import {z} from 'zod'

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

export type CreateTopicReq = {topic_name: string, num_partitions?: number | undefined, replication_factor?: (number | null) | undefined, cleanup_policy?: (CleanupPolicyEnum | null) | undefined, min_insync_replicas?: (number | null) | undefined, retention_ms?: (number | null) | undefined, retention_bytes?: (number | null) | undefined, max_message_bytes?: (number | null) | undefined, custom_configs?: ({[key: string]: string} | null) | undefined, tags?: (Array<string> | null) | undefined} | {[key: string]: unknown};

export type CreateApiTopicsArgs = {body: CreateTopicReq};

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

export const topicDetailsEntityTypeEnum = z.enum(["sources", "destinations", "transforms", "pipelines", "manual", "agents"]);

export const sourceConnectorEnum = z.enum(["alloydb", "elasticsearch", "mongodbhosted", "mongodb", "sqlserveraws", "mariadb", "mysql", "postgresql", "oracle", "documentdb", "oracleaws", "kafkadirect", "redis", "s3", "webhook", "zendesk_webhook", "salesforce_webhook", "shopify_webhook", "stripe_webhook", "db2", "dynamodb", "vitess", "planetscale", "supabase", "informix", "hubspot", "salesforce", "netsuite", "stripe", "google_analytics", "facebook_ads", "google_ads", "zendesk", "pipedrive", "freshdesk", "shopify"]);

export const destinationConnectorEnum = z.enum(["azblob", "clickhouse", "databricks", "mysql", "postgresql", "redshift", "s3", "r2", "gcs", "motherduck", "weaviate", "pinecone", "httpsink", "sqlserver", "bigquery", "cockroachdb", "db2", "oracle", "redis", "snowflake", "starburst", "kafka", "kafkadirect", "iceberg"]);

export const transformsLibraryEnum = z.enum(["fan_out", "sql_join", "enrich", "enrich_async", "map_filter", "toast_handling", "un_nesting", "rollup", "topic_router"]);

export const topicDetailsEntity = z.object({entity_type: topicDetailsEntityTypeEnum, entity_id: z.string(), name: z.string(), connector: z.union([sourceConnectorEnum, destinationConnectorEnum, transformsLibraryEnum, z.string()]), topic_ids: z.array(z.string()), topic_db_ids: z.array(z.string()), display_name: z.string(), filtered_snapshot_language: z.string().nullable().optional()}).and(z.record(z.string(), z.unknown()));

export const serializationFormatEnum = z.enum(["avro", "json", "json_schema", "protobuf", "string", "bytearray", "unknown"]);

export const topicSerialization = z.object({key_format: serializationFormatEnum.optional(), value_format: serializationFormatEnum.optional(), key_converter: z.string().nullable().optional(), value_converter: z.string().nullable().optional(), schema_registry_enabled: z.boolean().optional()}).and(z.record(z.string(), z.unknown()));

export const createTopicWarning = z.object({message: z.string(), level: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const createTopicRes = z.object({id: z.string(), name: z.string(), entity: topicDetailsEntity, prefix: z.string().nullable().optional(), serialization: topicSerialization.nullable().optional(), num_partitions: z.number().int(), replication_factor: z.number().int(), warnings: z.array(createTopicWarning).optional()}).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
};

/**
 * Create a new Kafka topic
 * 
 * POST /topics
 */
export const createApiTopics = async (args: CreateApiTopicsArgs, options?: CreateApiTopicsOptions) => {
const {baseUrl = "https://api.streamkap.com", fetch: fetchFn = fetch, FronteggHTTPAuthentication} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/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(createTopicRes, await res.json())
};