import {z} from 'zod'

export type GetApiV1StocksTickerGoingConcernArgs = {ticker: string};

export type GetApiV1StocksTickerGoingConcernOptions = {baseUrl?: string | undefined, ApiKey?: string | undefined, fetch?: typeof fetch | undefined};

export const goingConcernCurrentDto = z.object({isActive: z.boolean().optional(), flaggedDate: z.string().optional(), clearedDate: z.string().nullable().optional(), quote: z.string().nullable().optional(), form: z.string().nullable().optional(), filingUrl: z.string().nullable().optional(), firstFlaggedDate: z.string().nullable().optional(), firstFlaggedForm: z.string().nullable().optional()});

export const goingConcernHistoryDto = z.object({filedDate: z.string().optional(), form: z.string().nullable().optional(), filingUrl: z.string().nullable().optional(), substantialDoubt: z.boolean().optional(), alleviated: z.boolean().optional(), quote: z.string().nullable().optional()});

export const goingConcernResponse = z.object({ticker: z.string().nullable().optional(), companyName: z.string().nullable().optional(), examined: z.boolean().optional(), coverageStartDate: z.string().nullable().optional(), currentStatus: goingConcernCurrentDto.optional(), history: z.array(goingConcernHistoryDto).nullable().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
};

/**
 * Whether a company's latest SEC filing states substantial doubt about its ability to continue as a going concern, with the verbatim disclosure, the source filing, and the history of examined filings showing when doubt appeared, was alleviated, or cleared. Coverage begins at coverageStartDate — filings before it were never examined, so an episode predating it is invisible here, not disproven. examined is false when no filing has been checked yet.
 * 
 * GET /v1/stocks/{ticker}/going-concern
 */
export const getApiV1StocksTickerGoingConcern = async (args: GetApiV1StocksTickerGoingConcernArgs, options?: GetApiV1StocksTickerGoingConcernOptions) => {
const {baseUrl = "https://api.equibles.com", fetch: fetchFn = fetch, ApiKey} = options ?? {}

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

if (ApiKey !== undefined) headers.set('authorization', `Bearer ${ApiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/stocks/${encodeURIComponent(String(args.ticker))}/going-concern${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(goingConcernResponse, await res.json())
};