feat(robustheit): optimistische Nebenläufigkeit (featuresVersion + Konflikt-Erkennung)
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Verhindert stilles Überschreiben neuerer Änderungen durch veralteten Stand (z.B. nach Offline-Reconnect oder Lock-Ablauf bei Multi-Device). - Project.featuresVersion (Schema + Auto-Migration), pro Features-Speichern +1 - Features-PUT: optimistischer Lock in interaktiver Transaktion (updateMany WHERE featuresVersion=baseVersion -> atomar; count=0 => 409 Konflikt) - Bei Konflikt liefert der Server den aktuellen Stand zurück (409 + features + version) - Client sendet baseVersion (Auto-Save, manuell, Beacon, Offline-Queue), übernimmt bei 409 den Server-Stand und warnt den Nutzer (statt still zu überschreiben) - Offline-Queue verwirft konfligierende 4xx (kein Clobber beim Reconnect) - Transaktions-Timeout 15s für grosse Zeichnungen auf langsamer DB Version 1.4.11 Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
@@ -58,8 +58,10 @@ Legende Aufwand: 🟢 klein · 🟡 mittel · 🔴 gross
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- [x] localStorage-Features pro Projekt (`lageplan-features-<id>`) statt globalem Key
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- [x] localStorage-Features pro Projekt (`lageplan-features-<id>`) statt globalem Key
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- [x] Sync-Queue verwirft dauerhafte 4xx-Fehler (kein Endlos-Retry/verstopfte Queue)
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- [x] Sync-Queue verwirft dauerhafte 4xx-Fehler (kein Endlos-Retry/verstopfte Queue)
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- [x] `beforeunload` persistiert auch leere Listen (gelöschte Elemente gehen nicht verloren)
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- [x] `beforeunload` persistiert auch leere Listen (gelöschte Elemente gehen nicht verloren)
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- Offen (🟡 5): Multi-Device-Versionierung — Editor-Lock ist pro Session, nicht pro User;
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- [x] **5: Optimistische Nebenläufigkeit** — `Project.featuresVersion` + Versions-Check
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Last-Writer-Wins ohne `updatedAt`-Check. Eigener grösserer Schritt.
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beim Speichern. Ein veralteter (z.B. offline) Stand überschreibt neuere Änderungen nicht
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mehr still, sondern erzeugt 409 → Client übernimmt Server-Stand + Warnung. Offline-Queue
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verwirft konfliktierende 4xx. (Merge pro Element / echtes Co-Drawing weiterhin offen.)
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## Zusatz – Leitungsrechner professionalisiert ✅
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## Zusatz – Leitungsrechner professionalisiert ✅
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@@ -1,6 +1,6 @@
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{
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{
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"name": "lageplan",
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"name": "lageplan",
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"version": "1.4.10",
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"version": "1.4.11",
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"description": "Feuerwehr Lageplan - Krokier-App für Einsatzdokumentation",
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"description": "Feuerwehr Lageplan - Krokier-App für Einsatzdokumentation",
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"private": true,
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"private": true,
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"scripts": {
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"scripts": {
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@@ -73,6 +73,7 @@ async function migrate() {
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "journalfuehrer" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "journalfuehrer" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "mode" TEXT NOT NULL DEFAULT 'EINSATZ'`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "mode" TEXT NOT NULL DEFAULT 'EINSATZ'`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "exerciseEvaluation" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "exerciseEvaluation" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "featuresVersion" INTEGER NOT NULL DEFAULT 0`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingById" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingById" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingUserName" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingUserName" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingSessionId" TEXT`,
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`ALTER TABLE projects ADD COLUMN IF NOT EXISTS "editingSessionId" TEXT`,
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@@ -166,6 +166,10 @@ model Project {
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mapCenter Json @default("{\"lng\": 8.5417, \"lat\": 47.3769}")
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mapCenter Json @default("{\"lng\": 8.5417, \"lat\": 47.3769}")
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mapZoom Float @default(15)
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mapZoom Float @default(15)
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isLocked Boolean @default(false)
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isLocked Boolean @default(false)
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// Optimistische Nebenläufigkeit: wird bei jedem Features-Speichern hochgezählt.
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// Verhindert, dass ein veralteter (z.B. offline zwischengespeicherter) Stand
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// neuere Änderungen stillschweigend überschreibt.
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featuresVersion Int @default(0)
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// Live editing lock (session-based for same-account multi-device)
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// Live editing lock (session-based for same-account multi-device)
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editingById String?
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editingById String?
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@@ -20,12 +20,15 @@ export async function GET(
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return NextResponse.json({ error: 'Projekt nicht gefunden' }, { status: 404 })
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return NextResponse.json({ error: 'Projekt nicht gefunden' }, { status: 404 })
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}
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}
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const features = await (prisma as any).feature.findMany({
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const [features, proj] = await Promise.all([
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(prisma as any).feature.findMany({
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where: { projectId: id },
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where: { projectId: id },
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orderBy: { createdAt: 'asc' },
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orderBy: { createdAt: 'asc' },
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})
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}),
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(prisma as any).project.findUnique({ where: { id }, select: { featuresVersion: true } }),
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])
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return NextResponse.json({ features })
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return NextResponse.json({ features, featuresVersion: proj?.featuresVersion ?? 0 })
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} catch (error) {
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} catch (error) {
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console.error('Error fetching features:', error)
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console.error('Error fetching features:', error)
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return NextResponse.json({ error: 'Serverfehler' }, { status: 500 })
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return NextResponse.json({ error: 'Serverfehler' }, { status: 500 })
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@@ -113,28 +116,41 @@ export async function PUT(
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}
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}
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const body = await request.json()
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const body = await request.json()
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const { features, mapCenter, mapZoom } = body as {
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const { features, mapCenter, mapZoom, baseVersion } = body as {
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features: Array<{ id?: string; type: string; geometry: object; properties?: object }>
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features: Array<{ id?: string; type: string; geometry: object; properties?: object }>
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mapCenter?: { lng: number; lat: number }
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mapCenter?: { lng: number; lat: number }
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mapZoom?: number
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mapZoom?: number
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baseVersion?: number
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}
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}
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// Persist map viewport alongside features (if provided)
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try {
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if (mapCenter && mapZoom !== undefined) {
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// ATOMAR + optimistischer Lock in EINER interaktiven Transaktion:
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await (prisma as any).project.update({
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// - Version prüfen/hochzählen (verhindert Überschreiben durch veralteten Stand)
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where: { id },
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// - Features löschen + neu anlegen (kein Totalverlust-Fenster)
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data: { mapCenter, mapZoom },
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const result = await (prisma as any).$transaction(async (tx: any) => {
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if (typeof baseVersion === 'number') {
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// Nur speichern, wenn die Version noch stimmt (atomar über WHERE-Bedingung)
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const bump = await tx.project.updateMany({
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where: { id, featuresVersion: baseVersion },
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data: { featuresVersion: { increment: 1 } },
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})
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})
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if (bump.count === 0) {
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const conflict: any = new Error('VERSION_CONFLICT')
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conflict.code = 'VERSION_CONFLICT'
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throw conflict
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}
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} else {
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// Kein baseVersion mitgeschickt (Alt-Client/Beacon) → nur hochzählen
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await tx.project.update({ where: { id }, data: { featuresVersion: { increment: 1 } } })
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}
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}
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// ATOMAR: löschen + neu anlegen in EINER Transaktion.
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if (mapCenter && mapZoom !== undefined) {
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// Sonst droht bei Abbruch zwischen delete und create Totalverlust aller Elemente.
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await tx.project.update({ where: { id }, data: { mapCenter, mapZoom } })
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const ops: any[] = [
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}
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(prisma as any).feature.deleteMany({ where: { projectId: id } }),
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]
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await tx.feature.deleteMany({ where: { projectId: id } })
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if (features && features.length > 0) {
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if (features && features.length > 0) {
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ops.push(
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await tx.feature.createMany({
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(prisma as any).feature.createMany({
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data: features.map((f: any) => ({
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data: features.map((f: any) => ({
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projectId: id,
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projectId: id,
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type: f.type,
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type: f.type,
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@@ -142,15 +158,32 @@ export async function PUT(
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properties: f.properties || {},
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properties: f.properties || {},
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})),
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})),
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})
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})
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)
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}
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}
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await (prisma as any).$transaction(ops)
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const updatedFeatures = await (prisma as any).feature.findMany({
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const [updatedFeatures, proj] = await Promise.all([
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where: { projectId: id },
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tx.feature.findMany({ where: { projectId: id } }),
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})
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tx.project.findUnique({ where: { id }, select: { featuresVersion: true } }),
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])
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return { features: updatedFeatures, featuresVersion: proj?.featuresVersion ?? 0 }
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}, { timeout: 15000, maxWait: 5000 })
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return NextResponse.json({ features: updatedFeatures })
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return NextResponse.json(result)
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} catch (txError: any) {
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if (txError?.code === 'VERSION_CONFLICT') {
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// Konflikt: aktuellen Server-Stand zurückgeben, damit der Client abgleichen kann
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const [currentFeatures, proj] = await Promise.all([
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(prisma as any).feature.findMany({ where: { projectId: id }, orderBy: { createdAt: 'asc' } }),
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(prisma as any).project.findUnique({ where: { id }, select: { featuresVersion: true } }),
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])
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return NextResponse.json({
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error: 'Der Einsatz wurde zwischenzeitlich geändert.',
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conflict: true,
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features: currentFeatures,
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featuresVersion: proj?.featuresVersion ?? 0,
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}, { status: 409 })
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}
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throw txError
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}
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} catch (error) {
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} catch (error) {
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console.error('Error updating features:', error)
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console.error('Error updating features:', error)
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return NextResponse.json({ error: 'Serverfehler' }, { status: 500 })
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return NextResponse.json({ error: 'Serverfehler' }, { status: 500 })
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@@ -72,6 +72,9 @@ export default function AppPage() {
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const featuresRef = useRef<DrawFeature[]>(features)
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const featuresRef = useRef<DrawFeature[]>(features)
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useEffect(() => { featuresRef.current = features }, [features])
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useEffect(() => { featuresRef.current = features }, [features])
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// Optimistischer Lock: Features-Version des aktuellen Projekts mitführen
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const featuresVersionRef = useRef<number>(0)
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// Ref for undo-draw-point (removes last point during line drawing)
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// Ref for undo-draw-point (removes last point during line drawing)
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const undoDrawPointRef = useRef<(() => boolean) | null>(null)
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const undoDrawPointRef = useRef<(() => boolean) | null>(null)
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@@ -385,6 +388,24 @@ export default function AppPage() {
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const canEdit = canEditMap // Abwärtskompatibel für Karten-bezogene Stellen
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const canEdit = canEditMap // Abwärtskompatibel für Karten-bezogene Stellen
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const isReadOnly = !!editingBy && !isEditingByMe
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const isReadOnly = !!editingBy && !isEditingByMe
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// Features-Version bei Projektwechsel initialisieren
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useEffect(() => {
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featuresVersionRef.current = (currentProject as any)?.featuresVersion ?? 0
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}, [currentProject?.id])
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// Speicher-Konflikt: Server-Stand übernehmen und den Nutzer warnen
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const handleSaveConflict = useCallback((serverFeatures: DrawFeature[], serverVersion: number) => {
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setFeatures(serverFeatures)
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featuresVersionRef.current = serverVersion
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undoStackRef.current = []
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redoStackRef.current = []
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toast({
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title: 'Konflikt erkannt',
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description: 'Der Einsatz wurde von jemand anderem geändert — der aktuelle Stand wurde geladen. Bitte prüfe deine Änderungen und mache sie ggf. erneut.',
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variant: 'destructive',
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})
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}, [toast])
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// Auto-save: localStorage persistence + debounced API save + beacon on unload
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// Auto-save: localStorage persistence + debounced API save + beacon on unload
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useAutoSave({
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useAutoSave({
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currentProject,
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currentProject,
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@@ -394,6 +415,8 @@ export default function AppPage() {
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socketRef,
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socketRef,
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isEditingByMe,
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isEditingByMe,
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setSyncQueueCount,
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setSyncQueueCount,
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featuresVersionRef,
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onConflict: handleSaveConflict,
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})
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})
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// Fullscreen toggle
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// Fullscreen toggle
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@@ -522,7 +545,7 @@ export default function AppPage() {
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setIsSaving(true)
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setIsSaving(true)
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try {
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try {
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const saveBody: any = { features }
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const saveBody: any = { features, baseVersion: featuresVersionRef.current }
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if (mapRef.current) {
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if (mapRef.current) {
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const c = mapRef.current.getCenter()
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const c = mapRef.current.getCenter()
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saveBody.mapCenter = { lng: c.lng, lat: c.lat }
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saveBody.mapCenter = { lng: c.lng, lat: c.lat }
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@@ -554,19 +577,34 @@ export default function AppPage() {
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}
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}
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const created = await createRes.json()
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const created = await createRes.json()
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setCurrentProject(created.project)
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setCurrentProject(created.project)
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featuresVersionRef.current = created.project?.featuresVersion ?? 0
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// Retry save with new project ID
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// Retry save with new project ID
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res = await fetch(`/api/projects/${created.project.id}/features`, {
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res = await fetch(`/api/projects/${created.project.id}/features`, {
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method: 'PUT',
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method: 'PUT',
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headers: { 'Content-Type': 'application/json' },
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headers: { 'Content-Type': 'application/json' },
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body: JSON.stringify({ features }),
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body: JSON.stringify({ features, baseVersion: featuresVersionRef.current }),
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})
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})
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}
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}
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// Versionskonflikt: Server-Stand übernehmen statt zu überschreiben
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if (res.status === 409) {
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const data = await res.json().catch(() => null)
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if (data?.conflict) {
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handleSaveConflict(data.features || [], data.featuresVersion ?? featuresVersionRef.current)
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return
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}
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}
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if (!res.ok) {
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if (!res.ok) {
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const err = await res.json().catch(() => ({}))
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const err = await res.json().catch(() => ({}))
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throw new Error(err.error || 'Speichern fehlgeschlagen')
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throw new Error(err.error || 'Speichern fehlgeschlagen')
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}
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}
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const okData = await res.json().catch(() => null)
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if (okData && typeof okData.featuresVersion === 'number') {
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featuresVersionRef.current = okData.featuresVersion
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}
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// Broadcast features to other clients
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// Broadcast features to other clients
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socketRef.current?.emit('features-updated', {
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socketRef.current?.emit('features-updated', {
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projectId: currentProject.id,
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projectId: currentProject.id,
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@@ -10,6 +10,10 @@ interface UseAutoSaveOptions {
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socketRef: React.MutableRefObject<any>
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socketRef: React.MutableRefObject<any>
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isEditingByMe: boolean
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isEditingByMe: boolean
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setSyncQueueCount: (count: number) => void
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setSyncQueueCount: (count: number) => void
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/** Aktuelle Features-Version des Projekts (optimistischer Lock) */
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featuresVersionRef: React.MutableRefObject<number>
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/** Wird bei einem Speicher-Konflikt (409) mit dem Server-Stand aufgerufen */
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onConflict: (serverFeatures: DrawFeature[], serverVersion: number) => void
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}
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}
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export function useAutoSave({
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export function useAutoSave({
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@@ -20,6 +24,8 @@ export function useAutoSave({
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socketRef,
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socketRef,
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isEditingByMe,
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isEditingByMe,
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setSyncQueueCount,
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setSyncQueueCount,
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featuresVersionRef,
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onConflict,
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}: UseAutoSaveOptions) {
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}: UseAutoSaveOptions) {
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// Persist features to localStorage on change (per project — verhindert, dass Features
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// Persist features to localStorage on change (per project — verhindert, dass Features
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// eines Projekts in ein anderes "bluten"). Inkl. leerem Array (spiegelt Löschungen).
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// eines Projekts in ein anderes "bluten"). Inkl. leerem Array (spiegelt Löschungen).
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@@ -34,7 +40,7 @@ export function useAutoSave({
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if (!currentProject?.id) return
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if (!currentProject?.id) return
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const url = `/api/projects/${currentProject.id}/features`
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const url = `/api/projects/${currentProject.id}/features`
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const mapInstance = mapRef.current
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const mapInstance = mapRef.current
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const body: any = { features: featuresRef.current }
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const body: any = { features: featuresRef.current, baseVersion: featuresVersionRef.current }
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if (mapInstance) {
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if (mapInstance) {
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const c = mapInstance.getCenter()
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const c = mapInstance.getCenter()
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body.mapCenter = { lng: c.lng, lat: c.lat }
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body.mapCenter = { lng: c.lng, lat: c.lat }
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@@ -56,11 +62,22 @@ export function useAutoSave({
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body: JSON.stringify(body),
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body: JSON.stringify(body),
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})
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})
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if (res.ok) {
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if (res.ok) {
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const data = await res.json().catch(() => null)
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if (data && typeof data.featuresVersion === 'number') {
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featuresVersionRef.current = data.featuresVersion
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}
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console.log('[Auto-Save] Features gespeichert')
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console.log('[Auto-Save] Features gespeichert')
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socketRef.current?.emit('features-updated', {
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socketRef.current?.emit('features-updated', {
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projectId: currentProject.id,
|
projectId: currentProject.id,
|
||||||
features: featuresRef.current,
|
features: featuresRef.current,
|
||||||
})
|
})
|
||||||
|
} else if (res.status === 409) {
|
||||||
|
// Konflikt: jemand anderes hat zwischenzeitlich gespeichert → Server-Stand übernehmen
|
||||||
|
const data = await res.json().catch(() => null)
|
||||||
|
if (data?.conflict) {
|
||||||
|
console.warn('[Auto-Save] Versionskonflikt — Server-Stand übernehmen')
|
||||||
|
onConflict(data.features || [], data.featuresVersion ?? featuresVersionRef.current)
|
||||||
|
}
|
||||||
} else if (res.status === 404) {
|
} else if (res.status === 404) {
|
||||||
console.warn('[Auto-Save] Projekt nicht in DB')
|
console.warn('[Auto-Save] Projekt nicht in DB')
|
||||||
}
|
}
|
||||||
@@ -70,7 +87,7 @@ export function useAutoSave({
|
|||||||
setSyncQueueCount(getSyncQueue().length)
|
setSyncQueueCount(getSyncQueue().length)
|
||||||
console.warn('[Auto-Save] Netzwerkfehler — in Sync-Queue:', e)
|
console.warn('[Auto-Save] Netzwerkfehler — in Sync-Queue:', e)
|
||||||
}
|
}
|
||||||
}, [currentProject, mapRef, featuresRef, socketRef, setSyncQueueCount])
|
}, [currentProject, mapRef, featuresRef, socketRef, setSyncQueueCount, featuresVersionRef, onConflict])
|
||||||
|
|
||||||
// Debounced save on every feature change (2s delay)
|
// Debounced save on every feature change (2s delay)
|
||||||
useEffect(() => {
|
useEffect(() => {
|
||||||
@@ -86,7 +103,7 @@ export function useAutoSave({
|
|||||||
// Nur der aktive Bearbeiter persistiert beim Schliessen — auch eine leere Liste,
|
// Nur der aktive Bearbeiter persistiert beim Schliessen — auch eine leere Liste,
|
||||||
// damit "alles gelöscht + Tab zu" nicht die alten Elemente in der DB stehen lässt.
|
// damit "alles gelöscht + Tab zu" nicht die alten Elemente in der DB stehen lässt.
|
||||||
if (currentProject?.id && isEditingByMe) {
|
if (currentProject?.id && isEditingByMe) {
|
||||||
const payload = JSON.stringify({ features: featuresRef.current })
|
const payload = JSON.stringify({ features: featuresRef.current, baseVersion: featuresVersionRef.current })
|
||||||
navigator.sendBeacon(`/api/projects/${currentProject.id}/features`, new Blob([payload], { type: 'application/json' }))
|
navigator.sendBeacon(`/api/projects/${currentProject.id}/features`, new Blob([payload], { type: 'application/json' }))
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
@@ -12,6 +12,7 @@ export interface Project {
|
|||||||
mapCenter: { lng: number; lat: number }
|
mapCenter: { lng: number; lat: number }
|
||||||
mapZoom: number
|
mapZoom: number
|
||||||
isLocked: boolean
|
isLocked: boolean
|
||||||
|
featuresVersion?: number
|
||||||
editingById?: string | null
|
editingById?: string | null
|
||||||
editingUserName?: string | null
|
editingUserName?: string | null
|
||||||
editingStartedAt?: string | null
|
editingStartedAt?: string | null
|
||||||
|
|||||||
Reference in New Issue
Block a user