/*************************************************************************
* ADOBE CONFIDENTIAL
* ___________________
*
* Copyright 2014 Adobe Inc.
* All Rights Reserved.
*
* NOTICE: Adobe permits you to use, modify, and distribute this file in
* accordance with the terms of the Adobe license agreement accompanying
* it. If you have received this file from a source other than Adobe,
* then your use, modification, or distribution of it requires the prior
* written permission of Adobe. 
**************************************************************************/

function onLoaded() {
	var csInterface = new CSInterface();
	var appName = csInterface.hostEnvironment.appName;
	document.getElementById("dragthing").style.backgroundColor = "lightblue";
	var caps = csInterface.getHostCapabilities();
	if(appName != "FLPR"){
		loadJSX();
	}

	var appNames = ["PPRO"];

	for (var i = 0; i < appNames.length; i++) {
		var name = appNames[i];
		if (appName.indexOf(name) >= 0) {
			var btn = document.getElementById("btn_" + name);
			if (btn){
				btn.disabled = false;
			}
		}
	}

	updateThemeWithAppSkinInfo(csInterface.hostEnvironment.appSkinInfo);

	// Update the color of the panel when the theme color of the product changed.
	csInterface.addEventListener(CSInterface.THEME_COLOR_CHANGED_EVENT, onAppThemeColorChanged);
	// Listen for event sent in response to rendering a sequence.
	csInterface.addEventListener("com.adobe.csxs.events.PProPanelRenderEvent", function(event){
		alert(event.data);
	});

	csInterface.addEventListener("com.adobe.csxs.events.WorkspaceChanged", function(event){
		alert("New workspace selected: " + event.data);
	});


	// register for messages
	VulcanInterface.addMessageListener(
	    VulcanMessage.TYPE_PREFIX + "com.DVA.message.sendtext",
	    function(message) {
	        var str = VulcanInterface.getPayload(message);
	        // You just received the text of every Text layer in the current AE comp.
	    }
	);
	csInterface.evalScript('$._PPP_.getVersionInfo()', myVersionInfoFunction);	
	csInterface.evalScript('$._PPP_.getActiveSequenceName()', myCallBackFunction);		
	csInterface.evalScript('$._PPP_.getUserName()', myUserNameFunction);  
	csInterface.evalScript('$._PPP_.getSequenceProxySetting()', myGetProxyFunction);
	csInterface.evalScript('$._PPP_.keepPanelLoaded()');
	csInterface.evalScript('$._PPP_.disableImportWorkspaceWithProjects()');
}

function dragHandler(event){
	var csInterface = new CSInterface();
	var extPath 	= csInterface.getSystemPath(SystemPath.EXTENSION);
	var OSVersion	= csInterface.getOSInformation();
	
	if (extPath != null){
		extPath = extPath + '/payloads/test.jpg';
		if (OSVersion.indexOf("Windows") >=0){
			var sep = '\\\\';
			extPath = extPath.replace(/\//g, sep);
		}
		event.dataTransfer.setData("com.adobe.cep.dnd.file.0", extPath);
	//	event.dataTransfer.setData("com.adobe.cep.dnd.file.N", path);  N = (items to import - 1)
	}
}

function myCallBackFunction (data) {
	// Updates seq_display with whatever ExtendScript function returns.
	var boilerPlate		= "Active Sequence: ";
	var seq_display		= document.getElementById("active_seq");
	seq_display.innerHTML	= boilerPlate + data;
}

function myUserNameFunction (data) {
	// Updates username with whatever ExtendScript function returns.
	var user_name			= document.getElementById("username");
	user_name.innerHTML		= data;
}

function myGetProxyFunction (data) {
	// Updates proxy_display based on current sequence's value.
	var boilerPlate		   = "Proxies enabled for sequence: ";
	var proxy_display	   = document.getElementById("proxies_on");

	if (proxy_display !== null) {
		proxy_display.innerHTML = boilerPlate + data;
	}
}

function mySetProxyFunction (data) {
	var csInterface = new CSInterface();
	csInterface.evalScript('$._PPP_.getActiveSequenceName()', myCallBackFunction);
	csInterface.evalScript('$._PPP_.getSequenceProxySetting()', myGetProxyFunction);
}
	 
function myVersionInfoFunction (data) {
	var boilerPlate		= "PPro Version: ";
	var v_string		= document.getElementById("version_string");
	v_string.innerHTML	= boilerPlate + data;
}

/**
 * Update the theme with the AppSkinInfo retrieved from the host product.
 */

function updateThemeWithAppSkinInfo(appSkinInfo) {

	//Update the background color of the panel

	var panelBackgroundColor = appSkinInfo.panelBackgroundColor.color;
	document.body.bgColor = toHex(panelBackgroundColor);

	var styleId 			= "ppstyle";
	var gradientBg			= "background-image: -webkit-linear-gradient(top, " + toHex(panelBackgroundColor, 40) + " , " + toHex(panelBackgroundColor, 10) + ");";
	var gradientDisabledBg	= "background-image: -webkit-linear-gradient(top, " + toHex(panelBackgroundColor, 15) + " , " + toHex(panelBackgroundColor, 5) + ");";
	var boxShadow			= "-webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4), 0 1px 1px rgba(0, 0, 0, 0.2);";
	var boxActiveShadow		= "-webkit-box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.6);";
		 
	var isPanelThemeLight	= panelBackgroundColor.red > 50; // choose your own sweet spot
		 
		var fontColor, disabledFontColor;
		var borderColor;
		var inputBackgroundColor;
		var gradientHighlightBg;

		if(isPanelThemeLight) {
			fontColor				= "#000000;";
			disabledFontColor		= "color:" + toHex(panelBackgroundColor, -70) + ";";
			borderColor				= "border-color: " + toHex(panelBackgroundColor, -90) + ";";
			inputBackgroundColor	= toHex(panelBackgroundColor, 54) + ";";
			gradientHighlightBg		= "background-image: -webkit-linear-gradient(top, " + toHex(panelBackgroundColor, -40) + " , " + toHex(panelBackgroundColor,-50) + ");";
		} else {
			fontColor				= "#ffffff;";
			disabledFontColor		= "color:" + toHex(panelBackgroundColor, 100) + ";";
			borderColor				= "border-color: " + toHex(panelBackgroundColor, -45) + ";";
			inputBackgroundColor	= toHex(panelBackgroundColor, -20) + ";";
			gradientHighlightBg		= "background-image: -webkit-linear-gradient(top, " + toHex(panelBackgroundColor, -20) + " , " + toHex(panelBackgroundColor, -30) + ");";
		}
	
		//Update the default text style with pp values

		addRule(styleId, ".default", "font-size:" + appSkinInfo.baseFontSize + "px" + "; color:" + fontColor + "; background-color:" + toHex(panelBackgroundColor) + ";");
		addRule(styleId, "button, select, input[type=text], input[type=button], input[type=submit]", borderColor);	   
		addRule(styleId, "p", "color:" + fontColor + ";");	  
		addRule(styleId, "button", "font-family: " + appSkinInfo.baseFontFamily + ", Arial, sans-serif;");	  
		addRule(styleId, "button", "color:" + fontColor + ";");	   
		addRule(styleId, "button", "font-size:" + (1.2 * appSkinInfo.baseFontSize) + "px;");	
		addRule(styleId, "button, select, input[type=button], input[type=submit]", gradientBg);	
		addRule(styleId, "button, select, input[type=button], input[type=submit]", boxShadow);
		addRule(styleId, "button:enabled:active, input[type=button]:enabled:active, input[type=submit]:enabled:active", gradientHighlightBg);
		addRule(styleId, "button:enabled:active, input[type=button]:enabled:active, input[type=submit]:enabled:active", boxActiveShadow);
		addRule(styleId, "[disabled]", gradientDisabledBg);
		addRule(styleId, "[disabled]", disabledFontColor);
		addRule(styleId, "input[type=text]", "padding:1px 3px;");
		addRule(styleId, "input[type=text]", "background-color: " + inputBackgroundColor + ";");
		addRule(styleId, "input[type=text]:focus", "background-color: #ffffff;");
		addRule(styleId, "input[type=text]:focus", "color: #000000;");
}

function addRule(stylesheetId, selector, rule) {
	var stylesheet = document.getElementById(stylesheetId);
	
	if (stylesheet) {
		stylesheet = stylesheet.sheet;
		if( stylesheet.addRule ){
				stylesheet.addRule(selector, rule);
		} else if( stylesheet.insertRule ){
			stylesheet.insertRule(selector + ' { ' + rule + ' }', stylesheet.cssRules.length);
		}
	}
}

function reverseColor(color, delta) {
	return toHex({red:Math.abs(255-color.red), green:Math.abs(255-color.green), blue:Math.abs(255-color.blue)}, delta);
}

/**
 * Convert the Color object to string in hexadecimal format;
 */

function toHex(color, delta) {
	function computeValue(value, delta) {
		var computedValue = !isNaN(delta) ? value + delta : value;
		if (computedValue < 0) {
			computedValue = 0;
		} else if (computedValue > 255) {
			computedValue = 255;
		}

		computedValue = Math.round(computedValue).toString(16);
		return computedValue.length == 1 ? "0" + computedValue : computedValue;
	}

	var hex = "";
	if (color) {
		hex = computeValue(color.red, delta) + computeValue(color.green, delta) + computeValue(color.blue, delta);
	}
	return "#" + hex;
}

function onAppThemeColorChanged(event) {
	// Should get a latest HostEnvironment object from application.
	var skinInfo = JSON.parse(window.__adobe_cep__.getHostEnvironment()).appSkinInfo;
	// Gets the style information such as color info from the skinInfo, 
	// and redraw all UI controls of your extension according to the style info.
	updateThemeWithAppSkinInfo(skinInfo);
} 

/**
* Load JSX file into the scripting context of the product. All the jsx files in 
* folder [ExtensionRoot]/jsx will be loaded. 
*/
function loadJSX() {
	var csInterface = new CSInterface();
	var extensionRoot = csInterface.getSystemPath(SystemPath.EXTENSION) + "/dom_app/src/";
	csInterface.evalScript('$._ext.evalFiles("' + extensionRoot + '")');
}

function evalScript(script, callback) {
	new CSInterface().evalScript(script, callback);
}

function onClickButton(ppid) {
	var extScript = "$._ext_" + ppid + ".run()";
	evalScript(extScript);
}
