main.js

#!/usr/bin/env node

var Spooky = require('spooky'),
	prompt = require('prompt'),
	applescript = require("applescript"),
	moment = require('moment'),
	argv = require('optimist')
	.usage('Usage: $0 [options]')
	.options('u',{
		alias:'username',
		describe: 'library username or barcode',
		demand:true
	})
	.options('p', {
		alias:'pin',
		describe:'library pin'
	})
	.options('library', {
		'default':'brooklyn',
		describe:'BiblioCommons key, http://[key].bibliocommons.com/'
	})
	.options('title', {
		'default':'Brooklyn Public Library',
		describe:'title of the Reminders list'
	})
	.options('install',{
		'default':false,
		'boolean':true,
		describe:'install this script to check due dates once per day'
	})
    .argv;

var username= argv.username,
	region = argv.library + ".bibliocommons.com",
	listName = argv.title,
	pin;
prompt.override = argv
prompt.message = ""
prompt.delimiter = ""


prompt.start()
prompt.get([{
	name:'pin',
	description:'Enter your library PIN:'.magenta,
	hidden:true,
	required:true	
}], function(err,result) {
	pin = result.pin.toString();

	if (argv.install === true) {
		// install the launchctl plist, then immediately run it 
		// (this should trigger any necessary Reminders.app permissions prompt)
		var mu = require('mu2'),
			fs = require('fs'),
			exec = require('child_process').exec,
			reverseDomain = "us.bigboy.duedate",
			plistPath = process.env.HOME+"/Library/LaunchAgents/"+reverseDomain+".plist",
			launchctlcommand = 'launchctl unload '+plistPath+' && launchctl load '+plistPath+' && launchctl start '+reverseDomain,
			plist = fs.createWriteStream(plistPath);
		mu.root = __dirname
		mu.compileAndRender('launchctl.xml', {label:reverseDomain,path:__filename,username:username,pin:pin})
			.on('end', function() {
				exec(launchctlcommand, function(err,response) {

				})
			})
			.pipe(plist)
	} else {
		// otherwise run it normally
		run_spooky();	
	}

})

function run_spooky() {
	var spooky = new Spooky({
	        child: {
	            transport: 'http'
	        },
	        casper: {
	            logLevel: 'debug',
	            verbose: true
	        }
	    }, function (err) {
	        if (err) {
	            e = new Error('Failed to initialize SpookyJS');
	            e.details = err;
	            throw e;
	        }
	        // begin with login page
	        spooky.start('https://'+region+'/user/login');
	        spooky.then([
			{
	        	username:username,
	        	pin:pin
	        },
	        function () {
	        	// fill out form, pin must be string
	        	this.fill('form.loginForm', {
	        		"name":username,
	        		"user_pin":pin
	        	}, true)
	        }]);
	        spooky.then([
		        {
		        	region:region
		        },
	        	function() {
	        		// go to checked out items page
		        	this.open('http://'+region+'/checkedout')
	        	}
	        ])
	        spooky.then(function() {
	            this.emit('items', this.evaluate(function () {
	            	var items = []
	            	var books = document.querySelectorAll('.listItem')
	            	for (var i=0;i<books.length;i++) {
	            		var book = books[i],
	            			title = book.querySelector('.title').innerText,
	            			due = book.querySelector('.coming_due').innerText
	            		items.push({
	            			title:title,
	            			due:due
	            		})
	            	}
	                return items;
	            }));
	        })
	        spooky.run();
	    });

	spooky.on('error', function (e, stack) {
	    console.error(e);
	    if (stack) {
	        console.log(stack);
	    }
	});

	spooky.on('items', function (items) {
		add_items_to_remindersapp(items)
	});

	// debugging:
	// spooky.on('log', function (log) {
	//     if (log.space === 'remote') {
	//         console.log(log.message.replace(/ \- .*/, ''));
	//     }
	// });
}

// date must look like "Saturday, November 9, 2013 at 12:00:00 AM", 
function add_items_to_remindersapp(items) {
	items.forEach(function(item) {
		var due_date = moment(item.due.trim()).hours(9), // 9AM seems like a reasonable hour
			remind_me_date = due_date.subtract('days', 2), 
			formatted_title = "'" + item.title + "' is due",
			dateFormat = "dddd, MMMM D, YYYY [at] h:mm:ss A";
		applescript.execFile( __dirname + '/reminder.applescript', 
			[
				formatted_title, 
				due_date.format(dateFormat),
				remind_me_date.format(dateFormat),
				listName
			], 
			function(err, rtn) {
			  if (err) return
			  console.log(rtn)			  	
			}
		);
	})
}