import type { Attributes, Value } from '@scayle/storefront-api';
/**
 * Returns the first value of an attribute.
 * This function is useful when you need to get the first value of an attribute.
 *
 * This returns undefined, if the attribute doesn't exist or if it doesn't have any values.
 *
 * @param attributes - The product attributes object
 * @param attributeName - The name of the attribute to look up
 *
 * @returns The first value of the attribute, or undefined if the attribute doesn't exist or has no values
 *
 * @example
 * ```typescript
 * const firstColor = getFirstAttributeValue(product.attributes, 'color')
 * // Returns: { id: 1, label: 'Red', value: 'red' }
 * ```
 */
export declare const getFirstAttributeValue: (attributes: Attributes | undefined, attributeName: string) => Value | undefined;
/**
 * Returns all values of an attribute group by its name key.
 * This function always returns an array, making it safe to use in iterations.
 * For single-select attributes, the value is wrapped in an array.
 * For multi-select attributes, the array is returned directly.
 *
 * @param attributes - The product attributes object
 * @param name - The name key of the attribute group to look up (e.g., 'color', 'size')
 *
 * @returns An array of values, or an empty array if the attribute doesn't exist or has no values
 *
 * @example
 * ```typescript
 * // Single-select attribute
 * const sizes = getAttributeValuesByName(product.attributes, 'size')
 * // Returns: [{ id: 1, label: 'M', value: 'medium' }]
 *
 * // Multi-select attribute
 * const colors = getAttributeValuesByName(product.attributes, 'color')
 * // Returns: [{ id: 1, label: 'Red' }, { id: 2, label: 'Blue' }]
 * ```
 */
export declare const getAttributeValuesByName: (attributes: Attributes | undefined, name: string) => Value[];
/**
 * Returns all values of an attribute group by its numeric ID.
 *
 * This function searches through all attribute groups to find one matching the given ID.
 * This is useful when you need to look up attributes by their SCAYLE API identifier rather than by name.
 * Like {@link getAttributeValuesByName}, this always returns an array for consistency.
 *
 * @param attributes - The product attributes object
 * @param groupId - The numeric ID of the attribute group to look up
 * @returns An array of values, or an empty array if the attribute doesn't exist or has no values
 *
 * @example
 * ```typescript
 * // Look up by attribute group ID instead of name
 * const promotionValues = getAttributeValuesByGroupId(product.attributes, 42)
 * // Returns: [{ id: 123, label: 'Summer Sale', value: 'summer-2024' }]
 * ```
 */
export declare const getAttributeValuesByGroupId: (attributes: Attributes | undefined, groupId: number) => Value[];
/**
 * Retrieves the value or label of the first attribute value for a given attribute name.
 *
 * @param attributes The set of attributes.
 * @param attributeName The name of the attribute to retrieve.
 *
 * @returns The value or label of the first attribute value, or null if not found.
 */
export declare const getAttributeValue: (attributes: Attributes | undefined, attributeName: string) => string | undefined;
/**
 * Retrieves the first attribute value for multiple attribute names.
 *
 * @param attributes The set of attributes.
 * @param attributeNames An array of attribute names to retrieve.
 *
 * @returns An array of attribute values, filtered to remove any null or undefined values.
 */
export declare const getManyAttributeValueTuples: (attributes: Attributes | undefined, attributeNames: string[]) => Value[];
/**
 * @deprecated This function will be removed in the next major version. Use {@link getAttributeValuesByName} instead.
 */
export { getAttributeValuesByName as getAttributeValueTuples };