Centralize app persistence in SQLite and harden state/event flows#86

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juliusmarminge merged 1 commit into from
Feb 21, 2026
Merged

Centralize app persistence in SQLite and harden state/event flows #86

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30 changes: 26 additions & 4 deletions apps/server/src/persistenceService.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
sessionId: "sess-1",
};

service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
...baseEvent,
id: "evt-1",
createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
},
},
});
expect(event1?.seq).toBeGreaterThan(0);

service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
...baseEvent,
id: "evt-2",
createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
delta: "hi",
},
});
expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
...baseEvent,
id: "evt-3",
createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
},
},
});
expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
...baseEvent,
id: "evt-4",
createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
},
},
});
expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

const snapshot = service.loadSnapshot();
expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
expect(providerCatchUp.events.map((event) => event.id)).toEqual([
"evt-1",
"evt-2",
"evt-3",
"evt-4",
]);
const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
for (let index = 1; index < providerSeqs.length; index += 1) {
expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
}

const providerCatchUpAfterSecond = service.providerCatchUp({
afterSeq: event2?.seq ?? 0,
});
expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
} finally {
service.close();
}
Expand Down
108 changes: 105 additions & 3 deletions apps/server/src/persistenceService.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
type ProjectRemoveInput,
type ProjectUpdateScriptsInput,
type ProjectUpdateScriptsResult,
type ProviderCatchUpInput,
type ProviderCatchUpResult,
type ProviderEvent,
type ProviderSendTurnInput,
type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
projectRemoveInputSchema,
projectScriptsSchema,
projectUpdateScriptsInputSchema,
providerCatchUpInputSchema,
providerCatchUpResultSchema,
providerEventSchema,
stateBootstrapResultSchema,
stateCatchUpInputSchema,
stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
inserted: boolean;
runtimeThreadId: string | null;
seq: number;
}

interface ProviderEventRow {
seq: number;
id: string;
session_id: string;
provider: string;
kind: string;
method: string;
thread_id: string | null;
turn_id: string | null;
item_id: string | null;
request_id: string | null;
request_kind: string | null;
text_delta: string | null;
message: string | null;
payload_json: string | null;
created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
});
}

providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
const input = providerCatchUpInputSchema.parse(raw);
const rows = this.db
.prepare(
`SELECT
seq,
id,
session_id,
provider,
kind,
method,
thread_id,
turn_id,
item_id,
request_id,
request_kind,
text_delta,
message,
payload_json,
created_at
FROM provider_events
WHERE seq > ?
ORDER BY seq ASC
LIMIT ?;`,
)
.all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

const events = rows
.map((row) => this.parseProviderEventRow(row))
.filter((event): event is ProviderEvent => event !== null);

return providerCatchUpResultSchema.parse({
events,
lastProviderSeq: this.readLastProviderSeq(),
});
}

listMessages(raw: StateListMessagesInput): StateListMessagesResult {
const input = stateListMessagesInputSchema.parse(raw);
const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
});
}

ingestProviderEvent(event: ProviderEvent): void {
ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
let persistedEvent: ProviderEvent | null = null;
this.withTransaction((pendingEvents) => {
const insertResult = this.insertProviderEvent(event);
if (!insertResult.inserted) {
return;
}
persistedEvent = providerEventSchema.parse({
...event,
seq: insertResult.seq,
...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
});

const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
}
}
});
return persistedEvent;
}

persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
return row?.seq ?? 0;
}

private readLastProviderSeq(): number {
const row = this.db
.prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
.get() as { seq: number } | undefined;
return row?.seq ?? 0;
}

private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
const pendingEvents: StateEvent[] = [];
const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
event.message ?? null,
payloadJson,
event.createdAt,
) as { changes?: number | bigint };
) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
const inserted = toSafeInteger(result.changes, 0) > 0;
return {
inserted: toSafeInteger(result.changes, 0) > 0,
inserted,
runtimeThreadId: runtimeThreadId ?? null,
seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
};
}

private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
const parsed = providerEventSchema.safeParse({
seq: row.seq,
id: row.id,
kind: row.kind,
provider: row.provider,
sessionId: row.session_id,
createdAt: row.created_at,
method: row.method,
...(row.thread_id ? { threadId: row.thread_id } : {}),
...(row.turn_id ? { turnId: row.turn_id } : {}),
...(row.item_id ? { itemId: row.item_id } : {}),
...(row.request_id ? { requestId: row.request_id } : {}),
...(row.request_kind ? { requestKind: row.request_kind } : {}),
...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
...(row.message ? { message: row.message } : {}),
...(payload !== undefined ? { payload } : {}),
});
if (!parsed.success) {
return null;
}
return parsed.data;
}

private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
const candidate = this.tryParseJson(json);
const parsed = schema.safeParse(candidate);
Expand Down
52 changes: 52 additions & 0 deletions apps/server/src/providerManager.test.ts
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Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
it("emits persisted provider events with durable sequence metadata when available", () => {
const ingestProviderEvent = vi.fn((event: {
id: string;
kind: "notification";
provider: "codex";
sessionId: string;
createdAt: string;
method: string;
threadId: string;
}) => ({
...event,
seq: 11,
}));
const persistenceService = {
ingestProviderEvent,
unbindSession: vi.fn(),
};
const manager = new ProviderManager({
persistenceService: persistenceService as never,
});
const events: Array<{ id: string; seq?: number }> = [];
manager.on("event", (event) => {
events.push({ id: event.id, seq: event.seq });
});

const internals = manager as unknown as {
onCodexEvent: (event: {
id: string;
kind: "notification";
provider: "codex";
sessionId: string;
createdAt: string;
method: string;
threadId: string;
}) => void;
};

internals.onCodexEvent({
id: "evt-seq-1",
kind: "notification",
provider: "codex",
sessionId: "sess-1",
createdAt: new Date().toISOString(),
method: "turn/started",
threadId: "thread-1",
});

expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
manager.dispose();
});

it("detaches provider event listener and ends thread log streams on dispose", () => {
const manager = new ProviderManager();
const internals = manager as unknown as {
Expand Down
39 changes: 26 additions & 13 deletions apps/server/src/providerManager.ts
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Open in desktop
Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
if (this.disposed) {
return;
}

this.routeEventToThreadLog(event);
try {
this.persistenceService?.ingestProviderEvent(event);
} catch {
// Persistence failures should not break provider streaming.
}
if (event.method === "session/closed" || event.method === "session/exited") {
this.persistenceService?.unbindSession(event.sessionId);
const emittedEvent = this.publishProviderEvent(event);
if (!emittedEvent) {
return;
}
this.emit("event", event);
this.maybeCaptureFilesystemCheckpoint(event);
this.maybeCaptureFilesystemCheckpoint(emittedEvent);
};

constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
}

private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
this.emit("event", {
this.publishProviderEvent({
id: randomUUID(),
kind: "notification",
provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
message: string,
threadId?: string,
): void {
this.emit("event", {
this.publishProviderEvent({
id: randomUUID(),
kind: "error",
provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
});
}

private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
let emittedEvent = event;
try {
const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
if (this.persistenceService && !persistedEvent) {
return null;
}
emittedEvent = persistedEvent ?? event;
} catch {
// Persistence failures should not break provider streaming.
}

this.routeEventToThreadLog(emittedEvent);
if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
this.persistenceService?.unbindSession(emittedEvent.sessionId);
}
this.emit("event", emittedEvent);
return emittedEvent;
}

private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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Centralize app persistence in SQLite and harden state/event flows#86

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to your account

 Merged

juliusmarminge
merged 1 commit into

from

Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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Centralize app persistence in SQLite and harden state/event flows#86

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juliusmarminge
merged 1 commit into

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Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Centralize app persistence in SQLite and harden state/event flows#86

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 Merged

juliusmarminge
merged 1 commit into

from

Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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Centralize app persistence in SQLite and harden state/event flows#86

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juliusmarminge
merged 1 commit into

from

Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
Centralize app persistence in SQLite and harden state/event flows#86

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privacy statement. We’ll occasionally send you account related emails.

Already on GitHub?
Sign in
to your account

 Merged

juliusmarminge
merged 1 commit into

from

Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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juliusmarminge
merged 1 commit into

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Feb 21, 2026
 Merged


Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
Loading
Loading

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Centralize app persistence in SQLite and harden state/event flows#86

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juliusmarminge
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Feb 21, 2026
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Centralize app persistence in SQLite and harden state/event flows
#86
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30 changes: 26 additions & 4 deletions
apps/server/src/persistenceService.test.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -102,7 +102,7 @@ describe("PersistenceService", () => {
 sessionId: "sess-1",
 };

 service.ingestProviderEvent({
const event1 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-1",
 createdAt: iso(10),
Expand All@@ -115,8 +115,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect(event1?.seq).toBeGreaterThan(0);

 service.ingestProviderEvent({
const event2 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-2",
 createdAt: iso(20),
Expand All@@ -128,8 +129,9 @@ describe("PersistenceService", () => {
 delta: "hi",
 },
 });
 expect((event2?.seq ?? 0) > (event1?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event3 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-3",
 createdAt: iso(30),
Expand All@@ -142,8 +144,9 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event3?.seq ?? 0) > (event2?.seq ?? 0)).toBe(true);

 service.ingestProviderEvent({
const event4 = service.ingestProviderEvent({
 ...baseEvent,
 id: "evt-4",
 createdAt: iso(40),
Expand All@@ -156,6 +159,7 @@ describe("PersistenceService", () => {
 },
 },
 });
 expect((event4?.seq ?? 0) > (event3?.seq ?? 0)).toBe(true);

 const snapshot = service.loadSnapshot();
 expect(snapshot.projects).toHaveLength(1);
Expand All@@ -179,6 +183,24 @@ describe("PersistenceService", () => {
 expect(catchUp.events.some((event) => event.eventType === "project.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "thread.upsert")).toBe(true);
 expect(catchUp.events.some((event) => event.eventType === "message.upsert")).toBe(true);

 const providerCatchUp = service.providerCatchUp({ afterSeq: 0 });
 expect(providerCatchUp.lastProviderSeq).toBe(event4?.seq ?? 0);
 expect(providerCatchUp.events.map((event) => event.id)).toEqual([
 "evt-1",
 "evt-2",
 "evt-3",
 "evt-4",
 ]);
 const providerSeqs = providerCatchUp.events.map((event) => event.seq ?? 0);
 for (let index = 1; index < providerSeqs.length; index += 1) {
 expect(providerSeqs[index]).toBeGreaterThan(providerSeqs[index - 1] ?? Number.NEGATIVE_INFINITY);
 }

 const providerCatchUpAfterSecond = service.providerCatchUp({
 afterSeq: event2?.seq ?? 0,
 });
 expect(providerCatchUpAfterSecond.events.map((event) => event.id)).toEqual(["evt-3", "evt-4"]);
 } finally {
 service.close();
 }
Expand Down

108 changes: 105 additions & 3 deletions
apps/server/src/persistenceService.ts

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Original file line numberDiff line numberDiff line change
Expand Up@@ -16,6 +16,8 @@ import {
 type ProjectRemoveInput,
 type ProjectUpdateScriptsInput,
 type ProjectUpdateScriptsResult,
 type ProviderCatchUpInput,
 type ProviderCatchUpResult,
 type ProviderEvent,
 type ProviderSendTurnInput,
 type StateBootstrapResult,
Expand DownExpand Up@@ -44,6 +46,9 @@ import {
 projectRemoveInputSchema,
 projectScriptsSchema,
 projectUpdateScriptsInputSchema,
 providerCatchUpInputSchema,
 providerCatchUpResultSchema,
 providerEventSchema,
 stateBootstrapResultSchema,
 stateCatchUpInputSchema,
 stateCatchUpResultSchema,
Expand DownExpand Up@@ -94,6 +99,25 @@ interface StateEventRow {
interface ProviderEventInsertResult {
 inserted: boolean;
 runtimeThreadId: string | null;
 seq: number;
}

interface ProviderEventRow {
 seq: number;
 id: string;
 session_id: string;
 provider: string;
 kind: string;
 method: string;
 thread_id: string | null;
 turn_id: string | null;
 item_id: string | null;
 request_id: string | null;
 request_kind: string | null;
 text_delta: string | null;
 message: string | null;
 payload_json: string | null;
 created_at: string;
}

export interface PersistenceServiceOptions {
Expand DownExpand Up@@ -772,6 +796,43 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 providerCatchUp(raw: ProviderCatchUpInput): ProviderCatchUpResult {
 const input = providerCatchUpInputSchema.parse(raw);
 const rows = this.db
 .prepare(
 `SELECT
 seq,
 id,
 session_id,
 provider,
 kind,
 method,
 thread_id,
 turn_id,
 item_id,
 request_id,
 request_kind,
 text_delta,
 message,
 payload_json,
 created_at
 FROM provider_events
 WHERE seq > ?
 ORDER BY seq ASC
 LIMIT ?;`,
 )
 .all(input.afterSeq, input.limit) as unknown as ProviderEventRow[];

 const events = rows
 .map((row) => this.parseProviderEventRow(row))
 .filter((event): event is ProviderEvent => event !== null);

 return providerCatchUpResultSchema.parse({
 events,
 lastProviderSeq: this.readLastProviderSeq(),
 });
 }

 listMessages(raw: StateListMessagesInput): StateListMessagesResult {
 const input = stateListMessagesInputSchema.parse(raw);
 const rows = this.db
Expand DownExpand Up@@ -867,12 +928,18 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 });
 }

 ingestProviderEvent(event: ProviderEvent): void {
 ingestProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let persistedEvent: ProviderEvent | null = null;
 this.withTransaction((pendingEvents) => {
 const insertResult = this.insertProviderEvent(event);
 if (!insertResult.inserted) {
 return;
 }
 persistedEvent = providerEventSchema.parse({
 ...event,
 seq: insertResult.seq,
 ...(insertResult.runtimeThreadId ? { threadId: insertResult.runtimeThreadId } : {}),
 });

 const localThreadId = this.resolveThreadIdForEvent(event, insertResult.runtimeThreadId);
 if (!localThreadId) {
Expand DownExpand Up@@ -1138,6 +1205,7 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 }
 }
 });
 return persistedEvent;
 }

 persistTurnDiffSummaryFromCheckpoint(input: {
Expand DownExpand Up@@ -1360,6 +1428,13 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 return row?.seq ?? 0;
 }

 private readLastProviderSeq(): number {
 const row = this.db
 .prepare("SELECT COALESCE(MAX(seq), 0) AS seq FROM provider_events;")
 .get() as { seq: number } | undefined;
 return row?.seq ?? 0;
 }

 private withTransaction<T>(fn: (pendingEvents: StateEvent[]) => T): T {
 const pendingEvents: StateEvent[] = [];
 const result = this.stateDb.transaction(() => fn(pendingEvents));
Expand DownExpand Up@@ -1766,13 +1841,40 @@ export class PersistenceService extends EventEmitter<PersistenceServiceEvents> {
 event.message ?? null,
 payloadJson,
 event.createdAt,
 ) as { changes?: number | bigint };
 ) as { changes?: number | bigint; lastInsertRowid?: number | bigint };
 const inserted = toSafeInteger(result.changes, 0) > 0;
 return {
 inserted: toSafeInteger(result.changes, 0) > 0,
 inserted,
 runtimeThreadId: runtimeThreadId ?? null,
 seq: inserted ? toSafeInteger(result.lastInsertRowid, 0) : 0,
 };
 }

 private parseProviderEventRow(row: ProviderEventRow): ProviderEvent | null {
 const payload = row.payload_json ? this.tryParseJson(row.payload_json) : undefined;
 const parsed = providerEventSchema.safeParse({
 seq: row.seq,
 id: row.id,
 kind: row.kind,
 provider: row.provider,
 sessionId: row.session_id,
 createdAt: row.created_at,
 method: row.method,
 ...(row.thread_id ? { threadId: row.thread_id } : {}),
 ...(row.turn_id ? { turnId: row.turn_id } : {}),
 ...(row.item_id ? { itemId: row.item_id } : {}),
 ...(row.request_id ? { requestId: row.request_id } : {}),
 ...(row.request_kind ? { requestKind: row.request_kind } : {}),
 ...(row.text_delta !== null ? { textDelta: row.text_delta } : {}),
 ...(row.message ? { message: row.message } : {}),
 ...(payload !== undefined ? { payload } : {}),
 });
 if (!parsed.success) {
 return null;
 }
 return parsed.data;
 }

 private parseJson<T>(json: string, schema: SafeParseSchema<T>): T | null {
 const candidate = this.tryParseJson(json);
 const parsed = schema.safeParse(candidate);
Expand Down

52 changes: 52 additions & 0 deletions
apps/server/src/providerManager.test.ts

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Open in desktop

Original file line numberDiff line numberDiff line change
Expand Up@@ -3,6 +3,58 @@ import { describe, expect, it, vi } from "vitest";
import { ProviderManager } from "./providerManager";

describe("ProviderManager", () => {
 it("emits persisted provider events with durable sequence metadata when available", () => {
 const ingestProviderEvent = vi.fn((event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => ({
 ...event,
 seq: 11,
 }));
 const persistenceService = {
 ingestProviderEvent,
 unbindSession: vi.fn(),
 };
 const manager = new ProviderManager({
 persistenceService: persistenceService as never,
 });
 const events: Array<{ id: string; seq?: number }> = [];
 manager.on("event", (event) => {
 events.push({ id: event.id, seq: event.seq });
 });

 const internals = manager as unknown as {
 onCodexEvent: (event: {
 id: string;
 kind: "notification";
 provider: "codex";
 sessionId: string;
 createdAt: string;
 method: string;
 threadId: string;
 }) => void;
 };

 internals.onCodexEvent({
 id: "evt-seq-1",
 kind: "notification",
 provider: "codex",
 sessionId: "sess-1",
 createdAt: new Date().toISOString(),
 method: "turn/started",
 threadId: "thread-1",
 });

 expect(ingestProviderEvent).toHaveBeenCalledTimes(1);
 expect(events).toEqual([{ id: "evt-seq-1", seq: 11 }]);
 manager.dispose();
 });

 it("detaches provider event listener and ends thread log streams on dispose", () => {
 const manager = new ProviderManager();
 const internals = manager as unknown as {
Expand Down

39 changes: 26 additions & 13 deletions
apps/server/src/providerManager.ts

View file


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Original file line numberDiff line numberDiff line change
Expand Up@@ -180,18 +180,11 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 if (this.disposed) {
 return;
 }

 this.routeEventToThreadLog(event);
 try {
 this.persistenceService?.ingestProviderEvent(event);
 } catch {
 // Persistence failures should not break provider streaming.
 }
 if (event.method === "session/closed" || event.method === "session/exited") {
 this.persistenceService?.unbindSession(event.sessionId);
 const emittedEvent = this.publishProviderEvent(event);
 if (!emittedEvent) {
 return;
 }
 this.emit("event", event);
 this.maybeCaptureFilesystemCheckpoint(event);
 this.maybeCaptureFilesystemCheckpoint(emittedEvent);
 };

 constructor(options: ProviderManagerOptions = {}) {
Expand DownExpand Up@@ -546,7 +539,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 }

 private emitCheckpointCaptured(sessionId: string, threadId: string, turnCount: number): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "notification",
 provider: "codex",
Expand All@@ -566,7 +559,7 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 message: string,
 threadId?: string,
 ): void {
 this.emit("event", {
 this.publishProviderEvent({
 id: randomUUID(),
 kind: "error",
 provider: "codex",
Expand All@@ -578,6 +571,26 @@ export class ProviderManager extends EventEmitter<ProviderManagerEvents> {
 });
 }

 private publishProviderEvent(event: ProviderEvent): ProviderEvent | null {
 let emittedEvent = event;
 try {
 const persistedEvent = this.persistenceService?.ingestProviderEvent(event);
 if (this.persistenceService && !persistedEvent) {
 return null;
 }
 emittedEvent = persistedEvent ?? event;
 } catch {
 // Persistence failures should not break provider streaming.
 }

 this.routeEventToThreadLog(emittedEvent);
 if (emittedEvent.method === "session/closed" || emittedEvent.method === "session/exited") {
 this.persistenceService?.unbindSession(emittedEvent.sessionId);
 }
 this.emit("event", emittedEvent);
 return emittedEvent;
 }

 private withFilesystemLock<T>(sessionId: string, fn: () => Promise<T>): Promise<T> {
 const previous = this.filesystemLocks.get(sessionId) ?? Promise.resolve();
 const next = previous.catch(() => undefined).then(fn);
Expand Down
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