import {z} from 'zod'

export type BulkUserOb = {method: string, path: string, bulkId: string, data: {schemas: Array<string>, userName?: string | undefined, password: string}};

export type BulkUserCreateObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkUserOb>};

export type BulkUserUpdateOb = {method: string, path: string, bulkId?: number | undefined, data: {op: string, path: string, value: string}};

export type BulkUserUpdateObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkUserUpdateOb>};

export type BulkUserReplaceOb = {method: string, path: string, bulkId?: number | undefined, data: {schemas: Array<string>, userName: string, name: {givenName?: string | undefined, familyName?: string | undefined}}};

export type BulkUserReplaceObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkUserReplaceOb>};

export type BulkUserDeleteOb = {method: string, path: string};

export type BulkUserDeleteObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkUserDeleteOb>};

export type BulkGroupCreateOb = {method: string, path: string, bulkId?: string | undefined, data: {displayName: string, members?: (Array<{display?: string | undefined, value?: string | undefined}>) | undefined}};

export type BulkGroupCreateObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkGroupCreateOb>};

export type BulkGroupUpdateOb = {method: string, path: string, bulkId?: number | undefined, data: {op: string, path: string, value: Array<{display?: string | undefined, value?: string | undefined}>}};

export type BulkGroupUpdateObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkGroupUpdateOb>};

export type BulkGroupReplaceOb = {method: string, path: string, bulkId?: number | undefined, data: {displayName: string, members: Array<{display: string, value: string}>}};

export type BulkGroupReplaceObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkGroupReplaceOb>};

export type BulkGroupDeleteOb = {method: string, path: string};

export type BulkGroupDeleteObject = {failOnErrors?: number | undefined, schemas: Array<string>, Operations: Array<BulkGroupDeleteOb>};

export type CreateApiBulkArgs = {body: BulkUserCreateObject | BulkUserUpdateObject | BulkUserReplaceObject | BulkUserDeleteObject | BulkGroupCreateObject | BulkGroupUpdateObject | BulkGroupReplaceObject | BulkGroupDeleteObject};

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

export const operationObBulk = z.array(z.object({bulkId: z.string().optional(), method: z.string().optional(), location: z.string().optional(), status: z.object({code: z.number().int().optional()}).optional()}));

export const bulkUserResponseObject = z.object({schemas: z.array(z.string()).optional(), Operations: operationObBulk.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
};

/**
 * Create/Update/Replace/Delete SCIM Resources (Users/ Groups) in Bulk
 * 
 * POST /Bulk
 */
export const createApiBulk = async (args: CreateApiBulkArgs, options?: CreateApiBulkOptions) => {
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 = `${baseUrl.replace(/\/+$/, '')}/Bulk${query.size > 0 ? `?${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(bulkUserResponseObject, await res.json())
};