add_action( 'wpforms_post_submissions_process', 'set_post_category_from_dropdown', 10, 4 );
/* signature: ($post_id, $fields, $form_data, $entry_id)  – docs :contentReference[oaicite:0]{index=0} */
function set_post_category_from_dropdown( $post_id, $fields, $form_data, $entry_id ) {
    if ( (int) $form_data['id'] !== 10540 ) {
        return;                             // wrong form – bail out
    }

    // ---- get the user’s choice (field ID 1) ----
    if ( empty( $fields[1]['value_raw'] ) ) {
        return;
    }
    $choice = trim( $fields[1]['value_raw'] );

    // ---- map label → term-ID ----
    $map = [
        'Event'    => 16,
        'Position' => 17,
    ];
    if ( empty( $map[ $choice ] ) ) {
        return;
    }
    $term_id = (int) $map[ $choice ];

    // ---- merge with any existing cats, drop “Uncategorized” (ID 1) ----
    $current = wp_get_object_terms( $post_id, 'category', [ 'fields' => 'ids' ] );
    $new     = array_unique( array_merge( array_diff( $current, [ 1 ] ), [ $term_id ] ) );

    wp_set_object_terms( $post_id, $new, 'category', false ); // replace list
}


add_action( 'wpforms_post_submissions_process', 'wpf_attach_pdf_and_link', 20, 4 );

function wpf_attach_pdf_and_link( $post_id, $fields, $form_data, $entry_id ) {

	/* ───── Local config ───── */
	$form_id      = 10540;                       // your form’s ID
	$pdf_field_id = 4;                           // File-Upload field ID
	$debug_to     = [ 'istefanou1@gmail.com', 'dmriley993@gmail.com' ];
	$debug_on     = false;                       // flip to true for mail debug
	$dest_rel     = '/data/posts/';              // folder under site root

	/* helper */
	$debug = function ( $subject, $data = '' ) use ( $debug_to, $debug_on ) {
		if ( ! $debug_on ) { return; }
		$body = ( is_array( $data ) || is_object( $data ) ) ? print_r( $data, true ) : (string) $data;
		foreach ( $debug_to as $addr ) {
			wp_mail( $addr, '[WPForms DBG] ' . $subject, $body );
		}
	};

	/* 1. right form? */
	if ( (int) $form_data['id'] !== $form_id ) { return; }
	$debug( 'Hook fired – post_id', $post_id );

	/* 2. did they upload a PDF? */
	if ( empty( $fields[ $pdf_field_id ]['value_raw'] ) ) { $debug( 'No PDF uploaded' ); return; }
	$items = (array) $fields[ $pdf_field_id ]['value_raw'];
	$debug( 'Raw items', $items );

	/* prepare destination paths */
	$site_root = rtrim( ABSPATH, '/' );
	$dest_dir  = $site_root . $dest_rel;
	$dest_url  = home_url( $dest_rel );

	if ( ! is_dir( $dest_dir ) && ! wp_mkdir_p( $dest_dir ) ) {
		$debug( 'Could not create destination folder', $dest_dir );
		return;
	}

	$link_block = [];

	foreach ( $items as $item ) {

		/* 3-a  extract the URL no matter the format */
		$src_url = is_array( $item ) ? ( $item['value'] ?? '' ) : $item;
		$src_url = esc_url_raw( $src_url );
		if ( ! $src_url ) { $debug( 'Skipped – empty URL', $item ); continue; }

		/* 3-b  translate URL → source path */
		$filename  = wp_basename( $src_url );
		$src_path  = str_replace( home_url(), $site_root, $src_url );
		$dest_path = $dest_dir . $filename;
		$final_url = trailingslashit( $dest_url ) . $filename;

		/* 3-c  move (rename) – fall back to copy if cross-partition */
		if ( @rename( $src_path, $dest_path ) ) {
			$debug( 'Moved file', [ 'from' => $src_path, 'to' => $dest_path ] );
		} elseif ( copy( $src_path, $dest_path ) ) {
			@unlink( $src_path );
			$debug( 'Copied file (rename failed)', [ 'from' => $src_path, 'to' => $dest_path ] );
		} else {
			$debug( 'Move/copy failed – giving up on this file', $src_path );
			continue;
		}

		/* 3-d delete entry at media */
		$attachment = get_posts( [
			'post_type'  => 'attachment',
			'meta_query' => [
				[
					'key'     => '_wp_attached_file',
					'value'   => $filename,
					'compare' => 'LIKE',
				],
			],
			'numberposts' => 1,
		] );

		if ( ! empty( $attachment ) ) {
			$attachment_id = $attachment[0]->ID;

			// Delete it
			wp_delete_attachment( $attachment_id, true );
		}

		/* 3-e  build the sentence with only “[PDF]” linked */
		$link_block[] = sprintf(
			'<p>For further information, see the attached <a href="%s" target="_blank" rel="noopener">[PDF]</a>.</p>',
			esc_url( $final_url )
		);
	}

	if ( ! $link_block ) { $debug( 'Nothing to append' ); return; }

	/* 4. append to post content */
	$current = get_post_field( 'post_content', $post_id );
	$new     = $current . "\n\n" . implode( "\n", $link_block );

	$ret = wp_update_post( [ 'ID' => $post_id, 'post_content' => $new ], true );
	$debug( 'Content append result', $ret );
}