using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using Newtonsoft.Json;

namespace Scripty

{

public class Settings

{

public string ProjectFilePath = null;

public string SolutionFilePath = null;

public IReadOnlyList<string> ScriptFilePaths = null;

public IReadOnlyDictionary<string, string> Properties = null;

public bool Attach = false;

private IReadOnlyList<KeyValuePair<string, string>> _properties = null;

public bool ParseArgs(string[] args, out bool hasErrors)

{

System.CommandLine.ArgumentSyntax parsed = System.CommandLine.ArgumentSyntax.Parse(args, syntax =>

{

syntax.DefineOption("attach", ref Attach, "Pause execution at the start of the program until a debugger is attached.");

syntax.DefineOption("solution", ref SolutionFilePath, "The full path of the solution file that contains the project.");

syntax.DefineOptionList("p", ref _properties, ParseProperty, "The build properties.");

syntax.DefineParameter(nameof(ProjectFilePath), ref ProjectFilePath, "The full path of the project file.");

syntax.DefineParameterList(nameof(ScriptFilePaths), ref ScriptFilePaths, "The path(s) of script files to evaluate (can be absolute or relative to the project).");

});

if (_properties != null)

{

Dictionary<string, string> props = new Dictionary<string, string>();

foreach (KeyValuePair<string, string> pair in _properties)

{

props[pair.Key] = pair.Value;

}

Properties = props;

}

hasErrors = parsed.HasErrors;

return !(parsed.IsHelpRequested() || hasErrors);

}

private KeyValuePair<string, string> ParseProperty(string argument)

{

int index = argument.IndexOf('=');

if (index < 0)

{

throw new InvalidOperationException("Malformed property argument.");

}

return new KeyValuePair<string, string>(

argument.Substring(0, index),

argument.Substring(index + 1)

);

}

public void ReadStdin()

{

string stdin = Console.In.ReadToEnd();

JsonConvert.PopulateObject(stdin, this);

}

}

}