/* Support Timeline Embed Generator web form (becomes storyjs-embed-generator.js) */  
if(typeof generator_embed_path == 'undefined' || typeof generator_embed_path == 'undefined') {
	// REPLACE WITH YOUR BASEPATH IF YOU WANT OTHERWISE IT WILL TRY AND FIGURE IT OUT
	// TODO Issue #618 better splitting
	var generator_embed_path = getScriptPath("storyjs-embed-generator.js").split("js/")[0];
	if (generator_embed_path.match("http")) {
		generator_embed_path = generator_embed_path;
	} else if (generator_embed_path == "/") {
		generator_embed_path = "index.html";
	} else {
		generator_embed_path = generator_embed_path + "index.html";
	} 
}
function getScriptPath(scriptname) {
	var scriptTags = document.getElementsByTagName('script'),
		script_path = "";
	for(var i = 0; i < scriptTags.length; i++) {
		if (scriptTags[i].src.match(scriptname)) {
			script_path = scriptTags[i].src;
		}
	}
	return script_path.split('?')[0].split('/').slice(0, -1).join('/') + '/';
}


/* EXTRA
================================================== */
function getUrlVars(string) {
	var vars = [],
		hash,
		hashes,
		str = string.toString();
			
	if (str.match('&#038;')) { 
		str = str.replace("&#038;", "&");
	} else if (str.match('&#38;')) {
		str = str.replace("&#38;", "&");
	} else if (str.match('&amp;')) {
		str = str.replace("&amp;", "&");
	}
	if (str.match('#')) { 
		str = str.split('#')[0];
	}
	hashes = str.slice(str.indexOf('?') + 1).split('&');
		
	for(var i = 0; i < hashes.length; i++) {
		hash = hashes[i].split('=');
		vars.push(hash[0]);
		vars[hash[0]] = hash[1];
	}
	
	return vars;
};

function getLinkAndIframe() {
	
	var theobj				= {},
		e_source			= document.getElementById('embed-source-url'),
		e_width				= document.getElementById('embed-width'),
		e_height			= document.getElementById('embed-height'),
		e_maptype			= document.getElementById('embed-maptype'),
		e_language			= document.getElementById('embed-language'),
		e_embed				= document.getElementById('embed_code'),
		e_font				= document.getElementById('embed-font'),
		e_wordpress			= document.getElementById('embed-wordpressplugin'),
		e_startatend		= document.getElementById('embed-startatend'),
		e_hashbookmark		= document.getElementById('embed-hashbookmark'),
		e_startzoomadjust	= document.getElementById('embed-startzoomadjust'),
		e_startatslide		= document.getElementById('embed-startatslide'),
		e_debug				= document.getElementById('embed-debug'),
		e_googlemapkey		= document.getElementById('embed-googlemapkey'),
		start_at_end		= false,
		hash_bookmark		= false,
		is_debug			= false,
		iframe,
		link,
		vars,
		wp,
		source_key;
	
	/* SOURCE KEY
	================================================== */
	if (e_source.value.match("docs.google.com")) {
		source_key		= getUrlVars(e_source.value)["key"];
	} else {
		if (e_source.value == "") {
			source_key	= "0Agl_Dv6iEbDadHdKcHlHcTB5bzhvbF9iTWwyMmJHdkE"
		} else {
			source_key	= e_source.value;
		}
	}
	
	/* START AT END
	================================================== */
	if (e_startatend.checked) {
		start_at_end = true;
	}
	
	/* HASH BOOKMARK
	================================================== */
	if (e_hashbookmark.checked) {
		hash_bookmark = true;
	}
	
	/* DEBUG
	================================================== */
	if (e_debug.checked) {
		is_debug = true;
	}
	
	/* WORDPRESS
	================================================== */
	wp		= "[timeline ";
	if (e_width.value > 0) {
		wp	+= "width='" + e_width.value + "' "; 
	}
	if (e_height.value > 0) {
		wp	+= "height='" + e_width.value + "' "; 
	}
		
	wp		+= "font='" + e_font.value + "' "; 
	wp		+= "maptype='" + e_maptype.value + "' ";
	wp		+= "lang='" + e_language.value + "' ";
	wp		+= "src='" + e_source.value + "' ";
	if (start_at_end) {
		wp	+= "start_at_end='" + start_at_end + "' ";
	}
	if (hash_bookmark) {
		wp	+= "hash_bookmark='" + hash_bookmark + "' ";
	}
	if (is_debug) {
		wp	+= "debug='" + is_debug + "' ";
	}
	
	if (e_googlemapkey.value != "") {
		wp	+= "gmap_key='" + e_googlemapkey.value + "' ";
	}
	
	if (parseInt(e_startatslide.value, 10) > 0) {
		wp	+= "start_at_slide='" + parseInt(e_startatslide.value, 10) + "' ";
	}
	if (parseInt(e_startzoomadjust.value, 10) > 0) {
		wp	+= "start_zoom_adjust='" + parseInt(e_startzoomadjust.value, 10) + "' ";
	}
	
	wp		+= "]";
	
	theobj.wordpress = wp;
	
	/* IFRAME AND LINK
	================================================== */
	vars		=  generator_embed_path + "?source=" + source_key;
	vars		+= "&font=" + e_font.value; 
	vars		+= "&maptype=" + e_maptype.value;
	vars		+= "&lang=" + e_language.value;
	if (start_at_end) {
		vars	+= "&start_at_end=" + start_at_end;
	}
	if (hash_bookmark) {
		vars	+= "&hash_bookmark=" + hash_bookmark;
	}
	if (is_debug) {
		vars	+= "&debug=" + is_debug;
	}
	
	if (parseInt(e_startatslide.value, 10) > 0) {
		vars	+= "&start_at_slide=" + parseInt(e_startatslide.value, 10); 
	}
	
	if (parseInt(e_startzoomadjust.value, 10) > 0) {
		vars	+= "&start_zoom_adjust=" + parseInt(e_startzoomadjust.value, 10);
	}
	
	if (e_googlemapkey.value != "") {
		vars	+= "&gmap_key=" + e_googlemapkey.value;
	}
	
	if (e_width.value > 0) {
		vars	+= "&width=" + e_width.value; 
	}
	if (e_height.value > 0) {
		vars	+= "&height=" + e_height.value; 
	}
	
	iframe		= "<iframe src='" + vars + "'";
	
	if (e_width.value > 0 || e_width.value.match("%")) {
		iframe	+= " width='" + e_width.value + "'";
	}
	if (e_height.value > 0 || e_height.value.match("%")) {
		iframe	+= " height='" + e_height.value + "'";
	}
	iframe		+= " frameborder='0'></iframe>";
	
	theobj.iframe	= iframe;
	theobj.link		= vars;
	
	if (e_wordpress.checked) {
		theobj.copybox = wp;
	} else {
		theobj.copybox = iframe;
	}
	
	return theobj;
};

/* EMBED GENERATOR
================================================== */
function updateEmbedCode(element, options) {
	
	var e_embed		= document.getElementById('embed_code'),
		el			= getLinkAndIframe();
	
	e_embed.value	= el.copybox;
	jQuery("#preview-embed-link").attr('href', el.link);
	jQuery("#preview-embed-iframe").html(el.iframe);
	jQuery("#preview-embed").css("display","block");
	
}