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using System;
using System.Collections.Generic;
using System.IO;
using NW4RTools;

namespace ConsoleApp {
	public class ImportObjCommand : ResFileCommand {
		public ImportObjCommand() : base("import an .obj model and associated textures") {
		}

		protected override void OperateOnFile(string[] args) {
			if (args.Length < 2 || args.Length > 3) {
				Console.WriteLine("invalid syntax.\n" + GetHelp(null));
				return;
			}

			string currentDir = Directory.GetCurrentDirectory();
			string objPath = Path.Combine(currentDir, args[0]);
			string objDir = Path.GetDirectoryName(objPath);

			ObjImporter.LightmapType lmType = ObjImporter.LightmapType.None;
			if (args.Length == 3 && args[2] != "none") {
				switch (args[2]) {
				case "map":
					lmType = ObjImporter.LightmapType.Map;
					break;
				case "mapobj":
					lmType = ObjImporter.LightmapType.MapObj;
					break;
				default:
					Console.WriteLine("warning: unknown lightmap type {0}", args[2]);
					break;
				}
			}


			Console.WriteLine("importing model...");

			ObjImporter.ImportModel(objDir, new StreamReader(objPath), TargetFile, args[1], lmType);

			Console.WriteLine("saving file...");

			SaveFile();

			Console.WriteLine("done!");
		}

		public override string GetHelp(string[] args) {
			return "syntax: import-obj <brres-filename> <obj-filename> <model-name> [lightmap-mode]\n"
					+ "  imports an .obj model and the associated textures.\n\n"
					+ "  model-name will be the name of the ResMdl.\n"
					+ "  lightmap-mode may be: none (default), map, mapobj";
		}
	}



	public class ExportObjCommand : ResFileCommand {
		public ExportObjCommand() : base("export an .obj model") {
		}

		protected override void OperateOnFile(string[] args) {
			if (args.Length != 2) {
				Console.WriteLine("invalid syntax.\n" + GetHelp(null));
				return;
			}

			string currentDir = Directory.GetCurrentDirectory();
			string objPath = Path.Combine(currentDir, args[0]);
			string objDir = Path.GetDirectoryName(objPath);

			Console.WriteLine("exporting model...");

			ObjExporter.WriteModel(new StreamWriter(objPath), TargetFile, args[1]);

			Console.WriteLine("done!");
		}

		public override string GetHelp(string[] args) {
			return "syntax: export-obj <brres-filename> <obj-filename> <model-name>\n"
					+ "  exports a model as .obj.\n\n"
					+ "  model-name will be the name of the ResMdl.\n"
					+ "  more settings will be added later.";
		}
	}



	public class ExportColladaCommand : ResFileCommand {
		public ExportColladaCommand() : base("export a COLLADA (.dae) model") {
		}

		protected override void OperateOnFile(string[] args) {
			if (args.Length != 2) {
				Console.WriteLine("invalid syntax.\n" + GetHelp(null));
				return;
			}

			string currentDir = Directory.GetCurrentDirectory();
			string daePath = Path.Combine(currentDir, args[0]);
			string daeDir = Path.GetDirectoryName(daePath);

			Console.WriteLine("exporting model...");

			ColladaExporter.WriteModel(File.OpenWrite(daePath), TargetFile, args[1]);

			Console.WriteLine("done!");
		}

		public override string GetHelp(string[] args) {
			return "syntax: export-collada <brres-filename> <dae-filename> <model-name>\n"
					+ "  exports a model as COLLADA (.dae).\n\n"
					+ "  model-name will be the name of the ResMdl.\n"
					+ "  more settings will be added later.";
		}
	}
}