'use strict';

var express  = require('express');
var async    = require('async');
var path     = require('path');
var assets   = require('../lib/node-ff-assets');

function buildAssets(server,callbackDone) {
	var singleResult = 'false' !== process.env.DEV_ASSETS_SINGLE_RESULT;
	var assetsConfig = require('./example-assets.json'); 
	assets.build({
		assets: {
			js: {
				configCreate: assets.factory.builder.configCreate.fromJSON(assetsConfig,'js'),
				configFill: function (config, callback) {
					async.series([
						assets.factory.lib.async.pushLinkSources(config,  '/static/js/',             'www_static/js/'),
						assets.factory.lib.async.pushLinkSources(config,  '/static/js/controller/',  'www_static/js/controller/'),
					],callback);
				},
			},
			css: {
				configCreate: assets.factory.builder.configCreate.fromJSON(assetsConfig,'css'),
				configFill: function (config, callback) {
					async.series([
						assets.factory.lib.async.pushLinkSources(config,  '/static/css/',            'www_static/css/'),
					],callback);
				},
			},
		},
		assemblerCreate: assets.factory.builder.assemblerCreate.readFileRegex(),
		assemblerFill: function (assembler, callback) {
			var serverResultKey = 'ff_assets_'+assembler.config.assetType;
			assembler.on ('log',    assets.factory.assembler.event.log.console(assembler.config.assetType));
			assembler.on ('result', assets.factory.assembler.event.result.objectSet(server,serverResultKey));
			assembler.config.linkTargetSingleResult = singleResult;
			callback();
		},
	},callbackDone);
}

function renderTemplatePath(viewPath) {
	return function (req, res) {
		res.locals.query = req.query;
		var qi = req.url.indexOf('?');
		if (qi === -1) {
			qi = req.url.length;
		}
		res.render(viewPath + req.url.substring(req.route.path.length-1, qi));
	};
}

function renderPage(server) {
	return function (req, res) {
		res.render('index', {
			pageTitle:      'node-ff-assets example',
			pageKeywords:   'node,ff,assets,example,ui',
			pageCssFiles:   server.get('ff_assets_css'),
			pageJsFiles:    server.get('ff_assets_js'),
		});
	};
}

function sendRedirect() {
	return function (req, res) {
		res.redirect('/example-ui');
	};
}


var server = express();
buildAssets(server,function(err) {
	if (err) {
		throw err;
	}
	console.info('Server assets done.');
	
	server.set('view engine', 'ejs');
	server.set('views',                                   path.join(__dirname,'www_views'));
	server.use('/static',                  express.static(path.join(__dirname,'www_static')));
	server.use('/static/module/bootstrap', express.static(path.join(__dirname,'node_modules/bootstrap/dist')));
	server.use('/static/module/flot',      express.static(path.join(__dirname,'node_modules/flot')));
	
	server.get('/',                               sendRedirect());
	server.get('/example-ui/thtml/*',             renderTemplatePath('thtml/'));
	server.get('/example-ui',                     renderPage(server));
	server.get('/example-ui/*',                   renderPage(server)); // must be last; for HTML5 history
	console.info('Server config done.');
	
	server.listen(8080);
	console.info('Server started on port 8080');
});

module.exports = {
	version: 'example'
};