129 lines
3.7 KiB
TypeScript
129 lines
3.7 KiB
TypeScript
import * as Sequelize from 'sequelize'
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import { database as db } from '../../initializers/database'
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import { AbstractRequestScheduler, RequestsObjects } from './abstract-request-scheduler'
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import {
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REQUESTS_VIDEO_EVENT_LIMIT_PODS,
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REQUESTS_VIDEO_EVENT_LIMIT_PER_POD,
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REQUEST_VIDEO_EVENT_ENDPOINT
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} from '../../initializers'
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import { RequestsVideoEventGrouped } from '../../models'
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import { RequestVideoEventType, RemoteVideoEventRequest, RemoteVideoEventType } from '../../../shared'
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export type RequestVideoEventSchedulerOptions = {
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type: RequestVideoEventType
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videoId: number
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count?: number
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transaction?: Sequelize.Transaction
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}
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class RequestVideoEventScheduler extends AbstractRequestScheduler<RequestsVideoEventGrouped> {
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constructor () {
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super()
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// We limit the size of the requests
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this.limitPods = REQUESTS_VIDEO_EVENT_LIMIT_PODS
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this.limitPerPod = REQUESTS_VIDEO_EVENT_LIMIT_PER_POD
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this.description = 'video event requests'
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}
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getRequestModel () {
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return db.RequestVideoEvent
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}
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getRequestToPodModel () {
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return db.RequestVideoEvent
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}
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buildRequestsObjects (eventRequests: RequestsVideoEventGrouped) {
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const requestsToMakeGrouped: RequestsObjects<RemoteVideoEventRequest> = {}
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/* Example:
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{
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pod1: {
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video1: { views: 4, likes: 5 },
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video2: { likes: 5 }
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}
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}
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*/
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const eventsPerVideoPerPod: {
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[ podId: string ]: {
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[ videoUUID: string ]: {
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views?: number
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likes?: number
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dislikes?: number
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}
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}
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} = {}
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// We group video events per video and per pod
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// We add the counts of the same event types
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for (const toPodId of Object.keys(eventRequests)) {
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for (const eventToProcess of eventRequests[toPodId]) {
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if (!eventsPerVideoPerPod[toPodId]) eventsPerVideoPerPod[toPodId] = {}
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if (!requestsToMakeGrouped[toPodId]) {
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requestsToMakeGrouped[toPodId] = {
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toPod: eventToProcess.pod,
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endpoint: REQUEST_VIDEO_EVENT_ENDPOINT,
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ids: [], // request ids, to delete them from the DB in the future
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datas: [] // requests data
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}
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}
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requestsToMakeGrouped[toPodId].ids.push(eventToProcess.id)
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const eventsPerVideo = eventsPerVideoPerPod[toPodId]
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const uuid = eventToProcess.video.uuid
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if (!eventsPerVideo[uuid]) eventsPerVideo[uuid] = {}
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const events = eventsPerVideo[uuid]
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if (!events[eventToProcess.type]) events[eventToProcess.type] = 0
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events[eventToProcess.type] += eventToProcess.count
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}
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}
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// Now we build our requests array per pod
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for (const toPodId of Object.keys(eventsPerVideoPerPod)) {
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const eventsForPod = eventsPerVideoPerPod[toPodId]
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for (const uuid of Object.keys(eventsForPod)) {
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const eventsForVideo = eventsForPod[uuid]
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for (const eventType of Object.keys(eventsForVideo)) {
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requestsToMakeGrouped[toPodId].datas.push({
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data: {
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uuid,
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eventType: eventType as RemoteVideoEventType,
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count: +eventsForVideo[eventType]
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}
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})
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}
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}
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}
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return requestsToMakeGrouped
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}
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createRequest ({ type, videoId, count, transaction }: RequestVideoEventSchedulerOptions) {
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if (count === undefined) count = 1
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const dbRequestOptions: Sequelize.CreateOptions = {}
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if (transaction) dbRequestOptions.transaction = transaction
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const createQuery = {
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type,
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count,
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videoId
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}
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return db.RequestVideoEvent.create(createQuery, dbRequestOptions)
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}
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}
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// ---------------------------------------------------------------------------
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export {
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RequestVideoEventScheduler
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}
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