import {z} from 'zod'

export type GetApiArticlesearchJsonArgs = {q?: string | undefined, fq?: string | undefined, begin_date?: string | undefined, end_date?: string | undefined, sort?: ('newest' | 'oldest') | undefined, fl?: string | undefined, hl?: boolean | undefined, page?: number | undefined, facet_field?: string | undefined, facet_filter?: boolean | undefined};

export type GetApiArticlesearchJsonOptions = {baseUrl?: string | undefined, apikey?: string | undefined, fetch?: typeof fetch | undefined};

export const doc = z.object({web_url: z.string().optional(), snippet: z.string().optional(), lead_paragraph: z.string().optional(), abstract: z.string().optional(), print_page: z.string().optional(), blog: z.array(z.unknown()).optional(), source: z.string().optional(), headline: z.object({main: z.string().optional(), kicker: z.string().optional()}).optional(), keywords: z.object({rank: z.string().optional(), name: z.string().optional(), value: z.string().optional()}).optional(), pub_date: z.string().optional(), document_type: z.string().optional(), news_desk: z.string().optional(), section_name: z.string().optional(), subsection_name: z.string().optional(), byline: z.object({organization: z.string().optional(), original: z.string().optional(), person: z.array(z.unknown()).optional()}).optional(), type_of_material: z.string().optional(), _id: z.string().optional(), word_count: z.string().optional(), slideshow_credits: z.string().optional(), multimedia: z.array(z.object({url: z.string().optional(), format: z.string().optional(), height: z.number().int().optional(), width: z.number().int().optional(), type: z.string().optional(), subtype: z.string().optional(), caption: z.string().optional(), copyright: z.string().optional()})).optional()});

export const getApiArticlesearchJsonResponse = z.object({response: z.object({docs: z.array(doc).optional(), meta: z.object({hits: z.number().int().optional(), time: z.number().int().optional(), offset: z.number().int().optional()}).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
};

/**
 * Article Search
 * 
 * GET /articlesearch.json
 */
export const getApiArticlesearchJson = async (args: GetApiArticlesearchJsonArgs, options?: GetApiArticlesearchJsonOptions) => {
const {baseUrl = "http://api.nytimes.com/svc/search/v2", fetch: fetchFn = fetch, apikey} = options ?? {}

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

if (args.q != null) query.append("q", String(args.q))
if (args.fq != null) query.append("fq", String(args.fq))
if (args.begin_date != null) query.append("begin_date", String(args.begin_date))
if (args.end_date != null) query.append("end_date", String(args.end_date))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.fl != null) query.append("fl", String(args.fl))
if (args.hl != null) query.append("hl", String(args.hl))
if (args.page != null) query.append("page", String(args.page))
if (args.facet_field != null) query.append("facet_field", String(args.facet_field))
if (args.facet_filter != null) query.append("facet_filter", String(args.facet_filter))
if (apikey !== undefined) query.set("api-key", apikey)

const url = `${baseUrl.replace(/\/+$/, '')}/articlesearch.json${query.size > 0 ? `?${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(getApiArticlesearchJsonResponse, await res.json())
};