| 1 | import type { ProjectRuntimeTopic } from "./types"; |
| 2 | import type { PendingInteraction, RecoveryStatus, Todo } from "../generated/desktopContract.generated"; |
| 3 | import { sameSessionIdentity, type SessionIdentity } from "./sessionIdentity"; |
| 4 | |
| 5 | export interface RuntimeState { |
| 6 | schemaVersion: number; |
| 7 | hostId?: string; |
| 8 | sessionId?: string; |
| 9 | sessionCodec?: string; |
| 10 | projectionEpoch?: string; |
| 11 | runtimeEpoch: string; |
| 12 | activityRevision: number; |
| 13 | revision: number; |
| 14 | phase: "idle" | "executing" | "finishing" | "cancelling" | "recovery_required" | "closed"; |
| 15 | running: boolean; |
| 16 | turnId: string; |
| 17 | turnStatus: string; |
| 18 | turnEventSeq: number; |
| 19 | committedEventSeq?: number; |
| 20 | durableEventSeq?: number; |
| 21 | persistenceStatus?: "ready" | "pending" | "failed" | "uncertain" | "unavailable"; |
| 22 | persistenceError?: string; |
| 23 | headId?: string; |
| 24 | pendingPrompt: boolean; |
| 25 | pendingInteractions?: PendingInteraction[]; |
| 26 | todos?: Todo[]; |
| 27 | todoWritten?: boolean; |
| 28 | cancelRequested: boolean; |
| 29 | cancellable: boolean; |
| 30 | backgroundJobs: number; |
| 31 | activity: string; |
| 32 | recovery?: RecoveryStatus | null; |
| 33 | maintenance?: { |
| 34 | operationId: string; |
| 35 | kind: string; |
| 36 | activity: "running" | "cancelling" | "finalizing" | "recovery_required" | string; |
| 37 | status?: string; |
| 38 | operationRevision?: number; |
| 39 | runtimeEpoch?: string; |
| 40 | errorCode?: string; |
| 41 | detail?: string; |
| 42 | applied?: boolean; |
| 43 | inputTokens?: number; |
| 44 | resultTokens?: number; |
| 45 | messages?: number; |
| 46 | }; |
| 47 | } |
| 48 | |
| 49 | export function acceptSessionRuntimeSnapshot(current: RuntimeState | undefined, next: RuntimeState, allowProducerBaseline = false): RuntimeState { |
| 50 | if (!current) return next; |
| 51 | if (current.projectionEpoch !== next.projectionEpoch) return allowProducerBaseline ? next : current; |
| 52 | if (next.revision < current.revision) return current; |
| 53 | return next.revision === current.revision ? current : next; |
| 54 | } |
| 55 | export interface RuntimeSession { |
| 56 | tabId: string; |
| 57 | scope: string; |
| 58 | workspaceRoot: string; |
| 59 | topicId: string; |
| 60 | sessionId?: string; |
| 61 | sessionPath: string; |
| 62 | sessionGeneration: number; |
| 63 | open: boolean; |
| 64 | remote: boolean; |
| 65 | hostId?: string; |
| 66 | freshness: "synced" | "unknown" | "syncing"; |
| 67 | state: RuntimeState; |
| 68 | } |
| 69 | export interface RuntimeProjection { |
| 70 | epoch: string; |
| 71 | revision: number; |
| 72 | sessions: RuntimeSession[]; |
| 73 | topics: ProjectRuntimeTopic[]; |
| 74 | } |
| 75 | |
| 76 | /** A tab is a reusable surface, not a session identity. Unknown/blank bindings |
| 77 | * must not adopt the previous session while navigation metadata catches up. */ |
| 78 | export function selectRuntimeSession(snapshot: RuntimeProjection | undefined, tabId: string | undefined, identity: SessionIdentity | string | undefined) { |
| 79 | const target = typeof identity === "string" ? { sessionPath: identity } : identity; |
| 80 | if (!tabId || !target) return undefined; |
| 81 | if (typeof identity !== "string" && target.sessionGeneration == null) return undefined; |
| 82 | return snapshot?.sessions.find(session => session.open && session.tabId === tabId && sameSessionIdentity(target, { |
| 83 | session: target.session?.sessionId && session.sessionId |
| 84 | ? { hostId: session.hostId || "local", sessionId: session.sessionId } |
| 85 | : undefined, |
| 86 | sessionPath: session.sessionPath, |
| 87 | sessionGeneration: session.sessionGeneration, |
| 88 | })); |
| 89 | } |
| 90 | |
| 91 | export function selectRuntime(session?: RuntimeSession, failed = false) { |
| 92 | const state = session?.state; |
| 93 | const known = state?.schemaVersion === 1; |
| 94 | const unknown = Boolean(session && (failed || session.freshness !== "synced")); |
| 95 | const finishing = known && state.phase === "finishing"; |
| 96 | const kind = unknown ? "unknown" : !known ? "legacy" : state.maintenance?.activity === "finalizing" ? "maintenance_finalizing" |
| 97 | : state.maintenance?.activity === "cancelling" ? "maintenance_cancelling" |
| 98 | : state.maintenance?.activity === "recovery_required" ? "recovery_required" |
| 99 | : state.maintenance ? "maintenance_running" : finishing ? "finishing" |
| 100 | : state.phase === "recovery_required" ? "recovery_required" |
| 101 | : state.cancelRequested || state.phase === "cancelling" ? "cancelling" : state.pendingPrompt ? "waiting_confirmation" |
| 102 | : state.phase === "executing" ? state.activity === "streaming" ? "streaming" : "thinking" |
| 103 | : state.backgroundJobs > 0 ? "background_job" : "idle"; |
| 104 | return { kind, known, unknown, finishing, state, |
| 105 | running: known ? state.running : undefined, |
| 106 | cancellable: known ? !unknown && !finishing && state.cancellable && !state.cancelRequested : undefined, |
| 107 | spinning: !unknown && (kind === "thinking" || kind === "streaming" || kind === "cancelling" || kind === "maintenance_running" || kind === "maintenance_cancelling" || kind === "maintenance_finalizing" || kind === "background_job"), |
| 108 | }; |
| 109 | } |
| 110 | |
| 111 | export function createRuntimeStateStore() { |
| 112 | let snapshot: RuntimeProjection | undefined; |
| 113 | let failed = false; |
| 114 | const listeners = new Set<() => void>(); |
| 115 | const notify = () => listeners.forEach(listener => listener()); |
| 116 | return { |
| 117 | getSnapshot: () => snapshot, |
| 118 | getFailed: () => failed, |
| 119 | subscribe(listener: () => void) { listeners.add(listener); return () => { listeners.delete(listener); }; }, |
| 120 | fail() { if (!failed) { failed = true; notify(); } }, |
| 121 | commit(next: RuntimeProjection) { |
| 122 | if (snapshot === next && !failed) return; |
| 123 | snapshot = next; |
| 124 | failed = false; |
| 125 | notify(); |
| 126 | }, |
| 127 | }; |
| 128 | } |
| 129 | export const runtimeStateStore = createRuntimeStateStore(); |
| 130 |