// Convert any file to binary string.
// By Tomas Sinkunas. www.rendertom.com
// Select some files and they will be converted to binary string. The output files will be saved to same location as original files, but will have .txt extension.


(function (thisObj) {
	var options = {
		oneFile: true,
		addRes: true,
	};

	scriptBuildUI(thisObj);

	function scriptBuildUI(thisObj) {
		var typeOfWindow = getTypeOfWindow();
		var win = (thisObj instanceof Panel) ? thisObj : new Window(typeOfWindow, "Export To Binary", undefined, {
			resizeable: true
		});
		win.alignChildren = ["fill", "fill"];
		var checkOneFile = win.add("checkbox", undefined, "Write everything to one file");
		checkOneFile.value = options.oneFile;

		var checkAddRes = win.add("checkbox", undefined, "Add \"Create File\" option");
		checkAddRes.value = options.addRes;

		var btnConvert = win.add("button", undefined, "Export To Binary");
		btnConvert.onClick = function () {
			options.oneFile = checkOneFile.value;
			options.addRes = checkAddRes.value;
			main();
		};

		win.onResizing = win.onResize = function () {
			this.layout.resize();
		};

		if (win instanceof Window) {
			win.center();
			win.show();
		} else {
			win.layout.layout(true);
			win.layout.resize();
		}
	}

	function main() {
		try {

			var sourceFiles = File.openDialog("Select files to with to export to binary", undefined, {
				multiSelect: true
			});
			if (!sourceFiles) return;

			var binaryStringsArray = [],
				resourceStringsArray = [],
				finalString = "",
				binaryString = "",
				resourceString = "",
				displayName = "",
				fileName = "",
				extension = "",
				variableName = "",
				i, il;

			if (options.oneFile === true) {
				for (i = 0, il = sourceFiles.length; i < il; i++) {
					displayName = File(sourceFiles[i]).displayName;
					fileName = displayName.split(".")[0];
					extension = displayName.split(".")[1];

					variableName = toVariableName(fileName);
					binaryString = "var " + variableName + "_bin = " + convertToBinary(sourceFiles[i]);
					resourceString = "var " + variableName + " = createResourceFile (\"" + fileName + "." + extension + "\", " + variableName + "_bin, userDataFolder);";

					binaryStringsArray.push(binaryString);
					resourceStringsArray.push(resourceString);
				}

				finalString = buildString(binaryStringsArray, resourceStringsArray);

				saveFile(File.decode(sourceFiles[0].path) + "/ALL.txt", finalString);

			} else {
				for (i = 0, il = sourceFiles.length; i < il; i++) {
					binaryString = convertToBinary(sourceFiles[i]);
					saveFile(sourceFiles[i].fsName + ".txt", binaryString);
				}
			}

			alert("Done");

		} catch (e) {
			alert(e.toString() + "\nLine: " + e.line.toString());
		}

	}

	function buildString(binaryStringsArray, resourceStringsArray) {
		var finalString = binaryStringsArray.join("\n");

		if (options.addRes === true) {
			finalString += "\n\n\nvar userDataFolder = \"~/Desktop/\";\n";
			finalString += resourceStringsArray.join("\n") + "\n\n";

			finalString += "function createResourceFile(filename, binaryString, resourceFolder) {\n" +
				"\tvar fileObject = new File(resourceFolder + \"/\" + filename);\n" +
				"\tif (!File(fileObject).exists) {\n" +
				"\t\tfileObject.encoding = \"BINARY\";\n" +
				"\t\tfileObject.open(\"w\");\n" +
				"\t\tfileObject.write(binaryString);\n" +
				"\t\tfileObject.close();\n" +
				"\t}\n" +
				"\treturn fileObject;\n" +
				"}\n";
		}

		return finalString;
	}

	function toVariableName(string) {
		var varName = string;

		// remove non A-Z from beginning
		varName = varName.replace(/[^A-Za-z]*/, "");
		if (varName.length === 0) {
			varName = "undef_" + string;
		}

		// capitalise first letters of the word;
		varName = varName.replace(/\w\S*/g, function (txt) {
			return txt.charAt(0).toUpperCase() + txt.substr(1).toLowerCase();
		});

		// remove white spaces;
		varName = varName.replace(/\s+/g, "");

		// lowercase first letter;
		varName = varName.charAt(0).toLowerCase() + varName.substr(1);

		return varName;
	}



	function convertToBinary(fileObj, appendix) {
		var fileContent = readFileContent(fileObj, "BINARY");
		var binaryString = fileContent.toSource();

		binaryString = binaryString.replace(/^\(new String\(/, "");
		binaryString = binaryString.replace(/\)\)$/, ";");

		return binaryString;
	}

	function getTypeOfWindow() {
		var isAfterEffects = function () {
			return BridgeTalk.appName.toLowerCase().match("aftereffects");
		};

		return isAfterEffects() ? "palette" : "dialog";
	}

	function saveFile(filePath, fileContents, encoding) {
		var fileObject = new File(filePath);
		encoding = encoding || "UTF-8";

		fileObject.open("W");
		fileObject.encoding = encoding;
		fileObject.write(fileContents);
		fileObject.close();
	}

	function readFileContent(fileObj, encoding) {
		encoding = encoding || "UTF-8";
		fileObj.encoding = encoding;
		fileObj.open('r');
		var fileContent = fileObj.read();
		fileObj.close();
		return fileContent;
	}
})(this);