Files
Ekklesia/apps/api/tests/support/in-memory-module-lifecycle.ts
T
ekklesiaandClaude Opus 5 7729c99e24
CI / verify (pull_request) Successful in 35s
CI / infrastructure-smoke (pull_request) Successful in 13s
CI / migration-smoke (pull_request) Successful in 46s
feat: add the minimal operational module lifecycle
Ekklesia had no notion of a module being on or off: the accepted module set
was exactly "whatever discovery found on disk", and `ModuleLifecycleStage`
named nine states nothing produced or consumed. This replaces that vocabulary
with two axes that real code produces — persistent, administrator-owned
configuration (`enabled`/`disabled`) and per-boot runtime observation
(`running`/`disabled`/`blocked`) — and wires them through startup.

- One Core table (`ekklesia_core_module_state`, migration 0004) holding only
  `module_id` and `enabled`. A module with no record is enabled by default, so
  deploying a module is still sufficient to run it and discovery never needs an
  initialization write. A record for an undeployed module is retained and
  ignored, so redeploying restores the decision.
- `resolveModuleEligibility` is pure: a disabled module transitively blocks
  every module that *requires* it (module and capability edges alike) with a
  structured reason naming the provider; optional dependencies never block; and
  a missing, incompatible, or cyclic dependency stays discovery's concern.
- `startApi` starts only the eligible set and builds the UI publication
  registry from that same list, so routes, artifacts, browser inventory, and
  Dashboard navigation all follow one authoritative set. A disabled module is
  never imported, so there is no per-request enablement check anywhere.
- Startup stays all-or-nothing, deliberately; there is consequently no `failed`
  runtime state. `pnpm modules:enable`/`modules:disable` is the out-of-band
  recovery path for a module that breaks startup.
- Changes take effect at the next start, and the read model reports
  configuration, runtime, and `restartRequired` separately rather than claiming
  a module stopped when it has not.
- Migration participation and permission composition still span the deployed
  and discovered inventories respectively, unchanged.
- New restricted platform permission `core.modules.lifecycle.manage` gates both
  reading and changing enablement, at a sibling prefix (`/api/v1/module-lifecycle`)
  that cannot collide with the module route namespace.
- `pnpm doctor` gains a `modules.lifecycle` check so "why is this module
  unavailable?" is answerable without reading logs.

See ADR 0028.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-08-22 14:45:34 -05:00

77 lines
3.1 KiB
TypeScript

import type { ModuleEnablementRecord } from "@ekklesia/contracts";
import type {
DiscoveredModule,
ModuleLifecycleConfiguration,
ModuleLifecycleSnapshot,
ModuleLifecycleStore,
SetModuleEnabledInput,
} from "@ekklesia/core/modules";
import { ModuleLifecycleStoreError, resolveModuleEligibility } from "@ekklesia/core/modules";
/**
* An in-memory `ModuleLifecycleStore` for tests that exercise **routing and resolution**, not
* persistence.
*
* It reproduces only what those tests depend on — records survive a write and read back in
* module-id order, and an invalid identifier is rejected — and deliberately reproduces nothing
* else. The real table's constraints, the upsert's conflict target, and the fact that a record for
* an undeployed module is retained are proven against real PostgreSQL in
* `core/tests/module-lifecycle-store.integration.ts`, so this double can never quietly stand in for
* a persistence guarantee nobody checked.
*/
export function createInMemoryModuleLifecycleStore(
seed: readonly ModuleEnablementRecord[] = [],
): ModuleLifecycleStore {
const records = new Map<string, boolean>(
seed.map((record) => [record.moduleId, record.enabled] as const),
);
return Object.freeze({
async readConfiguration(): Promise<ModuleLifecycleConfiguration> {
return Object.freeze({
modules: Object.freeze(
[...records.entries()]
.sort(([left], [right]) => (left < right ? -1 : left > right ? 1 : 0))
.map(([moduleId, enabled]) => Object.freeze({ enabled, moduleId })),
),
});
},
async setEnabled(input: SetModuleEnabledInput): Promise<ModuleEnablementRecord> {
if (!/^[a-z][a-z0-9]*(?:-[a-z0-9]+)*$/u.test(input.moduleId)) {
throw new ModuleLifecycleStoreError("MODULE_LIFECYCLE_MODULE_ID_INVALID");
}
records.set(input.moduleId, input.enabled);
return Object.freeze({ enabled: input.enabled, moduleId: input.moduleId });
},
});
}
/**
* Builds the boot snapshot the same way `startApi` does — resolve eligibility from the discovered
* inventory and the stored configuration, then record what would have started — rather than
* hand-writing one, so a test can never assert against a snapshot the real composition would never
* produce.
*/
export function moduleLifecycleSnapshotFor(
discoveredModules: readonly DiscoveredModule[],
configuration: ModuleLifecycleConfiguration = { modules: [] },
): ModuleLifecycleSnapshot {
const resolution = resolveModuleEligibility(discoveredModules, configuration);
return Object.freeze({
discoveredModules,
eligibility: resolution.entries,
startedModuleIds: Object.freeze(resolution.eligibleModules.map((module) => module.manifest.id)),
});
}
/** The lifecycle option for a `createApiApp` caller that exercises no modules at all — the explicit
* "no modules" statement the required option asks for, never an implicit default. */
export function emptyModuleLifecycle(): {
readonly snapshot: ModuleLifecycleSnapshot;
readonly store: ModuleLifecycleStore;
} {
return {
snapshot: moduleLifecycleSnapshotFor([]),
store: createInMemoryModuleLifecycleStore(),
};
}