import {z} from 'zod'

export type GetApiApiV1SourcesArgs = {limit?: number | undefined, cursor?: string | undefined, fields?: string | undefined, 'If-None-Match'?: string | undefined, 'If-Modified-Since'?: string | undefined};

export type GetApiApiV1SourcesOptions = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const sourceSummary = z.object({id: z.string(), name: z.string(), domain: z.string(), country: z.string().nullable().optional(), source_type: z.enum(["news_publication", "wire_service", "press_release", "government", "trade_publication", "blog", "stock_exchange", "research"])});

export const getApiApiV1SourcesResponse = z.object({sources: z.array(sourceSummary).optional(), pagination: z.object({count: z.number().int().optional(), next_cursor: z.string().nullable().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
};

/**
 * List Sources
 * 
 * GET /api/v1/sources
 */
export const getApiApiV1Sources = async (args: GetApiApiV1SourcesArgs, options?: GetApiApiV1SourcesOptions) => {
const {baseUrl = "https://nordicfinancialnews.com", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.fields != null) query.append("fields", String(args.fields))
if (args['If-None-Match'] != null) headers.set("If-None-Match", String(args['If-None-Match']))
if (args['If-Modified-Since'] != null) headers.set("If-Modified-Since", String(args['If-Modified-Since']))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/sources${query.size > 0 ? `?${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(getApiApiV1SourcesResponse, await res.json())
};