import {z} from 'zod'

export type GetApiStrataSrCodeArgs = {sr_code: string, detail?: ('minimal' | 'full') | undefined, create_parquet?: boolean | undefined};

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

export const stemCountMinimal = z.object({ob_code: z.string().optional(), to_code: z.string().optional(), tm_code: z.string().optional(), sr_code: z.string().optional(), sc_code: z.string().optional(), diameter: z.number().optional(), diameter_accuracy: z.number().optional(), height: z.number().optional(), height_accuracy: z.number().optional(), count: z.number().int().optional(), taxon_area: z.number().optional()});

export const stemCountFull = z.object({count: z.number().int().optional(), data: z.array(z.object({ob_code: z.string().optional(), to_code: z.string().optional(), tm_code: z.string().optional(), sr_code: z.string().optional(), sc_code: z.string().optional(), diameter: z.number().optional(), diameter_accuracy: z.number().optional(), height: z.number().optional(), height_accuracy: z.number().optional(), count: z.number().int().optional(), taxon_area: z.number().optional(), author_obs_code: z.string().optional(), author_plant_name: z.string().optional(), stratum_name: z.string().optional()})).optional()});

export const getApiStrataSrCodeResponse = z.union([stemCountMinimal, stemCountFull]);

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 stratum
 * 
 * GET /strata/{sr_code}
 */
export const getApiStrataSrCode = async (args: GetApiStrataSrCodeArgs, options?: GetApiStrataSrCodeOptions) => {
const {baseUrl = "https://api.vegbank.org", fetch: fetchFn = fetch} = options ?? {}

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

if (args.detail != null) query.append("detail", String(args.detail))
if (args.create_parquet != null) query.append("create_parquet", String(args.create_parquet))

const url = `${baseUrl.replace(/\/+$/, '')}/strata/${encodeURIComponent(String(args.sr_code))}${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(getApiStrataSrCodeResponse, await res.json())
};