<?php
/**
 * The public-facing functionality of the plugin.
 *
 * @package    QDR_Temporary_Shared_Storage
 * @since      1.0.0
 */
class QDR_TSS_Public {

    /**
     * The ID of this plugin.
     *
     * @since    1.0.0
     * @access   private
     * @var      string    $plugin_name    The ID of this plugin.
     */
    private $plugin_name;

    /**
     * The version of this plugin.
     *
     * @since    1.0.0
     * @access   private
     * @var      string    $version    The current version of this plugin.
     */
    private $version;

    /**
     * Initialize the class and set its properties.
     *
     * @since    1.0.0
     * @param    string    $plugin_name    The name of this plugin.
     * @param    string    $version        The version of this plugin.
     */
    public function __construct($plugin_name, $version) {
        $this->plugin_name = $plugin_name;
        $this->version = $version;
    }

    /**
     * Register the stylesheets for the public-facing side of the site.
     *
     * @since    1.0.0
     */
    public function enqueue_styles() {
        // Only load on download page
        if (!is_page('shared-file-download')) {
            return;
        }
        
        wp_enqueue_style(
            $this->plugin_name . '-public',
            plugin_dir_url(dirname(__FILE__)) . 'public/css/public.css',
            array(),
            $this->version,
            'all'
        );
    }

    /**
     * Register the JavaScript for the public-facing side of the site.
     *
     * @since    1.0.0
     */
    public function enqueue_scripts() {
        // Only load on download page
        if (!is_page('shared-file-download')) {
            return;
        }
        
        wp_enqueue_script(
            $this->plugin_name . '-public',
            plugin_dir_url(dirname(__FILE__)) . 'public/js/public.js',
            array('jquery'),
            $this->version,
            true
        );
    }

    /**
     * Create download page if it doesn't exist.
     *
     * @since    1.0.0
     */
    public function create_download_page() {
        $download_page = get_page_by_path('shared-file-download');
        if (!$download_page) {
            wp_insert_post(array(
                'post_title' => __('Shared File Download', 'qdr-temporary-shared-storage'),
                'post_content' => '[qdr_tss_download]',
                'post_status' => 'publish',
                'post_type' => 'page',
                'post_name' => 'shared-file-download'
            ));
        }
    }

    /**
     * Add rewrite rules for pretty download URLs
     *
     * @since    1.0.0
     */
    public function add_rewrite_rules() {
        // Get the page ID of the download page
        $download_page = get_page_by_path('shared-file-download');
        
        if ($download_page) {
            // Add rewrite rule using page ID
            add_rewrite_rule(
                '^shared-file-download/([a-zA-Z0-9]+)/?$',
                'index.php?page_id=' . $download_page->ID . '&qdr_file_id=$matches[1]',
                'top'
            );
        } else {
            // Fallback to pagename
            add_rewrite_rule(
                '^shared-file-download/([a-zA-Z0-9]+)/?$',
                'index.php?pagename=shared-file-download&qdr_file_id=$matches[1]',
                'top'
            );
        }
        
        // Force flush if our rule isn't in the rewrite rules
        global $wp_rewrite;
        $rules = $wp_rewrite->wp_rewrite_rules();
        if (!isset($rules['^shared-file-download/([a-zA-Z0-9]+)/?$'])) {
            flush_rewrite_rules();
        }
    }

    /**
     * Add query vars
     *
     * @since    1.0.0
     * @param    array    $vars    The array of query vars.
     * @return   array             The modified array of query vars.
     */
    public function add_query_vars($vars) {
        $vars[] = 'qdr_file_id';
        return $vars;
    }

    /**
     * Handle template redirect for download URLs
     *
     * @since    1.0.0
     */
    public function template_redirect() {
        global $wp;
        
        // Check if we're on a URL that matches our pattern
        if (preg_match('/^shared-file-download\/([a-zA-Z0-9]+)\/?$/', $wp->request, $matches)) {
            // Get the file ID from the URL
            $file_id = $matches[1];
            
            // Find the download page
            $download_page = get_page_by_path('shared-file-download');
            
            if ($download_page) {
                // Set the query var
                set_query_var('qdr_file_id', $file_id);
                
                // Redirect to the download page with the file ID
                $url = add_query_arg('id', $file_id, get_permalink($download_page->ID));
                wp_redirect($url);
                exit;
            }
        }
    }

    /**
     * Parse request to handle custom URLs
     *
     * @since    1.0.0
     * @param    WP    $wp    The WordPress environment instance.
     */
    public function parse_request($wp) {
        // Check if the request matches our pattern
        if (preg_match('/^shared-file-download\/([a-zA-Z0-9]+)\/?$/', $wp->request, $matches)) {
            $wp->set_query_var('qdr_file_id', $matches[1]);
            $wp->set_query_var('pagename', 'shared-file-download');
        }
    }
}