init: add source code from src.zip

src/bridge/sessionIdCompat.ts

@@ -0,0 +1,57 @@
+/**
+ * Session ID tag translation helpers for the CCR v2 compat layer.
+ *
+ * Lives in its own file (rather than workSecret.ts) so that sessionHandle.ts
+ * and replBridgeTransport.ts (bridge.mjs entry points) can import from
+ * workSecret.ts without pulling in these retag functions.
+ *
+ * The isCseShimEnabled kill switch is injected via setCseShimGate() to avoid
+ * a static import of bridgeEnabled.ts → growthbook.ts → config.ts — all
+ * banned from the sdk.mjs bundle (scripts/build-agent-sdk.sh). Callers that
+ * already import bridgeEnabled.ts register the gate; the SDK path never does,
+ * so the shim defaults to active (matching isCseShimEnabled()'s own default).
+ */
+
+let _isCseShimEnabled: (() => boolean) | undefined
+
+/**
+ * Register the GrowthBook gate for the cse_ shim. Called from bridge
+ * init code that already imports bridgeEnabled.ts.
+ */
+export function setCseShimGate(gate: () => boolean): void {
+  _isCseShimEnabled = gate
+}
+
+/**
+ * Re-tag a `cse_*` session ID to `session_*` for use with the v1 compat API.
+ *
+ * Worker endpoints (/v1/code/sessions/{id}/worker/*) want `cse_*`; that's
+ * what the work poll delivers. Client-facing compat endpoints
+ * (/v1/sessions/{id}, /v1/sessions/{id}/archive, /v1/sessions/{id}/events)
+ * want `session_*` — compat/convert.go:27 validates TagSession. Same UUID,
+ * different costume. No-op for IDs that aren't `cse_*`.
+ *
+ * bridgeMain holds one sessionId variable for both worker registration and
+ * session-management calls. It arrives as `cse_*` from the work poll under
+ * the compat gate, so archiveSession/fetchSessionTitle need this re-tag.
+ */
+export function toCompatSessionId(id: string): string {
+  if (!id.startsWith('cse_')) return id
+  if (_isCseShimEnabled && !_isCseShimEnabled()) return id
+  return 'session_' + id.slice('cse_'.length)
+}
+
+/**
+ * Re-tag a `session_*` session ID to `cse_*` for infrastructure-layer calls.
+ *
+ * Inverse of toCompatSessionId. POST /v1/environments/{id}/bridge/reconnect
+ * lives below the compat layer: once ccr_v2_compat_enabled is on server-side,
+ * it looks sessions up by their infra tag (`cse_*`). createBridgeSession still
+ * returns `session_*` (compat/convert.go:41) and that's what bridge-pointer
+ * stores — so perpetual reconnect passes the wrong costume and gets "Session
+ * not found" back. Same UUID, wrong tag. No-op for IDs that aren't `session_*`.
+ */
+export function toInfraSessionId(id: string): string {
+  if (!id.startsWith('session_')) return id
+  return 'cse_' + id.slice('session_'.length)
+}