/* jslint node: true */
'use strict';

var TextView				= require('./text_view.js').TextView;
var EditTextView			= require('./edit_text_view.js').EditTextView;
var ButtonView				= require('./button_view.js').ButtonView;
var VerticalMenuView		= require('./vertical_menu_view.js').VerticalMenuView;
var SpinnerMenuView			= require('./spinner_menu_view.js').SpinnerMenuView;
var ToggleMenuView			= require('./toggle_menu_view.js').ToggleMenuView;
var MaskEditTextView		= require('./mask_edit_text_view.js').MaskEditTextView;
var MultiLineEditTextView	= require('./multi_line_edit_text_view.js').MultiLineEditTextView;

var Config					= require('./config.js').config;
var ansi					= require('./ansi_term.js');

var packageJson 			= require('../package.json');

var assert					= require('assert');
var os						= require('os');
var _						= require('lodash');

exports.MCIViewFactory		= MCIViewFactory;

function MCIViewFactory(client) {
	this.client = client;
}

MCIViewFactory.prototype.getPredefinedViewLabel = function(code) {

	return {
		BN	: Config.general.boardName,
		VL	: 'ENiGMA½ v' + packageJson.version,
		VN	: packageJson.version,

		UN	: this.client.user.username,
		UI	: this.client.user.userId,
		UG	: _.values(this.client.user.groups).join(', '),
		UR	: this.client.user.properties.real_name,
		LO	: this.client.user.properties.location,
		UA	: this.client.user.properties.age,
		US	: this.client.user.properties.sex,
		UE	: this.client.user.properties.email_address,
		UW	: this.client.user.properties.web_address,
		UF	: this.client.user.properties.affiliation,
		UT	: this.client.user.properties.theme_id,

		OS	: {
			linux	: 'Linux',
			darwin	: 'Mac OS X',
			win32	: 'Windows',
			sunos	: 'SunOS',
			freebsd	: 'FreeBSD',
		}[os.platform()] || os.type(),

		OA	: os.arch(),
		SC	: os.cpus()[0].model,

		IP	: this.client.address().address,
	}[code];
};

MCIViewFactory.prototype.createFromMCI = function(mci) {
	assert(mci.code);
	assert(mci.id > 0);
	assert(mci.position);

	var view;
	var options = {
		client			: this.client,
		id				: mci.id,
		ansiSGR			: mci.SGR,
		ansiFocusSGR	: mci.focusSGR,
		position		: { row : mci.position[0], col : mci.position[1] },
	};

	function setOption(pos, name) {
		if(mci.args.length > pos && mci.args[pos].length > 0) {
			options[name] = mci.args[pos];
			return true;
		}
		return false;
	}

	function setWidth(pos) {
		if(mci.args.length > pos && mci.args[pos].length > 0) {
			if(!_.isObject(options.dimens)) {
				options.dimens = {};
			}
			options.dimens.width = parseInt(mci.args[pos], 10);
			return true;
		}
		return false;
	}

	function setFocusOption(pos, name) {
		if(mci.focusArgs && mci.focusArgs.length > pos && mci.focusArgs[pos].length > 0) {
			options[name] = mci.focusArgs[pos];
		}
		return false;
	}

	switch(mci.code) {
		//	Text Label (Text View)
		case 'TL' : 
			setOption(0,	'textStyle');
			setOption(1,	'justify');
			setWidth(2);

			view = new TextView(options);
			break;

		//	Edit Text
		case 'ET' :
			setWidth(0);

			setOption(1, 		'textStyle');
			setFocusOption(0,	'focusTextStyle');

			view = new EditTextView(options);
			break;

		//	Masked Edit Text
		case 'ME' :
			setOption(0,		'textStyle');
			setFocusOption(0,	'focusTextStyle');

			view = new MaskEditTextView(options);
			break;

		//	Multi Line Edit Text
		case 'MT' : 
			//	:TODO: apply params
			view = new MultiLineEditTextView(options);
			break;

		//	Pre-defined Label (Text View)
		case 'PL' : 
			if(mci.args.length > 0) {
				options.text = this.getPredefinedViewLabel(mci.args[0]);
				if(options.text) {
					setOption(1, 'textStyle');
					setOption(2, 'justify');
					setWidth(3);

					view = new TextView(options);
				}
			}
			break;

		//	Button
		case 'BT' : 
			if(mci.args.length > 0) {
				options.dimens = { width : parseInt(mci.args[0], 10) };
			}

			setOption(1, 'textStyle');
			setOption(2, 'justify');

			setFocusOption(0, 'focusTextStyle');

			view = new ButtonView(options);
			break;

		//	Vertial Menu
		case 'VM' :
			setOption(0,		'itemSpacing');
			setOption(1, 		'justify');
			setOption(2, 		'textStyle');
			
			setFocusOption(0,	'focusTextStyle');

			view = new VerticalMenuView(options);
			break;

		case 'SM' :
			setOption(0,		'textStyle');
			setOption(1, 		'justify');

			setFocusOption(0,	'focusTextStyle');
			
			view = new SpinnerMenuView(options);
			break;

		case 'TM' :
			if(mci.args.length > 0) {
				var styleSG1 = { fg : parseInt(mci.args[0], 10) };
				if(mci.args.length > 1) {
					styleSG1.bg = parseInt(mci.args[1], 10);
				}
				options.styleSG1 = ansi.getSGRFromGraphicRendition(styleSG1, true);
			}

			setFocusOption(0,	'focusTextStyle');

			view = new ToggleMenuView(options);
			break;

		default :
			options.text = this.getPredefinedViewLabel(mci.code);
			if(options.text) {
				view = new TextView(options);
			}
			break;
	}

	return view;
};