using System;
using Microsoft.CodeAnalysis.CSharp.Scripting;
using Microsoft.CodeAnalysis.Scripting;

namespace Papercut.Core;

public class RoslynHost
{
	/// <summary>
	/// Run the provided C# script
	/// </summary>
	/// <param name="code">The script to run</param>
	/// <param name="imports">Namespace imports for the script</param>
	/// <param name="globals">Values that will be made available to the script</param>
	/// <param name="cancellationToken"></param>
	public static async Task RunScript(string code, string[] imports,
		RoslynHostGlobals globals,
		CancellationToken cancellationToken = default)
	{
		ScriptOptions options = ScriptOptions.Default
			.AddImports(imports);

		try
		{
			var result = await CSharpScript.RunAsync(code, options, globals,
				cancellationToken: cancellationToken);
		}
		catch (CompilationErrorException ex)
		{
			Console.WriteLine(code);
			Console.WriteLine(ex);
		}
		catch (Exception ex)
		{
			Console.WriteLine(code);
			Console.WriteLine(ex);
		}
	}
}

public class RoslynHostGlobals
{
	public PapercutWriter Papercut { get; set; }

	public RoslynHostGlobals(PapercutWriter writer)
	{
		this.Papercut = writer;
	}
}