// Copyright © 2013 The CefSharp Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.

using System.Diagnostics;
using System.Runtime.CompilerServices;
using CefSharp.RenderProcess;

namespace CefSharp.BrowserSubprocess
{
    /// <summary>
    /// When implementing your own BrowserSubprocess
    /// - For Full .Net use <see cref="WcfBrowserSubprocessExecutable"/>
    /// - For .Net Core use <see cref="BrowserSubprocessExecutable"/> (No WCF Support)
    /// - Include an app.manifest with the dpi/compatability sections, this is required (this project contains the relevant).
    /// - If you are targeting x86/Win32 then you should set /LargeAddressAware (https://docs.microsoft.com/en-us/cpp/build/reference/largeaddressaware?view=vs-2017)
    /// </summary>
    public class Program
    {
        public static int Main(string[] args)
        {
            Debug.WriteLine("BrowserSubprocess starting up with command line: " + string.Join("\n", args));

            if(!System.IO.File.Exists("CefSharp.dll") && System.IO.File.Exists("..\\CefSharp.dll"))
            {
                //For publshing ClickOnce AnyCPU CefSharp.dll isn't included in the x64 build
                //and the  BrowserSubprocess fails to launch as a result.
                //As a temp workaround load the file from the parent directory.
                System.Reflection.Assembly.LoadFrom("..\\CefSharp.dll");
            }

            return MainInternal(args);
        }

        [MethodImpl(MethodImplOptions.NoInlining)]
        private static int MainInternal(string[] args)
        {
            SubProcess.EnableHighDPISupport();

            //Add your own custom implementation of IRenderProcessHandler here
            IRenderProcessHandler handler = null;

            //The WcfBrowserSubprocessExecutable provides BrowserSubProcess functionality
            //specific to CefSharp, WCF support (required for Sync JSB) will optionally be
            //enabled if the CefSharpArguments.WcfEnabledArgument command line arg is present
            //For .Net Core use BrowserSubprocessExecutable as there is no WCF support
            var browserProcessExe = new WcfBrowserSubprocessExecutable();
            var result = browserProcessExe.Main(args, handler);

            Debug.WriteLine("BrowserSubprocess shutting down.");

            return result;
        }
    }
}