refact round 2

content/online.go

@@ -0,0 +1,32 @@
+package content
+
+import (
+	"bbs-server/engine"
+	"fmt"
+	"sort"
+)
+
+// Online displays currently logged-in users
+func Online(s *engine.Session) {
+	s.Printer.BoxHeader(s.Lang["OnlineTitle"], engine.CY)
+
+	snap := s.State.Snapshot()
+	keys := make([]string, 0, len(snap))
+	for k := range snap {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	for _, addr := range keys {
+		user := snap[addr]
+		marker := ""
+		if addr == s.Addr {
+			marker = fmt.Sprintf("  %s%s%s", engine.GR, s.Lang["OnlineYou"], engine.R)
+		}
+		s.Printer.Send(fmt.Sprintf("  %s•%s  %s%s%s%s\r\n", engine.CY, engine.R, engine.WH, user, engine.R, marker))
+	}
+
+	s.Printer.Send(fmt.Sprintf("\r\n  %s%s\r\n", engine.GY,
+		fmt.Sprintf(s.Lang["OnlineTotal"], engine.WH, len(snap), engine.GY, engine.R)))
+	s.Printer.Pause(s.Lang)
+}