<?php
/**
 * Edit post administration panel.
 *
 * Manage Post actions: post, edit, delete, etc.
 *
 * @package WordPress
 * @subpackage Administration
 */

/** WordPress Administration Bootstrap */
require_once __DIR__ . '/admin.php';

$parent_file  = 'edit.php';
$submenu_file = 'edit.php';

$action = ! empty( $_REQUEST['action'] ) ? sanitize_text_field( $_REQUEST['action'] ) : '';

if ( isset( $_GET['post'] ) && isset( $_POST['post_ID'] ) && (int) $_GET['post'] !== (int) $_POST['post_ID'] ) {
    wp_die( __( 'A post ID mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
} elseif ( isset( $_GET['post'] ) ) {
    $post_id = (int) $_GET['post'];
} elseif ( isset( $_POST['post_ID'] ) ) {
    $post_id = (int) $_POST['post_ID'];
} else {
    $post_id = 0;
}
$post_ID = $post_id;

/**
 * @global string       $post_type        Global post type.
 * @global WP_Post_Type $post_type_object Global post type object.
 * @global WP_Post      $post             Global post object.
 */
global $post_type, $post_type_object, $post;

if ( $post_id ) {
    $post = get_post( $post_id );
}

if ( $post ) {
    $post_type        = $post->post_type;
    $post_type_object = get_post_type_object( $post_type );
}

if ( isset( $_POST['post_type'] ) && $post && $post_type !== $_POST['post_type'] ) {
    wp_die( __( 'A post type mismatch has been detected.' ), __( 'Sorry, you are not allowed to edit this item.' ), 400 );
}

if ( isset( $_POST['deletepost'] ) ) {
    $action = 'delete';
} elseif ( isset( $_POST['wp-preview'] ) && 'dopreview' === $_POST['wp-preview'] ) {
    $action = 'preview';
}

$sendback = wp_get_referer();
if ( ! $sendback ||
    str_contains( $sendback, 'post.php' ) ||
    str_contains( $sendback, 'post-new.php' ) ) {
    if ( 'attachment' === $post_type ) {
        $sendback = admin_url( 'upload.php' );
    } else {
        $sendback = admin_url( 'edit.php' );
        if ( ! empty( $post_type ) ) {
            $sendback = add_query_arg( 'post_type', $post_type, $sendback );
        }
    }
} else {
    $sendback = remove_query_arg( array( 'trashed', 'untrashed', 'deleted', 'ids' ), $sendback );
}

switch ( $action ) {
    case 'post-quickdraft-save':
        // Check nonce and capabilities.
        $nonce     = $_REQUEST['_wpnonce'];
        $error_msg = false;

        // For output of the Quick Draft dashboard widget.
        require_once ABSPATH . 'wp-admin/includes/dashboard.php';

        if ( ! wp_verify_nonce( $nonce, 'add-post' ) ) {
            $error_msg = __( 'Unable to submit this form, please refresh and try again.' );
        }

        if ( ! current_user_can( get_post_type_object( 'post' )->cap->create_posts ) ) {
            exit;
        }

        if ( $error_msg ) {
            return wp_dashboard_quick_press( $error_msg );
        }

        $post = get_post( $_REQUEST['post_ID'] );
        check_admin_referer( 'add-' . $post->post_type );

        $_POST['comment_status'] = get_default_comment_status( $post->post_type );
        $_POST['ping_status']    = get_default_comment_status( $post->post_type, 'pingback' );

        // Wrap Quick Draft content in the Paragraph block.
        if ( ! str_contains( $_POST['content'], '<!-- wp:paragraph -->' ) ) {
            $_POST['content'] = sprintf(
                '<!-- wp:paragraph -->%s<!-- /wp:paragraph -->',
                str_replace( array( "\r\n", "\r", "\n" ), '<br />', $_POST['content'] )
            );
        }

        edit_post();
        wp_dashboard_quick_press();
        exit;

    case 'postajaxpost':
    case 'post':
        check_admin_referer( 'add-' . $post_type );
        $post_id = 'postajaxpost' === $action ? edit_post() : write_post();
        redirect_post( $post_id );
        exit;

    case 'edit':
        $editing = true;

        if ( empty( $post_id ) ) {
            wp_redirect( admin_url( 'post.php' ) );
            exit;
        }

        if ( ! $post ) {
            wp_die( __( 'You attempted to edit an item that does not exist. Perhaps it was deleted?' ), 404 );
        }

        if ( ! $post_type_object ) {
            wp_die( __( 'Invalid post type.' ), 400 );
        }

        if ( ! in_array( $typenow, get_post_types( array( 'show_ui' => true ) ), true ) ) {
            wp_die( __( 'Sorry, you are not allowed to edit posts in this post type.' ), 403 );
        }

        if ( ! current_user_can( 'edit_post', $post_id ) ) {
            wp_die( __( 'Sorry, you are not allowed to edit this item.' ), 403 );
        }

        if ( 'trash' === $post->post_status ) {
            wp_die( __( 'You cannot edit this item because it is in the Trash. Please restore it and try again.' ), 409 );
        }

        if ( ! empty( $_GET['get-post-lock'] ) ) {
            check_admin_referer( 'lock-post_' . $post_id );
            wp_set_post_lock( $post_id );
            wp_redirect( get_edit_post_link( $post_id, 'url' ) );
            exit;
        }

        $post_type = $post->post_type;
        if ( 'post' === $post_type ) {
            $parent_file   = 'edit.php';
            $submenu_file  = 'edit.php';
            $post_new_file = 'post-new.php';
        } elseif ( 'attachment' === $post_type ) {
            $parent_file   = 'upload.php';
            $submenu_file  = 'upload.php';
            $post_new_file = 'media-new.php';
        } else {
            if ( $post_type_object->show_in_menu && true !== $post_type_object->show_in_menu ) {
                $parent_file = $post_type_object->show_in_menu;
            } else {
                $parent_file = "edit.php?post_type=$post_type";
            }
            $submenu_file  = "edit.php?post_type=$post_type";
            $post_new_file = "post-new.php?post_type=$post_type";
        }

        $title = $post_type_object->labels->edit_item;

        /**
         * Allows replacement of the editor.
         *
         * @since 4.9.0
         *
         * @param bool    $replace Whether to replace the editor. Default false.
         * @param WP_Post $post    Post object.
         */
        if ( true === apply_filters( 'replace_editor', false, $post ) ) {
            break;
        }

        if ( use_block_editor_for_post( $post ) ) {
            require ABSPATH . 'wp-admin/edit-form-blocks.php';
            break;
        }

        if ( ! wp_check_post_lock( $post->ID ) ) {
            $active_post_lock = wp_set_post_lock( $post->ID );

            if ( 'attachment' !== $post_type ) {
                wp_enqueue_script( 'autosave' );
            }
        }

        $post = get_post( $post_id, OBJECT, 'edit' );

        if ( post_type_supports( $post_type, 'comments' ) ) {
            wp_enqueue_script( 'admin-comments' );
            enqueue_comment_hotkeys_js();
        }

        require ABSPATH . 'wp-admin/edit-form-advanced.php';

        break;

    case 'editattachment':
        check_admin_referer( 'update-post_' . $post_id );

        // Don't let these be changed.
        unset( $_POST['guid'] );
        $_POST['post_type'] = 'attachment';

        // Update the thumbnail filename.
        $newmeta          = wp_get_attachment_metadata( $post_id, true );
        $newmeta['thumb'] = wp_basename( $_POST['thumb'] );

        wp_update_attachment_metadata( $post_id, $newmeta );

        // Intentional fall-through to trigger the edit_post() call.
    case 'editpost':
        check_admin_referer( 'update-post_' . $post_id );

        $post_id = edit_post();

        // Session cookie flag that the post was saved.
        if ( isset( $_COOKIE['wp-saving-post'] ) && $_COOKIE['wp-saving-post'] === $post_id . '-check' ) {
            setcookie( 'wp-saving-post', $post_id . '-saved', time() + DAY_IN_SECONDS, ADMIN_COOKIE_PATH, COOKIE_DOMAIN, is_ssl() );
        }

        redirect_post( $post_id ); // Send user on their way while we keep working.

        exit;

    case 'trash':
        check_admin_referer( 'trash-post_' . $post_id );

        if ( ! $post ) {
            wp_die( __( 'The item you are trying to move to the Trash no longer exists.' ), 410 );
        }

        if ( ! $post_type_object ) {
            wp_die( __( 'Invalid post type.' ), 400 );
        }

        if ( ! current_user_can( 'delete_post', $post_id ) ) {
            wp_die( __( 'Sorry, you are not allowed to move this item to the Trash.' ), 403 );
        }

        $user_id = wp_check_post_lock( $post_id );
        if ( $user_id ) {
            $user = get_userdata( $user_id );
            /* translators: %s: User's display name. */
            wp_die( sprintf( __( 'You cannot move this item to the Trash. %s is currently editing.' ), $user->display_name ), 409 );
        }

        if ( ! wp_trash_post( $post_id ) ) {
            wp_die( __( 'Error in moving the item to Trash.' ), 500 );
        }

        wp_redirect(
            add_query_arg(
                array(
                    'trashed' => 1,
                    'ids'     => $post_id,
                ),
                $sendback
            )
        );
        exit;

    case 'untrash':
        check_admin_referer( 'untrash-post_' . $post_id );

        if ( ! $post ) {
            wp_die( __( 'The item you are trying to restore from the Trash no longer exists.' ), 410 );
        }

        if ( ! $post_type_object ) {
            wp_die( __( 'Invalid post type.' ), 400 );
        }

        if ( ! current_user_can( 'delete_post', $post_id ) ) {
            wp_die( __( 'Sorry, you are not allowed to restore this item from the Trash.' ), 403 );
        }

        if ( ! wp_untrash_post( $post_id ) ) {
            wp_die( __( 'Error in restoring the item from Trash.' ), 500 );
        }

        $sendback = add_query_arg(
            array(
                'untrashed' => 1,
                'ids'       => $post_id,
            ),
            $sendback
        );
        wp_redirect( $sendback );
        exit;

    case 'delete':
        check_admin_referer( 'delete-post_' . $post_id );

        if ( ! $post ) {
            wp_die( __( 'This item has already been deleted.' ), 410 );
        }

        if ( ! $post_type_object ) {
            wp_die( __( 'Invalid post type.' ), 400 );
        }

        if ( ! current_user_can( 'delete_post', $post_id ) ) {
            wp_die( __( 'Sorry, you are not allowed to delete this item.' ), 403 );
        }

        if ( 'attachment' === $post->post_type ) {
            $force = ( ! MEDIA_TRASH );
            if ( ! wp_delete_attachment( $post_id, $force ) ) {
                wp_die( __( 'Error in deleting the attachment.' ), 500 );
            }
        } else {
            if ( ! wp_delete_post( $post_id, true ) ) {
                wp_die( __( 'Error in deleting the item.' ), 500 );
            }
        }

        wp_redirect( add_query_arg( 'deleted', 1, $sendback ) );
        exit;

    case 'preview':
        check_admin_referer( 'update-post_' . $post_id );

        $url = post_preview();

        wp_redirect( $url );
        exit;

    case 'toggle-custom-fields':
        check_admin_referer( 'toggle-custom-fields', 'toggle-custom-fields-nonce' );

        $current_user_id = get_current_user_id();
        if ( $current_user_id ) {
            $enable_custom_fields = (bool) get_user_meta( $current_user_id, 'enable_custom_fields', true );
            update_user_meta( $current_user_id, 'enable_custom_fields', ! $enable_custom_fields );
        }

        wp_safe_redirect( wp_get_referer() );
        exit;

    default:
        /**
         * Fires for a given custom post action request.
         *
         * The dynamic portion of the hook name, `$action`, refers to the custom post action.
         *
         * @since 4.6.0
         *
         * @param int $post_id Post ID sent with the request.
         */
        do_action( "post_action_{$action}", $post_id );

        wp_redirect( admin_url( 'edit.php' ) );
        exit;
} // End switch.

require_once ABSPATH . 'wp-admin/admin-footer.php';