package wasm

import "istio.io/istio/pkg/monitoring"

// Const strings for label value.
const (
	// For remote fetch metric.
	fetchSuccess     = "success"
	downloadFailure  = "download_failure"
	manifestFailure  = "manifest_failure"
	checksumMismatch = "checksum_mismatched"

	// For Wasm conversion metric.
	conversionSuccess   = "success"
	noRemoteLoad        = "no_remote_load"
	marshalFailure      = "marshal_failure"

		fetcher := NewImageFetcher(ctx, imgFetcherOps)
		binaryFetcher, dChecksum, err = fetcher.PrepareFetch(u.Host + u.Path)
		if err != nil {
			wasmRemoteFetchCount.With(resultTag.Value(manifestFailure)).Increment()
			return nil, fmt.Errorf("could not fetch Wasm OCI image: %v", err)
		}
	default:
		return nil, fmt.Errorf("unsupported Wasm module downloading URL scheme: %v", u.Scheme)
	}