/**
 * Составляет embed из выбранной директории 
 */

if (process.argv.length <= 2) {
	console.log("Usage: " + __filename + " path/to/directory");
	process.exit(-1);
}
var fs = require("fs");
var path = require("path");

var workingDir = process.argv[2]
if (fs.lstatSync(workingDir).isDirectory() == false)
{
	console.log("Error: " + __filename + " is not directory");
	process.exit(-1);
}

var images = fs.readdirSync(workingDir).filter(isImage).map(getBaseName);
var classes = images.map(getClassName);

var embeds = [];
for (var i = 0; i < images.length; i++)
{
	embeds.push(generateEmbed(images[i], classes[i]));
}
var embedsConcat = embeds.join("\n");

console.log(embedsConcat);
//console.log("images" + images.toString());
//console.log("classes " + classes.toString());



var template = fs.readFileSync("classTemplate.txt", {encoding:"UTF-8"});
//template = template.replace("{{embeds}}", embedTemplate);




//console.log(template);

function generateEmbed(fileName, className)
{
	var embedTemplate = "[Embed(source = \"{{name}}\")] public static const {{className}}:Class;";
	embedTemplate = embedTemplate.replace("{{name}}", fileName).replace("{{className}}", className);
	return embedTemplate;
}

function getClassName(str)
{
	var extRemoved = str.split(".")[0];
	var upper = toUpperCaseEachWord(extRemoved, "_");
	console.log(upper);
	return upper;
}

function getBaseName(str)
{
	return path.basename(str);
}

function isImage(str)
{
	var ext = extension(str);
	return ext == "jpg" || ext == "png"
}

function extension(str)
{
	var arr = str.split(".");
	return arr[arr.length-1];
}

function toUpperCaseEachWord( str, delim ) {
	delim = delim ? delim : ' ';
	return str.split( delim ).map( function(v) { return toUpperCaseFirstChar(v) } ).join("");
}

function toUpperCaseFirstChar( str ) {
	return str.substr( 0, 1 ).toUpperCase() + str.substr( 1 );
}