<?php

namespace GeminiLabs\SiteReviews\Controllers;

use GeminiLabs\SiteReviews\Api;
use GeminiLabs\SiteReviews\Database\Cache;
use GeminiLabs\SiteReviews\Database\Tables;
use GeminiLabs\SiteReviews\Defaults\FeatureDefaults;
use GeminiLabs\SiteReviews\Helper;
use GeminiLabs\SiteReviews\Helpers\Arr;
use GeminiLabs\SiteReviews\Helpers\Str;
use GeminiLabs\SiteReviews\Modules\Console;
use GeminiLabs\SiteReviews\Modules\Html\Builder;
use GeminiLabs\SiteReviews\Modules\Html\SettingForm;
use GeminiLabs\SiteReviews\Modules\Notice;
use GeminiLabs\SiteReviews\Overrides\ScheduledActionsTable;

class MenuController extends AbstractController
{
    /**
     * This is necessary because the ActionScheduler table is rendered late
     * after request headers have already be set which breaks redirects.
     *
     * @action load-site-review_page_glsr-tools
     */
    public function processPageActions(): void
    {
        glsr(ScheduledActionsTable::class)->process_actions();
    }

    /**
     * @action admin_menu
     */
    public function registerMenuCount(): void
    {
        global $menu, $typenow;
        foreach ($menu as $key => $value) {
            if (!isset($value[2]) || $value[2] != 'edit.php?post_type='.glsr()->post_type) {
                continue;
            }
            $postCount = wp_count_posts(glsr()->post_type);
            $pendingCount = glsr(Builder::class)->span(number_format_i18n($postCount->pending), [
                'class' => 'unapproved-count',
            ]);
            $awaitingModeration = glsr(Builder::class)->span($pendingCount, [
                'class' => "awaiting-mod count-{$postCount->pending}",
            ]);
            $menu[$key][0] .= " {$awaitingModeration}";
            if (glsr()->post_type === $typenow) {
                $menu[$key][4] .= ' current';
            }
            break;
        }
    }

    /**
     * @action admin_menu
     */
    public function registerSubMenus(): void
    {
        global $submenu;
        $pages = $this->parseWithFilter('submenu/pages', [
            'settings' => _x('Settings', 'admin-text', 'site-reviews'),
            'tools' => _x('Tools', 'admin-text', 'site-reviews'),
            'documentation' => _x('Help & Support', 'admin-text', 'site-reviews'),
            'premium' => _x('Upgrade to Premium', 'admin-text', 'site-reviews'),
        ]);
        $parentSlug = 'edit.php?post_type='.glsr()->post_type;
        $slugPrefix = Str::dashCase(glsr()->prefix);
        foreach ($pages as $slug => $title) {
            $method = Helper::buildMethodName('render', $slug, 'menu', 'callback');
            if (!method_exists($this, $method)) {
                continue;
            }
            $callback = glsr()->filter('addon/submenu/callback', [$this, $method], $slug);
            if (!is_callable($callback)) {
                continue;
            }
            add_submenu_page($parentSlug, $title, $title, glsr()->getPermission($slug), $slugPrefix.$slug, $callback);
        }
        foreach ($submenu[$parentSlug] as $index => $menu) {
            $slug = $menu[2] ?? '';
            if (!str_starts_with($slug, $slugPrefix)) {
                continue;
            }
            $submenu[$parentSlug][$index][4] = "submenu_{$slug}"; // add submenu class
        }
    }

    /**
     * We don't use admin_menu because it breaks the privilege check which runs
     * after the admin_menu hook is triggered in wp-admin/includes/menu.php.
     *
     * @action admin_init
     */
    public function removeSubMenu(): void
    {
        if (!function_exists('remove_submenu_page')) {
            require_once \ABSPATH.'wp-admin/includes/plugin.php';
        }
        remove_submenu_page(
            'edit.php?post_type='.glsr()->post_type,
            'post-new.php?post_type='.glsr()->post_type
        );
    }

    /**
     * @see registerSubMenus
     */
    public function renderDocumentationMenuCallback(): void
    {
        $tabs = $this->parseWithFilter('documentation/tabs', [
            'support' => _x('Support', 'admin-text', 'site-reviews'),
            'faq' => _x('FAQ', 'admin-text', 'site-reviews'),
            'shortcodes' => _x('Shortcodes', 'admin-text', 'site-reviews'),
            'hooks' => _x('Hooks', 'admin-text', 'site-reviews'),
            'functions' => _x('Functions', 'admin-text', 'site-reviews'),
            'api' => _x('API', 'admin-text', 'site-reviews'),
            'integrations' => _x('Integrations', 'admin-text', 'site-reviews'),
            'addons' => _x('Addons', 'admin-text', 'site-reviews'),
        ]);
        $addons = glsr()->filterArray('addon/documentation', []);
        uksort($addons, fn ($a, $b) => strnatcasecmp(glsr($a)->name, glsr($b)->name));
        if (empty($addons)) {
            unset($tabs['addons']);
        }
        $this->renderPage('documentation', [
            'addons' => $addons,
            'tabs' => $tabs,
        ]);
    }

    /**
     * @see registerSubMenus
     */
    public function renderPremiumMenuCallback(): void
    {
        $features = [];
        $data = glsr(Api::class)->get('features')->data();
        foreach ($data as $values) {
            $features[] = glsr(FeatureDefaults::class)->restrict($values);
        }
        $feature = array_column($features, 'feature');
        $premium = array_column($features, 'premium');
        array_multisort(
            $premium, \SORT_DESC,
            $feature, \SORT_ASC | \SORT_NATURAL,
            $features
        );
        $this->renderPage('premium', [
            'features' => $features,
        ]);
    }

    /**
     * @see registerSubMenus
     */
    public function renderSettingsMenuCallback(): void
    {
        $tabs = $this->parseWithFilter('settings/tabs', [ // order is intentional
            'general' => _x('General', 'admin-text', 'site-reviews'),
            'reviews' => _x('Reviews', 'admin-text', 'site-reviews'),
            'forms' => _x('Forms', 'admin-text', 'site-reviews'),
            'schema' => _x('Schema', 'admin-text', 'site-reviews'),
            'strings' => _x('Strings', 'admin-text', 'site-reviews'),
            'integrations' => _x('Integrations', 'admin-text', 'site-reviews'),
            'addons' => _x('Addons', 'admin-text', 'site-reviews'),
            'licenses' => _x('Licenses', 'admin-text', 'site-reviews'),
        ]);
        // The installed premium plugin keeps the tab (renamed "Premium"
        // through the addon/settings/tabs filter) even when every feature is
        // toggled off; otherwise the tab exists only if an addon registered
        // settings under it.
        if (is_null(glsr()->addon('site-reviews-premium'))
            && empty(Arr::get(glsr()->defaults(), 'settings.addons'))) {
            unset($tabs['addons']);
        }
        $this->renderPage('settings', [
            'fields' => glsr(SettingForm::class, ['groups' => $tabs])->build(),
            'tabs' => $tabs,
        ]);
    }

    /**
     * @see registerSubMenus
     */
    public function renderToolsMenuCallback(): void
    {
        $tabs = $this->parseWithFilter('tools/tabs', [
            'general' => _x('General', 'admin-text', 'site-reviews'),
            'scheduled' => _x('Scheduled Actions', 'admin-text', 'site-reviews'),
            'sync' => _x('Sync Reviews', 'admin-text', 'site-reviews'),
            'console' => _x('Console', 'admin-text', 'site-reviews'),
            'system-info' => _x('System Info', 'admin-text', 'site-reviews'),
        ]);
        if (!glsr()->filterBool('addon/sync/enable', false)) {
            unset($tabs['sync']);
        }
        $this->renderPage('tools', [
            'data' => [
                'console_level' => glsr(Console::class)->getLevel(),
                'context' => [
                    'base_url' => glsr_admin_url(),
                    'console' => glsr(Console::class)->get(),
                    'id' => glsr()->id,
                ],
                'myisam_tables' => Arr::get(glsr(Tables::class)->tableEngines(), 'MyISAM', []),
                'rollback_script' => file_get_contents(glsr()->path('assets/scripts/rollback.js')),
                'rollback_versions' => glsr(Cache::class)->getPluginVersions(),
                'services' => glsr()->filterArray('addon/sync/services', []),
            ],
            'tabs' => $tabs,
        ]);
    }

    /**
     * Reorders the submenu to keep post types at the top
     * 
     * @action admin_menu
     */
    public function reorderSubMenu(): void
    {
        global $submenu;
        $prefix = 'edit.php?post_type='.glsr()->post_type;
        if (empty($submenu[$prefix])) {
            return;
        }
        $deferred = [];
        $reindexed = [];
        $index = 0;
        $step = 5;
        foreach ($submenu[$prefix] as $item) {
            if (str_starts_with($item[0] ?? '', 'All ')) {
                $index += $step;
                $reindexed[$index] = $item;
            } else {
                $deferred[] = $item;
            }
        }
        foreach ($deferred as $item) {
            $index += $step;
            $reindexed[$index] = $item;
        }
        $submenu[$prefix] = $reindexed;
    }

    /**
     * @action admin_init
     */
    public function setCustomPermissions(): void
    {
        foreach (wp_roles()->roles as $role => $value) {
            wp_roles()->remove_cap($role, 'create_'.glsr()->post_type);
        }
    }

    protected function getNotices(): string
    {
        return glsr(Builder::class)->div(glsr(Notice::class)->get(), [
            'id' => 'glsr-notices',
        ]);
    }

    protected function parseWithFilter(string $hookSuffix, array $args = []): array
    {
        if (str_ends_with($hookSuffix, '/tabs')) {
            $page = str_replace('/tabs', '', $hookSuffix);
            foreach ($args as $tab => $title) {
                if (!glsr()->hasPermission($page, $tab)) {
                    unset($args[$tab]);
                }
            }
        }
        // The "premium" submenu title is an upsell ("Upgrade to Premium")
        // unless the premium plugin is installed — it renames the page via
        // the filter below and renders its own feature control panel.
        return glsr()->filterArray("addon/{$hookSuffix}", $args);
    }

    protected function renderPage(string $page, array $data = []): void
    {
        $data['http_referer'] = (string) wp_get_referer();
        $data['notices'] = $this->getNotices();
        glsr()->render("pages/{$page}/index", $data);
    }
}