<?php
if ( ! defined( 'ABSPATH' ) && ! defined( 'WP_UNINSTALL_PLUGIN' ) ) {
	exit();
}

// check if the option to remove data on uninstall is enabled
$options = get_option( 'isc_options' );
if ( ! empty( $options['remove_on_uninstall'] ) ) {
	global $wpdb;

	// delete post meta fields
	delete_post_meta_by_key( 'isc_post_images' );
	delete_post_meta_by_key( 'isc_image_posts' );
	delete_post_meta_by_key( 'isc_image_source' );
	delete_post_meta_by_key( 'isc_image_source_own' );
	delete_post_meta_by_key( 'isc_image_source_url' );
	delete_post_meta_by_key( 'isc_ai_label' );
	delete_post_meta_by_key( 'isc_possible_usages' );
	delete_post_meta_by_key( 'isc_possible_usages_last_check' );
	delete_post_meta_by_key( 'isc_post_images_before_update' );
	delete_post_meta_by_key( 'isc_last_index' );
	delete_post_meta_by_key( 'isc_ignored_unused_image' );

	// delete main plugin options
	delete_option( 'isc_options' );
	// delete storage
	delete_option( 'isc_storage' );
	// delete the total number of unused images (Pro). Option no longer set since version 3.9
	delete_option( 'isc_unused_images_total_items' );
	// delete the last log created by the Scanner
	delete_option( 'isc_scanner_log' );

	// delete user meta
	delete_metadata( 'user', null, 'isc_newsletter_subscribed', '', true );

	// drop the index table
	$table_name = $wpdb->prefix . 'isc_index';
	// phpcs:ignore
	$wpdb->query( "DROP TABLE IF EXISTS $table_name" );

	// delete the log file if it exists
	$upload_dir = wp_upload_dir();
	// Hash the AUTH_KEY to create the same filename that was used
	$log_file_name = 'image-source-control_' . hash( 'crc32', AUTH_KEY ) . '.log';
	$log_file_path = $upload_dir['basedir'] . '/' . $log_file_name;
	if ( file_exists( $log_file_path ) ) {
		wp_delete_file( $log_file_path );
	}
}