refactor(errors): rename ContextAwareErr to WrappedErr

internal/errors/errors.go

@@ -9,15 +9,15 @@ import (
 var ErrCacheUninitialized = errors.New("the route cache is uninitialized")
 
 type ErrRouteNotFound struct {
-	n string
+	route string
+}
+
+func NewErrRouteNotFound(route string) error {
+	return &ErrRouteNotFound{route: route}
 }
 
 func (e ErrRouteNotFound) Error() string {
-	return "route not found: " + string(e.n)
-}
-
-func NewErrRouteNotFound(n string) error {
-	return &ErrRouteNotFound{n: n}
+	return "route not found: " + string(e.route)
 }
 
 type ErrBadgerInit struct {
@@ -25,6 +25,10 @@ type ErrBadgerInit struct {
 	subDir  string
 }
 
+func NewErrBadgerInit(baseDir, subDir string) error {
+	return &ErrBadgerInit{baseDir: baseDir, subDir: subDir}
+}
+
 func (e ErrBadgerInit) Error() string {
 	if e.subDir == "" {
 		return fmt.Sprintf("failed to initialize badger store at base directory: %s", e.baseDir)
@@ -33,19 +37,19 @@ func (e ErrBadgerInit) Error() string {
 	return fmt.Sprintf("failed to initialize badger store at directory: %s", filepath.Join(e.baseDir, e.subDir))
 }
 
-func NewErrBadgerInit(baseDir, subDir string) error {
-	return &ErrBadgerInit{baseDir: baseDir, subDir: subDir}
+type WrappedErr struct {
+	e    error
+	with error
 }
 
-type ContextAwareErr struct {
-	base    error
-	current error
+func Wrap(e, with error) WrappedErr {
+	return WrappedErr{e: e, with: with}
 }
 
-func NewContextAwareErr(base, e error) ContextAwareErr {
-	return ContextAwareErr{base: base, current: e}
+func (e WrappedErr) Error() string {
+	return fmt.Sprintf(`%s: %s`, e.e, e.with)
 }
 
-func (e ContextAwareErr) Error() string {
-	return fmt.Sprintf(`%s: %s`, e.base, e.current)
+func (e WrappedErr) Unwrap() error {
+	return e.e
 }

route_cache.go

@@ -42,7 +42,7 @@ func WithStore(store Storer) RouteCacheOpt {
 func NewRouteCache(opts ...RouteCacheOpt) (*routeCache, error) {
 	s, err := badger.NewBadgerStore(badger.WithSubDir("route_cache"))
 	if err != nil {
-		return nil, jerr.NewContextAwareErr(jerr.ErrCacheUninitialized, err)
+		return nil, jerr.Wrap(jerr.ErrCacheUninitialized, err)
 	}
 
 	c = &routeCache{