import {z} from 'zod'

export type CleanupPolicy = 'delete' | 'compact' | 'compact,delete';

export type CleanupPolicyFilter = {oneOf?: Array<CleanupPolicy> | undefined, type: 'CleanupPolicyFilter'};

export type HideInternal = {type: 'HideInternal'};

export type HideStream = {type: 'HideStream'};

export type LabelsFilter = {key: string, values?: Array<string> | undefined, type: 'LabelsFilter'};

export type TagsFilter = {atLeast?: Array<string> | undefined, type: 'TagsFilter'};

export type TopicNameFilter = {contains: string, type: 'TopicNameFilter'};

export type TopicListFilter = CleanupPolicyFilter | HideInternal | HideStream | LabelsFilter | TagsFilter | TopicNameFilter;

export type TopicListSort = 'ByName' | 'ByReplicationFactor' | 'ByNumPartition' | 'ByMessageCount' | 'ByTopicSizeByte' | 'ByCleanupPolicy' | 'ByRetentionTimes' | 'ByMinIsr' | 'ByLastActivityAt' | 'ByProduceRate';

export type TopicListRequest = {page: number, itemsPerPage: number, filter?: Array<TopicListFilter> | undefined, sort: TopicListSort, descSort?: boolean | undefined};

export type CreateApiPublicV1ClustersClusterNameTopicsArgs = {clusterName: string, body: TopicListRequest};

export type CreateApiPublicV1ClustersClusterNameTopicsOptions = {baseUrl: string, httpAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const cleanupPolicy = z.enum(["delete", "compact", "compact,delete"]);

export const tagInfo = z.object({id: z.string(), name: z.string(), color: z.string()});

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

export const indexedTopic = z.object({name: z.string(), replicationFactor: z.number().int(), partitionCount: z.number().int(), recordCount: z.number().int(), topicSize: z.number().int().optional(), cleanupPolicy: cleanupPolicy.optional(), retentionInSize: z.number().int().optional(), retentionInMs: z.number().int().optional(), minIsr: z.number().int().optional(), tags: z.array(tagInfo).optional(), labels: mapLabelKeyString, lastActivityAt: z.string().optional(), produceRate: z.number(), type: z.literal("IndexedTopic")});

export const notIndexedTopic = z.object({name: z.string(), type: z.literal("NotIndexedTopic")});

export const topicResponse = z.discriminatedUnion("type", [indexedTopic, notIndexedTopic]);

export const pageTopicResponse = z.object({data: z.array(topicResponse).optional(), page: z.number().int(), totalPages: z.number().int(), perPage: z.number().int(), totalElements: z.number().int()});

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 topic on a kafka cluster
 * 
 * POST /public/v1/clusters/{clusterName}/topics
 */
export const createApiPublicV1ClustersClusterNameTopics = async (args: CreateApiPublicV1ClustersClusterNameTopicsArgs, options: CreateApiPublicV1ClustersClusterNameTopicsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, httpAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/public/v1/clusters/${encodeURIComponent(String(args.clusterName))}/topics${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(pageTopicResponse, await res.json())
};