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feat: add background AI sessions with persistent storage and SSE streaming

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Introduces ai_sessions table (schema v9), AiSessionStore, and background
session support for mission interviews, planning, and subtask breakdown.
Adds BackgroundTasksIndicator component, SSE-based progress streaming,
and dashboard API routes for session management.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
gsxdsm
2026-04-04 13:42:02 -07:00
parent 4f2b840eb4
commit eef87a2aea
23 changed files with 1128 additions and 68 deletions
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97
packages/dashboard/src/sse.ts
View File

@@ -1,5 +1,6 @@
import type { Request, Response } from "express";
import type { TaskStore, MissionStore } from "@fusion/core";
import type { AiSessionStore } from "./ai-session-store.js";
let activeConnections = 0;
@@ -23,7 +24,7 @@ function safeWrite(res: Response, data: string): boolean {
}
}
export function createSSE(store: TaskStore, missionStore?: MissionStore) {
export function createSSE(store: TaskStore, missionStore?: MissionStore, aiSessionStore?: AiSessionStore) {
return (_req: Request, res: Response) => {
res.setHeader("Content-Type", "text/event-stream");
res.setHeader("Cache-Control", "no-cache");
@@ -36,41 +37,13 @@ export function createSSE(store: TaskStore, missionStore?: MissionStore) {
// Send initial heartbeat
res.write(": connected\n\n");
/** Detach all listeners and clean up. Idempotent. */
let cleaned = false;
const cleanup = () => {
if (cleaned) return;
cleaned = true;
activeConnections--;
clearInterval(heartbeat);
store.off("task:created", onCreated);
store.off("task:moved", onMoved);
store.off("task:updated", onUpdated);
store.off("task:deleted", onDeleted);
store.off("task:merged", onMerged);
if (missionStore) {
missionStore.off("mission:created", onMissionCreated);
missionStore.off("mission:updated", onMissionUpdated);
missionStore.off("mission:deleted", onMissionDeleted);
missionStore.off("milestone:created", onMilestoneCreated);
missionStore.off("milestone:updated", onMilestoneUpdated);
missionStore.off("milestone:deleted", onMilestoneDeleted);
missionStore.off("slice:created", onSliceCreated);
missionStore.off("slice:updated", onSliceUpdated);
missionStore.off("slice:deleted", onSliceDeleted);
missionStore.off("slice:activated", onSliceActivated);
missionStore.off("feature:created", onFeatureCreated);
missionStore.off("feature:updated", onFeatureUpdated);
missionStore.off("feature:deleted", onFeatureDeleted);
missionStore.off("feature:linked", onFeatureLinked);
}
};
/** Write an SSE message; clean up on failure. */
const send = (data: string) => {
if (!safeWrite(res, data)) cleanup();
};
// --- Event handler definitions ---
const onCreated = (task: any) => {
send(`event: task:created\ndata: ${JSON.stringify(task)}\n\n`);
};
@@ -87,13 +60,6 @@ export function createSSE(store: TaskStore, missionStore?: MissionStore) {
send(`event: task:merged\ndata: ${JSON.stringify(result)}\n\n`);
};
store.on("task:created", onCreated);
store.on("task:moved", onMoved);
store.on("task:updated", onUpdated);
store.on("task:deleted", onDeleted);
store.on("task:merged", onMerged);
// Mission store event listeners (only wired up when missionStore is provided)
const onMissionCreated = (data: any) => {
send(`event: mission:created\ndata: ${JSON.stringify(data)}\n\n`);
};
@@ -137,6 +103,56 @@ export function createSSE(store: TaskStore, missionStore?: MissionStore) {
send(`event: feature:linked\ndata: ${JSON.stringify(data)}\n\n`);
};
const onAiSessionUpdated = (data: any) => {
send(`event: ai_session:updated\ndata: ${JSON.stringify(data)}\n\n`);
};
const onAiSessionDeleted = (data: any) => {
send(`event: ai_session:deleted\ndata: ${JSON.stringify(data)}\n\n`);
};
// --- Cleanup (all handlers are defined above, safe to reference) ---
let cleaned = false;
const cleanup = () => {
if (cleaned) return;
cleaned = true;
activeConnections--;
clearInterval(heartbeat);
store.off("task:created", onCreated);
store.off("task:moved", onMoved);
store.off("task:updated", onUpdated);
store.off("task:deleted", onDeleted);
store.off("task:merged", onMerged);
if (missionStore) {
missionStore.off("mission:created", onMissionCreated);
missionStore.off("mission:updated", onMissionUpdated);
missionStore.off("mission:deleted", onMissionDeleted);
missionStore.off("milestone:created", onMilestoneCreated);
missionStore.off("milestone:updated", onMilestoneUpdated);
missionStore.off("milestone:deleted", onMilestoneDeleted);
missionStore.off("slice:created", onSliceCreated);
missionStore.off("slice:updated", onSliceUpdated);
missionStore.off("slice:deleted", onSliceDeleted);
missionStore.off("slice:activated", onSliceActivated);
missionStore.off("feature:created", onFeatureCreated);
missionStore.off("feature:updated", onFeatureUpdated);
missionStore.off("feature:deleted", onFeatureDeleted);
missionStore.off("feature:linked", onFeatureLinked);
}
if (aiSessionStore) {
aiSessionStore.off("ai_session:updated", onAiSessionUpdated);
aiSessionStore.off("ai_session:deleted", onAiSessionDeleted);
}
};
// --- Subscribe ---
store.on("task:created", onCreated);
store.on("task:moved", onMoved);
store.on("task:updated", onUpdated);
store.on("task:deleted", onDeleted);
store.on("task:merged", onMerged);
if (missionStore) {
missionStore.on("mission:created", onMissionCreated);
missionStore.on("mission:updated", onMissionUpdated);
@@ -154,6 +170,11 @@ export function createSSE(store: TaskStore, missionStore?: MissionStore) {
missionStore.on("feature:linked", onFeatureLinked);
}
if (aiSessionStore) {
aiSessionStore.on("ai_session:updated", onAiSessionUpdated);
aiSessionStore.on("ai_session:deleted", onAiSessionDeleted);
}
// Heartbeat every 30s to keep connection alive.
// Sent as a named event so the client's EventSource can detect it
// (SSE comments starting with ":" are silently consumed and never