using System;
using System.IO;
using System.Text;
using ln.build.commands;
using ln.logging;

namespace ln.build.pipeline
{
    public class ShellCommand : StageCommand
    {
        public event CommandExitedDelegate OnCommandExited;

        public CommandRunner CommandRunner { get; }

        public ShellCommand(string filename,params CommandRunner.Argument[] arguments)
        :base("SH")
        {
            CommandRunner = new CommandRunner("/bin/bash", "-c"){ Throw = CRThrow.NEVER, };
            CommandRunner.AddArguments(arguments);
        }
        public ShellCommand(string cmdline)
        :base("SH")
        {
            CommandRunner = new CommandRunner("/bin/bash", "-c", string.Format("\"{0}\"",cmdline)){ Throw = CRThrow.NEVER, };
        }

        public override void Run(Stage stage)
        {
            MemoryStream logStream = new MemoryStream();
            int result = CommandRunner.Run(stage.CommandEnvironment, logStream);
            stage.CommandEnvironment.Logger.Log(LogLevel.INFO, "command output:\n{0}", Encoding.UTF8.GetString(logStream.ToArray()));
            stage.CommandEnvironment.Logger.Log(LogLevel.INFO, "command exit code: {0}", result);
            if (result != 0)
                throw new Exception(String.Format("command exited with code {0} [0x{0:x}]", result));
        }
    }

}