function echo(string) { console.log(string); }

process.on('uncaughtException', function (err) {
	echo(err.stack);
	echo('uncaught Exception: ' + err);
});

var KEYS = require('keychain'),
    $ = require('node-jquery'),
    S3 = require('amazon-s3').S3;

var storage = function() {
    return new S3(KEYS.AWS_KEY, KEYS.AWS_PASS);
};

function BuzzPage(in_list) {
    this.list = in_list;

    this.steps = [
        this.htmlHeaders,
        this.checkListExists,
        this.htmlFooters
    ]

    this.step();
}

BuzzPage.prototype.step = function() {
    $.proxy(this.steps.shift(), this)();
};

BuzzPage.prototype.htmlHeaders = function() {
    echo('<h1>' + this.list + '</h1>');

    return this.step();
};

BuzzPage.prototype.htmlFooters = function() {
    echo('<footer>Thank you, come again</footer>');
};

BuzzPage.prototype.checkListExists = function() {
    var self = this;

    storage().info(this.list + '/recent.json').
    on('failure', function() {
        echo ('this list does not exist');

        return self.htmlFooters();
    }).
    on('success', function(info) {
        return self.step();
    });
}

new BuzzPage(process.argv[2]);