Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | 55x 55x 55x 55x 2x 1810x 1810x 4552x 43786x 22596x 22596x 22596x 18204x 18204x 18204x 8944x 4552x 2286x 7x 16x 2266x 2266x 13x 10x 1810x 1810x 300x 300x 16x 10x 1820x 300x 4290x 6x 300x 10x 1810x 7x 7x 5x 1x 5x 7x 5x 10x 5x 7x | /**
* @see frontend/docs/UX/layer-contracts/L1-data-layer.md §3.7
*
* Data-age -tarkistus non-SSE-näkymille. Palauttaa datan iän
* millisekunteina ja binäärin stale-tilan.
*
* Ikäkynnys = gcTime - retention_margin = 30 min - 5 min = 25 min
*
* Ei renderöi mitään — puhdas hook.
*/
import { useState, useEffect } from 'react'
import { useQueryClient } from '@tanstack/react-query'
import type { EntityPath } from './contracts'
import type { QueryParams } from '../interfaces'
import { normalizeFilters } from './mutationQueue'
const GC_TIME_MS = 30 * 60 * 1000
const RETENTION_MARGIN_MS = 5 * 60 * 1000
const AGE_THRESHOLD_MS = GC_TIME_MS - RETENTION_MARGIN_MS
const TICK_INTERVAL_MS = 60_000
expIort interface DataAgeResult {
ageMs: number
isStale: boolean
}
export function useDataAge(
entityPath: EntityPath,
normalizedParams?: QueryParams,
): DataAgeResult {
const queryClient = useQueryClient()
const normParams = normalizedParams ? normalizeFilters(normalizedParams) : null
function compute(): DataAgeResult {
const queries = queryClient
.getQueryCache()
.getAll()
.filter((q) => {
if (q.queryKey[0] !== entityPath) return false
Eif (!normParams) return true
const keyParams = q.queryKey[1] as QueryParams | undefined
if (!keyParams) return true
const normJson = JSON.stringify(normParams)
const keyJson = JSON.stringify(keyParams)
return normJson === keyJson
})
const timestamps = queries
.map((q) => q.state.dataUpdatedAt)
.filter((t): t is number => t > 0)
if (timestamps.length === 0) {
return { ageMs: Infinity, isStale: true }
}
const ageMs = Date.now() - Math.max(...timestamps)
return { ageMs, isStale: ageMs > AGE_THRESHOLD_MS }
}
const [result, setResult] = useState<DataAgeResult>(compute)
useEffect(() => {
const id = setInterval(() => {
setResult(compute())
}, TICK_INTERVAL_MS)
return () => clearInterval(id)
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [entityPath, normalizedParams])
useEffect(() => {
const unsubscribe = queryClient.getQueryCache().subscribe(() => {
setResult(compute())
})
return unsubscribe
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [entityPath, normalizedParams])
return result
}
|