import {z} from 'zod'

export type HexId = string;

export type GetApiPgpProfilePgpHexIdArgs = {pgp_hex_id: HexId};

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

export const pGPUKProfile = z.array(z.object({public_profile_url: z.string().optional(), deceased: z.boolean().optional(), zip: z.string().optional(), files: z.array(z.object({file_source: z.string().optional(), download_url: z.string().optional(), data_type: z.string().optional(), name: z.string().optional(), description: z.string().optional(), data: z.string().optional()})).optional(), hex: z.string().optional(), real_name: z.string().optional(), type: 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 all PGP-UK profile meta data by PGP-UK hex id
 * 
 * GET /pgp_profile/{pgp_hex_id}
 */
export const getApiPgpProfilePgpHexId = async (args: GetApiPgpProfilePgpHexIdArgs, options?: GetApiPgpProfilePgpHexIdOptions) => {
const {baseUrl = "https://www.personalgenomes.org.uk/api/v1.3", fetch: fetchFn = fetch} = options ?? {}

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

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