import { pick } from 'lodash' ; import { CombinedJobWithStats , Datafeed , Job } from '../types/anomaly_detection_jobs' ; import { resolveMaxTimeInterval } from './job_utils' ; import { isDefined } from '../types/guards' ; import { parseInterval } from './parse_interval' ; import { JobsHealthRuleTestsConfig , JobsHealthTests } from '../types/alerts' ; const narrowBucketLength = 60 ; /**
 * Resolves the lookback interval for the rule
 * using the formula max(2m, 2 * bucket_span) + query_delay + 1s.
 * and rounds up to a whole number of minutes.
 */ export function resolveLookbackInterval ( jobs , datafeeds ) { const bucketSpanInSeconds = Math . ceil ( resolveMaxTimeInterval ( jobs . map ( ( v ) => v . analysis_config . bucket_span ) ) ?? 0 ) ; const queryDelayInSeconds = Math . ceil ( resolveMaxTimeInterval ( datafeeds . map ( ( v ) => v . query_delay ) . filter ( isDefined ) ) ?? 0 ) ; const result = Math . max ( 2 * narrowBucketLength , 2 * bucketSpanInSeconds ) + queryDelayInSeconds + 1 ; return `${ Math . ceil ( result / 60 ) }m` ; } deprecated We should avoid using  CombinedJobWithStats . Replace usages with  resolveLookbackInterval when
 * Kibana API returns mapped job and the datafeed configs.
  export function getLookbackInterval ( jobs ) { return resolveLookbackInterval ( jobs , jobs . map ( ( v ) => v . datafeed_config ) ) ; } export function getTopNBuckets ( job ) { const bucketSpan = parseInterval ( job . analysis_config . bucket_span ) ; if ( bucketSpan === null ) { throw new Error ( 'Unable to resolve a bucket span length' ) ; } return Math . ceil ( narrowBucketLength / bucketSpan . asSeconds ( ) ) ; } const implementedTests = [ 'datafeed' , 'mml' , 'delayedData' , 'errorMessages' ] as JobsHealthTests [ ] ; param config export function getResultJobsHealthRuleConfig ( config ) { const result = { datafeed : { enabled : config ?. datafeed ?. enabled ?? true , } , mml : { enabled : config ?. mml ?. enabled ?? true , } , delayedData : { enabled : config ?. delayedData ?. enabled ?? true , docsCount : config ?. delayedData ?. docsCount ?? 1 , timeInterval : config ?. delayedData ?. timeInterval ?? null , } , behindRealtime : { enabled : config ?. behindRealtime ?. enabled ?? true , } , errorMessages : { enabled : config ?. errorMessages ?. enabled ?? true , } , } ; return pick ( result , implementedTests ) ; }