import {z} from 'zod'

export type GetApiProjectProjectServiceServiceNameKafkaSchemaConfigArgs = {project: string, service_name: string};

export type GetApiProjectProjectServiceServiceNameKafkaSchemaConfigOptions = {baseUrl?: string | undefined, tokenAuth?: string | undefined, oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const serviceSchemaRegistryGlobalConfigGetResponse = z.object({compatibilityLevel: z.enum(["BACKWARD", "BACKWARD_TRANSITIVE", "FORWARD", "FORWARD_TRANSITIVE", "FULL", "FULL_TRANSITIVE", "NONE"]), errors: z.array(z.object({message: z.string(), more_info: z.string().optional(), status: z.number().int()})).optional(), message: z.string().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 global configuration for Schema Registry
 * 
 * GET /project/{project}/service/{service_name}/kafka/schema/config
 */
export const getApiProjectProjectServiceServiceNameKafkaSchemaConfig = async (args: GetApiProjectProjectServiceServiceNameKafkaSchemaConfigArgs, options?: GetApiProjectProjectServiceServiceNameKafkaSchemaConfigOptions) => {
const {baseUrl = "https://api.aiven.io/v1", fetch: fetchFn = fetch, tokenAuth, oauth2} = options ?? {}

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

if (tokenAuth !== undefined) headers.set('authorization', `Bearer ${tokenAuth}`)
if (oauth2 !== undefined) headers.set('authorization', `Bearer ${oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/project/${encodeURIComponent(String(args.project))}/service/${encodeURIComponent(String(args.service_name))}/kafka/schema/config${query.size > 0 ? `?${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(serviceSchemaRegistryGlobalConfigGetResponse, await res.json())
};