<?php

/**
 * A class that handles displaying an "Exit Interview" for users deactivating the plugin.
 *
 * @since 1.0.0
 *
 * @package StellarWP\Telemetry
 */
namespace iThemesSecurity\Strauss\StellarWP\Telemetry\Exit_Interview;

use iThemesSecurity\Strauss\StellarWP\Telemetry\Contracts\Abstract_Subscriber;
use iThemesSecurity\Strauss\StellarWP\Telemetry\Config;
use iThemesSecurity\Strauss\StellarWP\Telemetry\Opt_In\Status;
use iThemesSecurity\Strauss\StellarWP\Telemetry\Telemetry\Telemetry;
/**
 * A class that handles displaying an "Exit Interview" for users deactivating the plugin.
 *
 * @since 1.0.0
 *
 * @package \StellarWP\Telemetry
 */
class Exit_Interview_Subscriber extends Abstract_Subscriber
{
    const AJAX_ACTION = 'exit-interview';
    /**
     * @inheritDoc
     *
     * @since 1.0.0
     *
     * @return void
     */
    public function register(): void
    {
        // If the site is not opted in, don't enqueue the Exit Interview modal.
        if (!$this->container->get(Status::class)->is_active()) {
            return;
        }
        add_action('admin_footer', [$this, 'render_exit_interview']);
        add_action('wp_ajax_' . self::AJAX_ACTION, [$this, 'ajax_exit_interview']);
        // Implement the exit interview trigger for each registerred plugin.
        foreach (Config::get_all_stellar_slugs() as $basename) {
            add_filter('network_admin_plugin_action_links_' . $basename, [$this, 'plugin_action_links'], 10, 2);
            add_filter('plugin_action_links_' . $basename, [$this, 'plugin_action_links'], 10, 2);
        }
    }
    /**
     * Possibly renders the exit interview if the user is on the plugins list page.
     *
     * @since 1.0.0
     *
     * @return void
     */
    public function render_exit_interview()
    {
        global $pagenow;
        if ('plugins.php' === $pagenow) {
            // Swap key/values since we need to map stellar slugs by plugin basename.
            $stellar_slugs = array_flip(Config::get_all_stellar_slugs());
            $plugins = get_plugins();
            foreach ($plugins as $slug => $data) {
                if (key_exists($slug, $stellar_slugs)) {
                    $this->container->get(Template::class)->maybe_render($stellar_slugs[$slug]);
                }
            }
        }
    }
    /**
     * Handles the ajax request for submitting "Exit Interivew" form data.
     *
     * @since 1.0.0
     * @since 2.3.4 - Added user capability check.
     *
     * @return void
     */
    public function ajax_exit_interview()
    {
        // Check sent data before we do any database checks for faster failures.
        $uninstall_reason_id = filter_input(INPUT_POST, 'uninstall_reason_id', FILTER_SANITIZE_SPECIAL_CHARS);
        $uninstall_reason_id = !empty($uninstall_reason_id) ? $uninstall_reason_id : false;
        if (!$uninstall_reason_id) {
            wp_send_json_error('No reason id provided');
        }
        $uninstall_reason = filter_input(INPUT_POST, 'uninstall_reason', FILTER_SANITIZE_SPECIAL_CHARS);
        $uninstall_reason = !empty($uninstall_reason) ? $uninstall_reason : false;
        if (!$uninstall_reason) {
            wp_send_json_error('No reason provided');
        }
        $plugin_slug = filter_input(INPUT_POST, 'plugin_slug', FILTER_SANITIZE_SPECIAL_CHARS);
        $comment = filter_input(INPUT_POST, 'comment', FILTER_SANITIZE_SPECIAL_CHARS);
        $comment = !empty($comment) ? $comment : '';
        // Validate nonce.
        $nonce = filter_input(INPUT_POST, 'nonce', FILTER_SANITIZE_SPECIAL_CHARS);
        $nonce = !empty($nonce) ? $nonce : '';
        if (!wp_verify_nonce($nonce, self::AJAX_ACTION)) {
            wp_send_json_error('Invalid nonce');
        }
        // Sent data validated, check if the user has the necessary permissions.
        if (!current_user_can('manage_options')) {
            wp_send_json_error('User does not have proper permissions to modify plugins');
        }
        $telemetry = $this->container->get(Telemetry::class);
        $telemetry->send_uninstall($plugin_slug, $uninstall_reason_id, $uninstall_reason, $comment);
        wp_send_json_success();
    }
    /**
     * Adds an <i> element after the "deactivate" link on the plugin list table so that it can be targeted by JS to trigger the interview modal.
     *
     * The deactivation is deferred to the modal displayed.
     *
     * @param array  $links        The links of the plugin in the plugin list.
     * @param string $plugin_file The plugin file of the current plugin in the list.
     *
     * @since 1.0.0
     *
     * @return array
     */
    public function plugin_action_links($links, $plugin_file)
    {
        $stellar_slug = '';
        foreach (Config::get_all_stellar_slugs() as $slug => $basename) {
            if (plugin_basename($plugin_file) === $basename) {
                $stellar_slug = $slug;
                continue;
            }
        }
        $passed_deactivate = false;
        $deactivate_link = '';
        $before_deactivate = [];
        $after_deactivate = [];
        foreach ($links as $key => $link) {
            if ('deactivate' === $key) {
                $deactivate_link = $link;
                $passed_deactivate = true;
                continue;
            }
            if (!$passed_deactivate) {
                $before_deactivate[$key] = $link;
            } else {
                $after_deactivate[$key] = $link;
            }
        }
        if (!empty($deactivate_link)) {
            $deactivate_link .= '<i class="telemetry-plugin-slug" data-plugin-slug="' . $stellar_slug . '"></i>';
            // Append deactivation link.
            $before_deactivate['deactivate'] = $deactivate_link;
        }
        return array_merge($before_deactivate, $after_deactivate);
    }
}