import {z} from 'zod'

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

export const bloombergProviderKwargsPostType = z.enum(["EOD", "RT", "EOD_AND_RT"]);

export const bloombergProviderKwargs = z.object({post_type: bloombergProviderKwargsPostType});

export const reutersProviderKwargsPostType = z.enum(["EOD", "RT", "EOD_AND_RT", "EOD_AND_RT_COMBINED"]);

export const reutersProviderKwargs = z.object({post_type: reutersProviderKwargsPostType.optional()});

export const secapiProviderKwargs = z.object({metric: z.string(), security_name: z.string(), security_type: z.string()});

export const nasdaqProviderKwargs = z.object({eod_date_delta: z.number().int().optional(), nasdaq_env: z.enum(["testing", "production"])});

export const status = z.object({created_at: z.string().optional(), created_by: z.string().optional(), last_modified: z.string(), last_modified_by: z.string().optional(), locked_after: z.string().optional()});

export const identifierUUIDPatchPutGet = z.object({display_name: z.string().optional(), index_name: z.string(), metric: z.string().optional(), name: z.string(), namespace: z.string(), num_days: z.number().int().gte(0).optional(), provider_kwargs: z.union([bloombergProviderKwargs, reutersProviderKwargs, secapiProviderKwargs, nasdaqProviderKwargs]).optional(), rounding_decimals: z.number().int().optional(), rounding_type: z.enum(["standard", "sigfig"]).optional(), start_date: z.string().optional(), ticker: z.string(), id: z.string(), status: status});

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
};

/**
 * Returns the identifier for this provider with this uuid
 * 
 * GET /identifier/{provider}/{uuid}
 */
export const getApiIdentifierProviderUuid = async (options?: GetApiIdentifierProviderUuidOptions) => {
const {baseUrl = "https://api.merqube.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/identifier/${encodeURIComponent(String(args.provider))}/${encodeURIComponent(String(args.uuid))}${query.size > 0 ? `?${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(identifierUUIDPatchPutGet, await res.json())
};