//Wrap it up in an anonymous function
(function (thisObj) {
	// paragraph style object
	// these will be passed directly to the paragraphStyles.add() method
	// so only use property names that exist in the ID DOM
	var parstyles = [
		{
			name: "p",
			appliedFont: "Museo Slab\t300",
		},
		{
			name: "h1",
		},
		{
			name: "h2",
		},
		{
			name: "h3",
		},
		{
			name: "h4",
		},
		{
			name: "h5",
		},
		{
			name: "h6",
		},
		{
			name: "quote",
		},
	];

	// same here for the character styles
	var charstyles = [
		{
			name: "em",
		},
		{
			name: "bold",
		},
		{
			name: "link",
		},
	];

	var doc = app.activeDocument; // current front most document
	var prevp = null; // the get the based on working
	// loop the parsytles
	for (var i = 0; i < parstyles.length; i++) {
		// check if there is already a style with that name
		var pexists = doc.paragraphStyles.itemByName(parstyles[i].name);
		if (pexists !== null) {
			// there was one set it back to null and skip this one
			pexists = null;
			continue; //<-- This skips
		}
		// there was no style with this name. So create it
		var p = doc.paragraphStyles.add(parstyles[i]);
		if (prevp !== null) {
			// if we already have a previous style set the basedOn property
			p.basedOn = prevp;
		}
		prevp = p; // <-- set current to previous
	}
	// same here for the character styles
	// but we don't set the basedOn feature
	for (var j = 0; j < charstyles.length; j++) {
		var cexists = doc.characterStyles.itemByName(charstyles[j].name);
		if (cexists !== null) {
			cexists = null;
			continue;
		}
		var c = doc.characterStyles.add(charstyles[j]);
	}
})(this);

/**
 *  With styles you can controll your text
 */
// a function
// this script has to be saved somewhere
// or this wont work

main();
function main() {
	// make a doc
	var pw = 210;
	var ph = 500;
	var doc = app.documents.add({
		documentPreferences: {
			pageWidth: pw,
			pageHeight: ph,
		},
	});

	// build a style with nested grep styles
	var code = build_code_paragraphStyle(doc);
	// get the page
	var page = doc.pages[0];
	// make a frame
	var tf = page.textFrames.add({ geometricBounds: [10, 10, ph - 10, pw - 10] });
	// load the content of the script

	var scriptfile = File($.fileName);
	alert(scriptfile);
	var content;
	if (scriptfile != false) {
		scriptfile.open("r");
		content = scriptfile.read();
	} else {
		alert("Bah!");
	}

	// add the content to the frame
	tf.contents = content;
	scriptfile.close(); // always close files after reading
	// apply the style
	tf.paragraphs.everyItem().appliedParagraphStyle = code;
}

// build a lot of styles
function build_code_paragraphStyle(d) {
	var charStyles = new Array();
	var keywords = d.characterStyles.add({
		name: "keywords",
		fillColor: d.swatches.item(5),
	});
	var comments = d.characterStyles.add({
		name: "comments",
		fillColor: d.swatches.item(3),
		fillTint: 70,
	});
	var operators = d.characterStyles.add({
		name: "operators",
		fillColor: d.swatches.item(7),
	});
	var separators = d.characterStyles.add({
		name: "separators",
		fillColor: d.swatches.item(8),
	});
	var numbers = d.characterStyles.add({
		name: "numbers",
		fillColor: d.swatches.item(9),
	});
	var comment = d.characterStyles.add({
		name: "comment",
		fillColor: d.swatches.item(9),
	});
	var string = d.characterStyles.add({
		name: "strings",
		fillColor: d.swatches.item(5),
	});

	var code = d.paragraphStyles.add({
		name: "code",
		appliedFont: "Andale Mono",
		pointSize: 10,
	});
	//change language (only in the paragraphStyle) to get the right "" for the code
	code.appliedLanguage = app.languagesWithVendors.item("English: USA");
	// do some nested grep styles
	var grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = keywords;
	grp.grepExpression =
		"abstract|boolean|break|byte|case|catch|char\ |class|const|continue|debugger|default|delete|do\    |double|else|enum|export|extends|false|final|finally|float|for|function|goto|if|implements|import|in\ |instanceof|int\ |interface|long|native|new|n    ull|package|private|protected|public|return|short|static|super|switch|synchronized|this|throw|throws|transient|true|try|typeof|var|void|volatile|wh ile|with";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = operators;
	grp.grepExpression = "is|new|sizeof|typeof";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = operators;
	grp.grepExpression = "[-~\\[\\]!$%&*+/:<=>?^|]+";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = separators;
	grp.grepExpression = "[(){},;\\s]+";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = numbers;
	grp.grepExpression = "\\<[0-9]+(\\.[0-9]+)?([eE][-+]?[0-9]+)?";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = comments;
	grp.grepExpression = "/\\*+[^*]*\\*+([^/*][^*]*\\*+)*/";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = comment;
	grp.grepExpression = "//.*";

	grp = code.nestedGrepStyles.add();
	grp.appliedCharacterStyle = string;
	grp.grepExpression = '".*?"';

	return code;
}