enable coloring by UIDs

internal/logging/logging.go

@@ -2,14 +2,20 @@ package logging
 
 import (
 	"fmt"
+	"hash/fnv"
 	"log"
 	"os"
+	"strconv"
 )
 
 const (
 	ColorNone = iota
 	ColorRed
 	ColorGreen
+	ColorYellow
+	ColorBlue
+	ColorPurple
+	ColorTeal
 )
 
 type Logger struct {
@@ -43,14 +49,15 @@ func (l *Logger) Errorf(debug bool, format string, v ...interface{}) {
 // Eventf writes an event with timestamp to stdout
 func (l *Logger) Eventf(color int, format string, v ...interface{}) {
 	msg := fmt.Sprintf(format, v...)
-
-	switch color {
-	case ColorRed:
-		msg = fmt.Sprintf("\x1b[31;1m%s\x1b[0m", msg)
-	case ColorGreen:
-		msg = fmt.Sprintf("\x1b[32;1m%s\x1b[0m", msg)
-	default:
+	if color != ColorNone {
+		msg = fmt.Sprintf("\x1b[%d;1m%s\x1b[0m", 30+color, msg)
 	}
 
 	l.eventLogger.Printf("%s", msg)
 }
+
+func GetColorByUID(uid int) int {
+	h := fnv.New32a()
+	h.Write([]byte(strconv.Itoa(uid)))
+	return (int(h.Sum32()) % (ColorTeal)) + 1
+}