using AppScaffolding;
using CommandLine;
using LibationFileManager;
using System;
using System.IO;
using System.Linq;
using System.Reflection;

namespace LibationCli;

public static class Setup
{
	public static void Initialize()
	{
		//***********************************************//
		//                                               //
		//   do not use Configuration before this line   //
		//                                               //
		//***********************************************//
		var config = LibationScaffolding.RunPreConfigMigrations();

		if (!Directory.Exists(config.LibationFiles.Location))
		{
			Console.Error.WriteLine($"Cannot find LibationFiles at {config.LibationFiles.Location}");
			PrintLibationFilestipAndExit();
		}

		if (!File.Exists(config.LibationFiles.SettingsFilePath))
		{
			Console.Error.WriteLine($"Cannot find settings files at {config.LibationFiles.SettingsFilePath}");
			PrintLibationFilestipAndExit();
		}

		LibationScaffolding.RunPostConfigMigrations(config, ephemeralSettings: true);

#if classic
		LibationScaffolding.RunPostMigrationScaffolding(Variety.Classic, config);
#else
		LibationScaffolding.RunPostMigrationScaffolding(Variety.Chardonnay, config);
#endif
	}

	static void PrintLibationFilestipAndExit()
	{
		Console.Error.WriteLine($"Override LibationFiles directory location with '--libationFiles' option or '{LibationFiles.LIBATION_FILES_DIR}' environment variable.");
		Environment.Exit(-1);
	}

	public static Type[] LoadVerbs() => Assembly.GetExecutingAssembly()
		.GetTypes()
		.Where(t => t.GetCustomAttribute<VerbAttribute>() is not null)
		.ToArray();
}