import type { SortType } from './mod.ts';


export type ViewId = 'production' | 'preview';
export type FacetValue = boolean | string[] | FacetRange;
export type FacetRange = { min: number, max?: number; } | { min?: number, max: number; };
export interface FacetParams {
  [key: string]: FacetValue;
}

// GENERAL PARAM TYPES

/** Parameters shared between all Storefront queries */
export interface BaseParams {
  /** Setting this parameter can change the returned content between "preview" and "production" (default) */
  viewId?: ViewId;
  /** Set this parameter to `false` to not generate any event data for this request */
  notify?: boolean;
}

/** Parameters that change product data based on current context (price used, channels, etc) */
export interface ProductContextParams {
  /** Set this parameter to change to a custom price that exists in your product feed */
  priceId?: string;
  /**
   * Selects what channels to use, ONLINE or STORE, affecting stock-related ranking and filtering.
   * Defaults to ONLINE|STORE
   */
  channels?: 'ONLINE' | 'STORE' | 'ONLINE|STORE' | 'STORE|ONLINE';
  /** One or more store keys from the product feed, used with channels and presented in the result */
  stores?: string;
}

/** Parameters used by queries that search for items */
export interface SearchParams {
  /** The search query for this request */
  q: string;
}

/** Paramaters used by pagination of products or content items */
export interface PaginationParams {
  /** For implementing pagination, how many items to fetch in the result (defaults to 60) */
  limit?: number;
  /** For implementing pagination, how many items to skip in the result */
  skip?: number;
}

// PAGE CONTEXT PARAM TYPES

/** Paramaters that are shared for endpoints returning products */
export interface ProductParams extends BaseParams, ProductContextParams {
  /** A list of custom attributes to include on products in listings */
  presentCustom?: string[];
  /**
   * A list of custom price ID's to include for products.
   *
   * Each ID must match a supplied custom price ID in the data feed.
   * @example
   * ['VIP', 'member']
   */
  presentPrices?: string[];
  /**
   * The ID of a response template to apply to all product lists returned.
   *
   * Templates can adjust which attributes are returned for products, and makes
   * `presentCustom` unnecessary. Templates can be imported via the Admin API.
   * @see https://docs.elevate.voyado.cloud/elevate/4/guides/product-list-response-templates/
   */
  templateId?: string;
}

/** Paramaters used by pages that list products, for pagination, sorting, and facets */
export interface ProductListParams extends PaginationParams {
  /** The facets to be passed along e.g.
   * @example
   * {
   *   "price": { "min": 10, "max": 100 }, // range
   *   "custom.fit": [ "slim", "regular" ], // multiple values
   * }
   */
  facets?: FacetParams;
  /** Changes how products are sorted in the response */
  sort?: SortType;
}