= "://";
			if ( isset( $_SERVER["SERVER_PORT"] ) && $_SERVER["SERVER_PORT"] != "80" )
				$page_url .= $_SERVER["SERVER_NAME"].":".$_SERVER["SERVER_PORT"].$_SERVER["REQUEST_URI"];
			else
				$page_url .= $_SERVER["SERVER_NAME"].$_SERVER["REQUEST_URI"];
		endif;

		if ( $no_query_params == true ) {
			$page_url = strtok($page_url, '?');
		}

		return apply_filters( 'um_get_current_page_url', $page_url );
	}
	
	/***
	***	@activates an account via email
	***/
	function activate_account_via_email_link(){
		global $ultimatemember;
		
		if ( isset($_REQUEST['act']) && $_REQUEST['act'] == 'activate_via_email' && isset($_REQUEST['hash']) && strlen($_REQUEST['hash']) == 30 &&
			isset($_REQUEST['user_id']) && is_numeric($_REQUEST['user_id']) ) { // valid token
				
				um_fetch_user( $_REQUEST['user_id'] );
				
				if ( um_user('account_status') != 'awaiting_email_confirmation' ) wp_die('The activation link you used is invalid or has expired.');
				
				if ( $_REQUEST['hash'] != um_user('account_secret_hash') ) wp_die('The secret key provided does not match this one for the user.');

				$ultimatemember->user->approve();
				
				um_reset_user();
				
		}
		
	}
	
	/***
	***	@makes an activate link for any user
	***/
	function activate_url(){
		global $ultimatemember;
		
		if ( !um_user('account_secret_hash') ) return false;
		
		$url = add_query_arg( 'act', 'activate_via_email', home_url() );
		$url = add_query_arg( 'hash', um_user('account_secret_hash'), $url );
		$url = add_query_arg( 'user_id', um_user('ID'), $url );
		
		return $url;
	}
	
	/***
	***	@checks for UM query strings
	***/
	function check_for_querystrings(){
		global $ultimatemember;
		
		if ( isset($_REQUEST['message']) ) 
			$ultimatemember->shortcodes->message_mode = true;
		
		if ( isset($_REQUEST['message']) && isset($_REQUEST['uid']) )
			um_fetch_user( $_REQUEST['uid'] );
			
	}
	
	/***
	***	@add a query param to url
	***/
	function add_query( $key, $value ) {
		$this->current_url = add_query_arg( $key, $value, $this->current_url );
		return $this->current_url;
	}
	/***
	***	@remove a query param from url
	***/
	function remove_query( $key, $value ) {
		$this->current_url = remove_query_arg( $key, $this->current_url );
		return $this->current_url;
	}
	
	/***
	***	@get profile url for set user
	***/
	function profile_url() {
		global $ultimatemember;
		
		$profile_url = $this->core['user'];
		$profile_url = get_permalink($profile_url);
		
		if ( um_get_option('permalink_base') == 'user_login' ) {
			$user_in_url = $ultimatemember->user->profile['user_login'];
		}
		
		if ( um_get_option('permalink_base') == 'user_id' ) {
			$user_in_url = um_user('ID');
		}
		
		if ( um_get_option('permalink_base') == 'name' ) {
			$user_in_url = rawurlencode( strtolower( um_user('full_name') ) );
		}
		
		if ( get_option('permalink_structure') ) {
		
			$profile_url = trailingslashit( untrailingslashit( $profile_url ) );
			$profile_url = $profile_url . $user_in_url . '/';
		
		} else {
			
			$profile_url = add_query_arg( 'um_user', $user_in_url, $profile_url );
			
		}
		
		return $profile_url;
	}
	
	/***
	***	@get action url for admin use
	***/
	function admin_act_url( $action, $subaction ) {
		$url = $this->get_current_url();
		$url = add_query_arg( 'um_adm_action', $action, $url );
		$url = add_query_arg( 'sub', $subaction, $url );
		$url = add_query_arg( 'user_id', um_user('ID'), $url );
		return $url;
	}

}