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stack/packages/mosaic/src/fleet/connectors/registry.ts
Jason Woltje 858d90329d
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feat(fleet): F4 Phase 1 — chat connector abstraction + Matrix design (#617)
Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>
2026-06-22 16:14:32 +00:00

77 lines
2.7 KiB
TypeScript

/**
* Connector registry (F4 Phase 1).
*
* A tiny extensible registry so connector implementations (Phase 2: tmux,
* Discord, Matrix) register a factory by kind and fleet core resolves one from
* roster config without branching on kind. Phase 1 ships the registry + the
* config→kind resolution; the connector factories land in Phase 2.
*/
import {
type ConnectorConfig,
type ConnectorKind,
type OrchestratorConnector,
DEFAULT_CONNECTOR_KIND,
} from './types.js';
/** The set of connector kinds the framework recognizes. */
export const KNOWN_CONNECTOR_KINDS: readonly ConnectorKind[] = ['tmux', 'discord', 'matrix'];
/** Type guard: is `value` a known connector kind? */
export function isKnownConnectorKind(value: unknown): value is ConnectorKind {
return typeof value === 'string' && (KNOWN_CONNECTOR_KINDS as readonly string[]).includes(value);
}
/**
* Resolve the connector kind from roster config. Absent config ⇒ the default
* (tmux) so existing rosters keep working unchanged (back-compat).
*/
export function resolveConnectorKind(config?: ConnectorConfig): ConnectorKind {
return config?.kind ?? DEFAULT_CONNECTOR_KIND;
}
/** A factory builds a live connector from its validated config. */
export type ConnectorFactory = (config: ConnectorConfig) => OrchestratorConnector;
/** Thrown when no factory is registered for a requested kind. */
export class ConnectorNotImplementedError extends Error {
constructor(public readonly kind: ConnectorKind) {
super(
`Connector "${kind}" is not implemented yet. ` +
`Register a factory via registerConnector('${kind}', …) (F4 Phase 2).`,
);
this.name = 'ConnectorNotImplementedError';
}
}
const registry = new Map<ConnectorKind, ConnectorFactory>();
/** Register a connector factory for a kind (idempotent — last registration wins). */
export function registerConnector(kind: ConnectorKind, factory: ConnectorFactory): void {
registry.set(kind, factory);
}
/** True when a factory is registered for `kind`. */
export function hasConnector(kind: ConnectorKind): boolean {
return registry.has(kind);
}
/**
* Build a connector from roster config. Throws `ConnectorNotImplementedError`
* when no factory is registered for the resolved kind (the Phase-1 default for
* every kind until Phase 2 registers them).
*/
export function createConnector(config?: ConnectorConfig): OrchestratorConnector {
const kind = resolveConnectorKind(config);
const factory = registry.get(kind);
if (!factory) {
throw new ConnectorNotImplementedError(kind);
}
return factory(config ?? { kind });
}
/** Test/runtime helper: drop all registrations. */
export function _resetConnectorRegistry(): void {
registry.clear();
}