<?php
// Exit if called directly
if (!defined('ABSPATH')) {
    exit();
}

if (!class_exists('LR_Common')) {

    /**
     * This class contains method which are used by admin as well as front
     */
    class LR_Common {

        /**
         * Check if ID can be link or not. if yes the link account.
         */
        public static function link_account_if_possible() {
            global $socialLoginObject, $wpdb, $user_ID;

            $loginRadiusMappingData = array();

            if (isset($_REQUEST['token']) && is_user_logged_in()) {

                try {
                    $loginRadiusUserprofile = $socialLoginObject->getUserProfiledata($_REQUEST['token']);
                } catch (\LoginRadiusSDK\LoginRadiusException $e) {
                    // Error Handling

                    if ($loginRadiusSettings['enable_degugging'] == '0') {
                        // if debugging is off and Social profile not recieved, redirect to home page.
                        wp_redirect(site_url());
                        exit();
                    } else {
                        $loginRadiusUserprofile = null;
                        $message = isset($e->getErrorResponse()->description) ? $e->getErrorResponse()->description : $e->getMessage();
                        error_log($message);
                        // If debug option is set and Social Profile not retrieved
                        Login_Helper::login_radius_notify($message, 'isProfileNotRetrieved');
                        return;
                    }
                }

                $loginRadiusMappingData['id'] = (!empty($loginRadiusUserprofile->ID) ? $loginRadiusUserprofile->ID : '' );
                $loginRadiusMappingData['provider'] = (!empty($loginRadiusUserprofile->Provider) ? $loginRadiusUserprofile->Provider : '' );
                $loginRadiusMappingData['thumbnail'] = (!empty($loginRadiusUserprofile->ThumbnailImageUrl) ? trim($loginRadiusUserprofile->ThumbnailImageUrl) : '' );
                if (empty($loginRadiusMappingData['thumbnail']) && $loginRadiusMappingData['provider'] == 'facebook') {
                    $loginRadiusMappingData['thumbnail'] = 'http://graph.facebook.com/' . $loginRadiusMappingData['id'] . '/picture?type=large';
                }
                $loginRadiusMappingData['pictureUrl'] = (!empty($loginRadiusUserprofile->ImageUrl) ? trim($loginRadiusUserprofile->ImageUrl) : '' );
                $wp_user_id = $wpdb->get_var($wpdb->prepare('SELECT user_id FROM ' . $wpdb->usermeta . ' WHERE meta_key="loginradius_provider_id" AND meta_value = %s', $loginRadiusMappingData['id']));

                $checkCurrentProvider = $wpdb->get_var($wpdb->prepare('SELECT meta_value FROM ' . $wpdb->usermeta . ' WHERE user_id=%s AND  meta_key = "loginradius_provider"', $user_ID));

                // var_dump($checkCurrentProvider);die;


                if (!empty($wp_user_id)) {

                    // Check if verified field exist or not.
                    $loginRadiusVfyExist = $wpdb->get_var($wpdb->prepare('SELECT user_id FROM ' . $wpdb->usermeta . ' WHERE user_id = %d AND meta_key = "loginradius_isVerified"', $wp_user_id));
                    if (!empty($loginRadiusVfyExist)) {
                        // if verified field exists
                        $loginRadiusVerify = $wpdb->get_var($wpdb->prepare('SELECT meta_value FROM ' . $wpdb->usermeta . ' WHERE user_id = %d AND meta_key = "loginradius_isVerified"', $wp_user_id));
                        if ($loginRadiusVerify != '1') {
                            self::link_account($user_ID, $loginRadiusMappingData['id'], $loginRadiusMappingData['provider'], $loginRadiusMappingData['thumbnail'], $loginRadiusMappingData['pictureUrl']);
                            return '1';
                        } else {
                            //account already mapped
                            return '0';
                        }
                    } else {
                        return '0';
                    }
                } else {



                    $checkLinking = $wpdb->get_results('SELECT * FROM ' . $wpdb->usermeta . ' WHERE meta_key="loginradius_' . $loginRadiusUserprofile->Provider . '_id" AND user_id=' . $user_ID . '');

                    if (isset($checkLinking) && empty($checkLinking[0]->meta_key) && empty($checkLinking[0]->user_id) && $checkCurrentProvider != $loginRadiusMappingData['provider']) {

                        //if($checkCurrentProvider != $loginRadiusMappingData['provider']){

                        $loginRadiusMappingProvider = $loginRadiusMappingData['provider'];

                        $wp_user_lrid = $wpdb->get_var($wpdb->prepare('SELECT user_id FROM ' . $wpdb->usermeta . ' WHERE meta_key="' . $loginRadiusMappingProvider . 'Lrid" AND meta_value = %s', $loginRadiusMappingData['id']));

                        if (!empty($wp_user_lrid)) {
                            $lrVerified = get_user_meta($wp_user_lrid, $loginRadiusMappingProvider . 'LrVerified', true);
                            if ($lrVerified == '1') {
                                // Check if lrid is the same that verified email.
                                // account already mapped
                                return '0';
                            } else {
                                // map account
                                self::link_account($user_ID, $loginRadiusMappingData['id'], $loginRadiusMappingData['provider'], $loginRadiusMappingData['thumbnail'], $loginRadiusMappingData['pictureUrl']);
                                return '1';
                            }
                        } else {
                            // map account
                            self::link_account($user_ID, $loginRadiusMappingData['id'], $loginRadiusMappingData['provider'], $loginRadiusMappingData['thumbnail'], $loginRadiusMappingData['pictureUrl']);
                            return '1';
                        }
                    } else {
                        return '2';
                    }
                }
            }
        }

        /**
         * Get current protocol ( http OR https )
         */
        public static function get_protocol() {
            if (isset($_SERVER['HTTPS']) && !empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] != 'off') {
                return 'https://';
            } else {
                return 'http://';
            }
        }

        /**
         * Update usermeta to store linked account information
         */
        public static function link_account($id, $lrid, $provider, $thumb, $pictureUrl) {

            add_user_meta($id, 'loginradius_provider_id', $lrid);
            add_user_meta($id, 'loginradius_mapped_provider', $provider);
            add_user_meta($id, 'loginradius_' . $provider . '_id', $lrid);
            if ($thumb != '') {
                add_user_meta($id, 'loginradius_' . $lrid . '_thumbnail', $thumb);
            }
            if ($pictureUrl != '') {
                add_user_meta($id, 'loginradius_' . $lrid . '_picture', $pictureUrl);
            }
        }

        /**
         * Check if scripts are to be loaded in footer according to plugin option
         */
        public static function scripts_in_footer_enabled() {
            global $loginradius_api_settings;

            if (isset($loginradius_api_settings['scripts_in_footer']) && $loginradius_api_settings['scripts_in_footer'] == '1') {
                return true;
            }
            return false;
        }

        /**
         * Perform linking operation and return parameters if account mapped or not accordingly
         */
        public static function perform_linking_operation() {
            $linked = LR_Common::link_account_if_possible();

            $redirectionUrl = LR_Common::get_protocol() . htmlspecialchars($_SERVER['HTTP_HOST']) . remove_query_arg('lrlinked');
            if (strpos($redirectionUrl, '?') !== false) {

                $redirectionUrl .= '&';
            } else {

                $redirectionUrl .= '?';
            }
            $redirectionUrl .= 'lrlinked=' . $linked;
            wp_redirect($redirectionUrl);
            exit();
        }

        public static function enqueue_login_scripts() {
            global $lr_custom_interface_settings;
            wp_enqueue_script('lr-sdk');
            if (isset($lr_custom_interface_settings['custom_interface']) && $lr_custom_interface_settings['custom_interface'] == '1') {
                wp_enqueue_script('lr-custom-interface');
            } else {
                wp_enqueue_script('lr-social-login');
            }
        }

        /**
         * Loading Login Script for loggedin user to provide account linking
         */
        public static function load_login_script($isLinkingWidget = false) {
            global $loginRadiusSettings, $loginradius_api_settings, $lr_custom_interface_settings, $lr_raas_settings;
            if (!isset($loginradius_api_settings['raas_enable']) || $loginradius_api_settings['raas_enable'] != 1) {
                $loginradius_api_settings['LoginRadius_apikey'] = isset($loginradius_api_settings['LoginRadius_apikey']) ? trim($loginradius_api_settings['LoginRadius_apikey']) : '';
                if (!class_exists('Login_Helper')) {
                    require_once LR_ROOT_DIR . 'lr-social-login/public/inc/login/class-login-helper.php';
                }
                $register = Login_Helper::is_register_page();

                $location = urlencode(trim(site_url(), '/')) . '/'; //urlencode(Login_Helper::get_redirect_url('', $register));
                if (isset($lr_custom_interface_settings['custom_interface']) && $lr_custom_interface_settings['custom_interface'] == '1') {
                    if (isset($lr_custom_interface_settings['selected_providers']) && $lr_custom_interface_settings['selected_providers'] != '') {
                        $selected_providers = implode('\',\'', $lr_custom_interface_settings['selected_providers']);
                    }
                    $interface_url = LR_ROOT_URL . 'lr-custom-interface/assets/images/custom_interface/';
                    if (is_multisite()) {
                        $interface_url .= get_current_blog_id() . '/';
                    }
                    ?>
                    <script type="text/javascript">
                        function detectmob() {
                            if (navigator.userAgent.match(/Android/i) || navigator.userAgent.match(/webOS/i) || navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPad/i) || navigator.userAgent.match(/iPod/i) || navigator.userAgent.match(/BlackBerry/i) || navigator.userAgent.match(/Windows Phone/i)) {
                                return true;
                            } else {
                                return false;
                            }
                        }
                    </script>
                    <script type="text/javascript">
                        jQuery(document).ready(function () {
                            $LRIC.util.ready(function () {
                                var options = {};
                                options.apikey = "<?php echo isset($loginradius_api_settings['LoginRadius_apikey']) ? trim($loginradius_api_settings['LoginRadius_apikey']) : ''; ?>";
                                options.appname = "<?php echo isset($loginradius_api_settings['sitename']) ? $loginradius_api_settings['sitename'] : ''; ?>";
                    <?php if (isset($lr_custom_interface_settings['selected_providers'])) { ?>
                                    options.providers = [<?php echo "'" . $selected_providers . "'"; ?>];
                    <?php } ?>
                                if (detectmob()) {
                                    options.templatename = "loginradiuscustom_tmpl_mobile";
                                } else {
                                    options.templatename = "loginradiuscustom_tmpl";
                                }
                                $LRIC.renderInterface("interfacecontainerdiv", options);
                            });
                        });
                    </script>
                    <script type="text/html" id="loginradiuscustom_tmpl">
                        <a class="lr_custom_provider" onclick="return $LRIC.util.openWindow('<%=Endpoint%>&callback=<?php echo $location ?>&is_access_token=true');"><img src="<?php echo $interface_url; ?><%=Name.toLowerCase() %>.png" /></a>
                    </script>
                    <script type="text/html" id="loginradiuscustom_tmpl_mobile">
                        <a class="lr_custom_provider" onclick="return $LRIC.util.openWindow('<%=Endpoint%>&callback=<?php echo $location ?>&callbacktype=hash&isParentWindowLogin=true&is_access_token=true');"><img src="<?php echo $interface_url; ?><%=Name.toLowerCase() %>.png" /></a>
                    </script>
                    <?php
                } else {
                    ?>
                    <script type="text/javascript">
                        function detectmob() {
                            if (navigator.userAgent.match(/Android/i) || navigator.userAgent.match(/webOS/i) || navigator.userAgent.match(/iPhone/i) || navigator.userAgent.match(/iPad/i) || navigator.userAgent.match(/iPod/i) || navigator.userAgent.match(/BlackBerry/i) || navigator.userAgent.match(/Windows Phone/i)) {
                                return true;
                            } else {
                                return false;
                            }
                        }
                    </script>
                    <script type="text/javascript">
                        jQuery(document).ready(function () {
                            var loginRadiusOptions = {};
                            loginRadiusOptions.login = true;
                            //Disabling console log messages - please delete when api has been updated
                            LoginRadius_SocialLogin.console.log = function () {};
                            LoginRadius_SocialLogin.util.ready(function () {
                                $ui = LoginRadius_SocialLogin.lr_login_settings;
                                $ui.interfacesize = '';
                                $ui.apikey = "<?php echo $loginradius_api_settings['LoginRadius_apikey']; ?>";
                                $ui.callback = "<?php echo $location; ?>";
                                $ui.lrinterfacecontainer = "interfacecontainerdiv";
                                $ui.is_access_token = true;
                                if (detectmob()) {
                                    $ui.callbacktype = "hash";
                                    $ui.isParentWindowLogin = true;
                                }
                    <?php
                    if (isset($loginRadiusSettings["LoginRadius_interfaceSize"]) && $loginRadiusSettings["LoginRadius_interfaceSize"] == "small") {
                        echo '$ui.interfacesize ="small";';
                    }
                    if (isset($loginRadiusSettings['LoginRadius_numColumns']) && trim($loginRadiusSettings['LoginRadius_numColumns']) != '') {
                        echo '$ui.noofcolumns = ' . trim($loginRadiusSettings['LoginRadius_numColumns']) . ';';
                    }
                    if (isset($loginRadiusSettings['LoginRadius_backgroundColor'])) {
                        echo '$ui.lrinterfacebackground = "' . trim($loginRadiusSettings['LoginRadius_backgroundColor']) . '";';
                    }
                    ?>
                                LoginRadius_SocialLogin.init(loginRadiusOptions);
                            });
                        });
                    </script>
                <?php }
                ?>
                <script type="text/javascript">
                    jQuery(document).ready(function () {
                        LoginRadiusSDK.setLoginCallback(function () {
                            var form = document.createElement('form');
                <?php if (basename(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH)) == 'profile.php') { ?>
                                form.action = window.location.href;
                <?php } else { ?>
                                form.action = "<?php echo urldecode($location); ?>";
                <?php } ?>

                            form.method = 'POST';
                            var hiddenToken = document.createElement('input');
                            hiddenToken.type = 'hidden';
                            hiddenToken.value = LoginRadiusSDK.getToken();
                            hiddenToken.name = "token";
                            form.appendChild(hiddenToken);
                            document.body.appendChild(form);
                            form.submit();
                        });
                    });
                </script>
                <?php
            }
        }

        /**
         * Check linking parameters and display message if account linked successfully or not
         */
        public static function check_linking_status_parameters() {
            $html = '';
            if (isset($_GET['lrlinked'])) {
                if ($_GET['lrlinked'] == 1) {
                    $html .= '<div id="loginRadiusSuccess" style="background-color: #FFFFE0; border:1px solid #E6DB55; padding:5px; margin:5px; color: #000">';
                    $html .= __('Account linked successfully', 'lr-plugin-slug');
                } elseif ($_GET['lrlinked'] == 'false') {
                    $html .= '<div id="loginRadiusSuccess" style="background-color: #FFFFE0; border:1px solid #E6DB55; padding:5px; margin:5px; color: #000">';
                    $html .= __('Account unlinked successfully', 'lr-plugin-slug');
                } elseif ($_GET['lrlinked'] == '2') {
                    $html .= '<div id="loginRadiusError" style="background-color: #FFEBE8; border:1px solid #CC0000; padding:5px; margin:5px; color: #000;">';
                    $html .= __('Cannot link same provider', 'lr-plugin-slug');
                } else {
                    $html .= '<div id="loginRadiusError" style="background-color: #FFEBE8; border:1px solid #CC0000; padding:5px; margin:5px; color: #000;">';
                    $html .= __('This account is already mapped', 'lr-plugin-slug');
                }

                $html .= '</div>';
                return $html;
            }
        }

        /**
         * Display connectd/linked providers on user wp profile page
         */
        public static function get_connected_providers_list() {
            global $user_ID;
            $html = '';
            $loginRadiusMappings = get_user_meta($user_ID, 'loginradius_mapped_provider', false);
            $loginRadiusMappings = array_unique($loginRadiusMappings);
            $connected = false;
            $loginRadiusLoggedIn = get_user_meta($user_ID, 'loginradius_current_id', true);
            $totalAccounts = get_user_meta($user_ID, 'loginradius_provider_id');

            $location = LR_Common::get_protocol() . $_SERVER['HTTP_HOST'] . remove_query_arg(array('lrlinked', 'loginradius_linking', 'loginradius_post', 'loginradius_invite', 'loginRadiusMappingProvider', 'loginRadiusMap', 'loginRadiusMain'));

            if (count($loginRadiusMappings) > 0) {
                foreach ($loginRadiusMappings as $map) {
                    $loginRadiusMappingId = get_user_meta($user_ID, 'loginradius_' . $map . '_id');

                    if (count($loginRadiusMappingId) > 0) {
                        foreach ($loginRadiusMappingId as $tempId) {
                            $html .= '<tr>';
                            $isconnected = false;
                            if ($loginRadiusLoggedIn == $tempId) {
                                $append = '<span style=\'color:green\'>Currently </span>';
                                $connected = true;
                                $isconnected = true;
                            } else {
                                $append = '';
                            }

                            $html .= '<td>' . $append;
                            $html .= __('Connected with', 'lr-plugin-slug');
                            $html .= '<strong> ' . ucfirst($map) . '</strong><img src=\'' . LR_ROOT_URL . 'lr-social-login/assets/images/linking/' . $map . '.png' . '\' align=\'absmiddle\' style=\'margin-left:5px\' /></td><td>';
                            if ((count($totalAccounts) > 1) && !$isconnected) {

                                $html .= '<a href=' . $location . ( strpos($location, '?') !== false ? '&' : '?' ) . 'loginRadiusMap=' . $tempId . '&loginRadiusMappingProvider=' . $map . ' ><input type=\'button\' class=\'button-primary\' value="' . __('Remove', 'lr-plugin-slug') . '" /></a>';
                            }
                            $html .= '</td></tr>';
                        }
                    }
                }
            }
            $map = get_user_meta($user_ID, 'loginradius_provider', true);
            if ($map != false) {
                $html .= '<tr>';
                $isconnected = false;
                $tempId = $loginRadiusLoggedIn;

                $append = !$connected ? '<span style=\'color:green\'>Currently </span>' : '';


                $html .= '<td>' . $append;
                $html .= __('Connected with', 'lr-plugin-slug');
                $html .= '<strong> ' . ucfirst($map) . '</strong> <img src=\'' . LR_ROOT_URL . 'lr-social-login/assets/images/linking/' . $map . '.png' . '\' align=\'absmiddle\' style=\'margin-left:5px\' /></td><td>';

                if (count($totalAccounts) > 1 && $isconnected) {
                    $html .= '<a href=' . $location . ( strpos($location, '?') !== false ? '&' : '?') . 'loginRadiusMain=1&loginRadiusMap=' . $tempId . '&loginRadiusMappingProvider=' . $map . ' ><input type="button" class="button-primary" value="' . __('Remove', 'lr-plugin-slug') . '" /></a>';
                }
                $html .= '</td></tr>';
            }
            return $html;
        }

        /**
         * Display provider , user is currently connected with
         */
        public static function display_currently_connected_provider() {
            global $user_ID;
            $loginRadiusLoggedIn = get_user_meta($user_ID, 'loginradius_current_id', true);
            $totalAccounts = get_user_meta($user_ID, 'loginradius_provider_id');
            $location = LR_Common::get_protocol() . $_SERVER['HTTP_HOST'] . remove_query_arg(array('lrlinked', 'loginradius_linking', 'loginradius_post', 'loginradius_invite', 'loginRadiusMappingProvider', 'loginRadiusMap', 'loginRadiusMain'));
            $html = '';
            $map = get_user_meta($user_ID, 'loginradius_provider', true);
            if ($map != false) {
                $html .= '<tr>';
                $tempId = $loginRadiusLoggedIn;
                $append = '<span style=\'color:green\'>Currently </span>';
                $html .= '<td>' . $append;
                $html .= __('Connected with', 'lr-plugin-slug');
                $html .= '<strong> ' . ucfirst($map) . '</strong> <img src=\'' . LR_ROOT_URL . 'lr-social-login/assets/images/linking/' . $map . '.png' . '\' align=\'absmiddle\' style=\'margin-left:5px\' /></td><td>';
                if (count($totalAccounts) != 1 && $connected) {
                    $html .= '<a href=' . $location . (strpos($location, '?') !== false ? '&' : '?') . 'loginRadiusMain=1&loginRadiusMap=' . $tempId . '&loginRadiusMappingProvider=' . $map . ' ><input type="button" class="button-primary" value="' . __('Remove', 'lr-plugin-slug') . '" /></a>';
                }
                $html .= '</td></tr>';
            }
            return $html;
        }

        /**
         * Function which sends email on user activation to admin and users
         */
        public static function login_radius_send_verification_email($loginRadiusEmail, $loginRadiusKey, $loginRadiusProvider = '', $emailType = '', $username = '') {

            $loginRadiusSubject = '';
            $loginRadiusMessage = '';
            switch ($emailType) {
                case "activation":
                    $loginRadiusSubject = '[' . htmlspecialchars(trim(get_option('blogname'))) . '] AccountActivation';
                    $loginRadiusMessage = 'Hi ' . $username . ", \r\n" .
                            'Your account has been activated at ' . site_url() . '. Now you can login to your account.';
                    break;
                case "admin notification":
                    $user = get_userdata($username);
                    $loginRadiusSubject = '[' . htmlspecialchars(trim(get_option('blogname'))) . '] New User Registration';
                    $loginRadiusMessage = 'New user registration on your site ' . htmlspecialchars(trim(get_option('blogname'))) . ": \r\n" .
                            'Username: ' . $user->user_login . " \r\n" .
                            'E-mail: ' . $user->user_email . '';
                    break;
                default:
                    $loginRadiusSubject = '[' . htmlspecialchars(trim(get_option('blogname'))) . '] Email Verification';
                    $loginRadiusUrl = site_url() . '?loginRadiusVk=' . $loginRadiusKey;
                    if (!empty($loginRadiusProvider)) {
                        $loginRadiusUrl .= '&loginRadiusProvider=' . $loginRadiusProvider;
                    }
                    $loginRadiusMessage = "Please click on the following link or paste it in browser to verify your email \r\n" . $loginRadiusUrl;
                    break;
            }
            $headers = "MIME-Version: 1.0\n" .
                    "Content-Type: text/plain; charset='" .
                    get_option('blog_charset') . "\"\n" .
                    'From: <no-reply@loginradius.com>';
            wp_mail($loginRadiusEmail, $loginRadiusSubject, $loginRadiusMessage, $headers);
        }

    }

}