import {z} from 'zod'

export type GetApiV1AuthSamlIdpArgs = {'App-ID': string, 'Auth-Token': string, per_page?: number | undefined, last_id?: string | undefined};

export type GetApiV1AuthSamlIdpOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const identityProviderSchema = z.object({date_created: z.string().optional(), date_modified: z.string().optional(), id: z.string().optional(), public_id: z.string().optional(), saml_settings: z.object({}).optional(), settings: z.object({}), type: z.enum(["onelogin.com", "auth0.com", "okta.com", "GENERIC"]), verbose_logging: z.boolean().optional()});

export const identityProvidersSchema = z.object({first_url: z.string().optional(), last_url: z.string().optional(), next_url: z.string().optional(), objects: z.array(identityProviderSchema).optional(), page: z.number().int().gte(-2147483648).lte(2147483647).optional(), pages: z.number().int().gte(-2147483648).lte(2147483647).optional(), per_page: z.number().int().gte(-2147483648).lte(2147483647).optional(), prev_url: z.string().optional(), total: z.number().int().gte(-9223372036854776000).lte(9223372036854776000).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 list of identity providers
 * 
 * GET /v1/auth/saml/idp/
 */
export const getApiV1AuthSamlIdp = async (args: GetApiV1AuthSamlIdpArgs, options: GetApiV1AuthSamlIdpOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args['App-ID'] != null) headers.set("App-ID", String(args['App-ID']))
if (args['Auth-Token'] != null) headers.set("Auth-Token", String(args['Auth-Token']))
if (args.per_page != null) query.append("per_page", String(args.per_page))
if (args.last_id != null) query.append("last_id", String(args.last_id))

const url = `${baseUrl.replace(/\/+$/, '')}/v1/auth/saml/idp/${query.size > 0 ? `?${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(identityProvidersSchema, await res.json())
};