#!/usr/bin/env node

// builtin
var fs = require('fs');
var path = require('path');

// local
var npmcss = require('..');

var optimist = require('optimist')
    .usage('Usage: npm-css [entry file] {OPTIONS}')
    .wrap(80)
    .option('outfile', {
        alias: 'o',
        desc: 'Write the bundled css to this file\n' +
              'If unspecified the output will go to stdout'
    })

var argv = optimist.argv;

var files = argv._;

if (!files || files.length === 0) {
    console.error('Error: at least one entry file must be specified\n');
    optimist.showHelp();
    return;
}

var css = '';

files.forEach(function(file) {
    file = path.resolve(process.cwd(), file);
    css += npmcss(file);
});

if (argv.outfile) {
    fs.writeFileSync(argv.outfile, css, 'utf8');
    return;
}

process.stdout.write(css);