/*----------------------------------------------------------

This Source Code Form is subject to the terms of the

Mozilla Public License, v.2.0. If a copy of the MPL

was not distributed with this file, You can obtain one

at http://mozilla.org/MPL/2.0/.

----------------------------------------------------------*/

using System;

using OneScript.StandardLibrary;

using ScriptEngine;

using ScriptEngine.HostedScript;

using ScriptEngine.Hosting;

using ScriptEngine.Machine;

using ScriptEngine.Machine.Debugger;

namespace oscript

{

class ExecuteScriptBehavior : AppBehavior, IHostApplication, ISystemLogWriter

{

protected string[] _scriptArgs;

protected string _path;

public ExecuteScriptBehavior(string path, string[] args)

{

_scriptArgs = args;

_path = path;

}

public IDebugger DebugController { get; set; } = new DisabledDebugger();

public string CodeStatFile { get; set; }

public bool CodeStatisticsEnabled => CodeStatFile != null;

public override int Execute()

{

if (!System.IO.File.Exists(_path))

{

Echo($"Script file is not found '{_path}'");

return 2;

}

SystemLogger.SetWriter(this);

var builder = ConsoleHostBuilder.Create(_path);

builder.WithDebugger(DebugController);

CodeStatProcessor codeStatProcessor = null;

if (CodeStatisticsEnabled)

{

codeStatProcessor = new CodeStatProcessor();

builder.Services.RegisterSingleton<ICodeStatCollector>(codeStatProcessor);

}

var hostedScript = ConsoleHostBuilder.Build(builder);

var source = hostedScript.Loader.FromFile(_path);

Process process;

try

{

process = hostedScript.CreateProcess(this, source);

}

catch (Exception e)

{

ShowExceptionInfo(e);

return 1;

}

var result = process.Start();

hostedScript.Dispose();

if (codeStatProcessor != null)

{

codeStatProcessor.EndCodeStat();

var codeStat = codeStatProcessor.GetStatData();

var statsWriter = new CodeStatWriter(CodeStatFile, CodeStatWriterType.JSON);

statsWriter.Write(codeStat);

}

return result;

}

#region IHostApplication Members

public void Echo(string text, MessageStatusEnum status = MessageStatusEnum.Ordinary)

{

ConsoleHostImpl.Echo(text, status);

}

public void ShowExceptionInfo(Exception exc)

{

ConsoleHostImpl.ShowExceptionInfo(exc);

}

public bool InputString(out string result, string prompt, int maxLen, bool multiline)

{

return ConsoleHostImpl.InputString(out result, prompt, maxLen, multiline);

}

public string[] GetCommandLineArguments()

{

return _scriptArgs;

}

#endregion

public void Write(string text)

{

Console.Error.WriteLine(text);

}

}

}