<?php if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly ?>
<?php

// ==========================================================================================================
// In this page all the redirect function will start to work in order to redirect user to the correct page
// ==========================================================================================================

    // ------------------------------------------------
    // this function will allow us to do 301 redirections
    // $do_redirect is the path that we want to redirect the page to
    // ------------------------------------------------

    function yydev_redirect_redirection_redirect_301($do_redirect) {

        header('Cache-Control: no-store, no-cache, must-revalidate'); // trying to stop the browser from saving the redirect
        header ('HTTP/1.1 301 Moved Permanently');
        header ('Location: ' . $do_redirect);
        exit();

    } // function yydev_redirect_redirection_redirect_301($do_redirect) {


    // ------------------------------------------------
    // this function will allow us to do 302 redirections
    // $do_redirect is the path that we want to redirect the page to
    // ------------------------------------------------

    function yydev_redirect_redirection_redirect_302($do_redirect) {

        header('Cache-Control: no-store, no-cache, must-revalidate'); // trying to stop the browser from saving the redirect
        header ('HTTP/1.1 302 Found');
        header ('Location: ' . $do_redirect);
        exit();

    } // function yydev_redirect_redirection_redirect_302($do_redirect) {


    // ------------------------------------------------
    // getting the page protocol (http or https)
    // ------------------------------------------------

    function yydev_redirect_get_protocol() {
        // Set the base protocol to http
        $protocol = 'http';
        // check for https
        if ( isset( $_SERVER["HTTPS"] ) && strtolower( $_SERVER["HTTPS"] ) == "on" ) {
            $protocol .= "s";
        } // if ( isset( $_SERVER["HTTPS"] ) && strtolower( $_SERVER["HTTPS"] ) == "on" ) {
        
        return $protocol;

    } //function yydev_redirect_get_protocol() {


    // ------------------------------------------------
    // getting the full website link path
    // ------------------------------------------------

    function yydev_redirect_get_address() {
        // return the full address
        return yydev_redirect_get_protocol() . '://' . $_SERVER['HTTP_HOST'] . $_SERVER['REQUEST_URI'];
    } // function yydev_redirect_get_address() {

    
    // Getting the end of the url path (without the domain) so we can check
    // if to redirect the page to different page
    $domains_name = get_option('home');
    $url_user_request = str_ireplace($domains_name, '' , yydev_redirect_get_address()); // getting the url without the domain name
    $url_user_request = strtolower($url_user_request); // makindg english caracters not capital

    $full_url_path = strtolower(yydev_redirect_get_address());

    // removing the first / from links in case the user forgot to add it.
    $url_without_slash = rtrim($url_user_request, '/');

    $urldecode_user_request = urldecode($url_user_request); // getting the url as regular caracters if it's hebrew

    // ------------------------------------------------
    // checking if the url exists in the data base 
    // and require to be redirect to different page
    // ------------------------------------------------
    // making sure it's not the home page
    if(!empty($url_user_request)) {
        
        // checking if there are database lines with the redirect similar to the corrent url
        $check_if_redirect_exists = $wpdb->get_results("SELECT * FROM " . $yydev_secondary_table_name . " WHERE request_url = '{$url_user_request}' OR request_url = '{$full_url_path}' OR request_url = '{$url_without_slash}' OR request_url = '{$urldecode_user_request}'");

        // if there are url that require redirection 
        if( count($check_if_redirect_exists) > 0 ) {

            foreach($check_if_redirect_exists as $check_redirecting) {

                $redirects_acmount = $check_redirecting->redirects_amount;
                $new_redirects_acmount = $redirects_acmount + 1;

                $current_request_url =  $check_redirecting->request_url;
                $request_url = str_ireplace($domains_name, '' , $current_request_url); // getting the url without the domain name
                $request_url = strtolower($current_request_url); // makindg english caracters not capital
                $request_url_with_slash = $request_url;
                $request_url = rtrim($current_request_url, '/'); // removing white space and the slash at the end of the link

                $urldecode_request_url = urldecode($request_url); // getting the url as regular caracters if it's hebrew
                $urldecode_request_url_with_slash = urldecode($request_url) . "/";

                // ------------------------------------------------
                // maksing sure the that $url_user_request is exactly the same as $request_url
                // ------------------------------------------------

                if( ($request_url === $url_user_request) || ($request_url === $url_without_slash) || ($request_url_with_slash === $full_url_path) || ($urldecode_user_request === $urldecode_request_url) || ($urldecode_user_request === $urldecode_request_url_with_slash) ) {

                    $destination_url = $check_redirecting->destination_url;

                    // checking if the destination url is full url with http:// or https://
                    // and if not we will add the website domain to the destination url
                    if( !strstr($destination_url, "http://") && !strstr($destination_url, "https://") ) {
                        $destination_url = $domains_name . $destination_url;
                    } // if( !strstr($destination_url, "http://") && !strstr($destination_url, "https://") ) {

                    // ------------------------------------------------
                    // checking which redirection the user choose 301 or
                    // 302 and redirect the user to the correct path
                    // ------------------------------------------------

                    $redirect_type = $check_redirecting->redirect_type;

                    if($redirect_type === "301") {

                        // update the redirections amount
                        $wpdb->update( $yydev_secondary_table_name, array('redirects_amount'=>$new_redirects_acmount), array('id'=>$check_redirecting->id), array('%d') );
                        
                        yydev_redirect_redirection_redirect_301($destination_url);

                    } // if($redirect_type === "301") {

                    if($redirect_type === "302") {

                        // update the redirections amount
                        $wpdb->update( $yydev_secondary_table_name, array('redirects_amount'=>$new_redirects_acmount), array('id'=>$check_redirecting->id), array('%d') );

                        yydev_redirect_redirection_redirect_302($destination_url);

                    } // if($redirect_type === "302") {

                } // if( ($request_url === $url_user_request) || ($urldecode_user_request === $urldecode_request_url) ) {

            } // foreach($check_if_redirect_exists as $check_redirecting) {

        } // if( count($check_if_redirect_exists) > 0 ) {


    } // if(!empty($url_user_request)) {

?>