import {z} from 'zod'

export type GetApiAuthoringV1ElementdefsIdArgs = {id: string, fields?: string | undefined, include?: string | undefined, 'If-None-Match'?: string | undefined};

export type GetApiAuthoringV1ElementdefsIdOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const getApiAuthoringV1ElementdefsIdResponse = z.object({id: z.string().optional(), rev: z.string().optional(), name: z.string().min(1).optional(), description: z.string().optional(), classification: z.literal("element-definition").optional(), creatorId: z.string().min(1).optional(), created: z.string().min(1).optional(), lastModifierId: z.string().min(1).optional(), lastModified: z.string().min(1).optional(), tags: z.array(z.string()).optional(), status: z.enum(["draft", "ready", "retired"]).optional(), elementFragment: z.object({key: z.string().optional(), type: z.string().optional()}).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
};

/**
 * Retrieve an existing element definition.
 * 
 * GET /authoring/v1/elementdefs/{id}
 */
export const getApiAuthoringV1ElementdefsId = async (args: GetApiAuthoringV1ElementdefsIdArgs, options: GetApiAuthoringV1ElementdefsIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.fields != null) query.append("fields", String(args.fields))
if (args.include != null) query.append("include", String(args.include))
if (args['If-None-Match'] != null) headers.set("If-None-Match", String(args['If-None-Match']))

const url = `${baseUrl.replace(/\/+$/, '')}/authoring/v1/elementdefs/${encodeURIComponent(String(args.id))}${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(getApiAuthoringV1ElementdefsIdResponse, await res.json())
};