feat: gamemaster

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

@@ -0,0 +1,43 @@
+package handlers
+
+import (
+	"errors"
+	"net/http"
+
+	"galaxy/gamemaster/internal/domain/runtime"
+)
+
+// newGetRuntimeHandler returns the handler for
+// `GET /api/v1/internal/runtimes/{game_id}`. Reads from
+// `RuntimeRecordsReader.Get` and translates `runtime.ErrNotFound` to
+// `404 runtime_not_found`.
+func newGetRuntimeHandler(deps Dependencies) http.HandlerFunc {
+	logger := loggerFor(deps.Logger, "internal_rest.get_runtime")
+	return func(writer http.ResponseWriter, request *http.Request) {
+		if deps.RuntimeRecords == nil {
+			writeError(writer, http.StatusInternalServerError, 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 err != nil {
+			if errors.Is(err, runtime.ErrNotFound) {
+				writeError(writer, http.StatusNotFound, errorCodeRuntimeNotFound, "runtime not found")
+				return
+			}
+			logger.ErrorContext(request.Context(), "get runtime record failed",
+				"game_id", gameID,
+				"err", err.Error(),
+			)
+			writeError(writer, http.StatusInternalServerError, errorCodeInternal, "failed to read runtime record")
+			return
+		}
+
+		writeJSON(writer, http.StatusOK, encodeRuntimeRecord(record))
+	}
+}