import {z} from 'zod'

export type AlertKind = 'Alert';

export type AlertMetadataV3 = {name: string, appInstance?: string | undefined, group?: string | undefined, user?: string | undefined};

export type Operator = 'GreaterThan' | 'GreaterThanOrEqual' | 'LessThan' | 'LessThanOrEqual' | 'NotEqual';

export type BrokerMetricType = 'MessageIn' | 'MessageOut' | 'MessageSize' | 'OfflinePartitionCount' | 'PartitionCount' | 'UnderMinIsrPartitionCount' | 'UnderReplicatedPartitionCount';

export type Email1 = {to: string, subject: string, body?: string | undefined, type: 'Email'};

export type Slack1 = {channel: string, type: 'Slack'};

export type Teams = {url: string, type: 'Teams'};

export type HttpMethod = 'DELETE' | 'GET' | 'PATCH' | 'POST' | 'PUT';

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

export type Basic = {username: string, password: string, type: 'Basic'};

export type Bearer = {token: string, type: 'Bearer'};

export type HttpAuthentification = Basic | Bearer;

export type Webhook = {url: string, method: HttpMethod, headers?: MapString | undefined, authentification?: HttpAuthentification | undefined, body?: string | undefined, type: 'Webhook'};

export type Destination = Email1 | Slack1 | Teams | Webhook;

export type BrokerAlertV3 = {cluster: string, threshold: number, operator: Operator, metric: BrokerMetricType, description?: string | undefined, displayName?: string | undefined, destination?: Destination | undefined, disable?: boolean | undefined, type: 'BrokerAlert'};

export type ConsumerGroupMetricType = 'OffsetLag' | 'TimeLag';

export type ConsumerGroupAlertV3 = {cluster: string, consumerGroupName: string, threshold: number, operator: Operator, metric: ConsumerGroupMetricType, description?: string | undefined, displayName?: string | undefined, destination?: Destination | undefined, disable?: boolean | undefined, topicName?: string | undefined, type: 'ConsumerGroupAlert'};

export type DataQualityPolicyAlertV3 = {policyName: string, triggerAfter: number, withinInSeconds: number, description?: string | undefined, displayName?: string | undefined, destination?: Destination | undefined, disable?: boolean | undefined, type: 'DataQualityPolicyAlert'};

export type KafkaConnectMetricType = 'FailedTaskCount';

export type KafkaConnectAlertV3 = {cluster: string, connectName: string, connectorName: string, threshold: number, operator: Operator, metric: KafkaConnectMetricType, description?: string | undefined, displayName?: string | undefined, destination?: Destination | undefined, disable?: boolean | undefined, type: 'KafkaConnectAlert'};

export type TopicMetricType = 'MessageCount' | 'MessageIn' | 'MessageOut' | 'MessageSize';

export type TopicAlertV3 = {cluster: string, topicName: string, threshold: number, operator: Operator, metric: TopicMetricType, description?: string | undefined, displayName?: string | undefined, destination?: Destination | undefined, disable?: boolean | undefined, type: 'TopicAlert'};

export type AlertSpecV3 = BrokerAlertV3 | ConsumerGroupAlertV3 | DataQualityPolicyAlertV3 | KafkaConnectAlertV3 | TopicAlertV3;

export type AlertResourceV3 = {apiVersion: string, kind: AlertKind, metadata: AlertMetadataV3, spec: AlertSpecV3};

export type CreateApiPublicMonitoringV3AlertArgs = {appInstance?: string | undefined, group?: string | undefined, user?: string | undefined, body: AlertResourceV3};

export type CreateApiPublicMonitoringV3AlertOptions = {baseUrl: string, httpAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const alertKind = z.literal("Alert");

export const alertMetadataV3 = z.object({name: z.string(), appInstance: z.string().optional(), group: z.string().optional(), user: z.string().optional()});

export const operator = z.enum(["GreaterThan", "GreaterThanOrEqual", "LessThan", "LessThanOrEqual", "NotEqual"]);

export const brokerMetricType = z.enum(["MessageIn", "MessageOut", "MessageSize", "OfflinePartitionCount", "PartitionCount", "UnderMinIsrPartitionCount", "UnderReplicatedPartitionCount"]);

export const email1 = z.object({to: z.string(), subject: z.string(), body: z.string().optional(), type: z.literal("Email")});

export const slack1 = z.object({channel: z.string(), type: z.literal("Slack")});

export const teams = z.object({url: z.string(), type: z.literal("Teams")});

export const httpMethod = z.enum(["DELETE", "GET", "PATCH", "POST", "PUT"]);

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

export const basic = z.object({username: z.string(), password: z.string(), type: z.literal("Basic")});

export const bearer = z.object({token: z.string(), type: z.literal("Bearer")});

export const httpAuthentification = z.discriminatedUnion("type", [basic, bearer]);

export const webhook = z.object({url: z.string(), method: httpMethod, headers: mapString.optional(), authentification: httpAuthentification.optional(), body: z.string().optional(), type: z.literal("Webhook")});

export const destination = z.discriminatedUnion("type", [email1, slack1, teams, webhook]);

export const brokerAlertV3 = z.object({cluster: z.string(), threshold: z.number().int(), operator: operator, metric: brokerMetricType, description: z.string().optional(), displayName: z.string().optional(), destination: destination.optional(), disable: z.boolean().optional(), type: z.literal("BrokerAlert")});

export const consumerGroupMetricType = z.enum(["OffsetLag", "TimeLag"]);

export const consumerGroupAlertV3 = z.object({cluster: z.string(), consumerGroupName: z.string(), threshold: z.number().int(), operator: operator, metric: consumerGroupMetricType, description: z.string().optional(), displayName: z.string().optional(), destination: destination.optional(), disable: z.boolean().optional(), topicName: z.string().optional(), type: z.literal("ConsumerGroupAlert")});

export const dataQualityPolicyAlertV3 = z.object({policyName: z.string(), triggerAfter: z.number().int().gt(0), withinInSeconds: z.number().int().gt(0), description: z.string().optional(), displayName: z.string().optional(), destination: destination.optional(), disable: z.boolean().optional(), type: z.literal("DataQualityPolicyAlert")});

export const kafkaConnectMetricType = z.literal("FailedTaskCount");

export const kafkaConnectAlertV3 = z.object({cluster: z.string(), connectName: z.string(), connectorName: z.string(), threshold: z.number().int(), operator: operator, metric: kafkaConnectMetricType, description: z.string().optional(), displayName: z.string().optional(), destination: destination.optional(), disable: z.boolean().optional(), type: z.literal("KafkaConnectAlert")});

export const topicMetricType = z.enum(["MessageCount", "MessageIn", "MessageOut", "MessageSize"]);

export const topicAlertV3 = z.object({cluster: z.string(), topicName: z.string(), threshold: z.number().int(), operator: operator, metric: topicMetricType, description: z.string().optional(), displayName: z.string().optional(), destination: destination.optional(), disable: z.boolean().optional(), type: z.literal("TopicAlert")});

export const alertSpecV3 = z.discriminatedUnion("type", [brokerAlertV3, consumerGroupAlertV3, dataQualityPolicyAlertV3, kafkaConnectAlertV3, topicAlertV3]);

export const alertResourceV3 = z.object({apiVersion: z.string(), kind: alertKind, metadata: alertMetadataV3, spec: alertSpecV3});

export const createResult = z.enum(["AlreadyExist", "Created"]);

export const alertCreateResultV3 = z.object({resource: alertResourceV3, createResult: createResult});

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 Alert
 * 
 * POST /public/monitoring/v3/alert
 */
export const createApiPublicMonitoringV3Alert = async (args: CreateApiPublicMonitoringV3AlertArgs, options: CreateApiPublicMonitoringV3AlertOptions) => {
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.appInstance != null) query.append("appInstance", String(args.appInstance))
if (args.group != null) query.append("group", String(args.group))
if (args.user != null) query.append("user", String(args.user))
if (httpAuth !== undefined) headers.set('authorization', `Bearer ${httpAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/public/monitoring/v3/alert${query.size > 0 ? `?${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(alertCreateResultV3, await res.json())
};