PHAsset+LegacyURL.swift

import Photos

private extension Collection where Element == URLQueryItem {

    subscript(_ name: String) -> String? {
        return first { $0.name == name }?.value
    }

}

extension PHAsset {

    static func bbq_fetchAssets(withALAssetURLs assetURLs: [URL], options: PHFetchOptions? = nil) -> PHFetchResult<PHAsset> {
        let localIdentifiers = assetURLs.compactMap { (url) -> String? in
            // assets-library://asset/asset.jpg?id=42&ext=jpg
            guard let urlComponents = URLComponents(url: url, resolvingAgainstBaseURL: true),
                urlComponents.scheme == "assets-library",
                urlComponents.host == "asset" else { return nil }
            return urlComponents.queryItems?["id"]
        }

        return fetchAssets(withLocalIdentifiers: localIdentifiers, options: options)
    }

}