/*
 * Copyright (C)2005-2017 Haxe Foundation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

using lua.NativeStringTools;
import lua.Package;
import lua.Lua;
import lua.Table;
import lua.TableTools;
import lua.Os;
import lua.FileHandle;
import lua.Io;
import lua.Boot;
import sys.io.FileInput;
import sys.io.FileOutput;

@:coreApi
class Sys {
	static var _system_name : String;
	public static inline function print( v : Dynamic ) : Void {
		return lua.Lib.print(v);
	}
	public static inline function println( v : Dynamic ) : Void {
		return lua.Lib.println(v);
	}
	public inline static function args() : Array<String> {
		var args = lua.Lib.tableToArray(lua.Lua.arg).copy();
		args.shift();
		return args;
	}
	public static function command( cmd : String, ?args : Array<String> ) : Int  {
		var p = new sys.io.Process(cmd, args);
		var code = p.exitCode();
		p.close();
		return code;
	}


	public inline static function cpuTime() : Float {
		return lua.Os.clock();
	}

	public inline static function exit(code : Int) : Void {
		lua.Os.exit(code);
	}

	public inline static function getChar(echo : Bool) : Int {
		return lua.Io.read(1).byte();
	}

	static function getSystemName() : String {
		return lua.Boot.systemName();
	}

	public static function systemName() : String {
		if (_system_name == null) _system_name = getSystemName();
		return _system_name;
	}

	public static function environment() : Map<String,String>  {
		var map = new Map<String,String>();
		var f = function(k,v) map.set(k,v);
		untyped __lua__("for k,v in lua.lib.environ.Environ.enum() do f(k,v) end");
		return map;
	}

	@:deprecated("Use programPath instead") public static function executablePath() : String {
		return lua.lib.luv.Misc.exepath();
	}

	public inline static function programPath() : String {
		return haxe.io.Path.join([getCwd(), Lua.arg[0]]);
	}

	public inline static function getCwd() : String
		return lua.lib.luv.Misc.cwd();

	public inline static function setCwd(s : String) : Void
		lua.lib.luv.Misc.chdir(s);

	public inline static function getEnv(s : String) : String {
		return lua.Os.getenv(s);
	}
	public inline static function putEnv(s : String, v : String ) : Void {
		lua.lib.environ.Environ.setenv(s,v);
	}

	public inline static function setTimeLocale(loc : String) : Bool  {
		// TODO Verify
		return lua.Os.setlocale(loc) != null;
	}

	public static function sleep(seconds : Float) : Void
		lua.lib.luv.Thread.sleep(Math.floor(seconds * 1000));


	public inline static function stderr() : haxe.io.Output return new FileOutput(Io.stderr);
	public inline static function stdin()  : haxe.io.Input return new FileInput(Io.stdin);
	public inline static function stdout() : haxe.io.Output return new FileOutput(Io.stdout);

	public static function time() : Float
		return lua.lib.luasocket.Socket.gettime();

}