import {z} from 'zod'

export type GetApiGatewayV2VirtualClusterVClusterArgs = {vCluster: string, listener?: string | undefined};

export type GetApiGatewayV2VirtualClusterVClusterOptions = {baseUrl: string, httpAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const virtualClusterMetadata = z.object({name: z.string()});

export const mapString = z.record(z.string(), z.string());

export const mapGatewayAuthenticationModeV = z.record(z.string(), mapString);

export const resourceType = z.enum(["ANY", "CLUSTER", "DELEGATION_TOKEN", "GROUP", "TOPIC", "TRANSACTIONAL_ID", "UNKNOWN"]);

export const patternType = z.enum(["ANY", "LITERAL", "MATCH", "PREFIXED", "UNKNOWN"]);

export const resourcePattern = z.object({resourceType: resourceType, name: z.string(), patternType: patternType});

export const aclOperation = z.enum(["ALL", "ALTER", "ALTER_CONFIGS", "ANY", "CLUSTER_ACTION", "CREATE", "CREATE_TOKENS", "DELETE", "DESCRIBE", "DESCRIBE_CONFIGS", "DESCRIBE_TOKENS", "IDEMPOTENT_WRITE", "READ", "UNKNOWN", "WRITE"]);

export const aclPermissionType = z.enum(["ALLOW", "DENY"]);

export const aclBinding = z.object({resourcePattern: resourcePattern, principal: z.string(), host: z.string(), operation: aclOperation, permissionType: aclPermissionType});

export const virtualClusterSpec = z.object({aclEnabled: z.boolean().optional(), aclMode: z.string().optional(), superUsers: z.array(z.string()).optional(), type: z.string().optional(), bootstrapServers: z.string().optional(), clientProperties: mapGatewayAuthenticationModeV.optional(), acls: z.array(aclBinding).optional()});

export const virtualCluster = z.object({kind: z.string(), apiVersion: z.string(), metadata: virtualClusterMetadata, spec: virtualClusterSpec});

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 /gateway/v2/virtual-cluster/{vCluster}
 */
export const getApiGatewayV2VirtualClusterVCluster = async (args: GetApiGatewayV2VirtualClusterVClusterArgs, options: GetApiGatewayV2VirtualClusterVClusterOptions) => {
const {baseUrl, fetch: fetchFn = fetch, httpAuth} = options ?? {}

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

if (args.listener != null) query.append("listener", String(args.listener))
if (httpAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${httpAuth.username}:${httpAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/gateway/v2/virtual-cluster/${encodeURIComponent(String(args.vCluster))}${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(virtualCluster, await res.json())
};