using System.Runtime.ExceptionServices;

using Microsoft.AspNetCore.Components.Forms;

namespace Bunit;

/// <summary>

/// Extensions for the <see cref="InputFile"/> component.

/// </summary>

public static class InputFileExtensions

{

/// <summary>

/// Uploads multiple files and invokes the OnChange event.

/// </summary>

/// <param name="inputFileComponent">The <see cref="InputFile"/> component which will upload the files.</param>

/// <param name="files">Files to upload.</param>

public static void UploadFiles(

this IRenderedComponent<InputFile> inputFileComponent,

params InputFileContent[] files)

{

ArgumentNullException.ThrowIfNull(inputFileComponent);

ArgumentNullException.ThrowIfNull(files);

ArgumentOutOfRangeException.ThrowIfZero(files.Length);

var browserFiles = files.Select(file => new BUnitBrowserFile(

file.Filename ?? string.Empty,

file.LastModified ?? default,

file.Size,

file.ContentType ?? string.Empty,

file.Content));

var args = new InputFileChangeEventArgs(browserFiles.ToArray());

var uploadTask = inputFileComponent.InvokeAsync(() => inputFileComponent.Instance.OnChange.InvokeAsync(args));

if (!uploadTask.IsCompleted)

{

uploadTask.GetAwaiter().GetResult();

}

if (uploadTask.Exception?.InnerException is IOException e)

{

ExceptionDispatchInfo.Capture(e).Throw();

}

}

}