#!/usr/bin/env node

var version = '0.5.2';
var fs = require('fs');
var optimist = require('optimist');
var ect = require('ect');

var argv = optimist
	.usage('ECT template compiler ' + version + '\n\nUsage: ect source [destination]')
	.describe('o', 'Open tag')
	.default('o', '<%')
	.alias('o', 'open')
	.describe('c', 'Closing tag')
	.default('c', '%>')
	.alias('c', 'close')
	.describe('h', 'Print help (this message) and exit')
	.alias('h', 'help')
	.argv;

var renderer = ect({ open : argv.o, close : argv.c });

var compile = function (content) {
	try {
		var compiled = renderer.compile(content);
		if (argv['_'][1]) {
			fs.writeFileSync(argv['_'][1], '(' + compiled.toString() + ');');
		} else {
			console.log('(' + compiled.toString() + ');');
		}
	} catch (err) {
		console.error(err.message);
		process.exit();
	}
};

var read = function () {
	var content = '';
	var file;
	var stats;

	try {
		stats = fs.statSync(argv['_'][0]);
	} catch (err) {
		console.error(err.message);
		process.exit();
	}
	if (stats.isDirectory()) {
		// Directory
		// TODO Recursive traversal
	} else {
		// File
		try {
			file = fs.readFileSync(argv['_'][0]);
			content = file.toString();
		} catch (err) {
		}
		compile(content);
	}
};

if (argv.help || !argv['_'].length) {
	optimist.showHelp();
} else {
	read();
}