import {z} from 'zod'

export type GetApiV1FndStocksTickerFinancialsConceptArgs = {'Accept-Encoding': 'gzip', ticker: string, concept: string, taxonomy?: string | undefined};

export type GetApiV1FndStocksTickerFinancialsConceptOptions = {baseUrl?: string | undefined, ApiKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const metricValue = z.object({value: z.number().optional(), unit: z.string().optional(), period_start: z.string().optional(), period_end: z.string().optional(), fiscal_year: z.number().int().optional(), fiscal_period: z.string().optional(), form: z.string().optional(), accession: z.string().optional(), filed_at: z.string().optional()});

export const financialConcept = z.object({ticker: z.string().optional(), cik: z.string().optional(), taxonomy: z.string().optional(), concept: z.string().optional(), label: z.string().optional(), description: z.string().optional(), series: z.array(metricValue).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
};

/**
 * One XBRL concept (gzip required)
 * 
 * GET /v1/fnd/stocks/{ticker}/financials/{concept}
 * 
 * Also accepts auth: ApiKeyQuery
 */
export const getApiV1FndStocksTickerFinancialsConcept = async (args: GetApiV1FndStocksTickerFinancialsConceptArgs, options?: GetApiV1FndStocksTickerFinancialsConceptOptions) => {
const {baseUrl = "https://api.sifting.io", fetch: fetchFn = fetch, ApiKeyHeader} = options ?? {}

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

if (args['Accept-Encoding'] != null) headers.set("Accept-Encoding", String(args['Accept-Encoding']))
if (args.taxonomy != null) query.append("taxonomy", String(args.taxonomy))
if (ApiKeyHeader !== undefined) headers.set("X-API-Key", ApiKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/fnd/stocks/${encodeURIComponent(String(args.ticker))}/financials/${encodeURIComponent(String(args.concept))}${query.size > 0 ? `?${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(financialConcept, await res.json())
};