import {z} from 'zod'

export type GetApiReviewsFormatArgs = {isbn?: number | undefined, title?: string | undefined, author?: string | undefined, 'api-key'?: string | undefined};

export type GetApiReviewsFormatOptions = {baseUrl?: string | undefined, apiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const getApiReviewsFormatResponse = z.object({status: z.string().optional(), copyright: z.string().optional(), num_results: z.number().int().optional(), results: z.array(z.object({url: z.string().optional(), publication_dt: z.string().optional(), byline: z.string().optional(), book_title: z.string().optional(), book_author: z.string().optional(), summary: z.string().optional(), isbn13: z.array(z.string()).optional()})).optional()});

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
};

/**
 * Reviews
 * 
 * GET /reviews.{format}
 */
export const getApiReviewsFormat = async (args: GetApiReviewsFormatArgs, options?: GetApiReviewsFormatOptions) => {
const {baseUrl = "https://api.nytimes.com/svc/books/v3", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.isbn != null) query.append("isbn", String(args.isbn))
if (args.title != null) query.append("title", String(args.title))
if (args.author != null) query.append("author", String(args.author))
if (args['api-key'] != null) query.append("api-key", String(args['api-key']))
if (apiKey !== undefined) query.set("api-key", apiKey)

const url = `${baseUrl.replace(/\/+$/, '')}/reviews.${encodeURIComponent(String(args.format))}${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(getApiReviewsFormatResponse, await res.json())
};