// Copyright (c) Microsoft Corporation. All rights reserved.

// Licensed under the MIT license.

using System;

using System.Diagnostics;

using System.IO;

using Microsoft.ClearScript.V8;

namespace Microsoft.ClearScript.Test

{

internal static class ClearScriptConsole

{

public static void Main()

{

using (var engine = new V8ScriptEngine(typeof(ClearScriptConsole).Name, V8ScriptEngineFlags.EnableDebugging))

{

engine.AddHostObject("host", new ExtendedHostFunctions());

engine.AddHostObject("lib", HostItemFlags.GlobalMembers, new HostTypeCollection("mscorlib", "System", "System.Core", "ClearScript"));

engine.AllowReflection = true;

RunStartupFile(engine);

RunConsole(engine);

}

}

private static void RunStartupFile(ScriptEngine engine)

{

try

{

var fileName = Path.ChangeExtension("Startup", engine.FileNameExtension);

var filePath = Path.Combine(Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName), fileName);

if (File.Exists(filePath))

{

engine.Execute(fileName, File.ReadAllText(filePath));

}

}

catch (Exception exception)

{

Console.WriteLine("Error: {0}", exception.GetBaseException().Message);

}

}

private static void RunConsole(ScriptEngine engine)

{

while (true)

{

Console.Write("-> ");

var command = Console.ReadLine();

if (command == null)

{

break;

}

if (command.Trim().Length < 1)

{

continue;

}

try

{

var result = engine.ExecuteCommand(command);

if (result != null)

{

Console.WriteLine(result);

}

}

catch (Exception exception)

{

Console.WriteLine("Error: {0}", exception.GetBaseException().Message);

}

}

}

}

}