Ürün etiketine göre kargo seçeneklerini gizleme

api_version = "2026-10"

[[extensions]]
name = "Hide shipping rates by product tag"
handle = "hide-rates-by-product-tag"
type = "function"

  [[extensions.targeting]]
  target = "cart.delivery-options.transform.run"
  input_query = "src/cart_delivery_options_transform_run.graphql"
  input_variables = { namespace = "$app", key = "function-configuration" }
  export = "cart-delivery-options-transform-run"

  [extensions.build]
  command = ""
  path = "dist/function.wasm"

query CartDeliveryOptionsTransformRunInput($productTags: [String!]) {
  cart {
    deliveryGroups {
      cartLines {
        merchandise {
          __typename
          ... on ProductVariant {
            product {
              hasAnyTag(tags: $productTags)
            }
          }
        }
      }
      deliveryOptions {
        handle
        title
      }
    }
  }
  deliveryCustomization {
    metafield(namespace: "$app", key: "function-configuration") {
      jsonValue
    }
  }
}

// @ts-check

/**
 * @typedef {import("../generated/api").CartDeliveryOptionsTransformRunInput} CartDeliveryOptionsTransformRunInput
 * @typedef {import("../generated/api").CartDeliveryOptionsTransformRunResult} CartDeliveryOptionsTransformRunResult
 */

/**
 * Settings stored as JSON in the customization's metafield. The same
 * metafield feeds the query's $productTags variable (see input_variables in
 * shopify.extension.toml), so tags are checked by Shopify, not in this code.
 */
const DEFAULT_CONFIG = {
  // Matched case-insensitively anywhere in the delivery option title.
  optionTitles: /** @type {string[]} */ ([]),
};

/**
 * @param {CartDeliveryOptionsTransformRunInput} input
 * @returns {CartDeliveryOptionsTransformRunResult}
 */
export function cartDeliveryOptionsTransformRun(input) {
  const config = { ...DEFAULT_CONFIG, ...input.deliveryCustomization?.metafield?.jsonValue };
  const titles = config.optionTitles.map((title) => title.toLowerCase());

  // Only the shipment that contains a tagged product loses the options; other
  // delivery groups in a split cart keep theirs.
  const operations = input.cart.deliveryGroups
    .filter((group) =>
      group.cartLines.some(
        (line) => line.merchandise.__typename === "ProductVariant" && line.merchandise.product.hasAnyTag,
      ),
    )
    .flatMap((group) => group.deliveryOptions)
    .filter((option) => titles.some((title) => (option.title ?? "").toLowerCase().includes(title)))
    .map((option) => ({ deliveryOptionHide: { deliveryOptionHandle: option.handle } }));

  return { operations };
}