var Q = require('q');

function step1() {
    var deferred = Q.defer();
    console.log('step 1 takes a second');
    setTimeout(function() {
        console.log('step 1 done!');
        deferred.resolve('YAY');
    }, 1000);
    console.log('step 1 submitted');

    return deferred.promise;
}

function step2(result) {
    var deferred = Q.defer();
    console.log('step 1 said: ' + result);
    console.log('step 2 takes a second');
    setTimeout(function() {
        console.log('step 2 done!');
        deferred.resolve('WOW');
    }, 1000);
    console.log('step 2 submitted');
    return deferred.promise;
}

function step3(result) {
    var deferred = Q.defer();
    console.log('step 2 said: ' + result);
    console.log('step 3 takes a second');
    setTimeout(function() {
        deferred.reject('STEP 3 FAILURE!!!!!');
    }, 1000);
    console.log('step 3 submitted');
    return deferred.promise;
}

function step4(result) {
    var deferred = Q.defer();
    console.log('step 3 said: ' + result);
    console.log('step 4 takes a second');
    setTimeout(function() {
        console.log('step 4 done!');
        deferred.resolve('WTF');
    }, 1000);
    console.log('step 4 submitted');
    return deferred.promise;
}


step1()
    .then(function() { return step2('PUT IN MY OWN DAMN ARG'); })
    .then(step3)
    .then(step4)
    .fail(function(err) {
        console.log('fail handler... ' + err);
    });