improve FormatNumber logic

units.go

@@ -2,6 +2,7 @@ package proxmoxaas_common_lib
 
 import (
 	"fmt"
+	"log"
 	"math"
 	"strings"
 )
@@ -23,28 +24,34 @@ const GiB uint64 = MiB * Base1024
 const TiB uint64 = GiB * Base1024
 
 func FormatNumber(val uint64, base uint64) (string, string) {
+	prefixes := []string{""}
+	switch base {
+	case Base1000:
+		prefixes = prefixesBase1000
+	case Base1024:
+		prefixes = prefixesBase1024
+	default:
+	}
+
 	valf := float64(val)
 	basef := float64(base)
 	steps := 0
-	for math.Abs(valf) > basef && steps < 4 {
+	for math.Abs(valf) > basef && steps < len(prefixes)-1 {
 		valf /= basef
 		steps++
 	}
 
-	switch base {
-	case Base1000:
-		s := fmt.Sprintf("%.4f", valf)
-		s = strings.TrimRight(s, "0")
-		s = strings.TrimRight(s, ".")
-		prefixes := prefixesBase1000
-		return s, prefixes[steps]
-	case Base1024:
-		s := fmt.Sprintf("%.4f", valf)
-		s = strings.TrimRight(s, "0")
-		s = strings.TrimRight(s, ".")
-		prefixes := prefixesBase1024
-		return s, prefixes[steps]
-	default:
-		return "0", ""
-	}
+	s := fmt.Sprintf("%.4f", valf)
+	s = strings.TrimRight(s, "0")
+	s = strings.TrimRight(s, ".")
+	return s, prefixes[steps]
+}
+
+// Converts int, int32, and int64 to uint64. Less than 0 check.
+func SafeUint64[I int | int32 | int64](i I) uint64 {
+	if i < 0 {
+		log.Printf("Tried to cast %d to uint64", i)
+		return 0
+	}
+	return uint64(i)
 }