Files
fusion/packages/engine/src/scheduler.ts
2026-04-11 21:23:36 -07:00

972 lines
38 KiB
TypeScript

import { getCurrentRepo, resolveDependencyOrder, type TaskStore, type Task, type MissionStore, type PrInfo } from "@fusion/core";
import { existsSync } from "node:fs";
import { readFile } from "node:fs/promises";
import { join } from "node:path";
import type { AgentSemaphore } from "./concurrency.js";
import { generateReservedWorktreeName, slugify } from "./worktree-names.js";
import { schedulerLog } from "./logger.js";
import { type PrMonitor, type PrComment } from "./pr-monitor.js";
/**
* Check whether two sets of file scope paths overlap.
* Paths overlap if they are identical, or if one is a directory prefix of the other.
* Glob patterns (ending with `/*`) are treated as directory prefixes.
*
* Exported for direct unit testing; used internally by {@link Scheduler}.
*/
export function pathsOverlap(a: string[], b: string[]): boolean {
for (const pa of a) {
const prefixA = pa.endsWith("/*") ? pa.slice(0, -1) : null;
for (const pb of b) {
const prefixB = pb.endsWith("/*") ? pb.slice(0, -1) : null;
// Exact match (ignoring glob suffix)
const cleanA = prefixA ? pa.slice(0, -2) : pa;
const cleanB = prefixB ? pb.slice(0, -2) : pb;
if (cleanA === cleanB) return true;
// Check prefix overlap
if (prefixA && pb.startsWith(prefixA)) return true;
if (prefixB && pa.startsWith(prefixB)) return true;
if (prefixA && prefixB) {
if (prefixA.startsWith(prefixB) || prefixB.startsWith(prefixA))
return true;
}
// Exact file path match
if (pa === pb) return true;
}
}
return false;
}
export interface SchedulerOptions {
/** Max concurrent in-progress tasks. Default: 2 */
maxConcurrent?: number;
/** Max worktrees for active (in-progress) tasks. Default: 4 */
maxWorktrees?: number;
/** Milliseconds between scheduling polls. Default: 15000 */
pollIntervalMs?: number;
/**
* Shared concurrency semaphore. When provided, the scheduler uses
* `semaphore.availableCount` to avoid scheduling more tasks than the
* global concurrency limit allows (accounting for triage and merge
* agents that also hold slots).
*/
semaphore?: AgentSemaphore;
/** Called when scheduler starts a task */
onSchedule?: (task: Task) => void;
/** Called when a task is blocked by deps */
onBlocked?: (task: Task, blockedBy: string[]) => void;
/** Called when a mission-linked task fails and is queued for retry handling. */
onTaskFailed?: (taskId: string) => void | Promise<void>;
/** Optional PR monitor for tracking in-review PRs */
prMonitor?: PrMonitor;
/** Optional MissionStore for slice activation and auto-advance */
missionStore?: MissionStore;
/** Optional MissionAutopilot for autonomous mission progression */
missionAutopilot?: import("./mission-autopilot.js").MissionAutopilot;
/**
* Called when a task with a closed/merged PR moves out of in-review
* and the PrMonitor has buffered actionable comments.
* The callback receives the task ID, PR info, and the drained comments.
* If no comments were buffered, this callback is NOT invoked.
*/
onClosedPrFeedback?: (
taskId: string,
prInfo: PrInfo,
comments: PrComment[]
) => void | Promise<void>;
/** Optional MissionExecutionLoop for validation cycle handling */
missionExecutionLoop?: import("./mission-execution-loop.js").MissionExecutionLoop;
}
/**
* Scheduler watches the "todo" column and moves tasks to "in-progress"
* when their dependencies are satisfied and concurrency allows.
*
* It respects:
* - Dependency ordering (tasks depending on others wait)
* - Concurrency limits (max N tasks in-progress at once)
*
* **Dynamic settings reload:** On every `schedule()` call the scheduler
* reads `maxConcurrent`, `maxWorktrees`, and `pollIntervalMs` from the
* persisted store settings (`store.getSettings()`). This means changes
* made via the dashboard Settings modal (`PUT /settings`) take effect on
* the very next poll cycle without an engine restart. The poll interval
* itself is also refreshed: if `pollIntervalMs` differs from the active
* timer, the `setInterval` is transparently restarted.
*/
export class Scheduler {
private running = false;
private scheduling = false;
private wasWorktreeLimited = false;
private wasGlobalPaused = false;
private wasEnginePaused = false;
private pollInterval: ReturnType<typeof setInterval> | null = null;
/** The interval (ms) of the currently active `setInterval` timer. */
private activePollMs: number | null = null;
/** Tracks which task IDs are currently paused, to detect unpause transitions. */
private pausedTaskIds = new Set<string>();
/** Tracks mission-linked tasks observed with status=failed before moveTask clears status/error. */
private failedTaskIds = new Set<string>();
/**
* Async listener guard convention:
* - Any async mission helper invoked from event listeners is wrapped in internal try/catch
* (`handleMissionTaskStart` / `handleMissionTaskCompletion`).
* - Fire-and-forget Promise chains in listeners terminate with `.catch(...)`.
* Keep this invariant when adding new async EventEmitter callbacks.
*/
constructor(
private store: TaskStore,
private options: SchedulerOptions = {},
) {
/**
* Event-driven scheduling: when a task is created, trigger a scheduling
* pass immediately instead of waiting for the next poll interval.
* This reduces latency from up to 15 seconds to near-instant.
*/
this.store.on("task:created", () => {
schedulerLog.log("Task created — triggering scheduling");
this.schedule();
});
/**
* Immediate unpause resume: when `globalPause` transitions from `true`
* to `false`, trigger a scheduling pass right away instead of waiting
* for the next poll interval (up to 15 s). Only reacts to true→false
* transitions — no-ops on false→false and true→true.
*
* The re-entrance guard (`this.scheduling`) inside `schedule()` safely
* drops the call if a poll-based pass is already in flight.
*/
this.store.on("settings:updated", ({ settings, previous }) => {
if (previous.globalPause && !settings.globalPause && this.running) {
this.schedule();
}
});
/**
* Immediate soft-unpause resume: when `enginePaused` transitions from
* `true` to `false`, trigger a scheduling pass right away instead of
* waiting for the next poll interval. Same pattern as the globalPause
* unpause handler above.
*/
this.store.on("settings:updated", ({ settings, previous }) => {
if (previous.enginePaused && !settings.enginePaused && this.running) {
this.schedule();
}
});
/**
* PR Monitoring: Start monitoring when a task moves to "in-review",
* stop monitoring when it moves out.
*
* Also handles mission auto-advance: when a linked task completes,
* update feature status and potentially activate next pending slice.
*/
this.store.on("task:moved", ({ task, from, to }) => {
// PR Monitoring
if (this.options.prMonitor) {
if (to === "in-review" && task.prInfo) {
// Start monitoring existing PR
const repo = getCurrentRepo(this.store.getRootDir());
if (repo) {
this.options.prMonitor.startMonitoring(task.id, repo.owner, repo.repo, task.prInfo);
}
} else if (from === "in-review" && to !== "in-review") {
// If task has a closed/merged PR, drain buffered comments before
// stopping monitoring (drainComments needs the tracked PR to still exist)
if (task.prInfo && (task.prInfo.status === "closed" || task.prInfo.status === "merged")) {
const comments = this.options.prMonitor.drainComments(task.id);
if (comments.length > 0 && this.options.onClosedPrFeedback) {
void Promise.resolve(this.options.onClosedPrFeedback(task.id, task.prInfo, comments))
.then(() => {
schedulerLog.log(`Invoked onClosedPrFeedback for ${task.id} with ${comments.length} comment(s)`);
})
.catch((err) => {
schedulerLog.error(`Error in onClosedPrFeedback for ${task.id}:`, err);
});
}
}
// Task moved out of in-review, stop monitoring
this.options.prMonitor.stopMonitoring(task.id);
}
}
// Mission progress tracking: when task with sliceId moves to in-progress
if (task.sliceId && this.options.missionStore && to === "in-progress") {
void this.handleMissionTaskStart(task.id, task.sliceId);
}
// Mission progress tracking: when task with sliceId moves to done
if (task.sliceId && this.options.missionStore && to === "done") {
void this.handleMissionTaskCompletion(task.id, task.sliceId);
}
// Mission failure tracking: status/error are cleared during moveTask(in-progress → todo),
// so we pair this with failedTaskIds captured from task:updated events.
if (task.sliceId && to === "todo" && this.options.onTaskFailed) {
if (task.status === "failed" || this.failedTaskIds.has(task.id)) {
this.failedTaskIds.delete(task.id);
void Promise.resolve(this.options.onTaskFailed(task.id)).catch((err) => {
schedulerLog.error(`Error in onTaskFailed for ${task.id}:`, err);
});
}
}
// Event-driven scheduling: when a task moves to "done" (completion) or "todo" (retry/manual move),
// trigger scheduling immediately so waiting tasks can start without waiting
// for the next poll interval (up to 15 seconds).
if (to === "done" || to === "todo") {
schedulerLog.log(`Task moved to ${to} — triggering scheduling`);
this.schedule();
}
});
/**
* PR Monitoring: Start monitoring when PR is linked to an in-review task.
* Also detects task-level unpause transitions and triggers immediate scheduling.
*/
this.store.on("task:updated", (task) => {
// Track mission failure signals before moveTask clears failure metadata.
if (task.sliceId && task.column === "in-progress" && task.status === "failed") {
this.failedTaskIds.add(task.id);
} else if (task.status !== "failed") {
this.failedTaskIds.delete(task.id);
}
// Track pause state transitions for event-driven scheduling on unpause.
// When a previously-paused task is unpaused in a schedulable column,
// trigger a scheduling pass immediately instead of waiting for the next
// poll interval (up to 15 seconds).
if (task.paused) {
this.pausedTaskIds.add(task.id);
} else if (this.pausedTaskIds.has(task.id)) {
// Task was paused, now unpaused — trigger scheduling
this.pausedTaskIds.delete(task.id);
if (this.running && (task.column === "todo" || task.column === "triage")) {
schedulerLog.log(`Task ${task.id} unpaused — triggering scheduling`);
this.schedule();
}
}
if (!this.options.prMonitor) return;
if (task.column !== "in-review") return;
if (!task.prInfo) return;
// Check if we're already monitoring this task
const tracked = this.options.prMonitor.getTrackedPrs();
if (tracked.has(task.id)) {
this.options.prMonitor.updatePrInfo(task.id, task.prInfo);
return;
}
const repo = getCurrentRepo(this.store.getRootDir());
if (repo) {
this.options.prMonitor.startMonitoring(task.id, repo.owner, repo.repo, task.prInfo);
}
});
}
/**
* Validate that a task's filesystem state is intact.
* Checks that the task directory exists and PROMPT.md is present and non-empty.
*
* @param id - The task ID to validate
* @returns Object with `valid: true` if checks pass, or `valid: false` with a `reason` string if they fail
*/
private async validateTaskFilesystem(id: string): Promise<{ valid: boolean; reason?: string }> {
const taskDir = join(this.store.getTasksDir(), id);
// Check if task directory exists
if (!existsSync(taskDir)) {
return { valid: false, reason: "missing directory" };
}
// Check if PROMPT.md exists and has non-empty content
const promptPath = join(taskDir, "PROMPT.md");
if (!existsSync(promptPath)) {
return { valid: false, reason: "missing or empty PROMPT.md" };
}
try {
const content = await readFile(promptPath, "utf-8");
if (!content || content.trim().length === 0) {
return { valid: false, reason: "missing or empty PROMPT.md" };
}
} catch {
return { valid: false, reason: "missing or empty PROMPT.md" };
}
return { valid: true };
}
start(): void {
if (this.running) return;
this.running = true;
const interval = this.options.pollIntervalMs ?? 15_000;
this.activePollMs = interval;
this.pollInterval = setInterval(() => this.schedule(), interval);
this.schedule();
schedulerLog.log(`Started (poll interval: ${interval}ms)`);
// Wire up MissionAutopilot: set scheduler reference for lazy injection
// and start watching all missions with autopilotEnabled: true
if (this.options.missionAutopilot && this.options.missionStore) {
this.options.missionAutopilot.setScheduler(this);
const missions = this.options.missionStore.listMissions();
for (const mission of missions) {
if (mission.autopilotEnabled && mission.status !== "complete" && mission.status !== "archived") {
this.options.missionAutopilot.watchMission(mission.id);
}
}
this.options.missionAutopilot.start();
}
}
stop(): void {
this.running = false;
if (this.pollInterval) {
clearInterval(this.pollInterval);
this.pollInterval = null;
this.activePollMs = null;
}
// Stop all PR monitoring when scheduler shuts down
if (this.options.prMonitor) {
this.options.prMonitor.stopAll();
}
// Stop MissionAutopilot when scheduler shuts down
if (this.options.missionAutopilot) {
this.options.missionAutopilot.stop();
}
this.failedTaskIds.clear();
schedulerLog.log("Stopped");
}
/**
* If `newIntervalMs` differs from the currently active timer, restart
* the `setInterval` so the new cadence takes effect immediately.
*/
private refreshPollInterval(newIntervalMs?: number): void {
if (!this.running || !newIntervalMs) return;
if (newIntervalMs === this.activePollMs) return;
if (this.pollInterval) {
clearInterval(this.pollInterval);
}
this.activePollMs = newIntervalMs;
this.pollInterval = setInterval(() => this.schedule(), newIntervalMs);
schedulerLog.log(`Poll interval updated to ${newIntervalMs}ms`);
}
getMissionAutopilot(): import("./mission-autopilot.js").MissionAutopilot | undefined {
return this.options.missionAutopilot;
}
/**
* Resolve the base branch for a task being started.
*
* Checks explicit dependencies and implicit `blockedBy` for an in-review
* task with an unmerged branch. Returns the git branch name to start from,
* or `null` if the task should start from HEAD (default).
*
* Priority: explicit dep in-review (first with worktree) > blockedBy in-review.
*/
private resolveBaseBranch(task: Task, allTasks: Task[]): string | null {
// Check explicit dependencies for in-review tasks with worktrees
for (const depId of task.dependencies) {
const dep = allTasks.find((t) => t.id === depId);
if (dep && dep.column === "in-review" && dep.worktree) {
return dep.branch || `fusion/${dep.id.toLowerCase()}`;
}
}
// Check implicit blockedBy for in-review task with worktree
if (task.blockedBy) {
const blocker = allTasks.find((t) => t.id === task.blockedBy);
if (blocker && blocker.column === "in-review" && blocker.worktree) {
return blocker.branch || `fusion/${blocker.id.toLowerCase()}`;
}
}
return null;
}
/**
* Delegates to the module-level {@link pathsOverlap} for testability.
*/
private pathsOverlap(a: string[], b: string[]): boolean {
return pathsOverlap(a, b);
}
/**
* Reserve the worktree path a task will use before it enters in-progress.
* This prevents tasks from appearing active without an assigned worktree.
*/
private planWorktreePath(
task: Task,
naming: string | undefined,
reservedNames: Set<string>,
): string {
if (task.worktree) {
const existingName = task.worktree.split("/").pop();
if (existingName) reservedNames.add(existingName);
return task.worktree;
}
let worktreeName: string;
switch (naming || "random") {
case "task-id":
worktreeName = task.id.toLowerCase();
break;
case "task-title":
worktreeName = slugify(task.title || task.description.slice(0, 60));
break;
case "random":
default:
worktreeName = generateReservedWorktreeName(this.store.getRootDir(), reservedNames);
break;
}
reservedNames.add(worktreeName);
return join(this.store.getRootDir(), ".worktrees", worktreeName);
}
/**
* Run one scheduling pass.
*
* Uses a re-entrance guard (`this.scheduling`) to prevent overlapping
* passes. Because `schedule()` is async but triggered by `setInterval`,
* a slow pass could still be running when the next interval fires.
* Without the guard, two passes would snapshot the same task list and
* both could start tasks whose file scopes overlap — defeating the
* overlap detection that relies on `inProgressScopes` being accurate.
*/
async schedule(): Promise<void> {
if (!this.running) return;
if (this.scheduling) return;
this.scheduling = true;
try {
const tasks = await this.store.listTasks({ slim: true, includeArchived: false });
const settings = await this.store.getSettings();
const maxConcurrent = settings.maxConcurrent ?? this.options.maxConcurrent ?? 2;
const maxWorktrees = settings.maxWorktrees ?? this.options.maxWorktrees ?? 4;
// Refresh the poll interval if the persisted setting has changed
this.refreshPollInterval(settings.pollIntervalMs);
// Global pause (hard stop): halt all scheduling activity
if (settings.globalPause) {
if (!this.wasGlobalPaused) {
schedulerLog.warn("⚠ Global pause active — scheduling halted. To resume: set globalPause to false in settings.");
this.wasGlobalPaused = true;
}
return;
}
if (this.wasGlobalPaused) {
schedulerLog.log("Global pause cleared — scheduling resumed");
}
this.wasGlobalPaused = false;
// Engine paused (soft pause): halt new work dispatch, but let agents finish
if (settings.enginePaused) {
if (!this.wasEnginePaused) {
schedulerLog.warn("⚠ Engine paused — scheduling halted (in-flight agents continue). To resume: set enginePaused to false.");
this.wasEnginePaused = true;
}
return;
}
if (this.wasEnginePaused) {
schedulerLog.log("Engine pause cleared — scheduling resumed");
}
this.wasEnginePaused = false;
// Count only in-progress tasks toward the worktree limit.
// In-review tasks with worktrees are idle (waiting to merge) and
// should not block new tasks from starting.
const activeWorktrees = tasks.filter(
(t) => t.column === "in-progress",
).length;
if (activeWorktrees >= maxWorktrees) {
if (!this.wasWorktreeLimited) {
schedulerLog.log(`Worktree limit reached (${activeWorktrees}/${maxWorktrees})`);
this.wasWorktreeLimited = true;
}
return;
}
this.wasWorktreeLimited = false;
const inProgress = tasks.filter((t) => t.column === "in-progress");
// Specifying tasks (triage column, status "specifying") run full PI
// agent sessions that consume the same resources as execution agents,
// so they must occupy concurrency slots alongside in-progress tasks.
// Paused specifying tasks don't count toward slots.
const specifying = tasks.filter(
(t) => t.column === "triage" && t.status === "specifying" && !t.paused,
);
// When a semaphore is provided, it is the single source of truth for
// global concurrency — its availableCount already accounts for ALL
// slot holders (executors, specifiers, mergers). Counting specifying
// tasks in agentSlots as well would double-count them. Without a
// semaphore (fallback mode), count specifying tasks directly.
const agentSlots = this.options.semaphore
? inProgress.length
: inProgress.length + specifying.length;
// When a semaphore is provided, factor in its available slots so we
// don't schedule more tasks than the global limit allows. Triage and
// merge agents also hold semaphore slots, so availableCount may be
// lower than what maxConcurrent - inProgress.length would suggest.
const semaphoreAvailable = this.options.semaphore
? this.options.semaphore.availableCount
: Infinity;
const available = Math.min(
maxConcurrent - agentSlots,
maxWorktrees - activeWorktrees,
semaphoreAvailable,
);
if (available <= 0) return;
const now = Date.now();
let todo = tasks.filter((t) => {
if (t.column !== "todo" || t.paused) return false;
// Skip tasks with a recovery backoff that hasn't elapsed yet
if (t.nextRecoveryAt && new Date(t.nextRecoveryAt).getTime() > now) return false;
return true;
});
// Filter out tasks belonging to blocked missions
if (todo.length > 0 && this.options.missionStore) {
const blockedSliceIds = new Set<string>();
for (const t of todo) {
if (t.sliceId && !blockedSliceIds.has(t.sliceId)) {
try {
const slice = this.options.missionStore.getSlice(t.sliceId);
if (slice) {
const milestone = this.options.missionStore.getMilestone(slice.milestoneId);
if (milestone) {
const mission = this.options.missionStore.getMission(milestone.missionId);
if (mission && mission.status === "blocked") {
blockedSliceIds.add(t.sliceId);
}
}
}
} catch {
// If lookup fails, don't block the task
}
}
}
if (blockedSliceIds.size > 0) {
todo = todo.filter((t) => !t.sliceId || !blockedSliceIds.has(t.sliceId));
}
}
if (todo.length === 0) return;
/**
* Pre-compute file scopes for all currently active tasks (in-progress
* AND in-review with unmerged worktrees) so that todo tasks are never
* started when their files overlap with work already underway or
* awaiting merge.
*
* Including in-review tasks prevents a blocked task from starting on
* main HEAD when the blocker's changes haven't been merged yet.
*
* The re-entrance guard on this method ensures that this snapshot
* stays consistent throughout the pass — without it, a concurrent
* pass could read stale state and start conflicting tasks.
*
* Newly started tasks are appended to this map further below so that
* subsequent todo tasks in the same pass also see them.
*/
const activeScopes = new Map<string, string[]>();
if (settings.groupOverlappingFiles) {
// In-progress tasks
for (const t of inProgress) {
const scope = await this.store.parseFileScopeFromPrompt(t.id);
if (scope.length > 0) activeScopes.set(t.id, scope);
}
// In-review tasks with unmerged worktrees
const inReviewWithWorktree = tasks.filter(
(t) => t.column === "in-review" && t.worktree,
);
for (const t of inReviewWithWorktree) {
const scope = await this.store.parseFileScopeFromPrompt(t.id);
if (scope.length > 0) activeScopes.set(t.id, scope);
}
}
// Resolve dependency order among todo tasks
const ordered = resolveDependencyOrder(todo);
let started = 0;
const reservedWorktreeNames = new Set(
tasks
.map((task) => task.worktree?.split("/").pop())
.filter((name): name is string => Boolean(name)),
);
for (const taskId of ordered) {
const task = tasks.find((t) => t.id === taskId)!;
// Check all deps are satisfied (done, in-review, or archived)
const unmetDeps = task.dependencies.filter((depId) => {
const dep = tasks.find((t) => t.id === depId);
return dep && dep.column !== "done" && dep.column !== "in-review" && dep.column !== "archived";
});
if (unmetDeps.length > 0) {
await this.store.updateTask(task.id, { status: "queued" });
this.options.onBlocked?.(task, unmetDeps);
continue;
}
// Validate filesystem state before starting (only for tasks with satisfied deps)
const validation = await this.validateTaskFilesystem(task.id);
if (!validation.valid) {
schedulerLog.warn(`Task ${task.id} filesystem validation failed: ${validation.reason}`);
await this.store.moveTask(task.id, "triage");
await this.store.logEntry(task.id, "Task moved to triage — filesystem validation failed", validation.reason);
continue;
}
// Check file scope overlap when enabled
if (settings.groupOverlappingFiles) {
const taskScope = await this.store.parseFileScopeFromPrompt(task.id);
if (taskScope.length > 0) {
let overlappingTaskId: string | null = null;
for (const [ipId, ipScope] of activeScopes) {
if (this.pathsOverlap(taskScope, ipScope)) {
overlappingTaskId = ipId;
break;
}
}
if (overlappingTaskId) {
await this.store.updateTask(task.id, { status: "queued", blockedBy: overlappingTaskId });
continue;
}
}
}
// Dependencies met — check concurrency
if (started >= available) {
continue;
}
// Dependencies met — resolve base branch from in-review deps
const baseBranch = this.resolveBaseBranch(task, tasks);
const plannedWorktree = this.planWorktreePath(
task,
settings.worktreeNaming,
reservedWorktreeNames,
);
// Clear status, reserve worktree path, and then move to in-progress
schedulerLog.log(`Starting ${task.id}: ${task.title || task.id} (deps satisfied)`);
await this.store.updateTask(task.id, {
status: null,
blockedBy: null,
baseBranch: baseBranch ?? undefined,
worktree: plannedWorktree,
});
await this.store.moveTask(task.id, "in-progress");
this.options.onSchedule?.(task);
started++;
// Track newly started task's file scope for overlap with remaining todo tasks
if (settings.groupOverlappingFiles) {
const scope = await this.store.parseFileScopeFromPrompt(task.id);
if (scope.length > 0) activeScopes.set(task.id, scope);
}
}
} catch (err) {
schedulerLog.error("Scheduling error:", err);
} finally {
this.scheduling = false;
}
}
/**
* Handle mission task start.
* When a task with a sliceId moves to "in-progress", update the linked
* feature status to "in-progress" to reflect active work.
*/
private async handleMissionTaskStart(taskId: string, sliceId: string): Promise<void> {
if (!this.options.missionStore) return;
const missionStore = this.options.missionStore;
try {
// Find the feature linked to this task
const feature = missionStore.getFeatureByTaskId(taskId);
if (!feature) {
schedulerLog.log(`Task ${taskId} has sliceId ${sliceId} but no linked feature found`);
return;
}
if (feature.sliceId !== sliceId) {
schedulerLog.warn(
`Task ${taskId} sliceId ${sliceId} does not match linked feature ${feature.id} sliceId ${feature.sliceId}; skipping mission start update`,
);
return;
}
// Only update if feature is still in "triaged" status
if (feature.status === "triaged") {
await missionStore.updateFeatureStatus(feature.id, "in-progress");
schedulerLog.log(`Feature ${feature.id} marked in-progress (task ${taskId} started)`);
}
} catch (err) {
schedulerLog.error(`Error handling mission task start for ${taskId}:`, err);
}
}
/**
* Handle mission task completion.
* When a task moves to "done", update the linked feature status to "done".
* updateFeatureStatus cascades via recomputeSliceStatus — if all features
* in the slice are done the slice status becomes "complete" automatically.
*
* If MissionAutopilot is configured, delegate slice advancement to it
* (which tracks autopilot state and handles retries). Otherwise fall back
* to the legacy onSliceComplete() path for non-autopilot missions.
*/
private async handleMissionTaskCompletion(taskId: string, sliceId: string): Promise<void> {
if (!this.options.missionStore) return;
const missionStore = this.options.missionStore;
try {
const feature = missionStore.getFeatureByTaskId(taskId);
if (!feature) return;
if (feature.sliceId !== sliceId) {
schedulerLog.warn(
`Task ${taskId} sliceId ${sliceId} does not match linked feature ${feature.id} sliceId ${feature.sliceId}; skipping mission completion update`,
);
return;
}
const sliceIdBeforeUpdate = feature.sliceId;
if (feature.status !== "done") {
missionStore.updateFeatureStatus(feature.id, "done");
schedulerLog.log(`Feature ${feature.id} marked done (task ${taskId} completed)`);
}
// Trigger the mission execution loop to run validation
// This is called regardless of whether the slice is complete - the loop
// handles the validation cycle independently
if (this.options.missionExecutionLoop) {
void this.options.missionExecutionLoop.processTaskOutcome(taskId).catch((err) => {
schedulerLog.error(`Error in missionExecutionLoop.processTaskOutcome for ${taskId}:`, err);
});
}
// Check if the slice became complete after the feature update
const slice = missionStore.getSlice(sliceIdBeforeUpdate);
if (slice && slice.status === "complete") {
// If MissionAutopilot is available AND actively watching this mission,
// delegate progression to it. The autopilot handles: watching missions,
// autoAdvance guard, retry logic, and state tracking. The autopilot
// will call back into scheduler.activateNextPendingSlice() when appropriate.
//
// If autopilot is not watching this mission (e.g., legacy missions with
// autoAdvance=true but no autopilot instance, or autopilot unwatched),
// fall back to onSliceComplete() which uses the compatibility rule.
const autopilot = this.options.missionAutopilot;
const milestone = missionStore.getMilestone(slice.milestoneId);
const missionId = milestone?.missionId;
const isWatching = autopilot && missionId ? autopilot.isWatching(missionId) : false;
if (autopilot && isWatching) {
schedulerLog.log(`Slice ${slice.id} is complete — delegating to autopilot`);
await autopilot.handleTaskCompletion(taskId);
} else {
// Fallback path: onSliceComplete uses autopilotEnabled/autoAdvance compat
schedulerLog.log(`Slice ${slice.id} is complete — triggering auto-advance`);
await this.onSliceComplete(slice);
}
}
} catch (err) {
schedulerLog.error(`Error handling mission task completion for ${taskId}:`, err);
}
}
async onSliceComplete(slice: import("@fusion/core").Slice): Promise<void> {
if (!this.options.missionStore) return;
const missionStore = this.options.missionStore;
try {
const milestone = missionStore.getMilestone(slice.milestoneId);
if (!milestone) {
schedulerLog.warn(`Milestone ${slice.milestoneId} not found for slice ${slice.id}`);
return;
}
const mission = missionStore.getMission(milestone.missionId);
// Use autopilotEnabled as canonical, fall back to autoAdvance for backward compat
const shouldAutoAdvance =
mission?.autopilotEnabled === true || mission?.autoAdvance === true;
if (!mission || mission.status !== "active" || !shouldAutoAdvance) {
return;
}
const missionHierarchy = missionStore.getMissionWithHierarchy(mission.id);
const hasActiveSlice = missionHierarchy?.milestones.some((candidateMilestone) =>
candidateMilestone.slices.some((candidateSlice) =>
candidateSlice.id !== slice.id && candidateSlice.status === "active"
)
);
if (hasActiveSlice) {
schedulerLog.log(`Mission ${mission.id} already has an active slice; skipping auto-advance`);
return;
}
const nextSlice = await this.activateNextPendingSlice(mission.id);
if (nextSlice) {
schedulerLog.log(`Auto-advanced: activated slice ${nextSlice.id} for mission ${mission.id}`);
}
} catch (err) {
schedulerLog.error(`Error handling slice completion for ${slice.id}:`, err);
}
}
/**
* Activate the next pending slice in a mission.
* Finds the first milestone with pending slices and activates
* the first pending slice in that milestone.
*
* @param missionId - Mission ID
* @returns The activated slice, or null if no pending slices
*/
async activateNextPendingSlice(missionId: string): Promise<import("@fusion/core").Slice | null> {
if (!this.options.missionStore) return null;
const missionStore = this.options.missionStore;
try {
const mission = missionStore.getMissionWithHierarchy(missionId);
if (!mission || mission.status !== "active") {
schedulerLog.log(`Mission ${missionId}: not active, skipping slice activation`);
return null;
}
const sortedMilestones = [...mission.milestones].sort((a, b) => a.orderIndex - b.orderIndex);
for (const milestone of sortedMilestones) {
const dependenciesMet = milestone.dependencies.every((dependencyId) => {
const dependency = mission.milestones.find((candidate) => candidate.id === dependencyId);
return dependency?.status === "complete";
});
if (!dependenciesMet) {
continue;
}
const pendingSlice = [...milestone.slices]
.sort((a, b) => a.orderIndex - b.orderIndex)
.find((slice) => slice.status === "pending");
if (!pendingSlice) {
continue;
}
const activated = await missionStore.activateSlice(pendingSlice.id);
schedulerLog.log(`Activated slice ${activated.id} for mission ${missionId}`);
return activated;
}
schedulerLog.log(`Mission ${missionId}: no pending slices to activate`);
return null;
} catch (err) {
schedulerLog.error(`Error activating next slice for mission ${missionId}:`, err);
return null;
}
}
/**
* Reconcile feature status for all active missions on startup.
*
* This ensures that feature statuses are in sync with their linked task
* columns for all missions, not just autopilot-enabled ones. The
* reconciliation logic mirrors MissionAutopilot.reconcileMissionConsistency()
* but runs unconditionally on startup.
*
* @returns The total number of fixes applied across all missions
*/
async reconcileAllMissionFeatures(): Promise<number> {
if (!this.options.missionStore) {
return 0;
}
const missionStore = this.options.missionStore;
let totalFixed = 0;
try {
const missions = missionStore.listMissions();
const activeMissions = missions.filter((m) => m.status === "active");
for (const mission of activeMissions) {
const hierarchy = missionStore.getMissionWithHierarchy(mission.id);
if (!hierarchy) continue;
const activeSlices = hierarchy.milestones
.flatMap((milestone) => milestone.slices)
.filter((slice) => slice.status === "active");
for (const slice of activeSlices) {
for (const feature of slice.features) {
if (!feature.taskId) continue;
const task = await this.store.getTask(feature.taskId);
if (!task) continue;
// Task done but feature not done -> update feature to done
if (task.column === "done" && feature.status !== "done") {
missionStore.updateFeatureStatus(feature.id, "done");
totalFixed++;
continue;
}
// Task in-progress and feature triaged/defined -> update to in-progress
if (
task.column === "in-progress"
&& (feature.status === "triaged" || feature.status === "defined")
) {
missionStore.updateFeatureStatus(feature.id, "in-progress");
totalFixed++;
continue;
}
// Task in triage/todo and feature in-progress -> update to triaged
if (
(task.column === "triage" || task.column === "todo")
&& feature.status === "in-progress"
) {
missionStore.updateFeatureStatus(feature.id, "triaged");
totalFixed++;
}
}
}
}
if (totalFixed > 0) {
schedulerLog.log(`Mission feature reconciliation: fixed ${totalFixed} inconsistencies`);
}
} catch (err) {
schedulerLog.error("Error during mission feature reconciliation:", err);
}
return totalFixed;
}
}