import {z} from 'zod'

export type GetApiConsensusRatingsArgs = {page?: number | undefined, pagesize?: number | undefined, 'parameters[date_from]'?: string | undefined, 'parameters[date_to]'?: string | undefined, 'parameters[tickers]'?: string | undefined, simplify?: string | undefined, aggregate_type?: ('number' | 'percentage') | undefined};

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

export const apiAggregateRating = z.object({buy: z.number().int().optional(), hold: z.number().int().optional(), sell: z.number().int().optional(), strong_buy: z.number().int().optional(), strong_sell: z.number().int().optional()});

export const apiConsensusRating = z.object({aggregate_ratings: apiAggregateRating.optional(), aggregate_type: z.string().optional(), consensus_price_target: z.number().optional(), consensus_rating: z.string().optional(), consensus_rating_val: z.number().optional(), high_price_target: z.number().optional(), low_price_target: z.number().optional(), total_analyst_count: z.number().int().optional(), unique_analyst_count: z.number().int().optional(), updated_at: z.string().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
};

/**
 * Get Consensus Ratings
 * 
 * GET /consensus_ratings
 */
export const getApiConsensusRatings = async (args: GetApiConsensusRatingsArgs, options?: GetApiConsensusRatingsOptions) => {
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.page != null) query.append("page", String(args.page))
if (args.pagesize != null) query.append("pagesize", String(args.pagesize))
if (args['parameters[date_from]'] != null) query.append("parameters[date_from]", String(args['parameters[date_from]']))
if (args['parameters[date_to]'] != null) query.append("parameters[date_to]", String(args['parameters[date_to]']))
if (args['parameters[tickers]'] != null) query.append("parameters[tickers]", String(args['parameters[tickers]']))
if (args.simplify != null) query.append("simplify", String(args.simplify))
if (args.aggregate_type != null) query.append("aggregate_type", String(args.aggregate_type))
if (ApiKeyAuth !== undefined) query.set("token", ApiKeyAuth)

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