add chain

pkg/components/handler/option.go

@@ -0,0 +1,25 @@
+package handler
+
+import (
+	"github.com/go-gost/gost/pkg/chain"
+	"github.com/go-gost/gost/pkg/logger"
+)
+
+type Options struct {
+	Chain  *chain.Chain
+	Logger logger.Logger
+}
+
+type Option func(opts *Options)
+
+func LoggerOption(logger logger.Logger) Option {
+	return func(opts *Options) {
+		opts.Logger = logger
+	}
+}
+
+func ChainOption(chain *chain.Chain) Option {
+	return func(opts *Options) {
+		opts.Chain = chain
+	}
+}