/*! terminal.js v2.0 | (c) 2014 Erik Österberg | https://github.com/eosterberg/terminaljs */

var Terminal = (function () {
	// PROMPT_TYPE
	var PROMPT_INPUT = 1, PROMPT_PASSWORD = 2, PROMPT_CONFIRM = 3

	var fireCursorInterval = function (inputField, terminalObj) {
		var cursor = terminalObj._cursor
		setTimeout(function () {
			if (inputField.parentElement && terminalObj._shouldBlinkCursor) {
				cursor.style.visibility = cursor.style.visibility === 'visible' ? 'hidden' : 'visible'
				fireCursorInterval(inputField, terminalObj)
			} else {
				cursor.style.visibility = 'visible'
			}
		}, 500)
	}

	var firstPrompt = true;
	promptInput = function (terminalObj, message, PROMPT_TYPE, callback) {
		var shouldDisplayInput = (PROMPT_TYPE === PROMPT_INPUT)
		var inputField = document.createElement('input')

		inputField.style.position = 'absolute'
		inputField.style.zIndex = '-100'
		inputField.style.outline = 'none'
		inputField.style.border = 'none'
		inputField.style.opacity = '0'
		inputField.style.fontSize = '0.2em'

		terminalObj._inputLine.textContent = ''
		terminalObj._input.style.display = 'block'
		terminalObj.html.appendChild(inputField)
		fireCursorInterval(inputField, terminalObj)

		if (message.length) terminalObj.msg(PROMPT_TYPE === PROMPT_CONFIRM ? message + ' (y/n)' : message)

		inputField.onblur = function () {
			terminalObj._cursor.style.display = 'none'
		}

		inputField.onfocus = function () {
			inputField.value = terminalObj._inputLine.textContent
			terminalObj._cursor.style.display = 'inline'
		}

		terminalObj.html.onclick = function () {
			inputField.focus()
		}

		inputField.onkeydown = function (e) {
			if (e.which === 37 || e.which === 39 || e.which === 38 || e.which === 40 || e.which === 9) {
				e.preventDefault()
			} else if (shouldDisplayInput && e.which !== 13) {
				setTimeout(function () {
					terminalObj._inputLine.textContent = inputField.value
				}, 1)
			}
		}
		inputField.onkeyup = function (e) {
			if (PROMPT_TYPE === PROMPT_CONFIRM || e.which === 13) {
				terminalObj._input.style.display = 'none'
				var inputValue = inputField.value
				if (shouldDisplayInput) terminalObj._print(message+inputValue,"wterm_input_div")
				terminalObj.html.removeChild(inputField)
				if (typeof(callback) === 'function') {
					if (PROMPT_TYPE === PROMPT_CONFIRM) {
						callback(inputValue.toUpperCase()[0] === 'Y' ? true : false)
					} else callback(inputValue)
				}
			}
		}
		if (firstPrompt) {
			firstPrompt = false
			setTimeout(function () { inputField.focus()	}, 50)
		} else {
			inputField.focus()
		}
	}

	var terminalBeep

	var TerminalConstructor = function (id) {
		if (!terminalBeep) {
			terminalBeep = document.createElement('audio')
			var source = '<source src="http://www.erikosterberg.com/terminaljs/beep.'
			terminalBeep.innerHTML = source + 'mp3" type="audio/mpeg">' + source + 'ogg" type="audio/ogg">'
			terminalBeep.volume = 0.05
		}

		this.html = document.createElement('div')
		this.html.className = 'Terminal'
		if (typeof(id) === 'string') { this.html.id = id }

		this._innerWindow = document.createElement('div')
		this._output = document.createElement('p')
		this._inputLine = document.createElement('span') //the span element where the users input is put
		this._cursor = document.createElement('span')
		this._input = document.createElement('p') //the full element administering the user input, including cursor
		this._input.className = "wterm_input_p"
		this._cursor.className = "wterm_cursor"
		//this._output.className = "wterm_output_p"
		this._input.appendChild(document.createElement('span'));
		this._shouldBlinkCursor = true

		this.beep = function () {
			terminalBeep.load()
			terminalBeep.play()
		}
		this.msg = function (message) {
			this._input.firstChild.textContent = message
		}
		this._print = function(msg,cls)
		{
			var newLine = document.createElement('div')
			newLine.className = cls
			newLine.textContent = msg
			this._output.appendChild(newLine)
		}
		this.print = function (message) {
			this._print(message,"wterm_output_div")
		}

		this.input = function (message, callback) {
			promptInput(this, message, PROMPT_INPUT, callback)
		}

		this.password = function (message, callback) {
			promptInput(this, message, PROMPT_PASSWORD, callback)
		}

		this.confirm = function (message, callback) {
			promptInput(this, message, PROMPT_CONFIRM, callback)
		}

		this.clear = function () {
			this._output.innerHTML = ''
		}

		this.sleep = function (milliseconds, callback) {
			setTimeout(callback, milliseconds)
		}

		this.setTextSize = function (size) {
			this._output.style.fontSize = size
			this._input.style.fontSize = size
		}

		this.setTextColor = function (col) {
			this.html.style.color = col
			this._cursor.style.background = col
		}

		this.setBackgroundColor = function (col) {
			this.html.style.background = col
		}

		this.setWidth = function (width) {
			this.html.style.width = width
		}

		this.setHeight = function (height) {
			this.html.style.height = height
		}

		this.blinkingCursor = function (bool) {
			bool = bool.toString().toUpperCase()
			this._shouldBlinkCursor = (bool === 'TRUE' || bool === '1' || bool === 'YES')
		}

		this._input.appendChild(this._inputLine)
		this._input.appendChild(this._cursor)
		this._innerWindow.appendChild(this._output)
		this._innerWindow.appendChild(this._input)
		this.html.appendChild(this._innerWindow)

		this.setBackgroundColor('black')
		this.setTextColor('white')
		this.setTextSize('1em')
		this.setWidth('100%')
		this.setHeight('100%')

		this.html.style.fontFamily = 'Monaco, Courier'
		this.html.style.margin = '0'
		this._innerWindow.style.padding = '10px'
		this._input.style.margin = '0'
		this._output.style.margin = '0'
		this._cursor.style.background = '#00cc00'
		this._cursor.innerHTML = 'C' //put something in the cursor..
		this._cursor.style.display = 'none' //then hide it
		this._input.style.display = 'none'
	}

	return TerminalConstructor
}());
var wtermobj;

var wterm_config = {
	name: 'wterm_layout',
    panels: [
        { 
        	type: 'main', 
        	style: 'padding: 0px;', 
        	content: '<div id="wterm" style="padding:0"></div>' 
        }
    ],
	onRefresh:function(event)
	{
		if($("#wterm_input") )
		{
			wtermobj = new Terminal();
			wtermobj.setTextSize(11);
			var nest_callback = function(data)
			{
					if(data.length>0)
					{
						//send to server
						var webtty = new EventSource('/wterm?cmd='+data);
						webtty.onmessage = function (e) {
						   wtermobj.print(e.data);
						   var par = $("#wterm");
						   par.animate({
							   scrollTop: par.get(0).scrollHeight
						       }, 0);
						};
						webtty.onerror = function(e)
						{
							// finish the command
							webtty.close();
							wtermobj.input("antd> ",nest_callback);
						}
					}
					else
					{
						wtermobj.input("antd> ",nest_callback);
					}
			};
			$("#wterm").html(wtermobj.html);
			$("#wterm").parent().css("overflow","hidden");
			$("#wterm").parent().css("background-color","black");
			wtermobj.input("antd> ",nest_callback);
		}
	}
}
$().w2layout(wterm_config);