<?php

namespace AcademicCrew\CPT;

use AcademicCrew\Core\Loader;

class CollaborationCPT {

    public function register( Loader $loader ): void {
        $loader->add_action( 'init',                           $this, 'register_cpt'           );
        $loader->add_filter( 'post_type_link',                 $this, 'linked_page_permalink', 10, 2 );
        $loader->add_filter( 'use_block_editor_for_post_type', $this, 'disable_block_editor',  10, 2 );
    }

    public function disable_block_editor( bool $use, string $post_type ): bool {
        return 'acc_collaboration' === $post_type ? false : $use;
    }

    /**
     * Redirect the CPT permalink to the linked WP page so the admin "View"
     * button and get_permalink() both point to the canonical front-end URL.
     */
    public function linked_page_permalink( string $url, \WP_Post $post ): string {
        if ( $post->post_type !== 'acc_collaboration' ) {
            return $url;
        }
        $page_id = (int) get_post_meta( $post->ID, '_academiccrew_linked_page_id', true );
        if ( ! $page_id ) {
            return $url;
        }
        // Use get_post() + build the page URL without triggering this filter again.
        $page = get_post( $page_id );
        if ( ! $page || $page->post_type !== 'page' ) {
            return $url;
        }
        $page_url = get_permalink( $page );
        return $page_url ?: $url;
    }

    public function register_cpt(): void {
        $labels = [
            'name'               => __( 'Research Projects', 'academiccrew' ),
            'singular_name'      => __( 'Research Project', 'academiccrew' ),
            'add_new'            => __( 'Add New', 'academiccrew' ),
            'add_new_item'       => __( 'Add New Research Project', 'academiccrew' ),
            'edit_item'          => __( 'Edit Research Project', 'academiccrew' ),
            'new_item'           => __( 'New Research Project', 'academiccrew' ),
            'view_item'          => __( 'View Research Project', 'academiccrew' ),
            'search_items'       => __( 'Search Research Projects', 'academiccrew' ),
            'not_found'          => __( 'No research projects found.', 'academiccrew' ),
            'not_found_in_trash' => __( 'No research projects found in Trash.', 'academiccrew' ),
            'all_items'          => __( 'All Research Projects', 'academiccrew' ),
            'menu_name'          => __( 'Research Projects', 'academiccrew' ),
        ];

        register_post_type(
            'acc_collaboration',
            [
                'labels'              => $labels,
                'public'              => true,
                'publicly_queryable'  => false,
                'show_ui'             => true,
                'show_in_menu'        => true,
                'show_in_rest'        => true,
                'menu_icon'           => 'dashicons-analytics',
                'capability_type'     => 'post',
                'has_archive'         => false,
                'rewrite'             => false,
                'supports'            => [ 'title', 'editor', 'thumbnail', 'custom-fields' ],
                'query_var'           => true,
            ]
        );
    }
}