1 files changed, 51 insertions, 0 deletions
diff --git a/internal/app/error.go b/internal/app/error.go
new file mode 100644
index 00000000..7c18a89e
--- /dev/null
+++ b/internal/app/error.go
@@ -0,0 +1,51 @@
+package app
+
+import (
+	"fmt"
+	"reflect"
+)
+
+// baseError implements a basic error container
+type baseError struct {
+	Err error
+}
+
+func (e *baseError) Error() string {
+	return e.Err.Error()
+}
+
+func (e *baseError) Unwrap() error {
+	return e.Err
+}
+
+// BaseError implements an error container with a user-facing message
+type BaseError struct {
+	message string
+	baseError
+}
+
+// Message returns a user-facing error message
+func (e *BaseError) Message() string {
+	return e.message
+}
+
+func wrapError(err error, a ...any) *BaseError {
+	return &BaseError{
+		message:   fmt.Sprintln(a...),
+		baseError: baseError{err},
+	}
+}
+
+var (
+	baseErrorType = reflect.TypeFor[*BaseError]()
+)
+
+func AsBaseError(err error, target **BaseError) bool {
+	v := reflect.ValueOf(err)
+	if !v.CanConvert(baseErrorType) {
+		return false
+	}
+
+	*target = v.Convert(baseErrorType).Interface().(*BaseError)
+	return true
+}