Files
huly-platform/packages/platform/src/event.ts
T
2023-04-20 17:11:22 +07:00

98 lines
2.6 KiB
TypeScript

//
// Copyright © 2020, 2021 Anticrm Platform Contributors.
// Copyright © 2021 Hardcore Engineering Inc.
//
// Licensed under the Eclipse Public License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License. You may
// obtain a copy of the License at https://www.eclipse.org/legal/epl-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//
// See the License for the specific language governing permissions and
// limitations under the License.
//
import { Status, OK, unknownError, Severity } from './status'
/**
* @public
*/
export const PlatformEvent = 'platform-event'
/**
* @public
*/
export type EventListener = (event: string, data: any) => Promise<void>
const eventListeners = new Map<string, EventListener[]>()
/**
* @public
* @param event -
* @param listener -
*/
export function addEventListener (event: string, listener: EventListener): void {
const listeners = eventListeners.get(event)
if (listeners !== undefined) {
listeners.push(listener)
} else {
eventListeners.set(event, [listener])
}
}
/**
* @public
* @param event -
* @param listener -
*/
export function removeEventListener (event: string, listener: EventListener): void {
const listeners = eventListeners.get(event)
if (listeners !== undefined) {
listeners.splice(listeners.indexOf(listener), 1)
}
}
/**
* @public
*/
export async function broadcastEvent (event: string, data: any): Promise<void> {
const listeners = eventListeners.get(event)
if (listeners !== undefined) {
const promises = listeners.map(async (listener) => await listener(event, data))
return await (Promise.all(promises) as unknown as Promise<void>)
}
}
/**
* @public
* @param status -
* @returns
*/
export async function setPlatformStatus (status: Status): Promise<void> {
if (status.severity === Severity.ERROR) {
console.trace('Platform Error Status', status)
}
return await broadcastEvent(PlatformEvent, status)
}
/**
* @public
* @param status -
* @param promise -
* @returns
*/
export async function monitor<T> (status: Status, promise: Promise<T>): Promise<T> {
void setPlatformStatus(status) // eslint-disable-line no-void
try {
const result = await promise
void setPlatformStatus(OK) // eslint-disable-line no-void
return result
} catch (err) {
void setPlatformStatus(unknownError(err)) // eslint-disable-line no-void
console.error(err)
throw err
}
}