801 lines
90 KiB
TypeScript
801 lines
90 KiB
TypeScript
import {orphanCoverage,prepareOrphanFiles,abortableFileRead,type OrphanFile} from './orphan-files.ts';
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import {importFiles,terminalImport,markImportFiles,prepareImportFileRetention,type FileRetirement} from './import-file-retention.ts';
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import {resourceRetentionPins,prepareResourceRetention} from './resource-retention.ts';
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import { encodeIndexedCopySnapshot, openIndexedCopySnapshot, type IndexedCopySnapshot } from './copy-snapshot-index.ts';
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import { decodeCopySnapshot, copyRegistrySignature } from './copy-snapshot.ts';
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import { createDuplicatePlanSource } from './duplicate-source.ts';
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import { planDuplicateAsync, planDuplicateResumable, prepareDuplicateStream } from './duplicate.ts';
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import type { DigestPort } from './digest-pool.ts';
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import { importSourceDigest } from './import-integrity.ts';
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import { encodeDuplicateSource, prepareDuplicateImport, assertDuplicateExternal } from './import-duplicate.ts';
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import { createImportJob, createImportRunner, createNdjsonImportSource, type ImportJob } from './imports.ts';
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import { assertNativeImportDependencies, assertNativeImportTarget, prepareNativeImport } from './import-native.ts';
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import { elisionBatchLimit, findElision } from './elision.ts';
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import type { Document, Id, Registry, Result, RunInput, RunApplyInput, RunCancelInput, Target, Point, Json, OperationIntent, Data } from '../canvas-core/types.ts';
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import { createEditor, type EditorOptions, type Transaction } from '../canvas-core/editor.ts';
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import { createDocument } from '../canvas-core/document.ts';
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import { createSessions } from '../canvas-core/gestures.ts';
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import { clone, equal, fault, freeze, readMap, reject } from '../canvas-core/values.ts';
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import type { CanonicalProposal, EngineSnapshot, PersistencePort, RuntimeState } from './contracts.ts';
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import { createRunTracker, validateRunInput, runContainsTarget, type RunPort, type RunRecord, type RunPage } from './runs.ts';
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import { createNetworkGate } from './network.ts';
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import { createLedger, type FrozenRequest } from './ledger.ts';
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import { operationCanvases, replayPending, validateCanonicalRead } from './reconcile.ts';
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import { decodeRecovery, encodeRecovery } from './recovery.ts';
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import { createScheduler, type Clock, type OperationStatus } from './scheduler.ts';
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import { planConflictRecovery, type ConflictPlan, type RecoveryChoice } from './conflicts.ts';
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import { stageAppliedRecovery } from './applied-recovery.ts';
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import { conflictsWith, maxResourceBytes, operationFootprint, referencedResources, type AssetPort, type ResourceRecord, type ResourceHandle, type StagedFile } from './resources.ts';
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import type { StoragePort, StorageScope } from './storage.ts';
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const digestFailures=new Set(['digest_capacity','digest_worker_failed','digest_worker_unavailable','invalid_digest_response','digest_pool_closed']);
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export type EngineOptions = {
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scope: StorageScope; registry: Registry; document: Document; versions: ReadonlyMap<Id, number>;
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storage: StoragePort; digests?:Pick<DigestPort,'digest'>; persistence: PersistencePort; assets?: AssetPort; runs?: RunPort; createId?: () => Id;
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historyLimit?: number; queryBudget?:EditorOptions['queryBudget']; policy?: EditorOptions['policy']; traversalPolicy?: EditorOptions['traversalPolicy']; clock?: Clock;
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onError?: (error: unknown) => void;
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};
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export type RecoverySession = {
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readonly baseRootRevision: number;
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readonly canonical: CanonicalProposal;
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readonly pendingOperationIds: readonly Id[];
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readonly acknowledgedRequestIds: readonly Id[];
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/** A conflict is diagnostic only: the existing document/history/requests remain intact. */
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readonly conflict?: { readonly code: string; readonly targets: readonly Id[] };
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plan(choices:ReadonlyMap<Id,RecoveryChoice>):ConflictPlan;
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resolve(plan:ConflictPlan):Promise<Result>;
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apply(): Promise<Result>;
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cancel(): Promise<void>;
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};
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/** One project owner. Detaching a view does not close this engine or abort persistent work. */
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export async function openProjectEngine(options: EngineOptions) {
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if (options.scope.projectId !== options.document.projectId) throw fault('project_mismatch');
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const leader = await options.storage.claim(options.scope);
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try {
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const image = await options.storage.recover(leader), recovered = image ? decodeRecovery(image, options.registry) : undefined;
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if (recovered && recovered.document.projectId !== options.scope.projectId) throw fault('project_mismatch');
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for (const canvas of options.document.canvases.keys()) if (!Number.isSafeInteger(options.versions.get(canvas)) || options.versions.get(canvas)! < 1) throw fault('missing_server_version', [canvas]);
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let closing = false, closed = false, durableRootRevision = image?.rootRevision ?? -1;
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const digestLifecycle=new AbortController();
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const sourceDigest=(bytes:Blob,signal?:AbortSignal)=>{const combined=signal?AbortSignal.any([signal,digestLifecycle.signal]):digestLifecycle.signal;return options.digests?options.digests.digest(bytes,combined):importSourceDigest(bytes,combined);};
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const report = (error: unknown) => { try { options.onError?.(error); } catch { /* Error reporting cannot alter state. */ } };
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const createId = options.createId ?? (() => crypto.randomUUID());
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const network = createNetworkGate(2);
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const runClock: Clock = options.clock ?? { now: () => Date.now(), setTimer: (fn, delay) => setTimeout(fn, delay), clearTimer: handle => clearTimeout(handle as ReturnType<typeof setTimeout>) };
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const displays = new Set<() => void>();
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const displayPins=new Map<Id,number>(),collectionReservations=new Set<Id>(),durablyPurged=new Set<Id>([...(recovered?.runtime.resources.values()??[])].filter(resource=>resource.retirement?.purgedAt!==undefined).map(resource=>resource.id));
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type CollectionReport={readonly markedIds:readonly Id[];readonly purgedIds:readonly Id[];readonly complete:boolean;readonly checkedRootRevision:number;readonly rootRevision:number;readonly durableRootRevision:number};
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let sourceCollection:Promise<CollectionReport>|undefined;
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let orphanCollection:Promise<{readonly markedIds:readonly Id[];readonly purgedIds:readonly Id[];readonly changedIds:readonly Id[];readonly complete:boolean;readonly blockers:readonly string[];readonly checkedRootRevision:number;readonly scanned:number;readonly nextAfter?:Id;readonly hashBudgetExhausted:boolean;readonly scanFinished:boolean;readonly durableRootRevision:number}>|undefined;
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let orphanController:AbortController|undefined;
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for(const [id,file]of recovered?.runtime.orphanFiles??[])if(file.retirement?.purgedAt!==undefined)durablyPurged.add(id);
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for(const [id,entry]of importFiles(recovered?.runtime.imports))if(entry.file.retirement?.purgedAt!==undefined)durablyPurged.add(id);
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let collection:Promise<CollectionReport>|undefined;
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const fileWrites = new Map<Id, Blob>(), digestTasks = new Map<Id, Promise<void>>();
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let staged: readonly ResourceRecord[] = [];
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let applying: RunApplyInput | undefined;
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let importing: { job: ImportJob; expectedGeneration: number } | undefined;
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const preparationControllers=new Map<Id,AbortController>();
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const copyPreparations=new Map<AbortController,Promise<Id>>();
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const importRunners=new Map<Id,ReturnType<typeof createImportRunner>>(),importLoads=new Map<Id,Promise<void>>(),importHolds=new Map<symbol,Map<Id,()=>void>>();
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let recovery: { controller: AbortController; release(): void; cancel():Promise<void> } | undefined;
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const admissionPins=(snapshot:EngineSnapshot)=>copyPreparations.size?new Map([['copy-admission',[...snapshot.runtime.resources.values()].filter(resource=>resource.retirement?.purgedAt===undefined).map(resource=>resource.id)]]):new Map<Id,readonly Id[]>();
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const assertWritable = () => { if(closing||closed)throw fault('engine_closing');if(recovery)throw fault('recovery_in_progress'); };
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const initial: RuntimeState = recovered?.runtime ?? Object.freeze({ imports:readMap(new Map()), recoveries:readMap(new Map()), runs: readMap(new Map()), acknowledged: createDocument(options.document.projectId, [...options.document.canvases.values()], [...options.document.elements.values()], options.document.tombstones), versions: readMap(options.versions), ledger: createLedger().getSnapshot(), receipts: readMap(new Map()), conflicts: readMap(new Map()), resources: readMap(new Map()), resourcePins: readMap(new Map()) });
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const editor = createEditor({ registry: options.registry, document: options.document, recovery: recovered, runtime: initial, createId: options.createId, historyLimit: options.historyLimit,queryBudget:options.queryBudget,
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policy(command, document) { if (closing || closed || recovery) return { enabled: false, code: closing||closed?'engine_closing':'recovery_in_progress', targets: [] }; return options.policy?.(command, document) ?? { enabled: true }; },
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traversalPolicy(entry, direction) { return closing || closed || recovery ? { enabled: false, code: closing||closed?'engine_closing':'recovery_in_progress', targets: [] } : options.traversalPolicy?.(entry, direction) ?? { enabled: true }; },
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onListenerError: report,
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prepareRuntime:(previous,next)=>{
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const runtime=prepareResourceRetention(next,options.registry,displayPins,collectionReservations,admissionPins(next));
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const changed=previous.document!==next.document||previous.history!==next.history||previous.runtime.ledger!==runtime.ledger||previous.runtime.resourcePins!==runtime.resourcePins;
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const imports=prepareImportFileRetention(previous.runtime,runtime,()=>resourceRetentionPins({...next,runtime},options.registry,displayPins,admissionPins({...next,runtime})),collectionReservations,changed);
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return prepareOrphanFiles(previous.runtime,imports,()=>orphanCoverage({...next,runtime:imports},options.registry,displayPins,admissionPins({...next,runtime:imports})),collectionReservations,changed);
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},
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prepareIntent: intent => applying && intent.origin==='user' ? {...intent,operationType:'run.apply',action:applying} : intent,
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nextOperationSequence(runtime, fallback) { let next = fallback; for (const record of runtime.ledger.operations.values()) next = Math.max(next, record.intent.sequence + 1); return next + staged.length; },
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reduceRuntime(previous, next, commit) {
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if (!commit.operationIds.length) return previous;
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const ledger = createLedger(previous.ledger), resources = new Map(previous.resources);
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const firstSequence = next.operations.get(commit.operationIds[0])!.sequence - staged.length;
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staged.forEach((resource, index) => {
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if (resources.has(resource.id) || ledger.getSnapshot().operations.has(resource.operationId)) throw fault('resource_identity_conflict', [resource.id]);
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resources.set(resource.id, resource);
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ledger.add(freeze({ id: resource.operationId, operationType: 'asset.upload', operationSchemaVersion: 1, sequence: firstSequence + index, origin: 'user', canvasIds: [], changes: [], dependencies: [], resourceId: resource.id }), {});
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ledger.block(resource.operationId, ['waiting_digest']);
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});
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for (const id of commit.operationIds) {
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const intent = next.operations.get(id)!, footprint = operationFootprint(intent, next.document);
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const dependencies = new Set(intent.dependencies);
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for (const record of ledger.getSnapshot().operations.values()) if (record.phase !== 'resolved' && (record.intent.operationType === 'run.start' || ['document.change','run.apply'].includes(record.intent.operationType) && conflictsWith(operationFootprint(record.intent, next.document), footprint))) dependencies.add(record.intent.id);
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for (const id of referencedResources(intent.changes, options.registry)) {
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const resource = resources.get(id);
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if (resource && !resource.stored) dependencies.add(resource.operationId);
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}
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const basePresence: Record<Id, 'absent' | 'exists'> = Object.create(null);
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for (const change of intent.changes) if (change.kind === 'element') basePresence[change.id] ??= change.before ? 'exists' : 'absent'; else if (change.kind === 'field') basePresence[change.target.id] ??= 'exists';
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ledger.add(freeze({ ...intent, dependencies: [...dependencies] }), basePresence);
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}
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const imports=new Map(previous.imports??[]);
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if(importing){if(imports.get(importing.job.id)?.generation!==importing.expectedGeneration)throw fault('stale_import_job');imports.set(importing.job.id,importing.job);}
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return Object.freeze({ ...previous, imports:readMap(imports), resources: readMap(resources), ledger: ledger.getSnapshot() });
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},
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});
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const pending = new Map<number, EngineSnapshot>();
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if (!recovered) pending.set(editor.getSnapshot().rootRevision, editor.getSnapshot());
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let writing: Promise<void> | undefined, scheduled = false, persistenceFailed = false;
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function persist(): Promise<void> {
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if (writing) return writing;
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const task = (async () => {
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while (pending.size) {
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const [revision, snapshot] = pending.entries().next().value!;
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const sourceFiles=importFiles(snapshot.runtime.imports);
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const files = [...fileWrites].filter(([id]) => snapshot.runtime.resources.has(id)||sourceFiles.has(id)).map(([id, bytes]) => ({ id, bytes }));
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const deleteFiles=[...[...snapshot.runtime.resources.values()].filter(resource=>resource.retirement?.purgedAt!==undefined&&!durablyPurged.has(resource.id)).map(resource=>resource.id),...[...sourceFiles].filter(([id,entry])=>entry.file.retirement?.purgedAt!==undefined&&!durablyPurged.has(id)).map(([id])=>id),...[...(snapshot.runtime.orphanFiles??[])].filter(([id,file])=>file.retirement?.purgedAt!==undefined&&!durablyPurged.has(id)).map(([id])=>id)];
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const receipt = await options.storage.commit(leader, { image: encodeRecovery(snapshot), files,deleteFiles });
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if (receipt.durableRootRevision !== revision) throw fault('invalid_durable_receipt');
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durableRootRevision = revision; pending.delete(revision);
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for(const id of deleteFiles){durablyPurged.add(id);collectionReservations.delete(id);}
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for (const file of files) fileWrites.delete(file.id);
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if (editor.getSnapshot().runtime.ledger.durableGeneration < snapshot.runtime.ledger.generation) mutate(ledger => ledger.markDurable(snapshot.runtime.ledger.generation));
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}
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persistenceFailed = false;
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})();
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writing = task.catch(error => { persistenceFailed = true; throw error; }).finally(() => { writing = undefined; });
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return writing;
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}
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function collectResources(settings:{retentionMs:number;maxFiles?:number}) {
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assertWritable();
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if(options.storage.fileDeletion!=='atomic-v1')throw fault('resource_collection_unavailable');
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const retentionMs=settings.retentionMs,maxFiles=settings.maxFiles??64;
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if(!Number.isSafeInteger(retentionMs)||retentionMs<0||!Number.isSafeInteger(maxFiles)||maxFiles<1||maxFiles>128)throw fault('invalid_resource_collection');
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if(collection)return collection;
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const task=(async()=>{
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await persist();assertWritable();
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const now=runClock.now();if(!Number.isSafeInteger(now)||now<0)throw fault('invalid_resource_collection_clock');
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let root=editor.getSnapshot(),pins=resourceRetentionPins(root,options.registry,displayPins,admissionPins(root));
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const markedIds:Id[]=[],purgedIds:Id[]=[];
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const report=()=>Object.freeze({markedIds:Object.freeze(markedIds),purgedIds:Object.freeze(purgedIds),complete:pins.complete,checkedRootRevision:root.rootRevision,rootRevision:editor.getSnapshot().rootRevision,durableRootRevision});
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if(!pins.complete)return report();
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const fresh=[...root.runtime.resources.values()].filter(resource=>!resource.retirement&&!pins.pins.has(resource.id)&&!fileWrites.has(resource.id)&&!digestTasks.has(resource.id)).slice(0,maxFiles);
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if(fresh.length){
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const result=editor.updateRuntime(previous=>{const resources=new Map(previous.resources);for(const resource of fresh){resources.set(resource.id,freeze({...resource,retirement:{version:1 as const,unreferencedAt:now}}));markedIds.push(resource.id);}return Object.freeze({...previous,resources:readMap(resources)});},root.rootRevision);
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if(result.status==='rejected')throw fault(result.code,result.targets);
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await persist();assertWritable();
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}
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root=editor.getSnapshot();pins=resourceRetentionPins(root,options.registry,displayPins,admissionPins(root));
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if(!pins.complete)return report();
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const eligible=[...root.runtime.resources.values()].filter(resource=>resource.retirement&&resource.retirement.purgedAt===undefined&&now-resource.retirement.unreferencedAt>=retentionMs&&!pins.pins.has(resource.id)&&!fileWrites.has(resource.id)&&!digestTasks.has(resource.id)).slice(0,maxFiles);
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if(eligible.length){
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for(const resource of eligible)collectionReservations.add(resource.id);
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const result=editor.updateRuntime(previous=>{const resources=new Map(previous.resources);for(const resource of eligible)resources.set(resource.id,freeze({...resource,retirement:{...resource.retirement!,purgedAt:now}}));return Object.freeze({...previous,resources:readMap(resources)});},root.rootRevision);
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if(result.status==='rejected'){for(const resource of eligible)collectionReservations.delete(resource.id);throw fault(result.code,result.targets);}
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// Persistence derives byte deletions from this immutable root, even if a listener already started it.
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await persist();for(const resource of eligible)purgedIds.push(resource.id);
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}
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return report();
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})();
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collection=task.finally(()=>{collection=undefined;});return collection;
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}
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function collectImportSources(settings:{retentionMs:number;maxFiles?:number}):Promise<CollectionReport> {
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assertWritable();if(options.storage.fileDeletion!=='atomic-v1')throw fault('resource_collection_unavailable');
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const retentionMs=settings.retentionMs,maxFiles=settings.maxFiles??64;
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if(!Number.isSafeInteger(retentionMs)||retentionMs<0||!Number.isSafeInteger(maxFiles)||maxFiles<1||maxFiles>128)throw fault('invalid_resource_collection');
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if(sourceCollection)return sourceCollection;
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const task=(async()=>{
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await persist();assertWritable();
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const now=runClock.now();if(!Number.isSafeInteger(now)||now<0)throw fault('invalid_resource_collection_clock');
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let root=editor.getSnapshot(),pins=resourceRetentionPins(root,options.registry,displayPins,admissionPins(root));
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const markedIds:Id[]=[],purgedIds:Id[]=[];
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const report=()=>Object.freeze({markedIds:Object.freeze(markedIds),purgedIds:Object.freeze(purgedIds),complete:pins.complete,checkedRootRevision:root.rootRevision,rootRevision:editor.getSnapshot().rootRevision,durableRootRevision});
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const candidates=()=>[...importFiles(root.runtime.imports)].filter(([id,entry])=>!pins.pins.has(id)&&!fileWrites.has(id)&&(!entry.current||terminalImport(root.runtime.imports!.get(entry.jobId)!.status)&&!importLoads.has(entry.jobId)));
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if(!pins.complete)return report();
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const fresh=candidates().filter(([,entry])=>!entry.file.retirement).slice(0,maxFiles);
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if(fresh.length){
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const markers=new Map(fresh.map(([id])=>[id,{version:1 as const,unreferencedAt:now}]));
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const result=editor.updateRuntime(previous=>markImportFiles(previous,markers),root.rootRevision);if(result.status==='rejected')throw fault(result.code,result.targets);
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markedIds.push(...markers.keys());await persist();assertWritable();
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}
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root=editor.getSnapshot();pins=resourceRetentionPins(root,options.registry,displayPins,admissionPins(root));if(!pins.complete)return report();
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const eligible=candidates().filter(([,entry])=>entry.file.retirement&&entry.file.retirement.purgedAt===undefined&&now-entry.file.retirement.unreferencedAt>=retentionMs).slice(0,maxFiles);
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if(eligible.length){
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const markers=new Map<Id,FileRetirement>(eligible.map(([id,entry])=>[id,{...entry.file.retirement!,purgedAt:now}]));
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for(const id of markers.keys())collectionReservations.add(id);
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const result=editor.updateRuntime(previous=>markImportFiles(previous,markers),root.rootRevision);
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if(result.status==='rejected'){for(const id of markers.keys())collectionReservations.delete(id);throw fault(result.code,result.targets);}
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await persist();purgedIds.push(...markers.keys());
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}
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return report();
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})();
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sourceCollection=task.finally(()=>{sourceCollection=undefined;});return sourceCollection;
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}
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async function openImportSource(jobId:Id,fileId?:Id) {
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if(closing||closed)throw fault('engine_closing');const job=getImport(jobId),file=fileId!==undefined?importFiles(new Map([[jobId,job]])).get(fileId)?.file:job.source;if(!file)throw fault('import_source_unavailable');
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if(collectionReservations.has(file.fileId))throw fault('resource_collection_in_progress',[file.fileId]);
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if(file.retirement?.purgedAt!==undefined)throw fault('import_source_retired',[file.fileId]);
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displayPins.set(file.fileId,(displayPins.get(file.fileId)??0)+1);let released=false;
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const release=()=>{if(released)return;released=true;displays.delete(release);const count=displayPins.get(file.fileId)??1;if(count<=1)displayPins.delete(file.fileId);else displayPins.set(file.fileId,count-1);};displays.add(release);
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try{
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if(file.retirement){const result=editor.updateRuntime(previous=>Object.freeze({...previous}));if(result.status==='rejected')throw fault(result.code,result.targets);}
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const bytes=fileWrites.get(file.fileId)??await options.storage.readFile(leader,file.fileId);
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if(closing||closed)throw fault('engine_closing');if(!bytes||bytes.size!==file.byteLength)throw fault('import_source_unavailable',[file.fileId]);
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if(file.sha256&&await sourceDigest(bytes)!==file.sha256)throw fault('import_source_changed',[file.fileId]);
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if(closing||closed)throw fault('engine_closing');return Object.freeze({bytes,release});
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}catch(error){release();if(closing||closed)throw fault('engine_closing');throw error;}
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}
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async function scanLocalFiles(root:EngineSnapshot,after:Id|undefined,limit:number){
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if(!options.storage.scanFiles)throw fault('file_inventory_unavailable');
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const page=await options.storage.scanFiles(leader,{expectedRootRevision:root.rootRevision,after,limit});
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if(closing||closed)throw fault('engine_closing');if(editor.getSnapshot()!==root)throw fault('stale_file_inventory');
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let previous=after;
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if(page.rootRevision!==root.rootRevision||!Array.isArray(page.files)||page.files.length>limit)throw fault('invalid_file_inventory');
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for(const file of page.files){if(!file.id||typeof file.id!=='string'||previous!==undefined&&file.id<=previous||!Number.isSafeInteger(file.byteLength)||file.byteLength<0||typeof file.mimeType!=='string')throw fault('invalid_file_inventory');previous=file.id;}
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if(page.nextAfter!==undefined&&(!page.files.length||page.nextAfter!==previous))throw fault('invalid_file_inventory');return page;
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}
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async function inventoryLocalFiles(settings:{after?:Id;limit?:number}={}){
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assertWritable();const limit=settings.limit??128;if(!Number.isSafeInteger(limit)||limit<1||limit>128||settings.after!==undefined&&(typeof settings.after!=='string'||!settings.after))throw fault('invalid_file_inventory');
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await persist();assertWritable();const root=editor.getSnapshot(),page=await scanLocalFiles(root,settings.after,limit),sources=importFiles(root.runtime.imports),pins=orphanCoverage(root,options.registry,displayPins,admissionPins(root));
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return Object.freeze({rootRevision:root.rootRevision,complete:pins.complete,blockers:pins.blockers,nextAfter:page.nextAfter,files:Object.freeze(page.files.map(file=>{const resource=root.runtime.resources.get(file.id),source=sources.get(file.id),orphan=root.runtime.orphanFiles?.get(file.id);return Object.freeze({...file,ownership:resource?'resource' as const:source?'import-source' as const:orphan?'registered-orphan' as const:'unregistered' as const,...(source?{jobId:source.jobId,current:source.current}:{}),retired:(resource?.retirement??source?.file.retirement??orphan?.retirement)?.purgedAt!==undefined,pins:Object.freeze([...(pins.pins.get(file.id)??[])])});}))});
|
|
}
|
|
function collectOrphanFiles(settings:{retentionMs:number;maxFiles?:number;after?:Id;pageSize?:number;maxHashBytes?:number;signal?:AbortSignal}){
|
|
assertWritable();if(options.storage.fileDeletion!=='atomic-v1'||!options.storage.scanFiles)throw fault('file_inventory_unavailable');
|
|
const retentionMs=settings.retentionMs,maxFiles=settings.maxFiles??64,pageSize=settings.pageSize??128,maxHashBytes=settings.maxHashBytes??64*1024*1024;
|
|
if(!Number.isSafeInteger(retentionMs)||retentionMs<0||![maxFiles,pageSize].every(value=>Number.isSafeInteger(value)&&value>=1&&value<=128)||!Number.isSafeInteger(maxHashBytes)||maxHashBytes<1||settings.after!==undefined&&(typeof settings.after!=='string'||!settings.after))throw fault('invalid_file_inventory');
|
|
if(orphanCollection)return orphanCollection;
|
|
const controller=new AbortController(),signal=settings.signal?AbortSignal.any([controller.signal,settings.signal]):controller.signal;orphanController=controller;
|
|
const check=()=>{assertWritable();if(signal.aborted)throw fault('file_inventory_aborted');};
|
|
const task=(async()=>{
|
|
await persist();check();const now=runClock.now();if(!Number.isSafeInteger(now)||now<0)throw fault('invalid_resource_collection_clock');
|
|
let root=editor.getSnapshot(),pins=orphanCoverage(root,options.registry,displayPins,admissionPins(root)),scanned=0,nextAfter=settings.after,hashBudgetExhausted=false,scanFinished=false;
|
|
const markedIds:Id[]=[],purgedIds:Id[]=[],changedIds:Id[]=[],verified=new Map<Id,OrphanFile>();
|
|
const result=()=>Object.freeze({markedIds:Object.freeze(markedIds),purgedIds:Object.freeze(purgedIds),changedIds:Object.freeze(changedIds),complete:pins.complete,blockers:pins.blockers,checkedRootRevision:root.rootRevision,scanned,nextAfter,hashBudgetExhausted,scanFinished,durableRootRevision});
|
|
if(!pins.complete)return result();
|
|
const page=await abortableFileRead(scanLocalFiles(root,settings.after,pageSize),signal),sources=importFiles(root.runtime.imports);let hashed=0,finished=true;
|
|
for(const file of page.files){
|
|
check();const registered=root.runtime.orphanFiles?.get(file.id),candidate=!root.runtime.resources.has(file.id)&&!sources.has(file.id)&®istered?.retirement?.purgedAt===undefined&&!pins.pins.has(file.id)&&!fileWrites.has(file.id);
|
|
if(candidate){
|
|
if(verified.size>=maxFiles){finished=false;break;}if(file.byteLength>maxHashBytes-hashed){hashBudgetExhausted=true;finished=false;break;}
|
|
const bytes=await abortableFileRead(options.storage.readFile(leader,file.id),signal);check();if(editor.getSnapshot()!==root)throw fault('stale_file_inventory');
|
|
if(!(bytes instanceof Blob)||bytes.size!==file.byteLength||bytes.type!==file.mimeType)throw fault('file_inventory_changed',[file.id]);
|
|
const digest=await abortableFileRead(sourceDigest(bytes,signal),signal);check();if(editor.getSnapshot()!==root)throw fault('stale_file_inventory');hashed+=bytes.size;
|
|
verified.set(file.id,freeze({version:1 as const,id:file.id,byteLength:file.byteLength,mimeType:file.mimeType,digest}));
|
|
}
|
|
scanned++;nextAfter=file.id;
|
|
}
|
|
if(finished)nextAfter=page.nextAfter;scanFinished=finished&&page.nextAfter===undefined;
|
|
pins=orphanCoverage(root,options.registry,displayPins,admissionPins(root));if(!pins.complete)return result();
|
|
const updates=new Map<Id,OrphanFile>();
|
|
for(const [id,file]of verified){if(pins.pins.has(id))continue;const old=root.runtime.orphanFiles?.get(id),changed=!!old&&(old.digest!==file.digest||old.byteLength!==file.byteLength||old.mimeType!==file.mimeType);
|
|
if(!old?.retirement||changed){updates.set(id,freeze({...file,retirement:{version:1 as const,unreferencedAt:now}}));markedIds.push(id);if(changed)changedIds.push(id);}
|
|
}
|
|
if(updates.size){const update=editor.updateRuntime(previous=>{const files=new Map(previous.orphanFiles);for(const [id,file]of updates)files.set(id,file);return Object.freeze({...previous,orphanFiles:readMap(files)});},root.rootRevision);if(update.status==='rejected')throw fault(update.code,update.targets);await persist();check();}
|
|
root=editor.getSnapshot();pins=orphanCoverage(root,options.registry,displayPins,admissionPins(root));if(!pins.complete)return result();
|
|
const eligible=[...verified].filter(([id,proof])=>{const file=root.runtime.orphanFiles?.get(id);return file?.retirement&&file.retirement.purgedAt===undefined&&now-file.retirement.unreferencedAt>=retentionMs&&file.digest===proof.digest&&file.byteLength===proof.byteLength&&file.mimeType===proof.mimeType&&!pins.pins.has(id)&&!root.runtime.resources.has(id)&&!importFiles(root.runtime.imports).has(id)&&!fileWrites.has(id);});
|
|
if(eligible.length){
|
|
for(const [id]of eligible)collectionReservations.add(id);
|
|
const update=editor.updateRuntime(previous=>{const files=new Map(previous.orphanFiles);for(const [id]of eligible){const file=files.get(id)!;files.set(id,freeze({...file,retirement:{...file.retirement!,purgedAt:now}}));}return Object.freeze({...previous,orphanFiles:readMap(files)});},root.rootRevision);
|
|
if(update.status==='rejected'){for(const [id]of eligible)collectionReservations.delete(id);throw fault(update.code,update.targets);}
|
|
await persist();purgedIds.push(...eligible.map(([id])=>id));
|
|
}
|
|
return result();
|
|
})();
|
|
orphanCollection=task.finally(()=>{orphanCollection=undefined;if(orphanController===controller)orphanController=undefined;});return orphanCollection;
|
|
}
|
|
function mutate(reduce: (ledger: ReturnType<typeof createLedger>) => void) {
|
|
const result = editor.updateRuntime(previous => { const ledger = createLedger(previous.ledger); reduce(ledger); return Object.freeze({ ...previous, ledger: ledger.getSnapshot() }); });
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
}
|
|
function complete(request: FrozenRequest, status: OperationStatus): { readonly blocked: true } | void {
|
|
const root = editor.getSnapshot(), previous = root.runtime, ledger = createLedger(previous.ledger);
|
|
if (request.phase === 'resolved') return;
|
|
if (status.outcome !== 'applied') {
|
|
const result=editor.updateRuntime(runtime=>{const ledger=createLedger(runtime.ledger),receipts=new Map(runtime.receipts);ledger.result(request.id,status.outcome,status.error);if(status.outcome==='not-applied'&&['run.start','run.cancel'].includes(request.kind??''))ledger.resolveNoEffect(request.id);if(status.canonical!==undefined)receipts.set(request.id,freeze(status.canonical));return Object.freeze({...runtime,ledger:ledger.getSnapshot(),receipts:readMap(receipts)});},root.rootRevision);
|
|
if(result.status==='rejected')throw fault(result.code,result.targets);return;
|
|
}
|
|
if(request.kind==='run.cancel'){
|
|
const receipts=new Map(previous.receipts);if(status.canonical!==undefined)receipts.set(request.id,freeze(status.canonical));
|
|
try{
|
|
if(!options.runs)throw fault('run_interpreter_unavailable');
|
|
const accepted=options.runs.acceptAction(request,status,root),run=previous.runs.get(accepted.runId);if(!run||!accepted.runStatus)throw fault('run_identity_mismatch');
|
|
ledger.result(request.id,'applied');const runs=new Map(previous.runs);runs.set(run.id,freeze({...run,controlEpoch:(run.controlEpoch??0)+1,status:accepted.runStatus,hasMore:true,blocked:false,error:undefined,nextPollAt:runClock.now()}));
|
|
const result=editor.updateRuntime(()=>Object.freeze({...previous,runs:readMap(runs),receipts:readMap(receipts),ledger:ledger.getSnapshot()}),root.rootRevision);if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
queueMicrotask(()=>runTracker.notify([run.id]));return;
|
|
}catch(error){ledger.result(request.id,'applied',(error as Error).message,false);const result=editor.updateRuntime(()=>Object.freeze({...previous,receipts:readMap(receipts),ledger:ledger.getSnapshot()}),root.rootRevision);if(result.status==='rejected')throw fault(result.code,result.targets);report(error);return{blocked:true};}
|
|
}
|
|
if (request.kind === 'asset.upload') {
|
|
const receipts = new Map(previous.receipts); if (status.canonical !== undefined) receipts.set(request.id, freeze(status.canonical));
|
|
try {
|
|
const intent = previous.ledger.operations.get(request.operationIds[0])?.intent;
|
|
if (intent?.operationType !== 'asset.upload' || !options.assets) throw fault('asset_interpreter_unavailable');
|
|
const resource = previous.resources.get(intent.resourceId);
|
|
if (!resource) throw fault('resource_missing');
|
|
const stored = freeze(options.assets.accept(request, status, resource));
|
|
if (stored.id !== resource.id || stored.bytes !== resource.byteLength) throw fault('asset_receipt_mismatch');
|
|
ledger.result(request.id, 'applied');
|
|
const resources = new Map(previous.resources); resources.set(resource.id, freeze({ ...resource, stored }));
|
|
const result = editor.updateRuntime(() => Object.freeze({ ...previous, receipts: readMap(receipts), resources: readMap(resources), ledger: ledger.getSnapshot() }), root.rootRevision);
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
return;
|
|
} catch (error) {
|
|
ledger.result(request.id, 'applied', (error as Error).message, false);
|
|
const result = editor.updateRuntime(() => Object.freeze({ ...previous, receipts: readMap(receipts), ledger: ledger.getSnapshot() }), root.rootRevision);
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
report(error); return { blocked: true };
|
|
}
|
|
}
|
|
const receipts = new Map(previous.receipts), conflicts = new Map(previous.conflicts);
|
|
if (status.canonical !== undefined) receipts.set(request.id, freeze(status.canonical));
|
|
try {
|
|
const action = request.kind==='run.apply' ? options.runs?.acceptAction(request,status,root) : undefined;
|
|
if(request.kind==='run.apply'&&!action?.proposal)throw fault('run_interpreter_unavailable');
|
|
const admission = request.kind === 'run.start' ? options.runs?.accept(request, status, root) : undefined;
|
|
if (request.kind === 'run.start' && !admission) throw fault('run_interpreter_unavailable');
|
|
const proposal = action?.proposal ?? admission?.proposal ?? options.persistence.canonical(request, status, root);
|
|
const writtenCanvases = admission ? [request.ownerCanvasId!] : request.canvasIds;
|
|
if (proposal.document.projectId !== root.document.projectId) throw fault('project_mismatch');
|
|
for (const canvas of writtenCanvases) {
|
|
const version = proposal.versions.get(canvas);
|
|
if (!version || version <= request.expectedVersions[canvas] || version < (previous.versions.get(canvas) ?? 0)) throw fault('stale_canonical_version', [canvas]);
|
|
}
|
|
// A codec cannot roll back an unrelated canvas while reconciling this request.
|
|
for (const [canvas, version] of previous.versions) if (!writtenCanvases.includes(canvas)) {
|
|
if (proposal.versions.get(canvas) !== version || !equal(proposal.document.canvases.get(canvas), previous.acknowledged.canvases.get(canvas)) || !equal([...proposal.document.elements.values()].filter(element => element.ownerCanvasId === canvas), [...previous.acknowledged.elements.values()].filter(element => element.ownerCanvasId === canvas))) throw fault('canonical_scope_mismatch', [canvas]);
|
|
}
|
|
ledger.result(request.id, 'applied');
|
|
const acknowledged = createDocument(proposal.document.projectId, [...proposal.document.canvases.values()], [...proposal.document.elements.values()], proposal.document.tombstones);
|
|
const document = replayPending(acknowledged, ledger.getSnapshot(), options.registry);
|
|
conflicts.delete(request.id);
|
|
const runs = new Map(previous.runs);
|
|
if (admission) {
|
|
const existing = runs.get(admission.run.id);
|
|
if (existing && (existing.requestId !== request.id || existing.operationId !== admission.run.operationId)) throw fault('run_identity_mismatch');
|
|
if (!existing) runs.set(admission.run.id, admission.run);
|
|
}
|
|
if(action){const run=runs.get(action.runId);if(!run)throw fault('run_identity_mismatch');runs.set(run.id,freeze({...run,controlEpoch:(run.controlEpoch??0)+1,appliedOutputIds:[...new Set([...(run.appliedOutputIds??[]),action.outputId!])],hasMore:true,blocked:false,error:undefined,pendingPage:undefined,nextPollAt:runClock.now()}));}
|
|
const runtime: RuntimeState = Object.freeze({ ...previous, runs: readMap(runs), ledger: ledger.getSnapshot(), acknowledged, versions: readMap(proposal.versions), receipts: readMap(receipts), conflicts: readMap(conflicts) });
|
|
const result = editor.reconcile(document, runtime, root.rootRevision);
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
if(action)queueMicrotask(()=>runTracker.notify([action.runId]));
|
|
} catch (error) {
|
|
// Preserve both the known receipt and the user's working document. No rollback or lane release.
|
|
const waiting = createLedger(previous.ledger); waiting.result(request.id, 'applied', (error as Error).message, false);
|
|
conflicts.set(request.id, (error as Error).message || 'reconcile_conflict');
|
|
const result = editor.updateRuntime(() => Object.freeze({ ...previous, ledger: waiting.getSnapshot(), receipts: readMap(receipts), conflicts: readMap(conflicts) }), root.rootRevision);
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
report(error); return { blocked: true };
|
|
}
|
|
}
|
|
const scheduler = createScheduler({ getLedger: () => editor.getSnapshot().runtime.ledger, mutate, persist,
|
|
createId: options.createId ?? (() => crypto.randomUUID()),
|
|
participants: intent => operationCanvases(intent, editor.getSnapshot().document),
|
|
compile(intent, id) {
|
|
if (intent.operationType === 'document.change') return options.persistence.compile(intent, id, editor.getSnapshot());
|
|
if (['run.start','run.cancel','run.apply'].includes(intent.operationType)) { if (!options.runs) throw fault('run_interpreter_unavailable');return options.runs.compile(intent,id,editor.getSnapshot()); }
|
|
if(intent.operationType!=='asset.upload')throw fault('operation_interpreter_unavailable');
|
|
const resource = editor.getSnapshot().runtime.resources.get(intent.resourceId);
|
|
if (!options.assets || !resource?.digest) throw fault('asset_not_ready');
|
|
return { kind: 'asset.upload', protocolVersion: 2, canvasIds: [], expectedVersions: {}, payload: { protocol_version: 2, request_id: id, resource_id: resource.id, operation_id: resource.operationId, sha256: resource.digest, byte_length: resource.byteLength, name: resource.name, mime_type: resource.mimeType } };
|
|
},
|
|
batchLimit(intents) { const snapshot = editor.getSnapshot(); return elisionBatchLimit(intents, snapshot.runtime.acknowledged, snapshot.runtime.ledger); },
|
|
elide(intents) {
|
|
const snapshot = editor.getSnapshot(), proof = findElision(intents, snapshot.runtime.acknowledged, snapshot.runtime.ledger);
|
|
if (!proof) return [];
|
|
mutate(ledger => ledger.elide(proof)); return proof.operationIds;
|
|
},
|
|
compileBatch: options.persistence.compileBatch ? (intents, id) => options.persistence.compileBatch!(intents, id, editor.getSnapshot()) : undefined,
|
|
async submit(request, signal) {
|
|
if (['run.start','run.cancel','run.apply'].includes(request.kind??'')) return options.runs ? network.run(signal, () => options.runs!.submit(request,signal)) : { outcome: 'unresolved', blocked: true, error: 'run_interpreter_unavailable' };
|
|
if (request.kind !== 'asset.upload') return network.run(signal, () => options.persistence.submit(request, signal));
|
|
if (!options.assets) return { outcome: 'unresolved', blocked: true, error: 'asset_interpreter_unavailable' };
|
|
const payload = JSON.parse(request.body), bytes = await options.storage.readFile(leader, payload.resource_id);
|
|
if (!bytes || bytes.size !== payload.byte_length || await digest(bytes,signal) !== payload.sha256) return { outcome: 'unresolved', blocked: true, error: 'resource_bytes_unavailable' };
|
|
return network.run(signal, () => options.assets!.upload(request, bytes, signal));
|
|
},
|
|
query: (request, signal) => network.run(signal, () => ['run.start','run.cancel','run.apply'].includes(request.kind??'') ? options.runs?.query(request,signal) ?? Promise.resolve({ outcome: 'unresolved', blocked: true, error: 'run_interpreter_unavailable' }) : request.kind === 'asset.upload' ? options.assets?.query(request, signal) ?? Promise.resolve({ outcome: 'unresolved', blocked: true, error: 'asset_interpreter_unavailable' }) : options.persistence.query(request, signal)),
|
|
supportsRequest: request => ['run.start','run.cancel','run.apply'].includes(request.kind??'') ? !!options.runs && request.protocolVersion === 2 : request.kind === 'asset.upload' ? !!options.assets && request.protocolVersion === 2 : options.persistence.supportsRequest?.(request) ?? request.protocolVersion === 1, complete, onError: report, clock: options.clock,
|
|
});
|
|
function updateRun(id: Id, reduce: (run: RunRecord) => RunRecord) {
|
|
const result = editor.updateRuntime(previous => { const current = previous.runs.get(id);if(!current)throw fault('run_missing');const runs = new Map(previous.runs);runs.set(id,freeze(reduce(current)));return Object.freeze({...previous,runs:readMap(runs)}); });
|
|
if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
}
|
|
function acceptRunPage(run: RunRecord, page: RunPage) {
|
|
const root=editor.getSnapshot(),previous=root.runtime,current=previous.runs.get(run.id);
|
|
if(!current || current.requestId!==run.requestId)throw fault('run_identity_mismatch');
|
|
if((current.controlEpoch??0)!==(run.controlEpoch??0))return;
|
|
if(current.cursor!==run.cursor)throw fault('run_identity_mismatch');
|
|
const outputEvents=new Map(current.outputEvents.map(event=>[event.step_id,event]));
|
|
for(const event of page.events)if(event.type==='step.output')outputEvents.set(event.step_id,event);
|
|
let acknowledged=previous.acknowledged,versions=previous.versions;
|
|
const conflicts=new Map(previous.conflicts);
|
|
try {
|
|
for(const event of page.events) {
|
|
if(event.seq<=current.cursor || event.type!=='step.applied'&&!(event.type==='step.output'&&event.model&&typeof event.model==='object'&&!Array.isArray(event.model)&&event.model.complete===true))continue;
|
|
const canvas=event.board_id as Id,version=event.canvas_version as number;
|
|
if(!Number.isSafeInteger(version)||version<1)throw fault('invalid_run_response');
|
|
// A later document receipt already includes this event; never rewind its participant.
|
|
if(version<=(versions.get(canvas)??0))continue;
|
|
const model=event.model as {[key:string]:Json}|undefined,context=model?.complete===true,participants=context?Object.keys(model.versions as {[key:string]:Json}):[canvas];
|
|
if([...previous.ledger.requests.values()].some(request=>request.phase!=='resolved'&&request.canvasIds.some(id=>participants.includes(id))))throw fault('run_waiting_for_receipts');
|
|
if(!options.runs)throw fault('run_interpreter_unavailable');
|
|
const snapshot={...root,runtime:{...previous,acknowledged,versions}};
|
|
const proposal=options.runs.canonical(event,snapshot);
|
|
for(const record of previous.ledger.operations.values())if(record.phase!=='resolved')for(const change of record.intent.changes)if(change.kind==='field'&&(change.field==='geometry'||change.field==='path')){const before=acknowledged.elements.get(change.target.id),after=proposal.document.elements.get(change.target.id);if(before&&after&&before.ownerCanvasId!==after.ownerCanvasId)throw fault('ownership_conflict',[change.target.id]);}
|
|
acknowledged=proposal.document;versions=proposal.versions;
|
|
}
|
|
const document=replayPending(acknowledged,previous.ledger,options.registry),runs=new Map(previous.runs);
|
|
const appliedOutputIds=[...new Set([...(current.appliedOutputIds??[]),...page.events.filter(event=>event.type==='step.applied'&&typeof event.output_id==='string').map(event=>event.output_id as Id)])];
|
|
runs.set(run.id,freeze({...current,appliedOutputIds,cursor:page.next,status:page.status,hasMore:page.hasMore,outputs:page.outputs,outputEvents:[...outputEvents.values()],steps:page.steps,error:page.error,blocked:false,pendingPage:undefined}));
|
|
conflicts.delete(`run:${run.id}`);
|
|
const result=editor.reconcile(document,Object.freeze({...previous,acknowledged,versions:readMap(versions),runs:readMap(runs),conflicts:readMap(conflicts)}),root.rootRevision);
|
|
if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
} catch(error) {
|
|
const code=(error as Error).message;
|
|
// Save the page as evidence without overwriting local content or advancing the cursor.
|
|
const result=editor.updateRuntime(runtime=>{const runs=new Map(runtime.runs);runs.set(run.id,freeze({...current,outputs:page.outputs,outputEvents:[...outputEvents.values()],steps:page.steps,pendingPage:page,error:code,blocked:code!=='run_waiting_for_receipts'}));if(code!=='run_waiting_for_receipts')conflicts.set(`run:${run.id}`,code);return Object.freeze({...runtime,runs:readMap(runs),conflicts:readMap(conflicts)});},root.rootRevision);
|
|
if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
if(code!=='run_waiting_for_receipts')report(error);
|
|
}
|
|
}
|
|
const runTracker=createRunTracker({clock:runClock,getRuns:()=>editor.getSnapshot().runtime.runs,persist,update:updateRun,accept:acceptRunPage,
|
|
poll:(run,signal)=>options.runs ? network.run(signal,()=>options.runs!.poll(run,signal)) : Promise.reject(fault('run_interpreter_unavailable')),onError:report});
|
|
const trackedRuns=new Set(initial.runs.keys());
|
|
const sessions = createSessions(editor);
|
|
const unsubscribe = editor.subscribe((commit, snapshot) => {
|
|
pending.set(snapshot.rootRevision, snapshot);
|
|
const addedRuns=[...snapshot.runtime.runs.keys()].filter(id=>!trackedRuns.has(id));for(const id of addedRuns)trackedRuns.add(id);
|
|
if(addedRuns.length)queueMicrotask(()=>runTracker.notify(addedRuns));
|
|
if (!scheduled) { scheduled = true; queueMicrotask(() => { scheduled = false; void persist().catch(report); }); }
|
|
// Intents already exist in this root; notification only schedules their IDs.
|
|
const operationIds = [...commit.operationIds, ...staged.map(resource => resource.operationId)];
|
|
queueMicrotask(() => { if (!closing && !closed) { scheduler.notify(operationIds); if (operationIds.length) prepareDigests(); } });
|
|
});
|
|
async function digest(bytes:Blob,signal?:AbortSignal){return sourceDigest(bytes,signal);}
|
|
function prepareDigests() {
|
|
if (closing || closed) return;
|
|
for (const resource of editor.getSnapshot().runtime.resources.values()) {
|
|
if (digestTasks.size >= 2) break;
|
|
if (resource.digest || digestTasks.has(resource.id)) continue;
|
|
const operation = editor.getSnapshot().runtime.ledger.operations.get(resource.operationId);
|
|
if (operation?.phase !== 'blocked' || !operation.blockers.includes('waiting_digest')) continue;
|
|
const task = Promise.resolve().then(async () => {
|
|
const bytes = fileWrites.get(resource.id) ?? await options.storage.readFile(leader, resource.id);
|
|
if (!bytes || bytes.size !== resource.byteLength) throw fault('resource_bytes_unavailable', [resource.id]);
|
|
const hash = await digest(bytes);
|
|
if (closing || closed) return;
|
|
const result = editor.updateRuntime(previous => {
|
|
if (previous.resources.get(resource.id) !== resource) throw fault('resource_identity_conflict', [resource.id]);
|
|
const resources = new Map(previous.resources), ledger = createLedger(previous.ledger);
|
|
resources.set(resource.id, freeze({ ...resource, digest: hash })); ledger.block(resource.operationId, []);
|
|
return Object.freeze({ ...previous, resources: readMap(resources), ledger: ledger.getSnapshot() });
|
|
});
|
|
if (result.status === 'rejected') throw fault(result.code, result.targets);
|
|
scheduler.notify([resource.operationId]);
|
|
}).catch(error => { if (!closing && !closed) { const code=(error as {code?:string}).code;mutate(ledger => ledger.block(resource.operationId, [code&&digestFailures.has(code)?code:'resource_bytes_unavailable'])); report(error); } }).finally(() => { digestTasks.delete(resource.id); prepareDigests(); });
|
|
digestTasks.set(resource.id, task);
|
|
}
|
|
}
|
|
function queueRunAction(operationType:'run.cancel'|'run.apply',action:RunCancelInput|RunApplyInput):Result {
|
|
const root=editor.getSnapshot();let sequence=1;for(const record of root.runtime.ledger.operations.values())sequence=Math.max(sequence,record.intent.sequence+1);
|
|
const id=createId(),intent={id,operationType,action,operationSchemaVersion:1,sequence,origin:'user',canvasIds:operationType==='run.apply'?[(action as RunApplyInput).targetCanvasId]:[],changes:[],dependencies:operationType==='run.cancel'?[]:[...root.runtime.ledger.operations.values()].filter(record=>record.phase!=='resolved').map(record=>record.intent.id)} as OperationIntent;
|
|
const result=editor.updateRuntime(previous=>{const ledger=createLedger(previous.ledger);ledger.add(freeze(intent),{});return Object.freeze({...previous,ledger:ledger.getSnapshot()});},root.rootRevision);
|
|
if(result.status==='rejected')return result;queueMicrotask(()=>{if(!closing&&!closed)scheduler.notify([id]);});return{status:'applied',revision:root.revision,operationIds:[id]};
|
|
}
|
|
function getImport(id:Id){const job=editor.getSnapshot().runtime.imports?.get(id);if(!job)throw fault('import_missing',[id]);return job;}
|
|
function publishImport(job:ImportJob,expectedGeneration:number){
|
|
assertWritable();const permission=options.policy?.({type:'changes.apply',changes:[]},editor.getSnapshot().document);if(permission&&!permission.enabled)throw fault(permission.code,permission.targets);
|
|
const result=editor.updateRuntime(previous=>{const imports=new Map(previous.imports??[]);if(imports.get(job.id)?.generation!==expectedGeneration)throw fault('stale_import_job');imports.set(job.id,job.version===3?job:freeze({...job,version:3 as const}));return Object.freeze({...previous,imports:readMap(imports)});});if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
}
|
|
const deferredImportLoads=new Set<Id>();
|
|
function holdImports(){for(const id of importLoads.keys())if(!importRunners.has(id))deferredImportLoads.add(id);const token=Symbol(),releases=new Map<Id,()=>void>();importHolds.set(token,releases);for(const controller of preparationControllers.values())controller.abort();for(const[id,runner]of importRunners)releases.set(id,runner.hold());return()=>{if(!importHolds.delete(token))return;for(const release of releases.values())release();if(!closing&&!closed)for(const job of editor.getSnapshot().runtime.imports?.values()??[])if(['running','preparing'].includes(job.status)&&!importRunners.has(job.id))void loadImport(job.id);};}
|
|
async function materializeCopy(id:Id,bytes:Blob,controller:AbortController){
|
|
const admitted=getImport(id),preparation=admitted.preparation;
|
|
if(!preparation||admitted.source?.kind!=='duplicate-snapshot')throw fault('invalid_copy_preparation');
|
|
const check=()=>{const job=getImport(id);if(controller.signal.aborted||closing||closed||importHolds.size||job.status!=='preparing'||job.sourceFingerprint!==admitted.sourceFingerprint)throw fault('copy_aborted');return job;};
|
|
await persist();check();const indexed=admitted.source.snapshotVersion===2?await openIndexedCopySnapshot(bytes,options.scope.projectId,options.registry,controller.signal):undefined,document=indexed?.document??await decodeCopySnapshot(bytes,options.scope.projectId,options.registry,controller.signal);
|
|
if(copyRegistrySignature(document,options.registry)!==preparation.registrySignature)throw fault('copy_interpreter_changed');
|
|
if(preparation.version===3||preparation.version===4){
|
|
const state=await prepareDuplicateStream(document,options.registry,preparation.selection,{worldOffset:preparation.worldOffset,createId},{sourceToken:admitted.source.sha256!,schemaToken:preparation.registrySignature,checkpoint:preparation.planner,topologyOnly:!!indexed},{signal:controller.signal,checkpoint:async state=>{
|
|
const job=check(),previous=job.preparation!;if(previous.planner&&state.steps<=previous.steps)return;
|
|
publishImport(freeze({...job,generation:job.generation+1,preparation:{...previous,steps:state.steps,allocationIds:[...state.elementIds,...state.canvasIds].map(pair=>pair[1]),planner:state}}),job.generation);await persist();check();
|
|
}}),job=check();assertNativeImportTarget(job,editor.getSnapshot().document);
|
|
const stableIds=Object.fromEntries([...state.elementIds.map(([old,id])=>[`element:${old}`,id]),...state.canvasIds.map(([old,id])=>[`canvas:${old}`,id])]),next={...job,generation:job.generation+1,parserVersion:2,status:'running' as const,stableIds,source:{...job.source!,kind:'duplicate-plan' as const,plan:state,copy:{sourceRevision:job.source!.copy!.sourceRevision,roots:state.roots.map(old=>stableIds[`element:${old}`])}}};delete next.preparation;delete next.error;
|
|
publishImport(freeze(next),job.generation);return{job:getImport(id),bytes,document,indexed};
|
|
}
|
|
const allocationIds=[...preparation.allocationIds];let cursor=0;
|
|
const plan=preparation.version===2?await planDuplicateResumable(document,options.registry,preparation.selection,{worldOffset:preparation.worldOffset,createId},{sourceToken:admitted.source.sha256!,schemaToken:preparation.registrySignature,checkpoint:preparation.planner},{signal:controller.signal,checkpoint:async state=>{
|
|
const job=check(),previous=job.preparation!;if(previous.planner&&state.steps<=previous.steps)return;
|
|
publishImport(freeze({...job,generation:job.generation+1,preparation:{...previous,steps:state.steps,allocationIds:[...state.elementIds,...state.canvasIds].map(pair=>pair[1]),planner:state}}),job.generation);await persist();check();
|
|
}}):await planDuplicateAsync(document,options.registry,preparation.selection,{worldOffset:preparation.worldOffset,createId:()=>{const index=cursor++;if(index<allocationIds.length)return allocationIds[index];const id=createId();allocationIds.push(id);return id;}},{signal:controller.signal,checkpoint:async steps=>{
|
|
const job=check(),previous=job.preparation!;
|
|
if(steps<=previous.steps&&allocationIds.length===previous.allocationIds.length)return;
|
|
publishImport(freeze({...job,generation:job.generation+1,preparation:{...previous,steps:Math.max(previous.steps,steps),allocationIds:[...allocationIds]}}),job.generation);await persist();check();
|
|
}});
|
|
check();if(preparation.version===1&&cursor!==allocationIds.length)throw fault('copy_interpreter_changed');
|
|
const encoded=await encodeDuplicateSource(document,options.registry,plan,controller.signal),sha256=await sourceDigest(encoded,controller.signal),job=check();assertWritable();assertNativeImportTarget(job,editor.getSnapshot().document);
|
|
const permission=options.policy?.({type:'changes.apply',changes:plan.changes},editor.getSnapshot().document);if(permission&&!permission.enabled)throw fault(permission.code,permission.targets);
|
|
const fileId=createId(),runtime=editor.getSnapshot().runtime;if(!fileId||fileWrites.has(fileId)||runtime.resources.has(fileId)||[...(runtime.imports?.values()??[])].some(job=>job.source?.fileId===fileId))throw fault('import_identity_conflict');
|
|
const stableIds=Object.fromEntries([...Object.entries(plan.elementIds).map(([old,id])=>[`element:${old}`,id]),...Object.entries(plan.canvasIds).map(([old,id])=>[`canvas:${old}`,id])]);
|
|
const next={...job,generation:job.generation+1,status:'running' as const,stableIds,sourceFingerprint:`local-file:${fileId}:${encoded.size}`,source:{...job.source!,previousFiles:[...(job.source!.previousFiles??[]),{fileId:job.source!.fileId,byteLength:job.source!.byteLength,...(job.source!.sha256?{sha256:job.source!.sha256}:{})}],kind:'duplicate-ndjson' as const,fileId,byteLength:encoded.size,sha256,integrityVersion:1 as const,copy:{sourceRevision:job.source!.copy!.sourceRevision,roots:plan.roots}}};delete next.preparation;delete next.error;
|
|
fileWrites.set(fileId,encoded);try{publishImport(freeze(next),job.generation);}catch(error){fileWrites.delete(fileId);throw error;}
|
|
return{job:getImport(id),bytes:encoded,document:undefined,indexed:undefined};
|
|
}
|
|
function loadImport(id:Id):Promise<void>{
|
|
if(importLoads.has(id))return importLoads.get(id)!;
|
|
if(importRunners.has(id)){void importRunners.get(id)!.start();return Promise.resolve();}
|
|
deferredImportLoads.delete(id);
|
|
let expectedFingerprint=getImport(id).sourceFingerprint;
|
|
const preparationController=new AbortController();if(['duplicate-snapshot','duplicate-plan'].includes(getImport(id).source?.kind??''))preparationControllers.set(id,preparationController);
|
|
const task=(async()=>{
|
|
let job=getImport(id),source=job.source;if(!source||!['native-ndjson','duplicate-ndjson','duplicate-snapshot','duplicate-plan'].includes(source.kind)||job.parserVersion!==(source.kind==='duplicate-plan'?2:1))throw fault('import_interpreter_unavailable');
|
|
let bytes=fileWrites.get(source.fileId)??await options.storage.readFile(leader,source.fileId);
|
|
if(closing||closed)return;
|
|
const latest=getImport(id);if(latest.sourceFingerprint!==job.sourceFingerprint||latest.source?.fileId!==source.fileId||['completed','partial','cancelled'].includes(latest.status))return;
|
|
if(!bytes)throw fault('import_source_unavailable');if(bytes.size!==source.byteLength)throw fault('import_source_changed');
|
|
if(source.integrityVersion!==1)throw fault('import_source_integrity_unavailable');
|
|
const sha256=await sourceDigest(bytes,preparationController.signal);
|
|
if(closing||closed)return;
|
|
const verified=getImport(id);if(verified.generation!==latest.generation||verified.sourceFingerprint!==job.sourceFingerprint||verified.source?.fileId!==source.fileId||['completed','partial','cancelled','paused'].includes(verified.status))return;
|
|
if(importHolds.size){deferredImportLoads.add(id);return;}
|
|
if(source.sha256&&source.sha256!==sha256)throw fault('import_source_changed');
|
|
if(!source.sha256){publishImport(freeze({...verified,generation:verified.generation+1,source:{...source,sha256}}),verified.generation);job=getImport(id);source=job.source!;}else job=verified;
|
|
let copyDocument:Document|undefined,indexed:IndexedCopySnapshot|undefined;
|
|
if(source.kind==='duplicate-snapshot'){if(preparationController.signal.aborted||importHolds.size||latest.status!=='preparing')return;const materialized=await materializeCopy(id,bytes,preparationController);job=materialized.job;source=job.source!;bytes=materialized.bytes;copyDocument=materialized.document;indexed=materialized.indexed;expectedFingerprint=job.sourceFingerprint;}
|
|
if(source.kind==='duplicate-plan'&&source.snapshotVersion===2){indexed??=await openIndexedCopySnapshot(bytes,options.scope.projectId,options.registry,preparationController.signal);copyDocument=indexed.document;}
|
|
const importSource=source.kind==='duplicate-plan'?createDuplicatePlanSource(copyDocument??await decodeCopySnapshot(bytes,options.scope.projectId,options.registry,preparationController.signal),options.registry,source.plan!,job.sourceFingerprint,indexed?.readElement):createNdjsonImportSource({bytes,fingerprint:job.sourceFingerprint});
|
|
if(closing||closed||preparationController.signal.aborted||getImport(id).generation!==job.generation)return;
|
|
if(importHolds.size){deferredImportLoads.add(id);return;}
|
|
const runner=createImportRunner({optimisticLocal:true,awaitDurabilityBudget:stage=>pending.size>=32||stage!=='parsed'&&persistenceFailed?persist():undefined,source:importSource,getJob:()=>getImport(id),createId,
|
|
publish:publishImport,prepare:(line,job,reserve)=>['duplicate-ndjson','duplicate-plan'].includes(job.source?.kind??'')?prepareDuplicateImport(line,job,reserve,options.registry):prepareNativeImport(line,job,reserve,editor.getSnapshot().document,options.registry),persist,onError:report,
|
|
commit(units,next,expected){
|
|
assertWritable();if(importing)throw fault('reentrant_dispatch');const current=getImport(id);if(current.generation!==expected)throw fault('stale_import_job');
|
|
try{assertNativeImportTarget(current,editor.getSnapshot().document);for(const unit of units){assertNativeImportDependencies(current,editor.getSnapshot().document,unit.dependencies);if(['duplicate-ndjson','duplicate-plan'].includes(current.source?.kind??''))assertDuplicateExternal({cursor:0,nextCursor:1,key:unit.key,value:unit.guard},current,editor.getSnapshot().document,options.registry);}}catch(error){return reject(error);}
|
|
importing={job:next,expectedGeneration:expected};
|
|
try{return editor.transaction(tx=>{for(const unit of units)for(const change of unit.changes){if(change.kind==='element'&&change.before===null&&change.after)tx.dispatch({type:'element.create',element:change.after});else if(change.kind==='canvas'&&change.before===null&&change.after)tx.dispatch({type:'canvas.create',canvas:change.after});else throw fault('invalid_native_import_unit');}},{label:['duplicate-ndjson','duplicate-plan'].includes(current.source?.kind??'')?'Duplicate selection':'Import canvas content',groupId:`import:${id}`});}finally{importing=undefined;}
|
|
},
|
|
});
|
|
importRunners.set(id,runner);for(const releases of importHolds.values())releases.set(id,runner.hold());
|
|
if(getImport(id).status==='running')void runner.start();
|
|
})().catch(error=>{if(preparationController.signal.aborted)return;if(!closing&&!closed){try{const job=getImport(id);if(job.sourceFingerprint!==expectedFingerprint||['completed','partial','cancelled','paused'].includes(job.status))return;publishImport(freeze({...job,generation:job.generation+1,status:'paused',error:(error as {code?:string}).code??'import_failed'}),job.generation);}catch{/* Recovery/identity fences retain the original job. */}report(error);}}).finally(()=>{preparationControllers.delete(id);importLoads.delete(id);if(!['running','preparing'].includes(getImport(id).status))deferredImportLoads.delete(id);if(!closing&&!closed&&!importHolds.size&&deferredImportLoads.delete(id)&&!importRunners.has(id)&&['running','preparing'].includes(getImport(id).status))queueMicrotask(()=>{if(!closing&&!closed)void loadImport(id);});});
|
|
importLoads.set(id,task);return task;
|
|
}
|
|
const imports=Object.freeze({
|
|
getJobs:()=>readMap(editor.getSnapshot().runtime.imports??new Map()),
|
|
openSource:openImportSource,
|
|
startNdjson(bytes:Blob,targetCanvasId:Id):Id{
|
|
assertWritable();const permission=options.policy?.({type:'changes.apply',changes:[]},editor.getSnapshot().document);if(permission&&!permission.enabled)throw fault(permission.code,permission.targets);const canvas=editor.getSnapshot().document.canvases.get(targetCanvasId);if(!canvas)throw fault('canvas_not_loaded',[targetCanvasId]);if(!(bytes instanceof Blob)||bytes.size>64*1024*1024)throw fault('invalid_import_source');
|
|
const id=createId(),fileId=createId(),current=editor.getSnapshot().runtime;if(!id||!fileId||id===fileId||current.imports?.has(id)||current.resources.has(fileId)||current.orphanFiles?.has(fileId)||fileWrites.has(fileId)||importFiles(current.imports).has(fileId))throw fault('import_identity_conflict');
|
|
const entry=canvas.parent?editor.getSnapshot().document.elements.get(canvas.parent.entryElementId)!:undefined;
|
|
const job=freeze({...createImportJob({id,projectId:options.scope.projectId,sourceFingerprint:`local-file:${fileId}:${bytes.size}`,parserVersion:1,source:{kind:'native-ndjson',name:((bytes as Blob&{name?:string}).name||'画布数据').slice(0,255),fileId,byteLength:bytes.size,targetCanvasId,...(entry?{targetEntry:{id:entry.id,incarnation:entry.incarnation}}:{})}}),status:'running' as const});
|
|
fileWrites.set(fileId,bytes);
|
|
const result=editor.updateRuntime(previous=>{const jobs=new Map(previous.imports??[]);jobs.set(id,job);return Object.freeze({...previous,imports:readMap(jobs)});});
|
|
if(result.status==='rejected'){fileWrites.delete(fileId);throw fault(result.code,result.targets);}void loadImport(id);return id;
|
|
},
|
|
async duplicate(selection:readonly Target[],settings:{readonly worldOffset?:Point;readonly signal?:AbortSignal;readonly viewCanvasId?:Id}={}):Promise<Id>{
|
|
assertWritable();if(collectionReservations.size)throw fault('resource_collection_in_progress',[...collectionReservations]);
|
|
const permission=options.policy?.({type:'changes.apply',changes:[]},editor.getSnapshot().document);if(permission&&!permission.enabled)throw fault(permission.code,permission.targets);
|
|
if([...editor.getSnapshot().runtime.resources.values(),...(editor.getSnapshot().runtime.orphanFiles?.values()??[])].some(file=>file.retirement&&file.retirement.purgedAt===undefined)){
|
|
const reset=editor.updateRuntime(previous=>{const resources=new Map(previous.resources);for(const [id,resource]of resources)if(resource.retirement&&resource.retirement.purgedAt===undefined){const {retirement:_,...kept}=resource;resources.set(id,freeze(kept));}const files=new Map(previous.orphanFiles);for(const [id,file]of files)if(file.retirement&&file.retirement.purgedAt===undefined){const {retirement:_,...kept}=file;files.set(id,freeze(kept));}return Object.freeze({...previous,resources:readMap(resources),...(previous.orphanFiles?{orphanFiles:readMap(files)}:{})});});if(reset.status==='rejected')throw fault(reset.code,reset.targets);
|
|
}
|
|
const captured=editor.getSnapshot(),target=settings.viewCanvasId??(selection[0]?captured.document.elements.get(selection[0].id)?.ownerCanvasId:undefined),signal=settings.signal,controller=new AbortController(),abort=()=>controller.abort();
|
|
const targets=freeze(clone(selection)),offset=freeze(clone(settings.worldOffset??{x:32,y:32}));
|
|
for(const selected of targets){const element=captured.document.elements.get(selected.id);if(!element||element.incarnation!==selected.incarnation)throw fault('stale_incarnation',[selected.id]);}if(![offset.x,offset.y].every(Number.isFinite))throw fault('invalid_copy_offset');
|
|
signal?.addEventListener('abort',abort,{once:true});if(signal?.aborted)controller.abort();
|
|
const task=(async()=>{
|
|
if(!target||!targets.length)throw fault('empty_copy_selection');
|
|
const bytes=await encodeIndexedCopySnapshot(captured.document,controller.signal);assertWritable();if(controller.signal.aborted)throw fault('copy_aborted');
|
|
const canvas=captured.document.canvases.get(target);if(!canvas)throw fault('canvas_not_loaded',[target]);
|
|
const id=createId(),fileId=createId(),current=editor.getSnapshot().runtime;
|
|
if(!id||!fileId||id===fileId||current.imports?.has(id)||current.resources.has(fileId)||current.orphanFiles?.has(fileId)||fileWrites.has(fileId)||importFiles(current.imports).has(fileId))throw fault('import_identity_conflict');
|
|
const entry=canvas.parent?captured.document.elements.get(canvas.parent.entryElementId)!:undefined;
|
|
const job=freeze({...createImportJob({id,projectId:options.scope.projectId,sourceFingerprint:`local-file:${fileId}:${bytes.size}`,parserVersion:1,source:{kind:'duplicate-snapshot',snapshotVersion:2,name:'复制选中内容',fileId,byteLength:bytes.size,targetCanvasId:target,copy:{sourceRevision:captured.revision,roots:[]},...(entry?{targetEntry:{id:entry.id,incarnation:entry.incarnation}}:{})}}),status:'preparing' as const,preparation:{version:4 as const,registrySignature:copyRegistrySignature(captured.document,options.registry),selection:targets,worldOffset:offset,allocationIds:[],steps:0}});
|
|
fileWrites.set(fileId,bytes);const result=editor.updateRuntime(previous=>{const jobs=new Map(previous.imports??[]);jobs.set(id,job);return Object.freeze({...previous,imports:readMap(jobs)});});
|
|
if(result.status==='rejected'){fileWrites.delete(fileId);throw fault(result.code,result.targets);}void loadImport(id);return id;
|
|
})();
|
|
copyPreparations.set(controller,task);void task.finally(()=>{copyPreparations.delete(controller);signal?.removeEventListener('abort',abort);}).catch(()=>{});return task;
|
|
},
|
|
async pause(id:Id){assertWritable();const runner=importRunners.get(id);if(runner)await runner.pause();else{const job=getImport(id);if(['running','preparing'].includes(job.status)){preparationControllers.get(id)?.abort();publishImport(freeze({...job,generation:job.generation+1,status:'paused'}),job.generation);await persist();}}},
|
|
async resume(id:Id){assertWritable();const job=getImport(id);if(['completed','partial','cancelled'].includes(job.status))return;if(['running','preparing'].includes(job.status)){await loadImport(id);return;}await importLoads.get(id);await importRunners.get(id)?.settle();await persist();await scheduler.resume();assertWritable();const current=getImport(id);if(current.status!=='paused')return;const next={...current,generation:current.generation+1,status:current.source?.kind==='duplicate-snapshot'?'preparing' as const:'running' as const};delete next.error;publishImport(freeze(next),current.generation);await loadImport(id);},
|
|
async cancel(id:Id){assertWritable();const runner=importRunners.get(id);if(runner)await runner.cancel();else{const job=getImport(id);if(['running','preparing','paused'].includes(job.status)){preparationControllers.get(id)?.abort();const next={...job,generation:job.generation+1,status:'cancelled' as const};delete next.error;publishImport(freeze(next),job.generation);await persist();}}},
|
|
});
|
|
scheduler.start(); prepareDigests(); runTracker.notify([...initial.runs.keys()]);
|
|
for(const job of initial.imports?.values()??[])if(['running','preparing'].includes(job.status))void loadImport(job.id);
|
|
return Object.freeze({
|
|
editor, sessions, imports, collectResources,collectImportSources,inventoryLocalFiles,collectOrphanFiles,
|
|
getResourcePins:()=>resourceRetentionPins(editor.getSnapshot(),options.registry,displayPins,admissionPins(editor.getSnapshot())),
|
|
/** Read/preview under a scheduling hold. No request is rewritten or declared resolved here. */
|
|
async prepareRecovery(): Promise<RecoverySession> {
|
|
assertWritable();
|
|
if(!options.persistence.read)throw fault('canonical_reader_unavailable');
|
|
const releaseScheduler=scheduler.hold(),releaseRuns=runTracker.hold(),releaseImports=holdImports(),controller=new AbortController();
|
|
const active={controller,release(){if(recovery!==active)return;recovery=undefined;releaseRuns();releaseScheduler();releaseImports();},async cancel(){controller.abort();active.release();}};
|
|
recovery=active;
|
|
sessions.cancel('recovery');
|
|
const assertCurrent=()=>{if(closing||closed)throw fault('engine_closing');if(recovery!==active||controller.signal.aborted)throw fault('recovery_session_closed');};
|
|
try {
|
|
// Both holds are acquired before awaiting either lane; already admitted callbacks finish normally.
|
|
await Promise.all([...importLoads.values()]);assertCurrent();await Promise.all([scheduler.settle(),runTracker.settle(),...[...importRunners.values()].map(runner=>runner.settle())]);assertCurrent();
|
|
while(digestTasks.size){await Promise.all([...digestTasks.values()]);assertCurrent();}
|
|
await persist();assertCurrent();
|
|
const staged=stageAppliedRecovery(editor.getSnapshot(),{persistence:options.persistence,runs:options.runs,assets:options.assets,now:runClock.now()});
|
|
const root=staged.snapshot,previous=root.runtime;
|
|
const loaded=await network.run(controller.signal,()=>options.persistence.read!(controller.signal));assertCurrent();
|
|
if(editor.getSnapshot().rootRevision!==root.rootRevision)throw fault('stale_plan');
|
|
validateCanonicalRead(previous.acknowledged,previous.versions,loaded.document,loaded.versions,options.registry);
|
|
const acknowledged=createDocument(loaded.document.projectId,[...loaded.document.canvases.values()],[...loaded.document.elements.values()],loaded.document.tombstones);
|
|
const canonical=Object.freeze({document:acknowledged,versions:readMap(loaded.versions)});staged.assertCanonical(canonical);
|
|
let working:Document|undefined,conflict:RecoverySession['conflict'];
|
|
try{working=replayPending(acknowledged,previous.ledger,options.registry);}catch(error){const rejected=reject(error);conflict=freeze({code:rejected.code,targets:rejected.targets});}
|
|
let committed:ConflictPlan|'refresh'|undefined,committedIds:readonly Id[]=[];
|
|
const plans=new WeakSet<ConflictPlan>();
|
|
const finish=async()=>{await persist();assertCurrent();await scheduler.resume();assertCurrent();scheduler.notify(committedIds);runTracker.notify(staged.runIds);active.release();return{status:'applied' as const,revision:editor.getSnapshot().revision,operationIds:committedIds};};
|
|
active.cancel=async()=>{if(recovery!==active)return;if(committed){await finish();return;}active.release();};
|
|
return Object.freeze({baseRootRevision:root.rootRevision,canonical,acknowledgedRequestIds:staged.requestIds,
|
|
pendingOperationIds:Object.freeze([...previous.ledger.operations.values()].filter(record=>record.phase!=='resolved').map(record=>record.intent.id)),
|
|
...(conflict?{conflict}:{}),
|
|
plan(choices:ReadonlyMap<Id,RecoveryChoice>){
|
|
assertCurrent();if(committed)throw fault('recovery_already_committed');if(editor.getSnapshot().rootRevision!==root.rootRevision)throw fault('stale_plan');
|
|
const plan=planConflictRecovery(root,canonical,choices,options.registry,createId,options.historyLimit??100);plans.add(plan);return plan;
|
|
},
|
|
async resolve(plan:ConflictPlan):Promise<Result>{
|
|
assertCurrent();if(!plans.has(plan))throw fault('invalid_recovery_plan');if(committed&&committed!==plan)throw fault('recovery_already_committed');
|
|
if(!committed){
|
|
const permission=options.policy?.({type:'changes.apply',changes:[]},plan.document);if(permission&&!permission.enabled)return{status:'rejected',code:permission.code,targets:permission.targets};
|
|
for(const id of plan.operationIds){const intent=plan.operations.get(id)!;const allowed=options.policy?.({type:'changes.apply',changes:intent.changes},plan.document);if(allowed&&!allowed.enabled)return{status:'rejected',code:allowed.code,targets:allowed.targets};
|
|
if(intent.operationType==='run.apply'){const run=previous.runs.get(intent.action.runId);if(!run||run.blocked||run.status!=='conflict'||!runContainsTarget(run,intent.action.target))return{status:'rejected',code:'output_not_applicable',targets:[intent.action.target.id]};}}
|
|
const recoveries=new Map(previous.recoveries),resourcePins=new Map(previous.resourcePins),conflicts=new Map(previous.conflicts);recoveries.set(plan.id,plan.audit);resourcePins.set(`recovery:${plan.id}`,plan.resourceIds);conflicts.delete('refresh');
|
|
for(const decision of plan.audit.decisions){const requestId=previous.ledger.operations.get(decision.operationId)?.requestId;if(requestId)conflicts.delete(requestId);}
|
|
const result=editor.reconcile(plan.document,Object.freeze({...previous,ledger:plan.ledger,acknowledged,versions:canonical.versions,recoveries:readMap(recoveries),resourcePins:readMap(resourcePins),conflicts:readMap(conflicts)}),root.rootRevision,plan);
|
|
if(result.status==='rejected')return result;committed=plan;committedIds=plan.operationIds;
|
|
}
|
|
return finish();
|
|
},
|
|
async apply():Promise<Result>{
|
|
assertCurrent();
|
|
if(committed&&committed!=='refresh')throw fault('recovery_already_committed');
|
|
if(conflict)return{status:'rejected',...conflict};
|
|
if(!committed){
|
|
const conflicts=new Map(previous.conflicts);conflicts.delete('refresh');
|
|
const result=editor.reconcile(working!,Object.freeze({...previous,acknowledged,versions:canonical.versions,conflicts:readMap(conflicts)}),root.rootRevision);
|
|
if(result.status==='rejected')return result;
|
|
committed='refresh';
|
|
}
|
|
// Persistence failure retains the hold; apply/cancel can retry this barrier without republishing.
|
|
return finish();
|
|
},
|
|
cancel:()=>active.cancel(),
|
|
});
|
|
}catch(error){active.release();throw error;}
|
|
},
|
|
models(boardId: Id, signal: AbortSignal) {
|
|
if(closing||closed||!options.runs)return Promise.reject(fault('run_interpreter_unavailable'));
|
|
if(!editor.getSnapshot().document.canvases.has(boardId))return Promise.reject(fault('canvas_missing'));
|
|
return network.run(signal,()=>options.runs!.catalog(boardId,signal));
|
|
},
|
|
cancelRun(runId:Id):Result {
|
|
try{
|
|
assertWritable();if(!options.runs)throw fault('run_interpreter_unavailable');
|
|
const root=editor.getSnapshot(),run=root.runtime.runs.get(runId);if(!run)throw fault('run_missing');
|
|
const allowed=options.policy?.({type:'element.data',target:run.target,patch:{}},root.document);if(allowed&&!allowed.enabled)throw fault(allowed.code,allowed.targets);
|
|
if([...root.runtime.ledger.operations.values()].some(record=>record.phase!=='resolved'&&record.intent.operationType==='run.cancel'&&record.intent.action.runId===runId))throw fault('run_action_pending');
|
|
return queueRunAction('run.cancel',{runId,boardId:run.boardId});
|
|
}catch(error){return reject(error);}
|
|
},
|
|
applyRunOutput(runId:Id,target:RunApplyInput['target'],outputId:Id):Result {
|
|
try{
|
|
assertWritable();if(!options.runs)throw fault('run_interpreter_unavailable');if(applying)throw fault('reentrant_dispatch');
|
|
const root=editor.getSnapshot(),run=root.runtime.runs.get(runId),element=root.document.elements.get(target.id);
|
|
if(!run||run.blocked||!runContainsTarget(run,target)||!element||element.incarnation!==target.incarnation)throw fault('target_changed');
|
|
if((run.appliedOutputIds??[]).includes(outputId))throw fault('output_already_applied');
|
|
if([...root.runtime.ledger.operations.values()].some(record=>record.phase!=='resolved'&&(record.intent.operationType==='run.apply'||record.intent.operationType==='run.cancel')&&record.intent.action.runId===runId))throw fault('run_action_pending');
|
|
const event=run.outputEvents.find(event=>event.node_id===target.id&&event.output&&typeof event.output==='object'&&!Array.isArray(event.output)&&event.output.output_id===outputId),output=event?.output as {[key:string]:Json}|undefined;
|
|
if(!output||run.status!=='conflict')throw fault('output_not_applicable');
|
|
const patch:Data|undefined=output.kind==='text'&&typeof output.text==='string'?{text:output.text}:output.kind==='image'&&typeof output.src==='string'&&typeof output.assetId==='string'?{src:output.src,assetId:output.assetId}:undefined;if(!patch)throw fault('invalid_run_output');
|
|
const action:RunApplyInput={runId,boardId:run.boardId,targetCanvasId:element.ownerCanvasId,target,outputId};applying=action;
|
|
const result=editor.dispatch({type:'element.data',target,patch},{label:'Apply generated result'});
|
|
if(result.status==='rejected'||result.operationIds.length)return result;
|
|
return queueRunAction('run.apply',action);
|
|
}catch(error){return reject(error);}finally{applying=undefined;}
|
|
},
|
|
startRun(input: RunInput): Result {
|
|
try {
|
|
assertWritable();
|
|
if(!options.runs)throw fault('run_interpreter_unavailable');
|
|
validateRunInput(input);
|
|
const root=editor.getSnapshot(),element=root.document.elements.get(input.target.id);
|
|
if(!element||element.incarnation!==input.target.incarnation||element.ownerCanvasId!==input.boardId||element.structure!=='node'||options.registry.resolve(element)!=='known'||!['text','plain-text','script','image','plain-image'].includes(element.componentId))throw fault('target_changed');
|
|
const allowed=editor.can({type:'element.data',target:input.target,patch:{ai:{enabled:true,modelId:input.modelId,prompt:input.prompt,parameters:input.parameters,propagate:input.propagate}}});
|
|
if(!allowed.enabled)throw fault(allowed.code,allowed.targets);
|
|
if([...root.runtime.ledger.operations.values()].some(record=>record.intent.operationType==='run.start'&&record.phase!=='resolved'&&record.intent.run.target.id===input.target.id))throw fault('node_busy');
|
|
if([...root.runtime.runs.values()].some(run=>runContainsTarget(run,input.target)&&(run.hasMore||run.pendingPage||['queued','running'].includes(run.status))))throw fault('node_busy');
|
|
const id=createId(),dependencies=[...root.runtime.ledger.operations.values()].filter(record=>record.phase!=='resolved').map(record=>record.intent.id);
|
|
let sequence=1;for(const record of root.runtime.ledger.operations.values())sequence=Math.max(sequence,record.intent.sequence+1);
|
|
const result=editor.updateRuntime(previous=>{const ledger=createLedger(previous.ledger);ledger.add(freeze({id,operationType:'run.start',operationSchemaVersion:1,sequence,origin:'user',canvasIds:[...root.document.canvases.keys()].sort(),changes:[],dependencies,run:JSON.parse(JSON.stringify(input))}),{});return Object.freeze({...previous,ledger:ledger.getSnapshot()});},root.rootRevision);
|
|
if(result.status==='rejected')return result;
|
|
queueMicrotask(()=>{if(!closing&&!closed)scheduler.notify([id]);});
|
|
return{status:'applied',revision:root.revision,operationIds:[id]};
|
|
}catch(error){return reject(error);}
|
|
},
|
|
refresh(document: Document, versions: ReadonlyMap<Id, number>): Result {
|
|
const root = editor.getSnapshot(), previous = root.runtime;
|
|
try {
|
|
assertWritable();
|
|
if ([...previous.ledger.requests.values()].some(request => request.phase !== 'resolved')) throw fault('refresh_waiting_for_receipts');
|
|
validateCanonicalRead(previous.acknowledged,previous.versions,document,versions,options.registry);
|
|
if (equal([...previous.versions], [...versions]) && equal([...previous.acknowledged.canvases], [...document.canvases]) && equal([...previous.acknowledged.elements], [...document.elements]) && equal([...previous.acknowledged.tombstones], [...document.tombstones])) return { status: 'applied', revision: root.revision, operationIds: [] };
|
|
const acknowledged = createDocument(document.projectId, [...document.canvases.values()], [...document.elements.values()], document.tombstones);
|
|
const working = replayPending(acknowledged, previous.ledger, options.registry);
|
|
const conflicts = new Map(previous.conflicts); conflicts.delete('refresh');
|
|
return editor.reconcile(working, Object.freeze({ ...previous, acknowledged, versions: readMap(versions), conflicts: readMap(conflicts) }), root.rootRevision);
|
|
} catch (error) {
|
|
const result = reject(error);
|
|
if (!['refresh_waiting_for_receipts','engine_closing','recovery_in_progress'].includes(result.code)) editor.updateRuntime(previous => { const conflicts = new Map(previous.conflicts); conflicts.set('refresh', result.code); return Object.freeze({ ...previous, conflicts: readMap(conflicts) }); });
|
|
return result;
|
|
}
|
|
},
|
|
stageFiles(files: readonly StagedFile[], callback: (resources: readonly ResourceHandle[], transaction: Transaction) => unknown) {
|
|
assertWritable();
|
|
if (staged.length) throw fault('reentrant_dispatch');
|
|
if (!options.assets) throw fault('asset_interpreter_unavailable');
|
|
const resources = files.map(file => {
|
|
if (!(file.bytes instanceof Blob) || !file.bytes.size || file.bytes.size > maxResourceBytes || !file.bytes.type.startsWith('image/') || typeof file.name !== 'string' || !file.name) throw fault('invalid_staged_file');
|
|
return freeze({ id: createId(), operationId: createId(), name: file.name, mimeType: file.bytes.type, byteLength: file.bytes.size });
|
|
});
|
|
if (new Set(resources.flatMap(resource => [resource.id, resource.operationId])).size !== resources.length * 2 || resources.some(resource => editor.getSnapshot().runtime.resources.has(resource.id) || editor.getSnapshot().runtime.orphanFiles?.has(resource.id) || fileWrites.has(resource.id) || importFiles(editor.getSnapshot().runtime.imports).has(resource.id))) throw fault('resource_identity_conflict');
|
|
staged = resources; resources.forEach((resource, index) => fileWrites.set(resource.id, files[index].bytes));
|
|
try {
|
|
const handles = freeze(resources.map(resource => ({ id: resource.id, src: options.assets!.sourceURL(resource.id) })));
|
|
const result = editor.transaction(tx => callback(handles, tx), { label: 'Add images' });
|
|
if (result.status === 'rejected' || !result.operationIds.length) for (const resource of resources) fileWrites.delete(resource.id);
|
|
return result;
|
|
} finally { staged = []; for (const resource of resources) if (!editor.getSnapshot().runtime.resources.has(resource.id)) fileWrites.delete(resource.id); }
|
|
},
|
|
async displayResource(id: Id) {
|
|
if (closing || closed) throw fault('engine_closing');
|
|
if(collectionReservations.has(id))throw fault('resource_collection_in_progress',[id]);
|
|
displayPins.set(id,(displayPins.get(id)??0)+1);
|
|
let released=false,url:string|undefined,local=false;
|
|
const release=()=>{if(released)return;released=true;displays.delete(release);const count=displayPins.get(id)??1;if(count<=1)displayPins.delete(id);else displayPins.set(id,count-1);if(local&&url)URL.revokeObjectURL(url);};
|
|
displays.add(release);
|
|
try{
|
|
const retained=editor.getSnapshot().runtime.resources.get(id);
|
|
const orphan=editor.getSnapshot().runtime.orphanFiles?.get(id);if(orphan?.retirement?.purgedAt!==undefined)throw fault('local_file_retired',[id]);
|
|
if(orphan?.retirement){const result=editor.updateRuntime(previous=>Object.freeze({...previous}));if(result.status==='rejected')throw fault(result.code,result.targets);}
|
|
if(retained?.retirement&&retained.retirement.purgedAt===undefined){
|
|
const result=editor.updateRuntime(previous=>{const resources=new Map(previous.resources),{retirement:_,...kept}=retained;resources.set(id,freeze(kept));return Object.freeze({...previous,resources:readMap(resources)});});
|
|
if(result.status==='rejected')throw fault(result.code,result.targets);
|
|
}
|
|
if(!retained){
|
|
const source=importFiles(editor.getSnapshot().runtime.imports).get(id)?.file;
|
|
if(source?.retirement?.purgedAt!==undefined)throw fault('import_source_retired',[id]);
|
|
if(source?.retirement){const result=editor.updateRuntime(previous=>Object.freeze({...previous}));if(result.status==='rejected')throw fault(result.code,result.targets);}
|
|
}
|
|
const bytes = fileWrites.get(id) ?? await options.storage.readFile(leader, id);
|
|
if (closing || closed) throw fault('engine_closing');
|
|
if(orphan&&(!bytes||bytes.size!==orphan.byteLength||bytes.type!==orphan.mimeType||await sourceDigest(bytes)!==orphan.digest))throw fault('file_inventory_changed',[id]);
|
|
if(closing||closed)throw fault('engine_closing');
|
|
const resource=editor.getSnapshot().runtime.resources.get(id);
|
|
if(!bytes&&resource?.retirement?.purgedAt!==undefined&&!resource.stored)throw fault('resource_bytes_unavailable',[id]);
|
|
if (!bytes && !options.assets) throw fault('resource_missing', [id]);
|
|
local=!!bytes;url=bytes?URL.createObjectURL(bytes):options.assets!.displayURL(id);
|
|
return Object.freeze({url,release});
|
|
}catch(error){release();throw error;}
|
|
},
|
|
getSnapshot: editor.getSnapshot, persist,
|
|
cancelRecovery:async()=>{await recovery?.cancel();},
|
|
getDurability: () => Object.freeze({ rootRevision: editor.getSnapshot().rootRevision, durableRootRevision }),
|
|
retry: async () => { if(recovery)await recovery.cancel();assertWritable();const runtime=editor.getSnapshot().runtime,ids=[...runtime.resources.values()].filter(resource=>!resource.digest&&runtime.ledger.operations.get(resource.operationId)?.blockers.some(code=>digestFailures.has(code))).map(resource=>resource.operationId);if(ids.length){mutate(ledger=>{for(const id of ids)ledger.block(id,['waiting_digest']);});prepareDigests();}await scheduler.resume();await runTracker.retry(); },
|
|
async settle() { await Promise.resolve();await Promise.allSettled([...copyPreparations.values()]);while(importLoads.size)await Promise.all([...importLoads.values()]);await Promise.all([...importRunners.values()].map(runner=>runner.settle())); while (digestTasks.size) await Promise.all([...digestTasks.values()]); await scheduler.settle(); await runTracker.settle(); await persist(); },
|
|
async close() {
|
|
if (closed) return;
|
|
closing = true;orphanController?.abort();await Promise.allSettled([collection,sourceCollection,orphanCollection].filter(Boolean));digestLifecycle.abort();for(const controller of preparationControllers.values())controller.abort();for(const controller of copyPreparations.keys())controller.abort();await Promise.allSettled([...copyPreparations.values()]); sessions.dispose(); scheduler.stop(); runTracker.stop();
|
|
await Promise.all([...importRunners.values()].map(runner=>runner.close()));while(importLoads.size)await Promise.all([...importLoads.values()]);while(digestTasks.size)await Promise.allSettled([...digestTasks.values()]);
|
|
recovery?.controller.abort();recovery?.release();
|
|
for (const release of [...displays]) release();
|
|
// Failure keeps the leader/recovery material available for an explicit retry of close.
|
|
await persist(); unsubscribe(); editor.dispose(); await leader.release(); closed = true;
|
|
},
|
|
});
|
|
} catch (error) { await leader.release(); throw error; }
|
|
}
|