import {z} from 'zod'

export type GroupSearchRequestObject = {schemas: Array<string>, startIndex?: number | undefined, filter?: string | undefined};

export type CreateApiGroupsSearchArgs = {body: GroupSearchRequestObject};

export type CreateApiGroupsSearchOptions = {baseUrl?: string | undefined, OAuth2ClientCredentials?: string | undefined, fetch?: typeof fetch | undefined};

export const groupOb = z.object({displayName: z.string().optional(), meta: z.object({created: z.string().optional(), location: z.string().optional(), lastModified: z.string().optional()}).optional(), members: z.array(z.object({$ref: z.string().optional(), display: z.string().optional(), value: z.string().optional()})).optional(), roles: z.array(z.object({$ref: z.string().optional(), display: z.string().optional(), value: z.string().optional()})).optional(), id: z.string().optional()});

export const groupSearchResponseObject = z.object({totalResults: z.number().int().optional(), startIndex: z.number().int().optional(), itemsPerPage: z.number().int().optional(), schemas: z.array(z.string()).optional(), Resources: z.array(groupOb).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
};

/**
 * Search Groups
 * 
 * POST /Groups/.search
 */
export const createApiGroupsSearch = async (args: CreateApiGroupsSearchArgs, options?: CreateApiGroupsSearchOptions) => {
const {baseUrl = "https://api.asgardeo.io/t//scim2", fetch: fetchFn = fetch, OAuth2ClientCredentials} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/scim+json")
headers.set('accept', "application/scim+json")

if (OAuth2ClientCredentials !== undefined) headers.set('authorization', `Bearer ${OAuth2ClientCredentials}`)

const url = `${baseUrl.replace(/\/+$/, '')}/Groups/.search${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(groupSearchResponseObject, await res.json())
};