54 lines
2.2 KiB
TypeScript
54 lines
2.2 KiB
TypeScript
/**
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* Package-owned strict Schedule stream invariant.
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* @module @deepseek-ai/dsh-tool-schedule/invariant
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*/
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import type { Context } from '@deepseek-ai/cordis'
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import type { Session, SessionEvent } from '@deepseek-ai/dsh-session'
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import type { InvariantFailure, InvariantInstaller } from '@deepseek-ai/dsh-invariants'
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import { foldScheduleEvents, ScheduleLogError } from './domain.ts'
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const PACKAGE_NAME = '@deepseek-ai/dsh-tool-schedule'
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/** Cordis invariant-companion plugin name. */
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export const name = 'tool-schedule-invariant'
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/** Service required before reserving this package's invariant ownership. */
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export const inject = ['invariants']
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/** Validate a complete exact-session stream under its fork suffix policy. */
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function validate(events: readonly SessionEvent[], seedLength: number, fail: InvariantFailure): void {
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try {
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foldScheduleEvents(events, seedLength)
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} catch (error: unknown) {
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/* v8 ignore next -- foldScheduleEvents normalizes every rejected stream to ScheduleLogError. */
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if (!(error instanceof ScheduleLogError)) throw error
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fail(error.message)
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}
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}
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/* jscpd:ignore-start -- package companions share replay and dispatch plumbing */
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/** Install replay and pre-append validation for the owned event stream. */
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const install: InvariantInstaller = Object.assign((ctx: Context, fail: InvariantFailure) => {
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for (const session of ctx.sessions.list()) {
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validate(session.events, session.header.seedLength ?? 0, fail)
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}
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ctx.on('session/created', (session) => {
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validate(session.events, session.header.seedLength ?? 0, fail)
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}, { global: true })
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ctx.on('internal/dispatch', (_mode, eventName, args) => {
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if (eventName !== 'session/event') return
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const [session, event] = args as [Session, SessionEvent]
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if (event.type !== 'schedule/change') return
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validate([...session.events, event], session.header.seedLength ?? 0, fail)
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}, { global: true })
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}, { inject: ['sessions'] })
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/* jscpd:ignore-end */
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/**
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* Register the package-owned invariant companion.
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* @param ctx - Cordis context carrying the invariant registry.
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* @returns Exact registration disposer after child setup succeeds.
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*/
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export const apply = (ctx: Context): Promise<() => void> =>
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Promise.resolve(ctx.invariants.register(PACKAGE_NAME, install))
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