postcode form js

gistfile1.txt

{% includejs %}

                $('.postcode-form').submit(function(ev) {
                    // Prevent the form from actually submitting
                    ev.preventDefault();

                    var inputVal = $(this).find('input').val();

                    if(inputVal.length == 0 ){
                        $(this).find('input').addClass('b--red');
                        $('.error').show();
                        $('.error').html('Please make sure you enter a valid postcode');
                    } else {

                        var data = {};
                
                        data[window.csrfTokenName] = window.csrfTokenValue;

                        data['action'] = 'postman/rates/estimate';
                        data['variantId'] = {{ variants[0].id }};
                        data['address']['zipCode'] = inputVal;
                        data['address']['countryCode'] = 'GB'

                        console.log(data)
                
                        // Send it to the server
                        $.post(
                            window.location.href, data
                        ).done(function(response){
                            if (response.success) {

                                console.log(response)
                                
                                var results = response.rates;
                                var rateAmounts = [];

                                var t = results.map(function (rate) {
                                    if (rate.serviceName == "Collect from Showroom") {
                                        $('.is-collection').removeClass('dn');
                                        return rate;
                                    } else if(rate.serviceHandle == "free_shipping"){
                                        $('.delivery-text').html(rate.serviceName);
                                        $('.is-collection').removeClass('dn');
                                        return rate;
                                    } else {
                                        var resultRate = rate.amount;
                                        rateAmounts.push(resultRate);
                                    }
                                });
                                
                                const minRate = Math.min.apply(null, rateAmounts);
                                $('.delivery-text').removeClass('dn');
                                $('.cheapest-delivery').html('£'+minRate);

                            } else {
                                alert('error');
                            }
                        })
                        .fail(function(jqXHR, textStatus, errorThrown){
                            $('.error').show();
                            $('.error').html('Ooops theres an error, please check postcode is valid');
                        })

                    }
                    
                });
            {% endincludejs %}