import {z} from 'zod'

export type GetApiV2IdentitiesIdentifierDisplayMethodArgs = {identifier: string, page?: number | undefined, max_results?: number | undefined, sort?: (Array<'created_at' | '-created_at' | 'name' | '-name' | 'type' | '-type'>) | undefined};

export type GetApiV2IdentitiesIdentifierDisplayMethodOptions = {baseUrl: string, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const displayMethodEntity = z.object({id: z.string(), name: z.string(), url: z.string(), type: z.string()});

export const paginatedMetadata = z.object({total: z.number().int(), page: z.number().int(), max_results: z.number().int()});

export const displayMethodPaginated = z.object({items: z.array(displayMethodEntity), meta: paginatedMetadata});

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 Display Methods
 * 
 * GET /v2/identities/{identifier}/display-method
 */
export const getApiV2IdentitiesIdentifierDisplayMethod = async (args: GetApiV2IdentitiesIdentifierDisplayMethodArgs, options: GetApiV2IdentitiesIdentifierDisplayMethodOptions) => {
const {baseUrl, fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.max_results != null) query.append("max_results", String(args.max_results))
if (args.sort != null) query.append("sort", args.sort.join(','))
if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/identities/${encodeURIComponent(String(args.identifier))}/display-method${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(displayMethodPaginated, await res.json())
};