import {z} from 'zod'

export type SubjectKind = 'Subject';

export type MapLabelKeyString = {[key: string]: string};

export type SubjectMetadata = {name: string, cluster: string, labels?: MapLabelKeyString | undefined};

export type SchemaFormat = 'AVRO' | 'JSON' | 'PROTOBUF';

export type SchemaCompatibility = 'BACKWARD' | 'BACKWARD_TRANSITIVE' | 'FORWARD' | 'FORWARD_TRANSITIVE' | 'FULL' | 'FULL_TRANSITIVE' | 'NONE';

export type SchemaReference = {name: string, subject: string, version: number};

export type SubjectSpec = {format: SchemaFormat, compatibility?: SchemaCompatibility | undefined, schema: string, id?: number | undefined, version?: number | undefined, references?: Array<SchemaReference> | undefined, guid?: string | undefined};

export type SubjectResourceV2 = {apiVersion: string, kind: SubjectKind, metadata: SubjectMetadata, spec: SubjectSpec};

export type UpdateApiPublicKafkaV2ClusterClusterSubjectArgs = {cluster: string, dryMode?: boolean | undefined, body: SubjectResourceV2};

export type UpdateApiPublicKafkaV2ClusterClusterSubjectOptions = {baseUrl: string, httpAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const subjectKind = z.literal("Subject");

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

export const subjectMetadata = z.object({name: z.string(), cluster: z.string(), labels: mapLabelKeyString.optional()});

export const schemaFormat = z.enum(["AVRO", "JSON", "PROTOBUF"]);

export const schemaCompatibility = z.enum(["BACKWARD", "BACKWARD_TRANSITIVE", "FORWARD", "FORWARD_TRANSITIVE", "FULL", "FULL_TRANSITIVE", "NONE"]);

export const schemaReference = z.object({name: z.string(), subject: z.string(), version: z.number().int()});

export const subjectSpec = z.object({format: schemaFormat, compatibility: schemaCompatibility.optional(), schema: z.string(), id: z.number().int().optional(), version: z.number().int().optional(), references: z.array(schemaReference).optional(), guid: z.string().optional()});

export const subjectResourceV2 = z.object({apiVersion: z.string(), kind: subjectKind, metadata: subjectMetadata, spec: subjectSpec});

export const upsertResult = z.enum(["Created", "Updated", "NotChanged"]);

export const subjectApplyResultV2 = z.object({resource: subjectResourceV2, upsertResult: upsertResult});

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 or update a Subject
 * 
 * PUT /public/kafka/v2/cluster/{cluster}/subject
 */
export const updateApiPublicKafkaV2ClusterClusterSubject = async (args: UpdateApiPublicKafkaV2ClusterClusterSubjectArgs, options: UpdateApiPublicKafkaV2ClusterClusterSubjectOptions) => {
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 (args.dryMode != null) query.append("dryMode", String(args.dryMode))
if (httpAuth !== undefined) headers.set('authorization', `Bearer ${httpAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/public/kafka/v2/cluster/${encodeURIComponent(String(args.cluster))}/subject${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "PUT", 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(subjectApplyResultV2, await res.json())
};