config.js

require('total.js');
var Fs = require('fs');

function existsSync(filename, file) {
	try {
		var val = Fs.statSync(filename);
		return val ? (file ? val.isFile() : true) : false;
	} catch (e) {
		return false;
	}
}

// seznam uživatelských proměnných definovaných v config souborech
// ukládají se pouze tyto klíče z F.config
F.$user_config = {
	common: [],			// config
	release: [],		// config-release
	debug: [],			// config-debug
	test: []			// config-test
};

// přidání configu a uložení
F.$add_user_config = function(name, value, mode) {

	mode = mode || 'common';
	F.config[name] = value;

	// smazat pokud už je přidáno v některém ze souborů config
	Object.keys(F.$user_config).forEach(function(key){ 
		F.$user_config[mode] = F.$user_config[mode].remove((c) => c === name);
	});

	F.$user_config[mode].push(name);
	F.$save_user_config();
};

// uložení configu
F.$save_user_config = function() {

	Object.keys(F.$user_config).forEach(function(mode){
		var user_config = '';
		F.$user_config[mode].forEach((name) => { user_config += line(name, F.config[name], typeof(F.config[name])); });
		user_config && (Fs.writeFile(U.combine('/', 'config' + (mode === 'common' ? '' : '-' + mode)), user_config, 'utf8', NOOP));
	});

	function line (name, value ,type) {
		if (type === 'object') {
			value = JSON.stringify(value);
			type = 'JSON';
		}
		return name.padRight(30) + ' ' + (type !== 'string' ? '(' + type + ')' : '').padRight(9) + ' : ' + value + '\n';
	};	
};

// čtení config souborů
// dalo by se použít tady https://github.com/totaljs/framework/blob/master/index.js#L8100
// a tady https://github.com/totaljs/framework/blob/master/index.js#L8103
// a for loop by tam být nemusel https://github.com/totaljs/framework/blob/master/index.js#L8127
F.$read_user_config = function(filename, encoding, mode) {
	var conf = {};

	if (!existsSync(filename) || !Fs.lstatSync(filename).isFile())
		return {};
	
	conf = Fs.readFileSync(filename).toString(encoding).parseConfig();		

	Object.keys(conf).forEach(function(name){
		var value = conf[name];
		if (!value)
			return;

		F.$user_config[mode].push(name);

		switch (name) {
			case 'default-cors-maxage':
			case 'default-request-length':
			case 'default-websocket-request-length':
			case 'default-request-timeout':
			case 'default-interval-clear-cache':
			case 'default-interval-clear-resources':
			case 'default-interval-precompile-views':
			case 'default-interval-uptodate':
			case 'default-interval-websocket-ping':
			case 'default-maximum-file-descriptors':
			case 'default-interval-clear-dnscache':
				conf[name] = U.parseInt(value);
				break;
			case 'default-image-consumption':
			case 'default-image-quality':
				conf[name] = U.parseInt(typeof(value) === 'number' ? value : value.replace(/\%|\s/g, ''));
				break;

			case 'static-accepts-custom':
				accepts = value.replace(REG_ACCEPTCLEANER, '').split(',');
				break;

			case 'default-root':
				if (value)
					conf[name] = U.path(value);
				break;

			case 'static-accepts':
				conf[name] = {};
				tmp = value.replace(REG_ACCEPTCLEANER, '').split(',');
				for (var j = 0; j < tmp.length; j++)
					conf[name][tmp[j]] = true;
				break;

			case 'mail.smtp':
			case 'mail.smtp.options':
			case 'mail.address.from':
			case 'mail.address.copy':
			case 'mail.address.bcc':
			case 'mail.address.reply':

				if (name === 'mail.address.bcc')
					tmp = 'mail-address-copy';
				else
					tmp = name.replace(/\./g, '-');

				OBSOLETE(name, 'is renamed to "' + tmp + '"');
				conf[tmp] = value;
				break;

			case 'allow-gzip':
			case 'allow-websocket':
			case 'allow-performance':
			case 'allow-compile-html':
			case 'allow-compile-style':
			case 'allow-compile-script':
			case 'allow-defer':
			case 'allow-debug':
			case 'disable-strict-server-certificate-validation':
			case 'disable-clear-temporary-directory':
			case 'trace':
			case 'allow-cache-snapshot':
				conf[name] = value.toLowerCase() === 'true' || value === '1' || value === 'on';
				break;

			case 'version':
				conf[name] = value;
				break;
		}
	});

	return conf;
};


// TEST

var conf = F.$read_user_config(U.combine('/', 'config'), 'utf8', 'common');

console.log('CONF', conf);

U.extend(F.config, conf, true);

F.$add_user_config('number', 123, 'common'); // ukládá automaticky
console.log('CONF2', F.$user_config);

//F.$save_user_config();