refactor: naming cleanup and crypto package improvements (#551)

* refactor: naming cleanup across all packages

utils/fileutil/fileutil.go

@@ -8,8 +8,8 @@ import (
 	"path/filepath"
 )
 
-// IsFileExists checks if the file exists in the provided path
-func IsFileExists(filename string) bool {
+// FileExists checks if the file exists in the provided path.
+func FileExists(filename string) bool {
 	info, err := os.Stat(filename)
 	if os.IsNotExist(err) {
 		return false

utils/typeutil/typeutil.go

@@ -1,34 +0,0 @@
-package typeutil
-
-import (
-	"time"
-)
-
-func Reverse[T any](s []T) []T {
-	h := make([]T, len(s))
-	for i := 0; i < len(s); i++ {
-		h[i] = s[len(s)-i-1]
-	}
-	return h
-}
-
-func TimeStamp(stamp int64) time.Time {
-	s := time.Unix(stamp, 0)
-	if s.Local().Year() > 9999 {
-		return time.Date(9999, 12, 13, 23, 59, 59, 0, time.Local)
-	}
-	return s
-}
-
-func TimeEpoch(epoch int64) time.Time {
-	maxTime := int64(99633311740000000)
-	if epoch > maxTime {
-		return time.Date(2049, 1, 1, 1, 1, 1, 1, time.Local)
-	}
-	t := time.Date(1601, 1, 1, 0, 0, 0, 0, time.Local)
-	d := time.Duration(epoch)
-	for i := 0; i < 1000; i++ {
-		t = t.Add(d)
-	}
-	return t
-}

utils/typeutil/typeutil_test.go

@@ -1,24 +0,0 @@
-package typeutil
-
-import (
-	"testing"
-)
-
-func TestReverse(t *testing.T) {
-	t.Parallel()
-
-	reverseTestCases := [][]any{
-		{1, 2, 3, 4, 5},
-		{"1", "2", "3", "4", "5"},
-		{"1", 2, "3", "4", 5},
-	}
-
-	for _, ts := range reverseTestCases {
-		h := Reverse(ts)
-		for i := 0; i < len(ts); i++ {
-			if h[len(h)-i-1] != ts[i] {
-				t.Errorf("reverse failed %v != %v", h, ts)
-			}
-		}
-	}
-}