// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.

using System;
using System.Text;
using System.Diagnostics;

namespace Microsoft.Arcade.Common;

public struct CommandResult
{
    public static readonly CommandResult Empty = new CommandResult();

    public ProcessStartInfo StartInfo { get; }
    public int ExitCode { get; }
    public string StdOut { get; }
    public string StdErr { get; }

    public CommandResult(ProcessStartInfo startInfo, int exitCode, string stdOut, string stdErr)
    {
        StartInfo = startInfo;
        ExitCode = exitCode;
        StdOut = stdOut;
        StdErr = stdErr;
    }

    public void EnsureSuccessful(bool suppressOutput = false)
    {
        if (ExitCode != 0)
        {
            StringBuilder message = new StringBuilder($"Command failed with exit code {ExitCode}: {StartInfo.FileName} {StartInfo.Arguments}");

            if (!suppressOutput)
            {
                if (!string.IsNullOrEmpty(StdOut))
                {
                    message.AppendLine($"{Environment.NewLine}Standard Output:{Environment.NewLine}{StdOut}");
                }

                if (!string.IsNullOrEmpty(StdErr))
                {
                    message.AppendLine($"{Environment.NewLine}Standard Error:{Environment.NewLine}{StdErr}");
                }
            }

            throw new Exception(message.ToString());
        }
    }
}