EventBrite Selective Sync

// Load the library - https://github.com/ryanjarvinen/eventbrite.npm
var Eventbrite = require('eventbrite');

// Load creationix's couch-client
var CouchClient = require('couch-client');

// Initialize the Eventbrite API client - http://www.eventbrite.com/api/key/
var eb_client = Eventbrite('RWJPIH4B6FVFAIAK6Y');

// Initialize your couchbase client:
var db = CouchClient('http://stickbyatlas.iriscouch.com/experiment/');

// some local counters:
var total_events = 0;
var pub_events = 0;
var online_events = 0;
var pages = 0;
// 100 per page is Eventbrite's max
var max_per_page = 100;



// LIST_USER_EVENTS CODE HERE

var approved_users = 
	{
		"milan@titanfile.com" : "Titanfile",
		"ari@torusoft.com" : "Torusoft"
	}

var user_array = Object.keys(approved_users);
var approved_events = [];



function getEvents(){
	for(var i = 0; i < user_array.length ; i++){
		addUserEvents(i, user_array, function(err, data){
			console.log(data.length);
			processEvents(data);
		});	
	}
}


function addUserEvents(index, records, callback){
		eb_client.user_list_events( {'user': records[index]}, function(err, data){
	

			for(var j = 0; j < data.events.length ; j++){
				approved_events[approved_events.length] = data.events[j];
				if( ( (index+1) == records.length) && ((j+1) == data.events.length) )  //this conditional ensures that processEvents is only called on the last iteration
					callback(0,approved_events);
			}

		});

}


function processEvents(data){  //data is the approved_events array

	console.log("Length of approved_events is: " + data.length);

	var index=0;

	checkForEvent(index, data, function callback(err, data){

		if((index + 1) != data.length){
			index++;
			checkForEvent(index, data, callback);
		}
		else{
			console.log("finished!");
			//function call goes here
		}
	});
}

function checkForEvent(index, records, callback){
		console.log("checkForEvent index: " + index);
		var e = records[index].event;
		db.get(e.id.toString(), function(err, theData){
			//console.log(e.iteration + ", " + err + ", " + theData);
			if(err){
				console.log(e.id.toString() + " wasn't found in the database. creating this record now.");
				//console.log(err);
				db.save({_id: e.id.toString(), 'eb_event': e, 'loc': [ e.venue.longitude, e.venue.latitude ], "geometry": {"type":"Point","coordinates": [ e.venue.longitude, e.venue.latitude ]}}, function(err, result) {
                    if (err) throw err;
                    callback(0, records);
                });						
			}
			else{
				console.log(e.id + ' already exists! check date modified to see if it needs to be updated!');
				if(e.modified != theData.eb_event.modified){  // date modified doesn't match. update is needed.
					db.save({_id: e.id.toString(), 'eb_event': e, 'loc': [ e.venue.longitude, e.venue.latitude ], "geometry": {"type":"Point","coordinates": [ e.venue.longitude, e.venue.latitude ]}}, function(err, result) {
	                    if (err) throw err;
	                    console.log("updated " + e.id);
	                    callback(0, records);
	                });
	            }
	            else //they're the same, so no update needed
					callback(0, records);
			}
			//console.log(theData);
		});
}