feat: gamemaster

gamemaster/internal/api/internalhttp/handlers/resolveengineversionimageref.go

@@ -0,0 +1,35 @@
+package handlers
+
+import "net/http"
+
+// newResolveEngineVersionImageRefHandler returns the handler for
+// `GET /api/v1/internal/engine-versions/{version}/image-ref`. It is
+// the hot-path Lobby calls before publishing a `runtime:start_jobs`
+// envelope; the response carries only the image reference.
+func newResolveEngineVersionImageRefHandler(deps Dependencies) http.HandlerFunc {
+	logger := loggerFor(deps.Logger, "internal_rest.resolve_image_ref")
+	return func(writer http.ResponseWriter, request *http.Request) {
+		if deps.EngineVersions == nil {
+			writeError(writer, http.StatusInternalServerError, errorCodeInternal, "engine version service is not wired")
+			return
+		}
+
+		version, ok := extractVersion(writer, request)
+		if !ok {
+			return
+		}
+
+		imageRef, err := deps.EngineVersions.ResolveImageRef(request.Context(), version)
+		if err != nil {
+			logger.ErrorContext(request.Context(), "resolve image ref failed",
+				"version", version,
+				"err", err.Error(),
+			)
+			status, code, message := mapServiceError(err)
+			writeError(writer, status, code, message)
+			return
+		}
+
+		writeJSON(writer, http.StatusOK, imageRefResponse{ImageRef: imageRef})
+	}
+}