<?php
if (!defined('ABSPATH')) exit;

/**
 * Adds administrator-controlled bulk content actions to Content Development.
 *
 * All operations use the authenticated WordPress AJAX endpoint. No iframe or
 * remote admin interface is created.
 */
class AIWEST_Content_Improvement_Bulk_UI {
    public static function init() {
        add_action('admin_enqueue_scripts', [__CLASS__, 'enqueue_assets']);
        add_action('admin_footer', [__CLASS__, 'render_working_overlay'], 100);
    }

    protected static function is_content_improvement_screen() {
        if (!is_admin() || !current_user_can('manage_options')) return false;

        $page = AIWEST_Security::get_key('page');
        return in_array($page, ['aiwest-content-upgrader', 'aiwest-content'], true);
    }

    public static function enqueue_assets() {
        if (!self::is_content_improvement_screen()) return;

        wp_enqueue_style(
            'aiwest-content-bulk',
            AIWEST_URL . 'assets/content-improvement-bulk.css',
            [],
            AIWEST_VERSION
        );
        wp_enqueue_script(
            'aiwest-content-bulk',
            AIWEST_URL . 'assets/content-improvement-bulk.js',
            [],
            AIWEST_VERSION,
            true
        );
        wp_localize_script('aiwest-content-bulk', 'AIWESTContentBulk', [
            'ajaxUrl' => admin_url('admin-ajax.php'),
            'nonce'   => wp_create_nonce('aiwest_ci_bulk_ajax'),
            'strings' => [
                'selectAll'       => __('Select all', 'ai-webmaster-studio'),
                'heading'         => __('AI Web bulk actions', 'ai-webmaster-studio'),
                'bulkAction'      => __('Bulk action', 'ai-webmaster-studio'),
                'selectAction'    => __('Select action', 'ai-webmaster-studio'),
                'visual'          => __('Preserve content and improve layout', 'ai-webmaster-studio'),
                'expand'          => __('Expand content', 'ai-webmaster-studio'),
                'seo'             => __('Improve SEO', 'ai-webmaster-studio'),
                'faq'             => __('Add FAQ', 'ai-webmaster-studio'),
                'cta'             => __('Add CTA', 'ai-webmaster-studio'),
                'image'           => __('Add image', 'ai-webmaster-studio'),
                'links'           => __('Add links', 'ai-webmaster-studio'),
                'canvasEnable' => __('Enable Canvas', 'ai-webmaster-studio'),
                'canvasDisable' => __('Disable Canvas', 'ai-webmaster-studio'),
                'undo'            => __('Undo changes', 'ai-webmaster-studio'),
                'apply'           => __('Apply to selected', 'ai-webmaster-studio'),
                'selectVisible'   => __('Select visible', 'ai-webmaster-studio'),
                'clear'           => __('Deselect all', 'ai-webmaster-studio'),
                'selected'        => __('selected', 'ai-webmaster-studio'),
                'description'     => __('Select several pages or posts and run the same action. Layout enhancement preserves all existing text, headings and links; a result that violates this rule will be rejected.', 'ai-webmaster-studio'),
                'chooseAction'    => __('Select a bulk action.', 'ai-webmaster-studio'),
                'chooseContent'   => __('Select at least one page or post.', 'ai-webmaster-studio'),
                'confirm'         => __('Run the selected AI Web action for selected items?', 'ai-webmaster-studio'),
                'working'         => __('AI is generating content.', 'ai-webmaster-studio'),
                'keepOpen'        => __('Please do not close or leave this page while AI is working.', 'ai-webmaster-studio'),
                'selectedContent' => __('Selected content', 'ai-webmaster-studio'),
                'processing'      => __('Processing', 'ai-webmaster-studio'),
                'starting'        => __('starting', 'ai-webmaster-studio'),
                'completed'       => __('action completed.', 'ai-webmaster-studio'),
                'finished'        => __('Bulk action queue finished. Refresh the page to see updated statuses.', 'ai-webmaster-studio'),
                'missingId'       => __('Could not read the selected content ID.', 'ai-webmaster-studio'),
                'invalidJson'     => __('The server did not return a valid JSON response.', 'ai-webmaster-studio'),
                'failed'          => __('Bulk action failed.', 'ai-webmaster-studio'),
            ],
        ]);
    }

    public static function render_working_overlay() {
        if (!self::is_content_improvement_screen()) return;
        ?>
        <div id="aiwest-global-working-overlay" aria-live="polite" aria-busy="false" aria-hidden="true">
            <div class="aiwest-working-box">
                <div class="aiwest-spinner" aria-hidden="true"></div>
                <h2><?php echo esc_html(__('AI Webmaster Studio is working', 'ai-webmaster-studio')); ?></h2>
                <p id="aiwest-working-main"><?php echo esc_html(__('AI is generating content.', 'ai-webmaster-studio')); ?></p>
                <p id="aiwest-working-sub"><?php echo esc_html(__('Please do not close or leave this page while AI is working.', 'ai-webmaster-studio')); ?></p>
                <div class="aiwest-working-progress" id="aiwest-working-progress"></div>
            </div>
        </div>
        <?php
    }
}

AIWEST_Content_Improvement_Bulk_UI::init();