msd-core/src/audit-command-router.cts

'use strict';
/**
 * Audit command routers — CLI dispatchers for `gsd-tools audit-uat` and
 * `gsd-tools audit-open`.
 *
 * ADR-959 (phase 4d-impl-3): audit command family cutover.
 * Extracted from the hardcoded `case 'audit-uat':` and `case 'audit-open':`
 * arms in gsd-tools.cjs.  Behaviour is preserved byte-for-behaviour from the
 * prior inline cases; the dispatch path now flows:
 *   default → dispatchCapabilityCommand →
 *   require(audit-command-router.cjs) → routeAuditUat | routeAuditOpen.
 *
 * Router signatures: { args, cwd, raw, error } — identical to the existing
 * host routers.  No new handler/arg convention; the capability registry
 * discovers these routers by name.
 *
 * Test seam: pass `_uat` / `_audit` / `_core` in the options object to inject
 * recording mocks instead of the real modules.  The `_`-prefix follows the
 * repo's established seam convention (see graphify-command-router.cts).
 * Production callers omit them.
 *
 * Lazy requires: uat.cjs and audit.cjs are required INSIDE each route function
 * so the unneeded module is never loaded (preserves equivalence with the old
 * inline case arms which each required only their own module).
 */

// eslint-disable-next-line @typescript-eslint/no-require-imports
import io = require('./io.cjs');
// Phase 2 (#1646): route through the Hub per ADR-959 §III(B) line 75.
// eslint-disable-next-line @typescript-eslint/no-require-imports
import cjsCommandRouterAdapter = require('./cjs-command-router-adapter.cjs');

const { routeHubCommandFamily } = cjsCommandRouterAdapter;

// ─── Types ────────────────────────────────────────────────────────────────────

interface UatModule {
  cmdAuditUat(cwd: string, raw: boolean): void;
}

interface AuditModule {
  auditOpenArtifacts(cwd: string): unknown;
  formatAuditReport(result: unknown): string;
}

interface CoreModule {
  output(value: unknown, raw: boolean, rawValue?: string): void;
}

interface RouteAuditUatOptions {
  args: string[];
  cwd: string;
  raw: boolean;
  error: (message: string, reason?: string) => void;
  /** Test seam: inject a mock uat module. Defaults to the real module. */
  _uat?: UatModule;
}

interface RouteAuditOpenOptions {
  args: string[];
  cwd: string;
  raw: boolean;
  error: (message: string, reason?: string) => void;
  /** Test seam: inject a mock audit module. Defaults to the real module. */
  _audit?: AuditModule;
  /** Test seam: inject a mock core module to capture output calls. Defaults to the real module. */
  _core?: CoreModule;
}

// ─── routeAuditUat ────────────────────────────────────────────────────────────

function routeAuditUat({ args, cwd, raw, error, _uat }: RouteAuditUatOptions): void {
  // Suppress unused-variable warnings for args/error — this command has no
  // subcommands and passes raw through directly to the uat module.
  void args;
  void error;
  // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-unsafe-assignment
  const u: UatModule = _uat ?? require('./uat.cjs');

  // Phase 2 (#1646): routes through the Hub for uniform observability and
  // HandlerFailure taxonomy. audit-uat has no subcommands — a synthetic 'run'
  // defaultSubcommand gives the Hub a single-handler manifest. The dispatch is
  // trivial but the observability seam (DispatchEvent, GSD_AUDIT=1 trace) is
  // now consistent with graphify/intel/host routers.
  routeHubCommandFamily({
    family: 'audit-uat',
    args,
    subcommands: ['run'],
    defaultSubcommand: 'run',
    handlers: {
      run: () => u.cmdAuditUat(cwd, raw),
    },
    unknownMessage: (subcommand: string) =>
      `Unknown audit-uat subcommand: "${subcommand}". audit-uat takes no subcommands.`,
    error,
    cwd,
    raw,
  });
}

// ─── routeAuditOpen ──────────────────────────────────────────────────────────

function routeAuditOpen({ args, cwd, raw, error, _audit, _core }: RouteAuditOpenOptions): void {
  // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-unsafe-assignment
  const a: AuditModule = _audit ?? require('./audit.cjs');
  const c: CoreModule = _core ?? io;

  // Phase 2 (#1646): routes through the Hub for uniform observability.
  // `--json` is a flag, not a subcommand — capture it in the closure and strip
  // it from args before Hub dispatch so it isn't mistaken for a subcommand by
  // the manifest check. The handler then branches on wantJson for the two
  // output shapes (JSON object vs human-readable formatted report).
  const wantJson = args.includes('--json');
  const hubArgs = wantJson ? args.filter((arg) => arg !== '--json') : args;

  routeHubCommandFamily({
    family: 'audit-open',
    args: hubArgs,
    subcommands: ['run'],
    defaultSubcommand: 'run',
    handlers: {
      run: () => {
        const result = a.auditOpenArtifacts(cwd);
        if (wantJson) {
          // io.output JSON-stringifies its first arg; pass the object directly.
          c.output(result, raw);
        } else {
          // Human-readable report must bypass JSON encoding — use the rawValue
          // form (third arg) which io.output emits verbatim.
          c.output(null, true, a.formatAuditReport(result));
        }
      },
    },
    unknownMessage: (subcommand: string) =>
      `Unknown audit-open subcommand: "${subcommand}". audit-open takes no subcommands (use --json for JSON output).`,
    error,
    cwd,
    raw,
  });
}

export = {
  routeAuditUat,
  routeAuditOpen,
};