Workers P2: Bühne (StrictMode-fest) und Board mit Pausenschalter
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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import { useCallback, useEffect, useRef, useState } from 'react'
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import Button from '../ui/Button'
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import EmptyState from '../ui/EmptyState'
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import { useWorkerTrace, useWorkersFeed } from '../../hooks/useWorkersFeed'
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import { indexWorkers, reduceEvents } from '../../lib/workersEvents'
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import { pauseLabel } from '../../lib/workersView'
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import WorkerCard from './WorkerCard'
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import WorkerList from './WorkerList'
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import WorkersKpis from './WorkersKpis'
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import WorkersSettingsDialog from './WorkersSettingsDialog'
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import WorkersStage from './WorkersStage'
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const RUNNING_TEXT = 'Läuft'
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const PAUSED_TEXT = 'Angehalten: Es wird nichts gesendet und nichts gebaut.'
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const PAUSE_FAILED_TEXT = 'Umschalten fehlgeschlagen.'
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const NO_REASON_TEXT = 'Grund nicht angegeben'
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// Grund der Notbremse für den Satz „Versand gestoppt: <Grund>. …“: getrimmt, ohne abschließende Punkte (sonst entstünde „..“)
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function haltReasonOf(reason) {
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const text = typeof reason === 'string' ? reason.trim().replace(/[.\s]+$/, '') : ''
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return text || NO_REASON_TEXT
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}
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// Inhalt des Reiters „Hochhaus“: Kopfzeile mit Pausenschalter, Kennzahlen, Hochhaus mit Seitenspalte (Karte und Liste).
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// Ohne Auth-Bezug: isAdmin kommt von der Seite. stageRef ist optional (nur der Prüfstand reicht eine durch); ohne eins legt das Board
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// selbst eins an, damit pushEvents die Bühne immer erreicht.
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export default function WorkersBoard({ api, isAdmin, stageRef }) {
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const ownRef = useRef(null)
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const ref = stageRef ?? ownRef
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const aliveRef = useRef(true)
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const [workers, setWorkers] = useState({})
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const [selectedId, setSelectedId] = useState(null)
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const [settingsOpen, setSettingsOpen] = useState(false)
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const [pausing, setPausing] = useState(false)
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const [pauseError, setPauseError] = useState('')
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useEffect(() => {
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aliveRef.current = true
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return () => { aliveRef.current = false }
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}, [])
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// Neue Ereignisse: Tabelle fortschreiben und der Bühne vorspielen (die Bühne kennt den Rückstau selbst)
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const onEvents = useCallback((events) => {
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setWorkers((w) => reduceEvents(w, events))
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if (ref.current) ref.current.pushEvents(events)
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}, [ref])
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const { state, error, loaded, refresh } = useWorkersFeed(api, { onEvents })
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useEffect(() => {
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if (state) setWorkers(indexWorkers(state))
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}, [state])
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const { trace, loading: traceLoading, error: traceError } = useWorkerTrace(api, selectedId)
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if (!loaded || !state) {
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if (error) {
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return (
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<EmptyState
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title="Der Hustler-Dienst ist noch nicht erreichbar"
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hint={<p>{error}</p>}
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action={<Button type="button" onClick={() => refresh()}>Neu laden</Button>}
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/>
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)
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}
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return <div className="loading">Wird geladen …</div>
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}
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const paused = Boolean(state.paused)
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const worker = selectedId && Object.hasOwn(workers, selectedId) ? workers[selectedId] : undefined
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// Pause für alle Mitarbeiter: der Dienst bekommt den Zielwert, danach wird der Zustand sofort neu geholt
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const togglePause = async () => {
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if (pausing) return
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setPausing(true)
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setPauseError('')
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try {
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await api.pause(!paused)
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refresh()
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} catch (err) {
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if (aliveRef.current) setPauseError(err?.message || PAUSE_FAILED_TEXT)
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}
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if (aliveRef.current) setPausing(false)
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}
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return (
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<>
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<div className="wk-toolbar">
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<span className="wk-status">{paused ? PAUSED_TEXT : RUNNING_TEXT}</span>
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<span className="grow" />
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<Button type="button" onClick={togglePause} disabled={pausing}>{pauseLabel(paused)}</Button>
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{isAdmin && <Button type="button" onClick={() => setSettingsOpen(true)}>Einstellungen</Button>}
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</div>
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{pauseError && <div className="msg err" role="alert">{pauseError}</div>}
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{state.sendingHalted === true && (
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<div className="msg err" role="alert">
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Versand gestoppt: {haltReasonOf(state.sendingHaltedReason)}. Ein Admin kann ihn in den Einstellungen freigeben.
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</div>
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)}
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{error && <div className="msg warn" role="status">Verbindung gestört: {error} Es wird weiter versucht.</div>}
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<WorkersKpis kpis={state.kpis} />
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<div className="wk-main">
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<WorkersStage ref={ref} state={state} selectedId={selectedId} onSelect={setSelectedId} />
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<div className="wk-side">
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<WorkerCard
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workerId={selectedId}
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worker={worker}
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trace={trace}
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loading={traceLoading}
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error={traceError}
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onClose={() => setSelectedId(null)}
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/>
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<WorkerList workers={workers} selectedId={selectedId} onSelect={setSelectedId} />
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</div>
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</div>
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{isAdmin && settingsOpen && (
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<WorkersSettingsDialog api={api} onClose={() => setSettingsOpen(false)} onSaved={() => refresh()} />
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)}
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</>
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)
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}
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