import {z} from 'zod'

export type GetApiSchemaRegistrySubjectsArgs = {page?: number | undefined, page_size?: number | undefined, include_metadata?: boolean | undefined, search?: (string | null) | undefined, schema_type?: (string | null) | undefined};

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

export const schemaSubjectListItem = z.object({subject: z.string(), schema_type: z.string(), latest_version: z.number().int(), latest_schema_id: z.number().int()}).and(z.record(z.string(), z.unknown()));

export const schemaSubjectsPaginatedRes = z.object({page: z.number().int(), page_size: z.number().int(), total: z.number().int(), result: z.union([z.array(z.string()), z.array(schemaSubjectListItem)])}).and(z.record(z.string(), z.unknown()));

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
};

/**
 * List Schema Subjects
 * 
 * GET /schema-registry/subjects
 */
export const getApiSchemaRegistrySubjects = async (args: GetApiSchemaRegistrySubjectsArgs, options?: GetApiSchemaRegistrySubjectsOptions) => {
const {baseUrl = "https://api.streamkap.com", fetch: fetchFn = fetch, FronteggHTTPAuthentication} = options ?? {}

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

if (args.page != null) query.append("page", String(args.page))
if (args.page_size != null) query.append("page_size", String(args.page_size))
if (args.include_metadata != null) query.append("include_metadata", String(args.include_metadata))
if (args.search != null) query.append("search", String(args.search))
if (args.schema_type != null) query.append("schema_type", String(args.schema_type))
if (FronteggHTTPAuthentication !== undefined) headers.set('authorization', `Bearer ${FronteggHTTPAuthentication}`)

const url = `${baseUrl.replace(/\/+$/, '')}/schema-registry/subjects${query.size > 0 ? `?${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(schemaSubjectsPaginatedRes, await res.json())
};