import {z} from 'zod'

export type GetApiApiV2NewsArgs = {tickers?: string | undefined, cusips?: string | undefined, isins?: string | undefined, channels?: string | undefined, topics?: string | undefined, authors?: string | undefined, contentTypes?: string | undefined, sort?: string | undefined, date?: string | undefined, publishedSince?: string | undefined, updatedSince?: string | undefined, dateFrom?: string | undefined, dateTo?: string | undefined, pageSize?: number | undefined, page?: number | undefined, lastID?: string | undefined, displayOutput?: string | undefined, noise?: string | undefined, format?: string | undefined};

export type GetApiApiV2NewsOptions = {baseUrl?: string | undefined, ApiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const apiChannelTag = z.object({name: z.string().optional()});

export const apiImage = z.object({size: z.string().optional(), url: z.string().optional()});

export const apiStock = z.object({cusip: z.string().optional(), isin: z.string().optional(), name: z.string().optional()});

export const apiNewsItem = z.object({author: z.string().optional(), body: z.string().optional(), channels: z.array(apiChannelTag).optional(), created: z.string().optional(), id: z.number().int().optional(), image: z.array(apiImage).optional(), original_id: z.number().int().optional(), stocks: z.array(apiStock).optional(), tags: z.array(apiChannelTag).optional(), teaser: z.string().optional(), title: z.string().optional(), updated: z.string().optional(), url: z.string().optional()});

export const getApiApiV2NewsResponse = z.array(apiNewsItem);

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 News
 * 
 * GET /api/v2/news
 */
export const getApiApiV2News = async (args: GetApiApiV2NewsArgs, options?: GetApiApiV2NewsOptions) => {
const {baseUrl = "https://api.benzinga.com", fetch: fetchFn = fetch, ApiKeyAuth} = options ?? {}

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

if (args.tickers != null) query.append("tickers", String(args.tickers))
if (args.cusips != null) query.append("cusips", String(args.cusips))
if (args.isins != null) query.append("isins", String(args.isins))
if (args.channels != null) query.append("channels", String(args.channels))
if (args.topics != null) query.append("topics", String(args.topics))
if (args.authors != null) query.append("authors", String(args.authors))
if (args.contentTypes != null) query.append("contentTypes", String(args.contentTypes))
if (args.sort != null) query.append("sort", String(args.sort))
if (args.date != null) query.append("date", String(args.date))
if (args.publishedSince != null) query.append("publishedSince", String(args.publishedSince))
if (args.updatedSince != null) query.append("updatedSince", String(args.updatedSince))
if (args.dateFrom != null) query.append("dateFrom", String(args.dateFrom))
if (args.dateTo != null) query.append("dateTo", String(args.dateTo))
if (args.pageSize != null) query.append("pageSize", String(args.pageSize))
if (args.page != null) query.append("page", String(args.page))
if (args.lastID != null) query.append("lastID", String(args.lastID))
if (args.displayOutput != null) query.append("displayOutput", String(args.displayOutput))
if (args.noise != null) query.append("noise", String(args.noise))
if (args.format != null) query.append("format", String(args.format))
if (ApiKeyAuth !== undefined) query.set("token", ApiKeyAuth)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v2/news${query.size > 0 ? `?${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(getApiApiV2NewsResponse, await res.json())
};