com.dft.api.shopify.model.ShopifyVariantCreationRequest Maven / Gradle / Ivy

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package com.dft.api.shopify.model;

import java.math.BigDecimal;
import java.math.RoundingMode;

public class ShopifyVariantCreationRequest implements ShopifyVariantRequest {

    private final ShopifyVariant request;
    private final String imageSource;

    public static interface PriceStep {
        public CompareAtPriceStep withPrice(final BigDecimal price);
    }

    public static interface CompareAtPriceStep {
        public SkuStep withCompareAtPrice(final BigDecimal compareAtPrice);

        public SkuStep noCompareAtPrice();
    }

    public static interface SkuStep {
        public BarcodeStep withSku(final String sku);
    }

    public static interface BarcodeStep {
        public WeightStep withBarcode(final String barcode);
    }

    public static interface WeightStep {
        public AvailableStep withWeight(final BigDecimal weight);
    }

    public static interface AvailableStep {
        public FirstOptionStep withAvailable(final long available);
    }

    public static interface FirstOptionStep {
        public SecondOptionStep withFirstOption(final String option);

        public SecondOptionStep noFirstOption();
    }

    public static interface SecondOptionStep {
        public ThirdOptionStep withSecondOption(final String option);

        public ThirdOptionStep noSecondOption();
    }

    public static interface ThirdOptionStep {
        public ImageSourceStep withThirdOption(final String option);

        public ImageSourceStep noThirdOption();
    }

    public static interface ImageSourceStep {
        public InventoryManagementStep withImageSource(final String imageSource);

        public InventoryManagementStep noImageSource();
    }

    public static interface InventoryManagementStep {
        public InventoryPolicyStep withInventoryManagement(final String inventoryManagement);

        public InventoryPolicyStep withDefaultInventoryManagement();
    }

    public static interface InventoryPolicyStep {
    }

    public static interface FulfillmentServiceStep {
        public RequiresShippingStep withFulfillmentService(final String fulfillmentService);

        public RequiresShippingStep withDefaultFulfillmentService();
    }

    public static interface RequiresShippingStep {
        public TaxableStep withRequiresShipping(final boolean requiresShipping);

        public TaxableStep withRequiresShippingDefault();
    }

    public static interface TaxableStep {
        public BuildStep withTaxable(final boolean taxable);

        public BuildStep withTaxableDefault();
    }

    public static interface BuildStep {
        public ShopifyVariantCreationRequest build();
    }

    public static PriceStep newBuilder() {
        return new Steps();
    }

    @Override
    public ShopifyVariant getRequest() {
        return request;
    }

    @Override
    public String getImageSource() {
        return imageSource;
    }

    @Override
    public boolean hasImageSource() {
        return imageSource != null;
    }

    @Override
    public boolean hasChanged() {
        return true;
    }

    private ShopifyVariantCreationRequest(final ShopifyVariant shopifyVariant, final String imageSource) {
        this.request = shopifyVariant;
        this.imageSource = imageSource;
    }

    private static class Steps implements PriceStep, CompareAtPriceStep, SkuStep, BarcodeStep, WeightStep,
        AvailableStep, FirstOptionStep, SecondOptionStep, ThirdOptionStep, ImageSourceStep, InventoryManagementStep,
        InventoryPolicyStep, FulfillmentServiceStep, RequiresShippingStep, TaxableStep, BuildStep {
        private static final String DEFAULT_INVENTORY_MANAGEMENT = "shopify";
        private static final InventoryPolicy DEFAULT_INVENTORY_POLICY = InventoryPolicy.DENY;
        private static final String DEFAULT_FULFILLMENT_SERVICE = FulfillmentService.MANUAL.toString();
        private static final boolean REQUIRES_SHIPPING_DEFAULT = true;
        private static final boolean TAXABLE_DEFAULT = true;
        private static final int ZERO = 0;

        private final ShopifyVariant shopifyVariant = new ShopifyVariant();
        private String imageSource;

        @Override
        public ShopifyVariantCreationRequest build() {
            return new ShopifyVariantCreationRequest(shopifyVariant, imageSource);
        }

        @Override
        public ImageSourceStep withThirdOption(final String option) {
            shopifyVariant.setOption3(option);
            return this;
        }

        @Override
        public ImageSourceStep noThirdOption() {
            return this;
        }

        @Override
        public ThirdOptionStep withSecondOption(final String option) {
            shopifyVariant.setOption2(option);
            return this;
        }

        @Override
        public ThirdOptionStep noSecondOption() {
            return this;
        }

        @Override
        public SecondOptionStep withFirstOption(final String option) {
            shopifyVariant.setOption1(option);
            return this;
        }

        @Override
        public SecondOptionStep noFirstOption() {
            return this;
        }

        @Override
        public FirstOptionStep withAvailable(final long available) {
            shopifyVariant.setAvailable(available);
            return this;
        }

        @Override
        public AvailableStep withWeight(final BigDecimal weight) {
            final long grams = weight.setScale(ZERO, RoundingMode.HALF_UP).longValueExact();
            shopifyVariant.setGrams(grams);
            return this;
        }

        @Override
        public WeightStep withBarcode(final String barcode) {
            shopifyVariant.setBarcode(barcode);
            return this;
        }

        @Override
        public BarcodeStep withSku(final String sku) {
            shopifyVariant.setSku(sku);
            return this;
        }

        @Override
        public CompareAtPriceStep withPrice(final BigDecimal amount) {
            shopifyVariant.setPrice(amount);
            return this;
        }

        @Override
        public SkuStep withCompareAtPrice(final BigDecimal amount) {
            shopifyVariant.setCompareAtPrice(amount);
            return this;
        }

        @Override
        public InventoryManagementStep withImageSource(final String imageSource) {
            this.imageSource = imageSource;
            return this;
        }

        @Override
        public InventoryManagementStep noImageSource() {
            return this;
        }

        @Override
        public SkuStep noCompareAtPrice() {
            return this;
        }

        @Override
        public BuildStep withTaxable(final boolean taxable) {
            shopifyVariant.setTaxable(taxable);
            return this;
        }

        @Override
        public BuildStep withTaxableDefault() {
            shopifyVariant.setTaxable(TAXABLE_DEFAULT);
            return this;
        }

        @Override
        public TaxableStep withRequiresShipping(final boolean requiresShipping) {
            shopifyVariant.setRequiresShipping(requiresShipping);
            return this;
        }

        @Override
        public TaxableStep withRequiresShippingDefault() {
            shopifyVariant.setRequiresShipping(REQUIRES_SHIPPING_DEFAULT);
            return this;
        }

        @Override
        public RequiresShippingStep withFulfillmentService(final String fulfillmentService) {
            shopifyVariant.setFulfillmentService(fulfillmentService);
            return this;
        }

        @Override
        public RequiresShippingStep withDefaultFulfillmentService() {
            shopifyVariant.setFulfillmentService(DEFAULT_FULFILLMENT_SERVICE);
            return this;
        }

        @Override
        public InventoryPolicyStep withInventoryManagement(final String inventoryManagement) {
            shopifyVariant.setInventoryManagement(inventoryManagement);
            return this;
        }

        @Override
        public InventoryPolicyStep withDefaultInventoryManagement() {
            shopifyVariant.setInventoryManagement(DEFAULT_INVENTORY_MANAGEMENT);
            return this;
        }
    }

}