<?php

namespace AcademicCrew\PageGenerator;

use AcademicCrew\Core\Loader;

/**
 * Creates the Projects archive page on plugin activation if it does not exist.
 *
 * The page renders via [academiccrew_projects] shortcode.
 * Option key: academiccrew_collaborations_archive_page_id
 */
class CollaborationsArchivePageGenerator extends PageGeneratorBase {

    public function register( Loader $loader ): void {
        $loader->add_action( 'admin_init', $this, 'maybe_generate_archive' );
    }

    public function maybe_generate_archive(): void {
        static::generate_if_needed();

        // One-time flush to remove the CPT /projects/ rewrite rule now that the
        // CPT uses rewrite:false and WP pages own that URL pattern exclusively.
        if ( ! get_option( 'academiccrew_collab_rewrite_flushed_v2' ) ) {
            flush_rewrite_rules( false );
            update_option( 'academiccrew_collab_rewrite_flushed_v2', 1 );
        }
    }

    /**
     * Creates the archive page and stores its ID in options.
     * Safe to call multiple times — updates title/content if the page exists
     * with the old "Collaborations" values from a prior install.
     */
    public static function generate_if_needed(): void {
        $page_id = (int) get_option( 'academiccrew_collaborations_archive_page_id', 0 );

        if ( $page_id && ( $page = get_post( $page_id ) ) && 'trash' !== $page->post_status ) {
            $updates = [];
            if ( in_array( $page->post_title, [ 'Collaborations', 'Research Projects' ], true ) ) {
                $updates['post_title'] = __( 'Projects', 'academiccrew' );
                $updates['post_name']  = 'projects';
            }
            if ( '[academiccrew_collaborations]' === trim( $page->post_content ) ) {
                $updates['post_content'] = '[academiccrew_projects]';
            }
            if ( $updates ) {
                $updates['ID'] = $page_id;
                wp_update_post( $updates );
            }
            // Ensure Avada metas are present (idempotent). Clear fusion_builder_status
            // so Fusion Builder does not try to load its editor on this page.
            update_post_meta( $page_id, 'pyre_page_title',       'no'   );
            update_post_meta( $page_id, 'pyre_sidebar_position', 'none' );
            update_post_meta( $page_id, 'fusion_builder_status', ''     );
            return;
        }

        $page_id = wp_insert_post( [
            'post_title'   => __( 'Projects', 'academiccrew' ),
            'post_content' => '[academiccrew_projects]',
            'post_status'  => 'publish',
            'post_type'    => 'page',
            'post_name'    => 'projects',
            'meta_input'   => [
                '_academiccrew_is_collaborations_archive' => 1,
                'pyre_page_title'                      => 'no',
                'pyre_sidebar_position'                => 'none',
            ],
        ], true );

        if ( ! is_wp_error( $page_id ) && $page_id ) {
            update_option( 'academiccrew_collaborations_archive_page_id', $page_id );
        }
    }
}