| 1 | import type { AbstractUIService } from '../ui-server/ui-services/AbstractUIService.js' |
| 2 | |
| 3 | import { |
| 4 | type BroadcastChannelResponse, |
| 5 | type BroadcastChannelResponsePayload, |
| 6 | type MessageEvent, |
| 7 | type ResponsePayload, |
| 8 | ResponseStatus, |
| 9 | } from '../../types/index.js' |
| 10 | import { logger } from '../../utils/index.js' |
| 11 | import { WorkerBroadcastChannel } from './WorkerBroadcastChannel.js' |
| 12 | |
| 13 | const moduleName = 'UIServiceWorkerBroadcastChannel' |
| 14 | |
| 15 | interface Responses { |
| 16 | responses: BroadcastChannelResponsePayload[] |
| 17 | responsesExpected: number |
| 18 | responsesReceived: number |
| 19 | } |
| 20 | |
| 21 | export class UIServiceWorkerBroadcastChannel extends WorkerBroadcastChannel { |
| 22 | private readonly responses: Map<string, Responses> |
| 23 | private readonly uiService: AbstractUIService |
| 24 | |
| 25 | constructor (uiService: AbstractUIService) { |
| 26 | super() |
| 27 | this.uiService = uiService |
| 28 | this.onmessage = this.responseHandler.bind(this) as (message: unknown) => void |
| 29 | this.onmessageerror = this.messageErrorHandler.bind(this) as (message: unknown) => void |
| 30 | this.responses = new Map<string, Responses>() |
| 31 | } |
| 32 | |
| 33 | private buildResponsePayload (uuid: string): ResponsePayload { |
| 34 | const responsesStatus = |
| 35 | this.responses |
| 36 | .get(uuid) |
| 37 | ?.responses.every(({ status }) => status === ResponseStatus.SUCCESS) === true |
| 38 | ? ResponseStatus.SUCCESS |
| 39 | : ResponseStatus.FAILURE |
| 40 | return { |
| 41 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion, @typescript-eslint/no-non-null-asserted-optional-chain |
| 42 | hashIdsSucceeded: this.responses |
| 43 | .get(uuid) |
| 44 | ?.responses.map(({ hashId, status }) => { |
| 45 | if (hashId != null && status === ResponseStatus.SUCCESS) { |
| 46 | return hashId |
| 47 | } |
| 48 | return undefined |
| 49 | }) |
| 50 | .filter(hashId => hashId != null)!, |
| 51 | status: responsesStatus, |
| 52 | ...(responsesStatus === ResponseStatus.FAILURE && { |
| 53 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion, @typescript-eslint/no-non-null-asserted-optional-chain |
| 54 | hashIdsFailed: this.responses |
| 55 | .get(uuid) |
| 56 | ?.responses.map(({ hashId, status }) => { |
| 57 | if (hashId != null && status === ResponseStatus.FAILURE) { |
| 58 | return hashId |
| 59 | } |
| 60 | return undefined |
| 61 | }) |
| 62 | .filter(hashId => hashId != null)!, |
| 63 | }), |
| 64 | ...(responsesStatus === ResponseStatus.FAILURE && { |
| 65 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion, @typescript-eslint/no-non-null-asserted-optional-chain |
| 66 | responsesFailed: this.responses |
| 67 | .get(uuid) |
| 68 | ?.responses.map(response => { |
| 69 | if (response.status === ResponseStatus.FAILURE) { |
| 70 | return response |
| 71 | } |
| 72 | return undefined |
| 73 | }) |
| 74 | .filter(response => response != null)!, |
| 75 | }), |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | private messageErrorHandler (messageEvent: MessageEvent): void { |
| 80 | logger.error( |
| 81 | `${this.uiService.logPrefix(moduleName, 'messageErrorHandler')} Error at handling message:`, |
| 82 | messageEvent |
| 83 | ) |
| 84 | } |
| 85 | |
| 86 | private responseHandler (messageEvent: MessageEvent): void { |
| 87 | const validatedMessageEvent = this.validateMessageEvent(messageEvent) |
| 88 | if (validatedMessageEvent === false) { |
| 89 | return |
| 90 | } |
| 91 | if (this.isRequest(validatedMessageEvent.data)) { |
| 92 | return |
| 93 | } |
| 94 | const [uuid, responsePayload] = validatedMessageEvent.data as BroadcastChannelResponse |
| 95 | if (!this.responses.has(uuid)) { |
| 96 | this.responses.set(uuid, { |
| 97 | responses: [responsePayload], |
| 98 | responsesExpected: this.uiService.getBroadcastChannelExpectedResponses(uuid), |
| 99 | responsesReceived: 1, |
| 100 | }) |
| 101 | } else if ( |
| 102 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 103 | this.responses.get(uuid)!.responsesReceived <= this.responses.get(uuid)!.responsesExpected |
| 104 | ) { |
| 105 | // eslint-disable-next-line @typescript-eslint/no-non-null-assertion |
| 106 | ++this.responses.get(uuid)!.responsesReceived |
| 107 | this.responses.get(uuid)?.responses.push(responsePayload) |
| 108 | } |
| 109 | if ( |
| 110 | this.responses.get(uuid)?.responsesReceived === this.responses.get(uuid)?.responsesExpected |
| 111 | ) { |
| 112 | this.uiService.sendResponse(uuid, this.buildResponsePayload(uuid)) |
| 113 | this.responses.delete(uuid) |
| 114 | this.uiService.deleteBroadcastChannelRequest(uuid) |
| 115 | } |
| 116 | } |
| 117 | } |