/// <summary> /// Validates <see cref="ILibraryInstallationState"/> /// </summary> /// <param name="state">The <see cref="ILibraryInstallationState"/> to validate.</param> /// <param name="provider">The <see cref="IProvider"/> used to validate <see cref="ILibraryInstallationState"/></param> /// <returns><see cref="ILibraryOperationResult"/> with the result of the validation</returns> public static async Task <ILibraryOperationResult> IsValidAsync(this ILibraryInstallationState state, IProvider provider) { if (state == null) { return(new LibraryOperationResult(state, new[] { PredefinedErrors.UnknownError() })); } if (provider == null) { return(new LibraryOperationResult(state, new[] { PredefinedErrors.ProviderUnknown(provider.Id) })); } if (string.IsNullOrEmpty(state.Name)) { return(new LibraryOperationResult(state, new[] { PredefinedErrors.LibraryIdIsUndefined() })); } ILibraryCatalog catalog = provider.GetCatalog(); try { await catalog.GetLibraryAsync(state.Name, state.Version, CancellationToken.None).ConfigureAwait(false); } catch { return(new LibraryOperationResult(state, new[] { PredefinedErrors.UnableToResolveSource(state.Name, state.Version, provider.Id) })); } if (string.IsNullOrEmpty(state.DestinationPath)) { return(new LibraryOperationResult(state, new[] { PredefinedErrors.PathIsUndefined() })); } if (state.DestinationPath.IndexOfAny(Path.GetInvalidPathChars()) >= 0) { return(new LibraryOperationResult(state, new[] { PredefinedErrors.DestinationPathHasInvalidCharacters(state.DestinationPath) })); } return(LibraryOperationResult.FromSuccess(state)); }