fix: journal in-game room insert/remove, rewrite non-room room refs on rename/swap, seed admin grid from edited room, type action switches

1 files changed, 23 insertions, 10 deletions

diff --git a/internal/game/cmd_room_remove.go b/internal/game/cmd_room_remove.go
index 361cc74..79b84d8 100644
--- a/internal/game/cmd_room_remove.go
+++ b/internal/game/cmd_room_remove.go
@@ -166,15 +166,21 @@ func (g *Game) roomRemove(sess *net.Session, args []string) {
 		return
 	}
 
-	// Apply: rewire A's dir exit to C, preserving A's current dir-exit props.
+	// Stage A, C, and B's deletion into ONE journal transaction: the previous
+	// sequential writes could delete B after rewriting A but before C, leaving
+	// the map half-pulled with no recovery record. The transaction restores
+	// every before-image on any failure or crash.
+	txn := g.newTxn()
+
+	// Rewire A's dir exit to C, preserving A's current dir-exit props.
 	aRoom.Exits[dir] = world.RewirePreserving(aExit, cID)
 	aData, err := yaml.Marshal(aRoom)
 	if err != nil {
 		sess.WriteLine("Error updating current room YAML.")
 		return
 	}
-	if err := writeRoomFile(aPath, aData); err != nil {
-		sess.WriteLine("Error writing current room file.")
+	if err := txn.Replace(aPath, aData, 0644); err != nil {
+		sess.WriteLine(fmt.Sprintf("Error writing current room file: %v", err))
 		return
 	}
 
@@ -183,21 +189,28 @@ func (g *Game) roomRemove(sess *net.Session, args []string) {
 	cPath, cPathOK := g.World.GetRoomPath(cID)
 	if cPathOK {
 		cData, cerr := yaml.Marshal(cRoom)
-		if cerr == nil {
-			if werr := writeRoomFile(cPath, cData); werr != nil {
-				sess.WriteLine(fmt.Sprintf("Warning: could not link the opposite exit in room %d: %v", cID, werr))
-			}
+		if cerr != nil {
+			sess.WriteLine(fmt.Sprintf("Error updating room %d YAML: %v", cID, cerr))
+			return
+		}
+		if err := txn.Replace(cPath, cData, 0644); err != nil {
+			sess.WriteLine(fmt.Sprintf("Error linking the opposite exit in room %d: %v", cID, err))
+			return
 		}
 	}
 
-	// Delete B's file.
+	// Delete B's file in the same transaction.
 	bPath, bPathOK := g.World.GetRoomPath(bID)
 	if !bPathOK {
 		sess.WriteLine(fmt.Sprintf("Room file for %d not found.", bID))
 		return
 	}
-	if rerr := os.Remove(bPath); rerr != nil {
-		sess.WriteLine(fmt.Sprintf("Error deleting room file: %v", rerr))
+	if err := txn.Delete(bPath); err != nil {
+		sess.WriteLine(fmt.Sprintf("Error deleting room file: %v", err))
+		return
+	}
+	if err := txn.Commit(); err != nil {
+		sess.WriteLine(fmt.Sprintf("Error committing room remove: %v", err))
 		return
 	}