using System.Diagnostics;

namespace Updater.Core;

public sealed class ProcessManager : IProcessManager
{
    private readonly ILogger _log;
    public ProcessManager(ILogger log) => _log = log;

    public void StartApp(string installPath, string appExe, int delayMs)
    {
        var appPath = Path.Combine(installPath, appExe);
        if (!File.Exists(appPath))
            throw new FileNotFoundException("Executable not found after install", appPath);

        if (delayMs > 0)
        {
            _log.Info($"Waiting {delayMs} ms before restart...");
            Thread.Sleep(delayMs);
        }

        _log.Info($"Starting '{appExe}'...");
        Process.Start(new ProcessStartInfo
        {
            FileName = appPath,
            UseShellExecute = true,
            WorkingDirectory = installPath
        });
    }
}