import {z} from 'zod'

export type UserSourceDynamicTenantConfig = {tenantIdFieldName: string, tenantResolverType: 'dynamic'};

export type UserSourceStaticTenantConfig = {tenantId: string, tenantResolverType: 'static'};

export type UserSourceNewTenantConfig = {tenantResolverType: 'new'};

export type ExternalCognitoUserSourceConfig = {syncOnLogin: boolean, isMigrated: boolean, region: string, clientId: string, userPoolId: string, accessKeyId: string, secretAccessKey: string, clientSecret?: string | undefined, tenantConfig: UserSourceDynamicTenantConfig | UserSourceStaticTenantConfig | UserSourceNewTenantConfig};

export type CreateCognitoExternalUserSourceRequestDTO = {name: string, configuration: ExternalCognitoUserSourceConfig, appIds?: Array<string> | undefined, index: number, description?: string | undefined};

export type CreateApiResourcesUserSourcesV1ExternalCognitoArgs = {body: CreateCognitoExternalUserSourceRequestDTO};

export type CreateApiResourcesUserSourcesV1ExternalCognitoOptions = {baseUrl?: string | undefined, bearer?: string | undefined, fetch?: typeof fetch | undefined};

export const createUserSourceResponse = z.object({id: z.string(), name: z.string(), type: z.string(), appIds: z.array(z.string()), description: z.string(), index: z.number()});

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 Cognito external user source
 * 
 * POST /resources/user-sources/v1/external/cognito
 */
export const createApiResourcesUserSourcesV1ExternalCognito = async (args: CreateApiResourcesUserSourcesV1ExternalCognitoArgs, options?: CreateApiResourcesUserSourcesV1ExternalCognitoOptions) => {
const {baseUrl = "http://localhost:8181", fetch: fetchFn = fetch, bearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/resources/user-sources/v1/external/cognito${query.size > 0 ? `?${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(createUserSourceResponse, await res.json())
};