Move funcs package to internal (#1977)

Signed-off-by: Dave Henderson <dhenderson@gmail.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/internal/funcs/base64.go b/internal/funcs/base64.go
new file mode 100644
index 00000000..b25a9091
--- /dev/null
+++ b/internal/funcs/base64.go
@@ -0,0 +1,77 @@
+package funcs
+
+import (
+	"context"
+
+	"github.com/hairyhenderson/gomplate/v4/base64"
+	"github.com/hairyhenderson/gomplate/v4/conv"
+)
+
+// Base64NS - the base64 namespace
+//
+// Deprecated: don't use
+func Base64NS() *Base64Funcs {
+	return &Base64Funcs{}
+}
+
+// AddBase64Funcs -
+//
+// Deprecated: use [CreateBase64Funcs] instead
+func AddBase64Funcs(f map[string]interface{}) {
+	for k, v := range CreateBase64Funcs(context.Background()) {
+		f[k] = v
+	}
+}
+
+// CreateBase64Funcs -
+func CreateBase64Funcs(ctx context.Context) map[string]interface{} {
+	f := map[string]interface{}{}
+
+	ns := &Base64Funcs{ctx}
+	f["base64"] = func() interface{} { return ns }
+
+	return f
+}
+
+// Base64Funcs -
+type Base64Funcs struct {
+	ctx context.Context
+}
+
+// Encode -
+func (Base64Funcs) Encode(in interface{}) (string, error) {
+	b := toBytes(in)
+	return base64.Encode(b)
+}
+
+// Decode -
+func (Base64Funcs) Decode(in interface{}) (string, error) {
+	out, err := base64.Decode(conv.ToString(in))
+	return string(out), err
+}
+
+// DecodeBytes -
+func (Base64Funcs) DecodeBytes(in interface{}) ([]byte, error) {
+	out, err := base64.Decode(conv.ToString(in))
+	return out, err
+}
+
+type byter interface {
+	Bytes() []byte
+}
+
+func toBytes(in interface{}) []byte {
+	if in == nil {
+		return []byte{}
+	}
+	if s, ok := in.([]byte); ok {
+		return s
+	}
+	if s, ok := in.(byter); ok {
+		return s.Bytes()
+	}
+	if s, ok := in.(string); ok {
+		return []byte(s)
+	}
+	return []byte(conv.ToString(in))
+}