peterkeen/payola

var PayolaPaymentForm = {
    initialize: function() {
        $(document).off('submit.payola-payment-form').on(
            'submit.payola-payment-form', '.payola-payment-form',
            function() {
                return PayolaPaymentForm.handleSubmit($(this));
            }
        );
    },

    handleSubmit: function(form) {
        form.find(':submit').prop('disabled', true);
        $('.payola-spinner').show();
        Stripe.card.createToken(form, function(status, response) {
            PayolaPaymentForm.stripeResponseHandler(form, status, response);
        });
        return false;
    },

    stripeResponseHandler: function(form, status, response) {
        if (response.error) {
            PayolaPaymentForm.showError(form, response.error.message);
        } else {
            var email = form.find("[data-payola='email']").val();

            var base_path = form.data('payola-base-path');
            var product = form.data('payola-product');
            var permalink = form.data('payola-permalink');
            var currency = form.data('payola-currency');
            var stripe_customer_id = form.data('stripe_customer_id');
  
            var data_form = $('<form></form>');
            data_form.append($('<input type="hidden" name="stripe_customer_id">').val(stripe_customer_id));
            data_form.append($('<input type="hidden" name="currency">').val(currency));
            data_form.append($('<input type="hidden" name="stripeToken">').val(response.id));
            data_form.append($('<input type="hidden" name="stripeEmail">').val(email));
            data_form.append(PayolaPaymentForm.authenticityTokenInput());

            $.ajax({
                type: "POST",
                url: base_path + "/buy/" + product + "/" + permalink,
                data: data_form.serialize(),
                success: function(data) { PayolaPaymentForm.poll(form, 60, data.guid, base_path); },
                error: function(data) { PayolaPaymentForm.showError(form, jQuery.parseJSON(data.responseText).error); }
            });
        }
    },

    poll: function(form, num_retries_left, guid, base_path) {
        if (num_retries_left === 0) {
            PayolaPaymentForm.showError(form, "This seems to be taking too long. Please contact support and give them transaction ID: " + guid);
        }

        var handler = function(data) {
            if (data.status === "finished") {
                form.append($('<input type="hidden" name="payola_sale_guid"></input>').val(guid));
                form.append(PayolaPaymentForm.authenticityTokenInput());
                form.get(0).submit();
            } else {
                setTimeout(function() { PayolaPaymentForm.poll(form, num_retries_left - 1, guid, base_path); }, 500);
            }
        };
        var errorHandler = function(jqXHR) {
            PayolaPaymentForm.showError(form, jQuery.parseJSON(jqXHR.responseText).error);
        };

        $.ajax({
            type: 'GET',
            dataType: 'json',
            url: base_path + '/status/' + guid,
            success: handler,
            error: errorHandler
        });
    },

    showError: function(form, message) {
        $('.payola-spinner').hide();
        $(form).find(':submit')
               .prop('disabled', false)
               .trigger('error', message);
        var error_selector = form.data('payola-error-selector');
        if (error_selector) {
            $(error_selector).text(message);
        } else {
            form.find('.payola-payment-error').text(message);
        }
    },

    authenticityTokenInput: function() {
        return $('<input type="hidden" name="authenticity_token"></input>').val($('meta[name="csrf-token"]').attr("content"))
    }
};

PayolaPaymentForm.initialize();