<?php

namespace Duplicator\Views;

use Closure;
use DUP_Server;
use Duplicator\Core\MigrationMng;
use Duplicator\Utils\LinkManager;
use Duplicator\Libs\Snap\SnapUtil;
use Duplicator\Core\Controllers\ControllersManager;
use Duplicator\Utils\Autoloader;
use Exception;

/**
 * Admin Notices
 */
class AdminNotices
{
    const OPTION_KEY_MIGRATION_SUCCESS_NOTICE       = 'duplicator_migration_success';
    const OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL = 'duplicator_activate_plugins_after_installation';

    //TEMPLATE VALUE: This is a just a simple example for setting up quick notices
    const OPTION_KEY_NEW_NOTICE_TEMPLATE        = 'duplicator_new_template_notice';
    const OPTION_KEY_IS_ENABLE_NOTICE_DISMISSED = 'duplicator_is_enable_notice_dismissed';
    const OPTION_KEY_IS_MU_NOTICE_DISMISSED     = 'duplicator_is_mu_notice_dismissed';

    const GEN_INFO_NOTICE    = 0;
    const GEN_SUCCESS_NOTICE = 1;
    const GEN_WARNING_NOTICE = 2;
    const GEN_ERROR_NOTICE   = 3;

    /**
     * init notice actions
     *
     * @return void
     */
    public static function init()
    {
        add_action('admin_init', array(__CLASS__, 'adminInit'));
        add_action('admin_enqueue_scripts', array(__CLASS__, 'unhookThirdPartyNotices'), 99999, 1);
    }

    /**
     * init notice actions
     *
     * @return void
     */
    public static function adminInit()
    {
        $notices = array();
        if (is_multisite()) {
            $noCapabilitiesNotice = is_super_admin() && !current_user_can('export');
        } else {
            $noCapabilitiesNotice = in_array('administrator', $GLOBALS['current_user']->roles) && !current_user_can('export');
        }

        if ($noCapabilitiesNotice) {
            $notices[] = array(__CLASS__, 'showNoExportCapabilityNotice');
        }

        if (is_multisite()) {
            $displayNotices = is_super_admin() && current_user_can('export');
        } else {
            $displayNotices = current_user_can('export');
        }

        if ($displayNotices) {
            $notices[] = array(__CLASS__, 'clearInstallerFilesAction'); // BEFORE MIGRATION SUCCESS NOTICE
            $notices[] = array(__CLASS__, 'migrationSuccessNotice');
            $notices[] = array(__CLASS__, 'installAutoDeactivatePlugins');
        }

        $action = is_multisite() ? 'network_admin_notices' : 'admin_notices';
        foreach ($notices as $notice) {
            add_action($action, $notice);
        }
    }

    /**
     * Remove all notices coming from other plugins
     *
     * @param string $hook Hook string
     *
     * @return void
     */
    public static function unhookThirdPartyNotices($hook)
    {
        if (!ControllersManager::isDuplicatorPage()) {
            return;
        }

        global $wp_filter;
        $filterHooks = array('user_admin_notices', 'admin_notices', 'all_admin_notices', 'network_admin_notices');
        foreach ($filterHooks as $filterHook) {
            if (empty($wp_filter[$filterHook]->callbacks) || !is_array($wp_filter[$filterHook]->callbacks)) {
                continue;
            }

            foreach ($wp_filter[$filterHook]->callbacks as $priority => $hooks) {
                foreach ($hooks as $name => $arr) {
                    if (is_object($arr['function']) && $arr['function'] instanceof Closure) {
                        unset($wp_filter[$filterHook]->callbacks[$priority][$name]);
                        continue;
                    }
                    if (
                        !empty($arr['function'][0]) &&
                        is_object($arr['function'][0]) &&
                        strpos(get_class($arr['function'][0]), Autoloader::ROOT_NAMESPACE) === 0
                    ) {
                        continue;
                    }
                    if (!empty($name) && strpos($name, Autoloader::ROOT_NAMESPACE) !== 0) {
                        unset($wp_filter[$filterHook]->callbacks[$priority][$name]);
                    }
                }
            }
        }
    }

    /**
     * Clear installer file action
     *
     * @return void
     */
    public static function clearInstallerFilesAction()
    {

        if (!\DUP_CTRL_Tools::isDiagnosticPage() || get_option(self::OPTION_KEY_MIGRATION_SUCCESS_NOTICE) == true) {
            return;
        }


        if (SnapUtil::filterInputRequest('action', FILTER_DEFAULT) === 'installer') {
            if (! wp_verify_nonce($_REQUEST['_wpnonce'], 'duplicator_cleanup_page')) {
                echo '<p>' . __('Security issue', 'duplicator') . '</p>';
                exit; // Get out of here bad nounce!
            }

            ?>
            <div id="message" class="notice notice-success">
                <?php require DUPLICATOR_LITE_PATH . '/views/parts/migration-clean-installation-files.php'; ?>
            </div>
            <?php
        }
    }

    /**
     * Shows a display message in the wp-admin if any reserved files are found
     *
     * @return void
     */
    public static function migrationSuccessNotice()
    {
        if (get_option(self::OPTION_KEY_MIGRATION_SUCCESS_NOTICE) != true) {
            return;
        }

        if (\DUP_CTRL_Tools::isDiagnosticPage()) {
            require DUPLICATOR_LITE_PATH . '/views/parts/migration-message.php';
        } else {
            require DUPLICATOR_LITE_PATH . '/views/parts/migration-almost-complete.php';
        }
    }

    /**
     * Shows a display message in the wp-admin if any reserved files are found
     *
     * @return string   Html formatted text notice warnings
     */
    public static function showReservedFilesNotice()
    {
        //Show only on Duplicator pages and Dashboard when plugin is active
        $dup_active = is_plugin_active('duplicator/duplicator.php');
        $dup_perm   = current_user_can('manage_options');
        if (!$dup_active || !$dup_perm) {
            return;
        }

        $screen = get_current_screen();
        if (!isset($screen)) {
            return;
        }

        $is_installer_cleanup_req = ($screen->id == 'duplicator_page_duplicator-tools' && isset($_GET['action']) && $_GET['action'] == 'installer');
        if (DUP_Server::hasInstallerFiles() && !$is_installer_cleanup_req) {
            MigrationMng::renameInstallersPhpFiles();

            $on_active_tab = isset($_GET['section']) ? $_GET['section'] : '';
            echo '<div class="dup-updated notice notice-success dup-global-error-reserved-files" id="message"><p>';

            //Safe Mode Notice
            $safe_html = '';
            if (get_option("duplicator_exe_safe_mode", 0) > 0) {
                $safe_msg1 = __('Safe Mode:', 'duplicator');
                $safe_msg2 = __('During the install safe mode was enabled deactivating all plugins.<br/> Please be sure to ', 'duplicator');
                $safe_msg3 = __('re-activate the plugins', 'duplicator');
                $safe_html = "<div class='notice-safemode'><b>{$safe_msg1}</b><br/>{$safe_msg2} <a href='plugins.php'>{$safe_msg3}</a>!</div><br/>";
            }

            //On Tools > Cleanup Page
            if ($screen->id == 'duplicator_page_duplicator-tools' && ($on_active_tab == "info" || $on_active_tab == '')) {
                $title = __('This site has been successfully migrated!', 'duplicator');
                $msg1  = __('Final step(s):', 'duplicator');
                $msg2  = __('This message will be removed after all installer files are removed.  Installer files must be removed to maintain a secure site.  '
                    . 'Click the link above or button below to remove all installer files and complete the migration.', 'duplicator');

                echo "<b class='pass-msg'><i class='fa fa-check-circle'></i> " . esc_html($title) .
                    "</b> <br/> {$safe_html} <b>" . esc_html($msg1) . "</b> <br/>";
                printf(
                    "1. <a href='javascript:void(0)' onclick='jQuery(\"#dup-remove-installer-files-btn\").click()'>%s</a><br/>",
                    esc_html__('Remove Installation Files Now!', 'duplicator')
                );
                printf(
                    "2. <a href='https://wordpress.org/support/plugin/duplicator/reviews/?filter=5' target='wporg'>%s</a> <br/> ",
                    esc_html__('Optionally, Review Duplicator at WordPress.org...', 'duplicator')
                );
                echo "<div class='pass-msg'>" . esc_html($msg2) . "</div>";

                //All other Pages
            } else {
                $title = __('Migration Almost Complete!', 'duplicator');
                $msg   = __(
                    'Reserved Duplicator installation files have been detected in the root directory.  Please delete these installation files to '
                    . 'avoid security issues. <br/> Go to: Duplicator > Tools > General > Information > Utils and click the "Remove Installation Files" button',
                    'duplicator'
                );

                $nonce = wp_create_nonce('duplicator_cleanup_page');
                $url   = self_admin_url('admin.php?page=duplicator-tools&tab=diagnostics&section=info&_wpnonce=' . $nonce);
                echo "<b>{$title}</b><br/> {$safe_html} {$msg}";
                @printf("<br/><a href='{$url}'>%s</a>", __('Take me there now!', 'duplicator'));
            }
            echo "</p></div>";
        }
    }

    /**
     * Shows a message for redirecting a page
     *
     * @param string $location The location to redirect to
     *
     * @return never
     */
    public static function redirect($location)
    {
        echo '<div class="dup-redirect"><i class="fas fa-circle-notch fa-spin fa-fw"></i>';
        esc_html__('Redirecting Please Wait...', 'duplicator');
        echo '</div>';
        echo "<script>window.location = '{$location}';</script>";
        die(esc_html__('Invalid token permissions to perform this request.', 'duplicator'));
    }

    /**
     * Shows install deactivated function
     *
     * @return void
     */
    public static function installAutoDeactivatePlugins()
    {
        $reactivatePluginsAfterInstallation = get_option(self::OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL, false);

        $pluginsToActive = get_option(self::OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL, false);
        if (!is_array($pluginsToActive) || empty($pluginsToActive)) {
            return false;
        }

        $shouldBeActivated = array();
        $allPlugins        = get_plugins();
        foreach ($pluginsToActive as $index => $pluginSlug) {
            if (!isset($allPlugins[$pluginSlug])) {
                unset($pluginsToActive[$index]);
                continue;
            }

            $isActive = is_plugin_active($pluginSlug);

            if (!$isActive && isset($allPlugins[$pluginSlug])) {
                $shouldBeActivated[$pluginSlug] = $allPlugins[$pluginSlug]['Name'];
            } else {
                unset($pluginsToActive[$index]);
            }
        }

        if (empty($shouldBeActivated)) {
            delete_option(self::OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL);
            return;
        } else {
            update_option(self::OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL, $pluginsToActive);
        }

        $activatePluginsAnchors = array();
        foreach ($shouldBeActivated as $slug => $title) {
            $activateURL              = wp_nonce_url(admin_url('plugins.php?action=activate&plugin=' . $slug), 'activate-plugin_' . $slug);
            $anchorTitle              = sprintf(esc_html__('Activate %s', 'duplicator'), $title);
            $activatePluginsAnchors[] = '<a href="' . $activateURL . '" 
                                            title="' . esc_attr($anchorTitle) . '">' .
                $title . '</a>';
        }
        ?>
        <div class="update-nag duplicator-plugin-activation-admin-notice notice notice-warning duplicator-admin-notice is-dismissible"
                data-to-dismiss="<?php echo esc_attr(self::OPTION_KEY_ACTIVATE_PLUGINS_AFTER_INSTALL); ?>" >
            <p>
                <?php
                echo "<b>" . esc_html__("Warning!", "duplicator") . "</b> " . esc_html__("Migration Almost Complete!", "duplicator") . " <br/>";
                echo esc_html__(
                    "Plugin(s) listed here have been deactivated during installation to help prevent issues. Please activate them to finish this migration: ",
                    "duplicator"
                ) . "<br/>";
                echo implode(' ,', $activatePluginsAnchors);
                ?>
            </p>
        </div>
        <?php
    }

    /**
     * Shows feedback notices after certain no. of packages successfully created.
     *
     * @return void
     */
    public static function showFeedBackNotice()
    {
        $notice_id = 'rate_us_feedback';

        if (!current_user_can('manage_options')) {
            return;
        }

        $notices = get_user_meta(get_current_user_id(), DUPLICATOR_ADMIN_NOTICES_USER_META_KEY, true);
        if (empty($notices)) {
            $notices = array();
        }

        $duplicator_pages = array(
            'toplevel_page_duplicator',
            'duplicator_page_duplicator-tools',
            'duplicator_page_duplicator-settings',
            'duplicator_page_duplicator-gopro',
        );

        if (!in_array(get_current_screen()->id, $duplicator_pages) || (isset($notices[$notice_id]) && 'true' === $notices[$notice_id])) {
            return;
        }

        // not using DUP_Util::getTablePrefix() in place of $tablePrefix because AdminNotices included initially (Duplicator\Lite\Requirement
        // is depended on the AdminNotices)
        $tablePrefix   = (is_multisite() && is_plugin_active_for_network('duplicator/duplicator.php')) ?
            $GLOBALS['wpdb']->base_prefix :
            $GLOBALS['wpdb']->prefix;
        $packagesCount = $GLOBALS['wpdb']->get_var('SELECT count(id) FROM ' . $tablePrefix . 'duplicator_packages WHERE status=100');

        if ($packagesCount < DUPLICATOR_FEEDBACK_NOTICE_SHOW_AFTER_NO_PACKAGE) {
            return;
        }

        $notices[$notice_id] = 'false';
        update_user_meta(get_current_user_id(), DUPLICATOR_ADMIN_NOTICES_USER_META_KEY, $notices);
        $dismiss_url = wp_nonce_url(
            add_query_arg(array(
            'action'    => 'duplicator_set_admin_notice_viewed',
            'notice_id' => esc_attr($notice_id),
                ), admin_url('admin-post.php')),
            'duplicator_set_admin_notice_viewed',
            'nonce'
        );
        ?>
        <div class="notice updated duplicator-message duplicator-message-dismissed" data-notice_id="<?php echo esc_attr($notice_id); ?>">
            <div class="duplicator-message-inner">
                <div class="duplicator-message-icon">
                    <img 
                        src="<?php echo esc_url(DUPLICATOR_PLUGIN_URL . "assets/img/logo.png"); ?>" 
                        style="text-align:top; margin:0; height:60px; width:60px;" alt="Duplicator">
                </div>
                <div class="duplicator-message-content">
                    <p>
                        <strong>
                            <?php echo __('Congrats!', 'duplicator'); ?>
                        </strong> 
                        <?php
                        printf(
                            esc_html__(
                                'You created over %d backups with Duplicator. Great job! If you can spare a minute, 
                                please help us by leaving a five star review on WordPress.org.',
                                'duplicator'
                            ),
                            DUPLICATOR_FEEDBACK_NOTICE_SHOW_AFTER_NO_PACKAGE
                        ); ?>
                    </p>
                    <p class="duplicator-message-actions">
                        <a 
                            href="https://wordpress.org/support/plugin/duplicator/reviews/?filter=5/#new-post" 
                            target="_blank" class="button button-primary duplicator-notice-rate-now"
                        >
                            <?php esc_html_e("Sure! I'd love to help", 'duplicator'); ?>
                        </a>
                        <a href="<?php echo esc_url_raw($dismiss_url); ?>" class="button duplicator-notice-dismiss">
                            <?php esc_html_e('Hide Notification', 'duplicator'); ?>
                        </a>
                    </p>
                </div>
            </div>
        </div>
        <?php
    }

    /**
     * Shows a display message in the wp-admin if the logged in user role has not export capability
     *
     * @return void
     */
    public static function showNoExportCapabilityNotice()
    {
        if (is_admin() && in_array('administrator', $GLOBALS['current_user']->roles) && !current_user_can('export')) {
            $faqUrl       = esc_url(LinkManager::getDocUrl(
                'how-to-resolve-duplicator-plugin-user-interface-ui-issues',
                'admin_notice',
                'duplicator menu missing'
            ));
            $errorMessage = __(
                '<strong>Duplicator</strong><hr> Your logged-in user role does not have export 
                capability so you don\'t have access to Duplicator functionality.',
                'duplicator'
            ) .
            "<br>" .
            sprintf(
                _x(
                    '<strong>RECOMMENDATION:</strong> Add export capability to your role. See FAQ: ' .
                    '%1$sWhy is the Duplicator/Packages menu missing from my admin menu?%2$s',
                    '%1$s and %2$s are <a> tags',
                    'duplicator'
                ),
                '<a target="_blank" href="' . $faqUrl . '">',
                '</a>'
            );
            self::displayGeneralAdminNotice($errorMessage, self::GEN_ERROR_NOTICE, true);
        }
    }

    /**
     * display genral admin notice by printing it
     *
     * @param string       $htmlMsg       html code to be printed
     * @param integer      $noticeType    constant value of SELF::GEN_
     * @param boolean      $isDismissible whether the notice is dismissable or not. Default is true
     * @param array|string $extraClasses  add more classes to the notice div
     *
     * @return void
     */
    public static function displayGeneralAdminNotice($htmlMsg, $noticeType, $isDismissible = true, $extraClasses = array())
    {
        if (empty($extraClasses)) {
            $classes = array();
        } elseif (is_array($extraClasses)) {
            $classes = $extraClasses;
        } else {
            $classes = array($extraClasses);
        }

        $classes[] = 'notice';

        switch ($noticeType) {
            case self::GEN_INFO_NOTICE:
                $classes[] = 'notice-info';
                break;
            case self::GEN_SUCCESS_NOTICE:
                $classes[] = 'notice-success';
                break;
            case self::GEN_WARNING_NOTICE:
                $classes[] = 'notice-warning';
                break;
            case self::GEN_ERROR_NOTICE:
                $classes[] = 'notice-error';
                break;
            default:
                throw new Exception('Invalid Admin notice type!');
        }

        if ($isDismissible) {
            $classes[] = 'is-dismissible';
        }

        $classesStr = implode(' ', $classes);
        ?>
        <div class="<?php echo esc_attr($classesStr); ?>">
            <p>
                <?php
                if (self::GEN_ERROR_NOTICE == $noticeType) {
                    ?>
                    <i class='fa fa-exclamation-triangle'></i>
                    <?php
                }
                ?>
                <?php
                echo $htmlMsg;
                ?>
            </p>
        </div>
        <?php
    }
}