Finanzen: Einstellungen, Rechnungen am Kunden, InvoiceNinja aus der Oberflaeche entfernt
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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/**
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* Lädt eine Ressource der Finanzen-API (z. B. getSettings) und hält sie.
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* data bleibt beim erneuten Laden stehen; error ist die Meldung des letzten fehlgeschlagenen Versuchs (leer, solange
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* alles in Ordnung ist). reload() liefert ein Promise, das nie wirft; nur der jüngste Aufruf zählt.
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*/
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export function useFinanceResource(load, fallbackError) {
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const [state, setState] = useState({ data: null, loading: true, error: '' })
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const aliveRef = useRef(true)
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const seqRef = useRef(0)
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const loadRef = useRef(load)
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loadRef.current = load
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const reload = useCallback(async () => {
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const mine = ++seqRef.current
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const current = () => aliveRef.current && mine === seqRef.current
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setState((s) => ({ ...s, loading: true, error: '' }))
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try {
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const data = await loadRef.current()
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if (current()) setState({ data: data && typeof data === 'object' ? data : {}, loading: false, error: '' })
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} catch (err) {
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if (current()) setState((s) => ({ ...s, loading: false, error: err?.message || fallbackError }))
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}
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}, [fallbackError])
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useEffect(() => {
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aliveRef.current = true
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reload()
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return () => {
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aliveRef.current = false
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}
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}, [reload])
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return { ...state, reload }
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}
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