using System;
using System.Collections.Generic;
using ln.build.commands;

namespace ln.build.pipeline
{
    public abstract class StageCommand
    {
        public string Name { get; }

        public StageCommand(string name)
        {
            Name = name;
        }

        public abstract void Run(Stage stage);





        static Dictionary<string,Func<string,StageCommand>> commandFactories = new Dictionary<string, Func<string, StageCommand>>();

        public static StageCommand Create(string cmdline)
        {
            string[] tokens = cmdline.Split(new char[]{' ','\t'}, 2);
            
            if (commandFactories.TryGetValue(tokens[0],out Func<string,StageCommand> factory))
            {
                return factory(tokens[1]);
            }
            throw new Exception(string.Format("can't find factory for command keyword '{0}'", tokens[0]));
        }

        static StageCommand()
        {
            commandFactories.Add("SH", (args) => new ShellCommand(args));
            commandFactories.Add("DOTNET", (args) => new DotNetCommand(args));
            commandFactories.Add("GITEA", (args) => new DotNetCommand(args));
            commandFactories.Add("RELEASE", (args) => new ReleaseCommand(args));

        }

    }

}