YUI().use('node', function(Y) {

    var app = {
        
        MAX_MESSAGE_LENGTH: 180,
        
        formli: Y.get('li#postMessageForm'),
        linkli: Y.get('li#postMessageLink'),
        wordcount: Y.get('#postMessageRemainingCount'),
        textarea: Y.get('#postMessageTextArea'),
        submitlink: Y.get('#postMessageSubmit'),

        content: '',

        setRemainingCharactersCount: function(content) {
            if (content.length > this.MAX_MESSAGE_LENGTH) {
                content = content.substring(0, this.MAX_MESSAGE_LENGTH);
                this.textarea.set('value', content);
            }
            
            var count = this.MAX_MESSAGE_LENGTH - content.length;
            this.wordcount.set('text', count);
        },
        
        setupListeners: function() {
            this.formli.addClass('hidden');
            this.setRemainingCharactersCount(this.content);

            this.linkli.on('click', function(e) {
                e.preventDefault();
                this.formli.removeClass('hidden');
                this.linkli.addClass('hidden');
            }, this);

            this.textarea.on('blur', function() {
                this.content = this.textarea.get('value');
                if (this.content == '') {
                    this.textarea.set('value', 'Type your message here...');
                    this.textarea.addClass('ghosting');
                }
            }, this);

            this.textarea.on('focus', function() {
                if (this.content == '') {
                    this.textarea.set('value', this.content);
                    this.textarea.removeClass('ghosting');
                }
            }, this);

            this.textarea.on('keyup', function() {
                this.setRemainingCharactersCount(this.textarea.get('value'));
            }, this);

            this.submitlink.on('click', function(e) {
                e.preventDefault();
                if (this.content == '') {
                    alert('Please type your message in the box provided.');
                } else {
                    this.formli.one('form').submit();
                }
            }, this);
        }
    };

    app.setupListeners();
});