feat: runtime manager

rtmanager/internal/api/internalhttp/handlers/get.go

@@ -0,0 +1,55 @@
+package handlers
+
+import (
+	"errors"
+	"net/http"
+
+	"galaxy/rtmanager/internal/domain/runtime"
+	"galaxy/rtmanager/internal/service/startruntime"
+)
+
+// newGetHandler returns the handler for
+// `GET /api/v1/internal/runtimes/{game_id}`. The handler reads
+// directly from the runtime record store and translates
+// `runtime.ErrNotFound` to `404 not_found`. Like list, it does not
+// run through the service layer and does not produce an operation_log
+// row.
+func newGetHandler(deps Dependencies) http.HandlerFunc {
+	logger := loggerFor(deps.Logger, "internal_rest.get")
+	return func(writer http.ResponseWriter, request *http.Request) {
+		if deps.RuntimeRecords == nil {
+			writeError(writer, http.StatusInternalServerError,
+				startruntime.ErrorCodeInternal,
+				"runtime records store is not wired",
+			)
+			return
+		}
+
+		gameID, ok := extractGameID(writer, request)
+		if !ok {
+			return
+		}
+
+		record, err := deps.RuntimeRecords.Get(request.Context(), gameID)
+		if errors.Is(err, runtime.ErrNotFound) {
+			writeError(writer, http.StatusNotFound,
+				startruntime.ErrorCodeNotFound,
+				"runtime record not found",
+			)
+			return
+		}
+		if err != nil {
+			logger.ErrorContext(request.Context(), "get runtime record",
+				"game_id", gameID,
+				"err", err.Error(),
+			)
+			writeError(writer, http.StatusInternalServerError,
+				startruntime.ErrorCodeInternal,
+				"failed to read runtime record",
+			)
+			return
+		}
+
+		writeJSON(writer, http.StatusOK, encodeRuntimeRecord(record))
+	}
+}