rapnc/commands/serve.js

Node client for RAP 1.0

var express = require('express');
var http = require('http');
var path = require('path');
var fs = require('fs');
var config = require('../config.json');
var program = require('commander');

var helper = require('../helpers');
var logger = helper.logger;

var rapMode = config.mode != 'online' ? 'offline' : 'online';

function init(app) {
    app.set('port', process.env.PORT || 3000);
    app.set('views', __dirname + '/views');
    app.set('view engine', 'jade');
    app.use(express.favicon());
    app.use(express.logger('dev'));
    app.use(express.bodyParser());
    app.use(express.methodOverride());

    // routes
    app.use(app.router);
    app.use(express.static(path.join(__dirname, 'public')));

    // add error handler
    if ('development' == app.get('env')) {
        app.use(express.errorHandler());
    }
}

function initDB() {
    var Sequelize = require('sequelize'),
        conn = config.dbinfo;
    if (!conn) {
        throw '[ERROR] ' + dbinfo + ' has no config in config.json.';
    }

    var sequelize = new Sequelize(conn.db, conn.user, conn.pass, {
        host: conn.host,
        port: conn.port,
        define: {
            charset: conn.charset
        }
    });

    global.sequelize = sequelize;
};

function startServer(app, options) {
    logger.log('')
    if (options.mode == 'online') {
        var conn = config.dbinfo;
        logger.ok('Connecting DB: ' + conn.host + ':' + conn.port + '/' + conn.db, 'serve')
    }

    var port = options.port || app.get('port');
    http.createServer(app).listen(port, function(){
        logger.ok('RAPNC server listening on port ' + port + ' in "' + options.mode.toUpperCase() + '" mode.', 'serve');
    });
}

function initServer(options) {
    global.RAP_MODE = options.mode;
    var app = express();
    var server = http.createServer(app);
    init(app);
    require('../routes').init(app);
    if (options.mode == 'online') {
        initDB();
    }
    startServer(app, options);
}

function handle(argv) {
    var options = {};
    program
        .usage('serve [options]')
        .option('--online',  '[online  mode] connect to DB, read RAP data in DB.')
        .option('--offline', '[offline mode] read local downloaded RAP files')
        .option('--port [port]', 'rapnc server port, default: 3000', 3000)
        .parse(argv);

    if (argv.indexOf('-h') != -1 || argv.indexOf('--help') != -1) {
        program.help();
        process.exit(0);
    }
    if (program.online) {
        options.mode = 'online';
    }
    if (program.offline) {
        options.mode = 'offline';
    }
    if (program.port) {
        options.port = program.port;
    }
    if (!program.online && !program.offline) {
        options.mode = rapMode;
    }
    initServer(options);
}

exports.handle = handle;