var Paybybill = Class.create();
Paybybill.prototype = {

	initialize: function(form){
        this.form = form;
        this.updatesection = 'payment_form_';
        this.onSuccess = this.updateText.bindAsEventListener(this);
        this.onComplete = this.resetLoadWaiting.bindAsEventListener(this);
        this.onFailure = this.communicationFailure;
    },
    
    checkform: function(method) {
    	if (!$(this.form)) {
    		var pbbform = new Element('form', {"id": "paybybill-payment-form", "action": "" });
    		var pbbinput = new Element("input");
    		pbbinput.setAttribute("type","hidden");
    		pbbinput.setAttribute("name","payment[method]");
    		pbbinput.setAttribute("value",method);
    		pbbform.appendChild(pbbinput);
    		$(this.updatesection).wrap(pbbform);
    		this.form = "paybybill-payment-form";
    	}
    },
    
    magic: function(method,url) {
    	this.checkUrl = url;
    	this.updatesection = 'payment_form_'+method;
    	this.checkform(method);
    	this.checkcustomer();
    },
    
    checkcustomer: function() {
        if (checkout.loadWaiting!=false) return;    	
        this.setLoadWaiting(true);
        var request = new Ajax.Request(
            this.checkUrl,
            {
                method:'post',
                onComplete: this.onComplete,
                onSuccess: this.onSuccess,
                onFailure: this.onFailure,
                parameters: Form.serialize(this.form)
            }
        );
    },

	resetLoadWaiting: function(transport){
		this.setLoadWaiting(false);
	},
	
	communicationFailure: function(transport){
		alert(Translator.translate('A communication problem has occured. Please try again.'));

	},
	
	updateText: function(transport) {
        if (transport && transport.responseText){
            try{
                response = eval('(' + transport.responseText + ')');
            }
            catch (e) {
                response = {};
                response.error = true;
            }
        }
        
        if (response.error) {
        	if ((typeof response.html) == 'string') {
        		alert(response.html);
        	}
        	else {
        		alert(Translator.translate('An unknown error has occured. Please try again.'));
        	}
        }
        else {
    		$(this.updatesection).up(1).update(response.html);
        }
        
	},
	
	setLoadWaiting: function(active) {
		pbb_button = $('pbb_button');
		pbb_progress = $('pbb_progress');
		if (active) {
	        checkout.setLoadWaiting('payment');
	        if(pbb_button) {
	        	pbb_button.hide()
	        }
	        if (pbb_progress) {
	        	pbb_progress.show();	        	
	        }
		}
		else {
			checkout.setLoadWaiting(false);
			pbb_button.show();
			pbb_progress.hide();
		}
	},
	
	showterms: function(url,close_text) {

		var text_window = $('pbb_terms_text');
		var pbb_window = $('pbb_terms');

		if (text_window == null) {
			pbb_window = new Element('div', { 'id': 'pbb_terms'});
			pbb_window.hide();
			
			text_window = new Element('div', {'id': 'pbb_terms_text'});
			pbb_window.appendChild(text_window);

			close_button = new Element('a', {'onclick': '$(\'pbb_terms\').hide(); return false;', href: '#'}).update(close_text);
			pbb_window.appendChild(close_button);
			
			document.body.appendChild(pbb_window);
		}
		
		left_pos =  (document.documentElement.offsetWidth/2 - 250);
		top_pos = (window.pageYOffset||document.documentElement.scrollTop||document.body.scrollTop) + 50;
		pbb_window.setStyle({ 
			left: left_pos + 'px',
			top: top_pos + 'px'
		});
		
		text_window.update('<div class="loading-ajax">&nbsp;</div>');
		
		new Ajax.Updater('pbb_terms_text', url, { method: 'get' });
		pbb_window.show();
	}
}

var paybybill = new Paybybill('co-payment-form');