/* 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 HorizontalMenuView		= require('./horizontal_menu_view.js').HorizontalMenuView;
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 StatusBarView			= require('./status_bar_view.js').StatusBarView;
var MultiLineEditTextView	= require('./multi_line_edit_text_view.js').MultiLineEditTextView;
var getMessageAreaByName	= require('./message_area.js').getMessageAreaByName;

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');
var moment					= require('moment');

exports.MCIViewFactory		= MCIViewFactory;

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

MCIViewFactory.prototype.getPredefinedViewLabel = function(code) {

	var self = this;
	
	function getMessageAreaDescription() {
		var area = getMessageAreaByName(self.client.user.properties.message_area_name);
		return area ? area.desc : '';
	}

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

			UN	: this.client.user.username,
			UI	: this.client.user.userId.toString(),
			UG	: _.values(this.client.user.groups).join(', '),
			UR	: this.client.user.properties.real_name,
			LO	: this.client.user.properties.location,
			UA	: this.client.user.getAge().toString(),
			UB	: moment(this.client.user.properties.birthdate).format(this.client.currentTheme.helpers.getDateFormat()),
			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,
			MS	: moment(this.client.user.properties.account_created).format(this.client.currentTheme.helpers.getDateFormat()),

			MA	: getMessageAreaDescription(),


			SH	: this.client.term.termHeight.toString(),
			SW	: this.client.term.termWidth.toString(),

			ND	: this.client.node.toString(),

			//	:TODO: change to CD for 'Current Date'
			DT	: moment().format(this.client.currentTheme.helpers.getDateFormat()),
			CT	: moment().format(this.client.currentTheme.helpers.getTimeFormat()),


			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];
	} catch(e) {
		this.client.log.warn( { code : code, exception : e.message }, 'Exception caught attempting to construct predefined label');
	}
};

/*
MCIViewFactory.getUserViewClass = function(code) {
	return {
		TL	: TextView,
		ET	: EditTextView,
		ME	: MaskEditTextView,
		MT	: MultiLineEditTextView,
		PL	: TextView,
		BT	: ButtonView,
		VM	: VerticalMenuView,
		HM	: HorizontalMenuView,
		SM	: SpinnerMenuView,
		TM	: ToggleMenuView,
	}[code];
};
*/

MCIViewFactory.UserViewCodes = [
	'TL', 'ET', 'ME', 'MT', 'PL', 'BT', 'VM', 'HM', 'SM', 'TM'
];

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] },
	};

	//	:TODO: These should use setPropertyValue()!
	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;
	}

	//
	//	Note: Keep this in sync with UserViewCodes above!
	//
	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;

		//	Horizontal Menu
		case 'HM' : 
			setOption(0,		'itemSpacing');
			setOption(1,		'textStyle');

			setFocusOption(0,	'focusTextStyle');

			view = new HorizontalMenuView(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(_.isString(options.text)) {
				setWidth(0);

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

				view = new TextView(options);
			} else {
				//	:TODO: log this
			}
			break;
	}

	return view;
};