feat: Waku v2 bridge

Issue #12610

vendor/github.com/status-im/status-go/services/subscriptions/api.go

@@ -0,0 +1,47 @@
+package subscriptions
+
+import (
+	"fmt"
+	"time"
+
+	"github.com/status-im/status-go/rpc"
+)
+
+type API struct {
+	rpcPrivateClientFunc func() *rpc.Client
+	activeSubscriptions  *Subscriptions
+}
+
+func NewPublicAPI(rpcPrivateClientFunc func() *rpc.Client) *API {
+	return &API{
+		rpcPrivateClientFunc: rpcPrivateClientFunc,
+		activeSubscriptions:  NewSubscriptions(100 * time.Millisecond),
+	}
+}
+
+func (api *API) SubscribeSignal(method string, args []interface{}) (SubscriptionID, error) {
+	var (
+		filter    filter
+		err       error
+		namespace = method[:3]
+	)
+
+	switch namespace {
+	case "shh":
+		filter, err = installShhFilter(api.rpcPrivateClientFunc(), method, args)
+	case "eth":
+		filter, err = installEthFilter(api.rpcPrivateClientFunc(), method, args)
+	default:
+		err = fmt.Errorf("unexpected namespace: %s", namespace)
+	}
+
+	if err != nil {
+		return "", fmt.Errorf("[SubscribeSignal] could not subscribe, failed to call %s: %v", method, err)
+	}
+
+	return api.activeSubscriptions.Create(namespace, filter)
+}
+
+func (api *API) UnsubscribeSignal(id string) error {
+	return api.activeSubscriptions.Remove(SubscriptionID(id))
+}