import {z} from 'zod'

export type Locale = string;

export type GetApiWsListingsArgs = {publication_state?: (0 | 1 | 2 | 3 | 4) | undefined, min_quantity?: number | undefined, max_quantity?: number | undefined, page?: number | undefined, 'page-size'?: number | undefined, 'Accept-Language'?: Locale | undefined};

export type GetApiWsListingsOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const listingStateValue = z.union([z.literal(9), z.literal(0), z.literal(1), z.literal(2), z.literal(3), z.literal(4)]);

export const aestheticGradeValue = z.enum(["PREMIUM", "EXCELLENT", "VERY_GOOD", "GOOD", "FAIR", "STALLONE"]);

export const listingPublic = z.object({backmarket_id: z.number().int(), comment: z.string().nullable(), currency: z.string(), id: z.string(), listing_id: z.number().int(), max_price: z.string(), min_price: z.string().nullable(), price: z.string(), product_id: z.string(), publication_state: z.union([z.literal(0), z.literal(1), z.literal(2), z.literal(3), z.literal(4)]), quantity: z.number().int(), shippings: z.array(z.object({country_code: z.string(), shipper: z.string(), shipper_display: z.string(), shipping_delay: z.number().int(), shipping_price: z.string()})), sku: z.string(), state: listingStateValue, grade: aestheticGradeValue, title: z.string(), warranty_delay: z.number().int(), new_battery: z.boolean().optional(), outlet: z.boolean().optional()});

export const getApiWsListingsResponse = z.object({count: z.number().int(), next: z.string().nullable(), previous: z.string().nullable(), results: z.array(listingPublic)});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Get listings
 * 
 * GET /ws/listings
 * 
 * Also accepts auth: BasicAuth
 */
export const getApiWsListings = async (args: GetApiWsListingsArgs, options?: GetApiWsListingsOptions) => {
const {baseUrl = "https://preprod.backmarket.co.jp", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('accept', "application/json")

if (args.publication_state != null) query.append("publication_state", String(args.publication_state))
if (args.min_quantity != null) query.append("min_quantity", String(args.min_quantity))
if (args.max_quantity != null) query.append("max_quantity", String(args.max_quantity))
if (args.page != null) query.append("page", String(args.page))
if (args['page-size'] != null) query.append("page-size", String(args['page-size']))
if (args['Accept-Language'] != null) headers.set("Accept-Language", String(args['Accept-Language']))
if (ApiKeyAuth !== undefined) headers.set("Authorization", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/ws/listings${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(getApiWsListingsResponse, await res.json())
};