<?php
namespace CustomFields;
defined('ABSPATH') || exit;

/** A shared, progressively enhanced shell. It never saves content; display preferences stay in this browser. */
final class Workspace {
    /** Presentation only: paid operations enforce their own server-side access. */
    public static function pro_available() {
        if (is_callable(array('CustomFieldsPro\\Access', 'unlocked'))) { return \CustomFieldsPro\Access::unlocked(); }
        return class_exists('CustomFieldsPro\\Agency');
    }
    public static function boot() {
        add_filter('admin_body_class', array(__CLASS__, 'body'));
        add_action('admin_enqueue_scripts', array(__CLASS__, 'assets'), 99);
        add_action('admin_footer', array(__CLASS__, 'shell'));
    }
    private static function page() {
        $page = isset($_GET['page']) && is_string($_GET['page']) ? sanitize_key(wp_unslash($_GET['page'])) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Read-only routing, filtering or pagination; no mutation is authorized by this query parameter. Object access remains checked by the renderer.
        return $page;
    }
    public static function routes() {
        return array(
            'customfields' => array('build', __('Field groups', 'customfields-com'), __('Create and edit the fields for your content.', 'customfields-com')),
            'customfields-welcome' => array('support', __('Welcome choices', 'customfields-com'), __('Choose optional site registration and email preferences.', 'customfields-com')),
            'customfields-start' => array('build', __('Use your fields', 'customfields-com'), __('Preview real saved content and continue your work.', 'customfields-com')),
            'customfields-csv-check' => array('move', __('Compare a CSV', 'customfields-com'), __('See every supported row outcome and keep manual fixes available.', 'customfields-com')),
            'customfields-health' => array('check', __('Content checks', 'customfields-com'), __('Check content and compare definitions with clear coverage.', 'customfields-com')),
            'customfields-maintenance' => array('check', __('Maintenance', 'customfields-com'), __('Save checks, review changes and retain local maintenance history.', 'customfields-com')),
            'customfields-content-types' => array('build', __('Content types', 'customfields-com'), __('Register the content types and taxonomies your site needs.', 'customfields-com')),
            'customfields-pro-options' => array('build', __('Site options', 'customfields-com'), __('Edit the details that your whole site shares.', 'customfields-com')),
            'customfields-publishing' => array('publish', __('Blocks & listings', 'customfields-com'), __('Free blocks and basic display. Pro creates and configures directories and listings. Existing saved listings keep rendering.', 'customfields-com')),
            'customfields-pro-import' => array('move', __('Import field definitions', 'customfields-com'), __('Bring across an ACF field structure before moving its values.', 'customfields-com')),
            'customfields-workflows' => array('move', __('History & migrations', 'customfields-com'), __('Review the source, check the destination, then copy with recovery.', 'customfields-com')),
            'customfields-sync' => array('move', __('Definition files', 'customfields-com'), __('Import a local definition file or download the current setup.', 'customfields-com')),
            'customfields-storage' => array('move', __('Value storage', 'customfields-com'), __('Manage optional table storage without losing the native copy.', 'customfields-com')),
            'customfields-csv' => array('move', __('CSV workflows', 'customfields-com'), __('Reuse column mappings, review changes and update existing content.', 'customfields-com')),
            'customfields-submissions' => array('publish', __('Submission forms', 'customfields-com'), __('Review new entries and proposed changes with assigned reviewers.', 'customfields-com')),
            'customfields-agency' => array('move', __('Move field setup', 'customfields-com'), __('Package field and content definitions, then review them on another site.', 'customfields-com')),
            'customfields-transfer' => array('move', __('Content & media', 'customfields-com'), __('Copy selected content and its local media with review and recovery.', 'customfields-com')),
            'customfields-bulk' => array('build', __('Bulk editor', 'customfields-com'), __('Make a careful change across your content, with review and undo.', 'customfields-com')),
            'customfields-pro-license' => array('support', __('Licence & updates', 'customfields-com'), __('Activate Pro on this site and manage optional update services.', 'customfields-com')),
            'customfields-pro-preview' => array('support', __('Explore Pro', 'customfields-com'), __('Try local examples of reviewed business workflows.', 'customfields-com')),
        );
    }
    /** Fixed preview destinations; these links never register or authorize a Pro operation. */
    private static function pro_tools() {
        return array(
            'customfields-bulk' => 'bulk',
            'customfields-submissions' => 'submissions',
            'customfields-csv' => 'csv',
            'customfields-agency' => 'deploy',
            'customfields-transfer' => 'transfer',
            'customfields-maintenance' => 'maintenance',
        );
    }
    private static function active() { return isset(self::routes()[self::page()]) && (current_user_can('manage_options') || (self::page() === 'customfields-submissions' && current_user_can('customfields_review_submissions'))); }
    public static function body($classes) { return self::active() ? $classes . ' cf-unified cf-route-' . self::page() : $classes; }
    public static function assets() {
        if (!self::active()) { return; }
        wp_enqueue_style('customfields-workspace', CUSTOMFIELDS_URL . 'assets/workspace.css', array('customfields-admin'), CUSTOMFIELDS_VERSION);
        wp_enqueue_script('customfields-workspace', CUSTOMFIELDS_URL . 'assets/workspace.js', array('wp-i18n'), CUSTOMFIELDS_VERSION, true);
        wp_set_script_translations('customfields-workspace', 'customfields-com', CUSTOMFIELDS_PATH . 'languages');
        if (in_array(self::page(), array('customfields-workflows', 'customfields-agency', 'customfields-transfer', 'customfields-sync'), true)) {
            wp_enqueue_style('customfields-flows', CUSTOMFIELDS_URL . 'assets/flows.css', array('customfields-workspace'), CUSTOMFIELDS_VERSION);
            wp_enqueue_script('customfields-flows', CUSTOMFIELDS_URL . 'assets/flows.js', array('customfields-workspace', 'wp-i18n'), CUSTOMFIELDS_VERSION, true);
            wp_set_script_translations('customfields-flows', 'customfields-com', CUSTOMFIELDS_PATH . 'languages');
            wp_localize_script('customfields-flows', 'CustomFieldsFlows', array(
                'fields' => __('Choose your fields', 'customfields-com'), 'content' => __('Choose your content', 'customfields-com'),
                'review' => __('Review changes', 'customfields-com'), 'next' => __('Next: choose content', 'customfields-com'), 'back' => __('Back to fields', 'customfields-com'),
                'search' => __('Find an item in this review', 'customfields-com'), 'previous' => __('Previous items', 'customfields-com'), 'more' => __('Next items', 'customfields-com'),
                'scope' => /* translators: %d: Number of reviewed items. */ __('All %d reviewed items remain in this operation. Filtering only changes this view.', 'customfields-com'),
                'page' => /* translators: 1: First visible match; 2: last visible match; 3: total matches. */ __('Showing %1$d–%2$d of %3$d matches', 'customfields-com'), 'empty' => __('No matching items. Clear the search to see the full review.', 'customfields-com'),
                'all' => __('Select all in this section', 'customfields-com'), 'clear' => __('Clear this section', 'customfields-com'), 'selected' => /* translators: %d: Number of selected items. */ __('%d selected', 'customfields-com'),
            ));
        }
        wp_localize_script('customfields-workspace', 'CustomFieldsWorkspace', array(
            'page' => self::page(),
            'preferenceKey' => 'customfields-studio-' . substr(hash('sha256', home_url('/')), 0, 16) . '-' . get_current_blog_id() . '-' . get_current_user_id(),
            'description' => self::routes()[self::page()][2],
            'labels' => array(
                'details' => __('Details & limits', 'customfields-com'), 'noTools' => __('No matching tools. Try “fields”, “move” or “publish”.', 'customfields-com'),
                'identity' => __('Name and identify', 'customfields-com'), 'content' => __('Choose the content', 'customfields-com'), 'appearance' => __('Choose the display', 'customfields-com'),
                'controls' => __('Add the editing controls', 'customfields-com'), 'filter' => __('Narrow and sort the results', 'customfields-com'), 'save' => __('Save and use it', 'customfields-com'),
                'technical' => __('Advanced identifiers', 'customfields-com'), 'draft' => __('Unsaved changes', 'customfields-com'),
                'draftNotice' => __('You have changes on this page. Leave without saving?', 'customfields-com'),
                'guidance' => __('Guidance & recent checks', 'customfields-com'), 'showWordPress' => __('Show WordPress', 'customfields-com'), 'focusWorkspace' => __('Focus workspace', 'customfields-com'),
                'copied' => __('Copied', 'customfields-com'), 'copy' => __('Copy', 'customfields-com'),
            ),
        ));
    }
    public static function shell() {
        if (!self::active()) { return; }
        global $submenu;
        $allowed = array();
        foreach ($submenu['customfields'] ?? array() as $item) {
            if (isset($item[2], $item[1]) && current_user_can($item[1])) { $allowed[$item[2]] = true; }
        }
        if (self::page() === 'customfields-submissions' && current_user_can('customfields_review_submissions')) { $allowed['customfields-submissions'] = true; }
        $routes = array_intersect_key(self::routes(), $allowed); $page = self::page();
        if (!isset($routes[$page])) { return; }
        $tools = self::pro_tools(); $previews = array(); $urls = array(); $current = $page;
        // Free administrators can explore local previews. Active Pro keeps its registered capability-filtered routes.
        if (!self::pro_available() && current_user_can('manage_options') && isset($routes['customfields-pro-preview'])) {
            $previews = ProDiscovery::preview_tabs_hidden() ? array() : $tools;
            $routes = array_diff_key($routes, $tools);
            $routes = array_intersect_key(self::routes(), $routes + $previews);
        }
        // A directly opened installed-tool page keeps a valid breadcrumb even with preview links hidden.
        if (!isset($routes[$page])) { $routes[$page] = self::routes()[$page]; }
        $feature = isset($_GET['feature']) && is_string($_GET['feature']) ? wp_unslash($_GET['feature']) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended,WordPress.Security.ValidatedSanitizedInput.InputNotSanitized -- Read-only selection must exactly match the fixed preview map below; it is never reflected or used to authorize a mutation.
        foreach ($routes as $key => $route) {
            $urls[$key] = isset($previews[$key]) ? add_query_arg(array('page' => 'customfields-pro-preview', 'feature' => $previews[$key]), admin_url('admin.php')) : admin_url('admin.php?page=' . $key);
            if ($page === 'customfields-pro-preview' && isset($previews[$key]) && $feature === $previews[$key]) { $current = $key; }
        }
        // Fixed documentation links are available in navigation and the finder; opening them shares no saved field values.
        $help = array('customfields-docs' => 'https://customfields.com/docs/', 'customfields-support' => 'https://customfields.com/help/');
        $routes['customfields-docs'] = array('support', __('Getting started', 'customfields-com'), __('Documentation: create fields, enter values and display your content.', 'customfields-com'));
        $routes['customfields-support'] = array('support', __('Get support', 'customfields-com'), __('Ask for help or report a problem with CustomFields.', 'customfields-com'));
        $urls = array_merge($urls, $help);
        $categories = array('build' => __('Build & edit', 'customfields-com'), 'publish' => __('Publish', 'customfields-com'), 'move' => __('Move data', 'customfields-com'), 'check' => __('Check content', 'customfields-com'), 'support' => __('Help & updates', 'customfields-com'));
        $pro = self::pro_available();
        $icons = array('build' => 'screenoptions', 'publish' => 'layout', 'move' => 'randomize', 'check' => 'yes-alt', 'support' => 'sos');
        echo '<template id="cf-workspace-shell"><div class="cf-workspace-chrome"><a class="cf-studio-skip" href="#cf-studio-content">' . esc_html__('Skip to workspace', 'customfields-com') . '</a><aside id="cf-studio-rail" class="cf-studio-rail" aria-label="' . esc_attr__('CustomFields.com navigation', 'customfields-com') . '"><a class="cf-workspace-brand" href="' . esc_url(admin_url('admin.php?page=' . (current_user_can('manage_options') ? 'customfields' : 'customfields-submissions'))) . '"><span aria-hidden="true">{·}</span><strong>' . esc_html__('CustomFields.com', 'customfields-com') . '<small>' . esc_html__('CONTENT STUDIO', 'customfields-com') . '</small></strong></a><button type="button" class="cf-studio-menu-close" aria-label="' . esc_attr__('Close navigation', 'customfields-com') . '">×</button><div class="cf-studio-site"><span class="cf-studio-site-mark" aria-hidden="true">◇</span><div><strong>' . esc_html(get_bloginfo('name')) . '</strong><small>' . esc_html__('Your WordPress workspace', 'customfields-com') . '</small></div></div><p class="cf-studio-nav-label">' . esc_html__('WORKSPACE', 'customfields-com') . '</p><nav class="cf-studio-nav" aria-label="' . esc_attr__('Content tools', 'customfields-com') . '">';
        foreach ($categories as $category => $label) {
            $category_routes = array_filter($routes, static function ($route) use ($category) { return $route[0] === $category; });
            unset($category_routes['customfields-pro-preview']);
            if (!$category_routes) { continue; }
            echo '<details class="cf-studio-nav-group"' . ($current !== 'customfields-pro-preview' && $routes[$current][0] === $category ? ' open' : '') . '><summary><span class="dashicons dashicons-' . esc_attr($icons[$category]) . '" aria-hidden="true"></span>' . esc_html($label) . '</summary><div>';
            foreach ($category_routes as $key => $route) {
                echo '<a href="' . esc_url($urls[$key]) . '"' . ($key === $current ? ' aria-current="page"' : '') . (isset($help[$key]) ? ' target="_blank" rel="noopener noreferrer"' : '') . '><span class="cf-studio-nav-title">' . esc_html($route[1]) . '</span>';
                if (isset($help[$key])) { echo '<span aria-hidden="true">↗</span><span class="screen-reader-text">' . esc_html__(' (opens in a new tab)', 'customfields-com') . '</span>'; }
                if (isset($tools[$key])) { echo '<span class="cf-studio-tool-badge" aria-hidden="true">' . esc_html(isset($previews[$key]) ? __('Pro preview', 'customfields-com') : __('PRO', 'customfields-com')) . '</span><span class="screen-reader-text">' . esc_html(isset($previews[$key]) ? __(' (Pro preview)', 'customfields-com') : __(' (Pro)', 'customfields-com')) . '</span>'; }
                echo '</a>';
            }
            echo '</div></details>';
        }
        if (isset($routes['customfields-pro-preview'])) {
            echo '<a class="cf-studio-pro-link" href="' . esc_url(admin_url('admin.php?page=customfields-pro-preview')) . '"' . ($current === 'customfields-pro-preview' ? ' aria-current="page"' : '') . '><span class="dashicons dashicons-star-empty" aria-hidden="true"></span>' . esc_html__('Explore Pro', 'customfields-com') . '</a>';
        }
        echo '</nav><div class="cf-studio-rail-footer"><a href="' . esc_url(admin_url()) . '">← ' . esc_html__('Back to WordPress', 'customfields-com') . '</a><small>' . esc_html($pro ? __('Private beta', 'customfields-com') : (defined('CUSTOMFIELDS_PRO_VERSION') ? __('Pro installed · activation required', 'customfields-com') : __('Free edition', 'customfields-com'))) . ' · ' . esc_html(CUSTOMFIELDS_VERSION) . '</small></div></aside><button type="button" class="cf-studio-backdrop" hidden tabindex="-1" aria-label="' . esc_attr__('Close navigation', 'customfields-com') . '"></button><header class="cf-studio-topbar"><div class="cf-studio-breadcrumb"><button type="button" class="cf-studio-menu-toggle" aria-controls="cf-studio-rail" aria-expanded="false"><span class="dashicons dashicons-menu" aria-hidden="true"></span><span class="screen-reader-text">' . esc_html__('Open navigation', 'customfields-com') . '</span></button><span>' . esc_html__('Workspace', 'customfields-com') . '</span><span aria-hidden="true">/</span><strong>' . esc_html($routes[$current][1]) . (isset($previews[$current]) ? ' <span class="cf-studio-preview-label">' . esc_html__('Preview', 'customfields-com') . '</span>' : '') . '</strong></div><div class="cf-studio-top-actions"><span class="cf-workspace-edition">' . esc_html($pro ? __('PRO', 'customfields-com') : (defined('CUSTOMFIELDS_PRO_VERSION') ? __('PRO · ACTIVATE', 'customfields-com') : __('FREE', 'customfields-com'))) . '</span><button type="button" class="cf-tool-trigger" aria-label="' . esc_attr__('Find a tool', 'customfields-com') . '"><span class="dashicons dashicons-search" aria-hidden="true"></span><span>' . esc_html__('Find a tool', 'customfields-com') . '</span><kbd>Alt K</kbd></button><label class="cf-studio-theme-control"><span class="screen-reader-text">' . esc_html__('Workspace theme', 'customfields-com') . '</span><select id="cf-studio-theme"><option value="system">' . esc_html__('System', 'customfields-com') . '</option><option value="light">' . esc_html__('Light', 'customfields-com') . '</option><option value="dark">' . esc_html__('Dark', 'customfields-com') . '</option></select></label><button type="button" class="cf-studio-focus-toggle" aria-pressed="false">' . esc_html__('Focus workspace', 'customfields-com') . '</button></div></header></div><div class="cf-workspace-notices" aria-live="polite"></div></template><dialog id="cf-tools-dialog" aria-labelledby="cf-tools-title"><header><h2 id="cf-tools-title">' . esc_html__('What would you like to do?', 'customfields-com') . '</h2><button type="button" class="cf-tools-close" aria-label="' . esc_attr__('Close tool finder', 'customfields-com') . '">×</button></header><label class="screen-reader-text" for="cf-tools-search">' . esc_html__('Search tools', 'customfields-com') . '</label><input id="cf-tools-search" type="search" placeholder="' . esc_attr__('Try fields, listings, migration…', 'customfields-com') . '" autocomplete="off"><ul>';
        foreach ($routes as $key => $route) {
            echo '<li><a href="' . esc_url($urls[$key]) . '"' . (isset($help[$key]) ? ' target="_blank" rel="noopener noreferrer"' : '') . '><span>' . esc_html($route[1]);
            if (isset($help[$key])) { echo ' <span aria-hidden="true">↗</span><span class="screen-reader-text">' . esc_html__(' (opens in a new tab)', 'customfields-com') . '</span>'; }
            if (isset($tools[$key])) { echo ' <span class="cf-tool-edition">' . esc_html(isset($previews[$key]) ? __('Pro preview', 'customfields-com') : __('Pro', 'customfields-com')) . '</span>'; }
            echo '</span><small>' . esc_html($route[2]) . '</small><span class="cf-tool-category">' . esc_html($categories[$route[0]]) . '</span></a></li>';
        }
        echo '</ul><p class="cf-tools-empty" role="status" hidden></p><footer>' . esc_html__('Type to find a tool · ↑ ↓ to choose · Enter to open · Esc to close', 'customfields-com') . '</footer></dialog>';
    }
}