FEAT: randomize room number

randomize room number when not set but the night number is set

assignroom.go

@@ -32,6 +32,31 @@ func AssignExtraRooms(rooms []RoomFolder, roomsPerNight int) {
 	}
 }
 
+func AssignRandomNightRooms(rooms []RoomFolder, roomsPerNight int) {
+	latestrooms := make(map[int]int)
+
+	for _, r := range rooms {
+		if latestroom, ok := latestrooms[r.Cfg.night]; !ok {
+			latestrooms[r.Cfg.night] = r.Cfg.room
+		} else if r.Cfg.room > latestroom {
+			latestrooms[r.Cfg.night] = r.Cfg.room
+		}
+	}
+
+	for i, r := range rooms {
+		if r.Cfg.night <= 0 || r.Cfg.room > 0 {
+			continue
+		}
+
+		if latestrooms[r.Cfg.night] < 0 {
+			latestrooms[r.Cfg.night] = 0
+		}
+
+		latestrooms[r.Cfg.night]++
+		rooms[i].Cfg.room = latestrooms[r.Cfg.night]
+	}
+}
+
 func CheckDuplicateRooms(rooms []RoomFolder) error {
 	maxnight := 0
 	maxroom := 0