var light = {};

//LIGHT
light.preview_state = false; //light is on/off for preview viewing
light.color = [255, 255, 255]; //default color
light.current = [0, 0, 0]; //last sent
light.icon = {};
light.swatches = [
	{
		rgb : [0, 0, 0],
		name : 'off'
	},
	{
		rgb : [255, 255, 255],
		name : 'white (LED)'
	},
	{
		rgb : chroma.kelvin(2500).rgb(),
		name : '2500 kelvin'
	},
	{
		rgb : chroma.kelvin(3200).rgb(),
		name : '3200 kelvin'
	},
	{
		rgb : chroma.kelvin(5600).rgb(),
		name : '5600 kelvin'
	},
	{
		rgb : chroma.kelvin(6500).rgb(),
		name : '6500 kelvin'
	},
	{
		rgb : light.color,
		set : true,
		default : true
	}
];

/*
	Light Source		Kelvin	R G B Values Color
	Candle 				1900 	255, 147, 41
	40W Tungsten 		2600 	255, 197, 143
	100W Tungsten 		2850 	255, 214, 170
	Halogen 			3200 	255, 241, 224
	Carbon Arc 			5200 	255, 250, 244
	High Noon Sun 		5400 	255, 255, 251
	Direct Sunlight	 	6000 	255, 255, 255
	Overcast Sky 		7000 	201, 226, 255
	Clear Blue Sky 		20000 	64, 156, 255
	Warm Fluorescent 			255, 244, 229
	Standard Fluorescent 		244, 255, 250
	Cool White Fluorescent 		212, 235, 255
	Full Spectrum Fluorescent 	255, 244, 242
	Grow Light Fluorescent 		255, 239, 247
	Black Light Fluorescent 	167, 0, 255
	Mercury Vapor 				216, 247, 255
	Sodium Vapor 				255, 209, 178
	Metal Halide 				242, 252, 255
	High Pressure Sodium 		255, 183, 76
*/

light.queue = {};
light.lock = false;
light.init = function () {
	'use strict';

	//create dynamic style for displaying light across screens
	light.icon = document.createElement('style');
	light.icon.innerHTML = 'span.mcopy-light{background-color: #000;}';
	document.body.appendChild(light.icon);

	light.colorPickers();
	light.swatch.init();
	light.listen();

	light.display(light.current);

	$('#preview').on('change', function () {
		light.preview_state = $(this).prop('checked');
		if (light.preview_state) {
			light.display(light.color);
			light.set(light.color);
		} else {
			light.display([0,0,0]);
			light.set([0,0,0]);
		}
	});
};
light.colorPickers = function () {
	'use strict';
	$('#colors-tabs').w2tabs({
		name: 'colors',
		active: 'kelvin',
		tabs: [
			{ id: 'kelvin', caption: 'Kelvin'},
			//{ id: 'cmy', caption: 'CMY'},
			{ id: 'rgb', caption: 'RGB' }
		],
		onClick: function (event) {
			$('.colors-page').hide();
			$('#' + event.target + '-page').show();
			if (event.target === 'rgb') {
				light.rgb.page();
			} else if (event.target) {
				light.cmy.page();
			}
		}
	});
	light.rgb.init();
	light.kelvin.init();
	//light.cmy.init();
};
light.set = function (rgb, callback) { //rgb = [0,0,0]
	'use strict';
	var obj;

	if (light.lock) {
		//potential for logging overlapping commands
		return false;
	}

	obj = {
		rgb,
		id : uuid.v4()
	};
	ipcRenderer.sendSync('light', obj);

	if (typeof callback !== 'undefined') {
		obj.callback = callback;
	}
	light.queue[obj.id] = obj;
	light.current = rgb;
	light.lock = true;
};
light.end = function (id) {
	'use strict';
	if (typeof light.queue[id] !== 'undefined') {
		if (typeof light.queue[id].callback !== 'undefined') {
			light.queue[id].callback();
		}
		delete light.queue[id];
		light.lock = false;
	}
}
light.listen = function () {
	'use strict';
	ipcRenderer.on('light', function (event, arg) {
		light.end(arg.id);
		return event.returnValue = true;
	});
};
light.preview = function (rgb, name) { 
	'use strict';
	var rgbStr;
	rgb = light.rgb.floor(rgb);
	rgbStr = 'rgb(' + rgb.join(',') + ')';
	light.color = rgb;
	if (typeof name === 'undefined') {
		name = rgbStr;
	}
	$('#light-swatches .swatch.set').css('background', rgbStr)
		.attr('color', rgb.join(','))
		.prop('title', name);

	if (light.preview_state) {
		light.display(rgb);
		light.set(rgb);
	}
};
light.display = function (rgb) { //display light active state
	'use strict';
	var str,
		i;
	rgb = light.rgb.floor(rgb);
	for (i = 0; i < 3; i++) {
		$('#light-status form input').eq(i).val(rgb[i]);
	}
	str = 'rgb(' + rgb.join(',') + ')';
	$('#color').css('background-color', str);
	light.icon = document.styleSheets[document.styleSheets.length - 1];
	light.icon.deleteRule(0);
	light.icon.insertRule('span.mcopy-light{background-color: ' + str + ';}', 0)
};

//KELVIN GUI
light.kelvin = {};
light.kelvin.steps = 348;
light.kelvin.min = light.kelvin.steps * 4;
light.kelvin.max = 20000;
light.kelvin.moving = false;
light.kelvin.init = function () {
	'use strict';
	$('#kelvin').on('change', light.kelvin.change);
	$('#kelvin').on('keypup', function (e) {
		var code = e.keyCode || e.which;
		if (code === 13) {
			light.kelvin.change();
		}
	});
	$('#kelvin-slider').on('mousemove', function (event) {
		if (light.kelvin.moving) {
			light.kelvin.click(this, event);
		}
	});
	$('#kelvin-slider').on('mousedown', function (event) {
		light.kelvin.moving = true;
		light.kelvin.click(this, event);
	});
	$(document).on('mouseup', function () {
		light.kelvin.moving = false;
	});
	light.kelvin.scale();
	light.kelvin.set(5600); //default value
};
light.kelvin.change = function () {
	'use strict';
	var val = $('#kelvin').val(),
		rgb = chroma.kelvin(val).rgb();
	light.kelvin.preview(rgb);
	light.kelvin.pos(val);
	light.preview(rgb, val + ' kelvin');
};
light.kelvin.preview = function (rgb_float) {
	'use strict';
	var elem = $('#kelvin-preview'),
		rgb = light.rgb.floor(rgb_float),
		rgb_str = 'rgb(' + rgb.join(', ') + ')';
	elem.css('background', rgb_str);
	elem.text(rgb_str);
};
light.kelvin.scale = function () {
	'use strict';
	var i,
		min = light.kelvin.min,
		max = light.kelvin.max,
		steps = light.kelvin.steps,
		rgb,
		elem,
		elemStr = '<span style="background: rgb(XXXX);"></span>'
	for (i = 0; i < steps; i++) {
		rgb = chroma.kelvin((i * ((max - min) / steps)) + min).rgb();
		rgb = light.rgb.floor(rgb).join(',');
		elem = $(elemStr.replace('XXXX', rgb));
		$('#kelvin-scale').append(elem);
	}
};
light.kelvin.pos = function (kelvin) {
	'use strict';
	var min = light.kelvin.min,
		max = light.kelvin.max,
		steps = light.kelvin.steps,
		start = -1,
		pos = Math.round((kelvin - min) / ( (max - min) / steps)) + start;
	if (pos < start) {
		pos = start;
	}
	if (pos > steps) {
		pos = steps;
	}
	$('#kelvin-pos').css('left', pos + 'px');
};
light.kelvin.set = function (kelvin) {
	'use strict';
	$('#kelvin').val(kelvin);
	light.kelvin.change();
};
light.kelvin.click = function (t, e) {
	'use strict';
	var parentOffset = $(t).parent().offset(),
   		relX = e.pageX - parentOffset.left - 31, //?
   		min = light.kelvin.min,
   		max = light.kelvin.max,
   		steps = light.kelvin.steps,
   		kelvin = Math.round((relX * ((max - min) / steps)) + min);
   	light.kelvin.set(kelvin);
};

//CMY GUI
light.cmy = {};
light.cmy.init = function () {
	'use strict';
	$('.dial-wrapper input').on('input', function () {
		light.cmy.change(this);
	});
	$('.dial-wrapper input').on('change',  function () {
		light.cmy.change(this);
	});
};

light.cmy.page = function () {
	'use strict';
	light.cmy.fromRgb(light.color);
};

light.cmy.change = function (t) {
	'use strict';
	var id = $(t).parent().attr('id').split('-')[1],
		val = $(t).val(),
		cmy = [];

	cmy[0] = $('#dial-c input').val();
	cmy[1] = $('#dial-m input').val();
	cmy[2] = $('#dial-y input').val();
	cmy[3] = $('#dial-k input').val();

	light.cmy.setDial(id, val);
	light.cmy.preview(cmy);
};

light.cmy.fromRgb = function (rgb) {
	'use strict';
	var cmy = chroma.rgb(rgb).cmyk();
	light.cmy.set(cmy);
};

light.cmy.set = function (cmy) {
	'use strict';
	light.cmy.setDial('c', cmy[0]);
	light.cmy.setDial('m', cmy[1]);
	light.cmy.setDial('y', cmy[2]);
	light.cmy.setDial('k', cmy[3]);

	light.cmy.preview(cmy);
};

light.cmy.setDial = function (dial, val) {
	'use strict';
	var elem = $('#dial-' + dial),
		angle = Math.floor(360 * val),
		container1 = 0,
		container2 = 0;
		elem.find('.dial-end').hide();
	if (angle === 0) {
		container1 = 180;
		container2 = 180;
	} else if (angle < 180) {
		container1 = 180;
		container2 = 180 - angle;
	} else if (angle === 180) {
		container1 = 180;
		container2 = 0;
	} else if (angle > 180 && angle < 360) {
		container1 = 180 - (angle - 180);
		container2 = 0;
	} else if (angle === 360) {
		//
	}

	if (angle !== 0) {
		elem.find('.dial-end').show();
	}

	elem.find('.dial-container1 .dial-wedge').css('transform', 'rotateZ(' + container1 + 'deg)');
	elem.find('.dial-container2 .dial-wedge').css('transform', 'rotateZ(' + container2 + 'deg)');
	elem.find('.dial-end').css('transform', 'rotateZ(' + (360 - angle) + 'deg)');
	elem.find('input').val(val);
};

light.cmy.preview = function (cmy) {
	'use strict';
	var elem = $('#cmy-preview'),
		rgb = light.rgb.floor(chroma.cmyk(cmy).rgb()),
		rgb_str = 'rgb(' + rgb.join(', ') + ')';
	elem.css('background', rgb_str);
	elem.text(rgb_str);
};

//RGB GUI
light.rgb = {};
light.rgb.elem;
light.rgb.lock = true;
light.rgb.init = function () {
	'use strict';
	light.rgb.elem = jsColorPicker('#rgb', {
		customBG: '#222',
		readOnly: true,
		size: 3,
		appendTo : document.getElementById('rgb-page'),
		// patch: false,
		init: function(elm, colors) { // colors is a different instance (not connected to colorPicker)
			elm.style.backgroundColor = elm.value;
			elm.style.color = colors.rgbaMixCustom.luminance > 0.22 ? '#222' : '#ddd';
		},
		convertCallback: light.rgb.change
	});
};
light.rgb.page = function () {
	'use strict';
	if (light.rgb.lock) {
		$('#rgb').focus();
		light.rgb.lock = false;
	}
	light.rgb.set(light.color);
};
light.rgb.change = function (colors, type) {
	'use strict';
	var a = colors.RND.rgb,
		rgb = [a.r, a.g, a.b];
	if (!light.rgb.lock) {
		light.preview(rgb);
	}
};
light.rgb.floor = function (rgb) {
	'use strict';
	return [
		Math.floor(rgb[0]),
		Math.floor(rgb[1]),
		Math.floor(rgb[2])
	];
};
light.rgb.set = function (rgb) {
	'use strict';
	var hex = chroma.rgb(rgb).hex();
	light.rgb.elem.current.startRender();
	light.rgb.elem.current.setColor(hex);
	light.rgb.elem.current.stopRender();
};

//SWATCH GUI
light.swatch = {};
light.swatch.init = function () {
	'use strict';
	var number = 12,
		add,
		elem,
		rgb,
		i,
		x;
	for (i = 0; i < light.swatches.length; i++) {
		light.swatches[i].rgb = light.rgb.floor(light.swatches[i].rgb);
		rgb = 'rgb(' + light.swatches[i].rgb.join(',') + ')';
		elem = $('<div class="swatch"></div>');
		elem.css('background', rgb);
		elem.attr('color', light.swatches[i].rgb.join(','));
		if (typeof light.swatches[i].name !== 'undefined') {
			elem.prop('title', light.swatches[i].name);
		} else {
			elem.prop('title', rgb);
		}
		if (light.swatches[i].default) {
			elem.addClass('default');
		}
		if (light.swatches[i].set) {
			elem.addClass('set');
		}
		$('#new-swatch').before(elem);
	}
	$('#new-swatch').on('click', light.swatch.add);
	$(document.body).on('click', '#light-swatches .swatch', function () {
		var rgb = $(this).attr('color');
		if (typeof color !== 'undefined') {
			rgb = rgb.split(',');
			$('#light-swatches .swatch').removeClass('default set');
			$(this).addClass('default set');
			if (w2ui['colors'].active === 'rgb') {
				light.rgb.set(light.color);
			} else if (w2ui['colors'].active === 'cmy') {
				light.cmy.fromRgb(light.color);
			}
			light.preview(rgb);
		}
	});
	$(document.body).on('dblclick', '.swatch', function () {
		
	});
};
light.swatch.add = function () {
	'use strict';
	var swatch = $('<div class="swatch default set"></div>');
	$('#light-swatches .swatch').removeClass('default set');
	$('#new-swatch').before(swatch);
	light.preview(light.color);
};

module.exports = light;