<?php
/** Remove opt-in StackVik data through WordPress's native uninstall hook. */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

function stackvik_free_uninstall_cleanup() {
    if ( defined( 'SVK_FILE' ) ) { return; }
	wp_clear_scheduled_hook( 'svk_refresh_feed' );
	wp_unschedule_hook( 'svk_backfill' );
	wp_unschedule_hook( 'svk_refresh_publication' );
	$s = (array) get_option( 'svk_settings', array() );
	if ( empty( $s['remove_data_on_uninstall'] ) ) { return; }
	$publications = (array) get_option( 'svk_publications', array() );
	foreach ( array_keys( $publications ) as $id ) {
		if ( ! is_string( $id ) || ! preg_match( '/^[a-z0-9_-]+$/D', $id ) ) { continue; }
		foreach ( array( 'settings', 'posts', 'featured', 'pending', 'seen_guid', 'last_fetch', 'backfill_status', 'feed_meta' ) as $suffix ) { delete_option( 'svk_pub_' . $id . '_' . $suffix ); }
	}
	delete_option( 'svk_publications' );
	if ( ! taxonomy_exists( 'svk_collection' ) ) { register_taxonomy( 'svk_collection', 'svk_article', array( 'public'=>false ) ); }
	$terms = get_terms( array( 'taxonomy'=>'svk_collection', 'hide_empty'=>false, 'fields'=>'ids' ) );
	if ( ! is_wp_error( $terms ) ) { foreach ( $terms as $term ) { wp_delete_term( $term, 'svk_collection' ); } }

	foreach ( array( 'svk_settings', 'svk_posts', 'svk_featured', 'svk_pending', 'svk_seen_guid', 'svk_last_fetch', 'svk_backfill_status', 'svk_feed_meta' ) as $opt ) {
		delete_option( $opt );
	}
	wp_clear_scheduled_hook( 'svk_refresh_feed' );
	wp_clear_scheduled_hook( 'svk_backfill' );

	// Stored article listings (copies of Substack data; the articles themselves stay on Substack).
	$ids = get_posts( array( 'post_type' => 'svk_article', 'post_status' => 'any', 'numberposts' => -1, 'fields' => 'ids' ) );
	foreach ( $ids as $id ) {
		wp_delete_post( $id, true );
	}
}