'use strict';

var factory = require('./factory');

var template = {
	buildOrder: ['css','js'],
	
	configCreate:    null,
	configFill:      factory.builder.configCreate.nop(),
	assemblerCreate: factory.builder.assemblerCreate.readFile(),
	assemblerFill:   factory.builder.configCreate.nop(),
	
	assets: {
		js: {
			configCreate: null,
			configFill: null,
			assemblerCreate: null,
			assemblerFill: null,
		},
		css: {
			configCreate: null,
			configFill: null,
			assemblerCreate: null,
			assemblerFill: null,
		},
	},
};

function checkConfig(config,callback) {
	if (!config) {
		callback(new Error('no config'));
	}
	// TODO: add more
	callback();
}

function fillDefaults(config,callback) {
	if (config.buildOrder === undefined) {
		config.buildOrder = Object.keys(config.assets);
	}
	if (config.configFill === undefined) {
		config.configFill = template.configFill;
	}
	if (config.assemblerCreate === undefined) {
		config.assemblerCreate = template.assemblerCreate;
	}
	if (config.assemblerFill === undefined) {
		config.assemblerFill = template.assemblerFill;
	}
	callback();
}

module.exports = {
	template: template,
	checkConfig: checkConfig,
	fillDefaults: fillDefaults,
};