feat: Waku v2 bridge

Issue #12610

vendor/github.com/status-im/mvds/transport/channel_transport.go

@@ -0,0 +1,54 @@
+package transport
+
+import (
+	"errors"
+	math "math/rand"
+	"sync"
+	"time"
+
+	"github.com/status-im/mvds/protobuf"
+	"github.com/status-im/mvds/state"
+)
+
+// ChannelTransport implements a basic MVDS transport using channels for basic testing purposes.
+type ChannelTransport struct {
+	sync.Mutex
+
+	offline int
+
+	in  <-chan Packet
+	out map[state.PeerID]chan<- Packet
+}
+
+func NewChannelTransport(offline int, in <-chan Packet) *ChannelTransport {
+	return &ChannelTransport{
+		offline: offline,
+		in:      in,
+		out:     make(map[state.PeerID]chan<- Packet),
+	}
+}
+
+func (t *ChannelTransport) AddOutput(id state.PeerID, c chan<- Packet) {
+	t.out[id] = c
+}
+
+func (t *ChannelTransport) Watch() Packet {
+	return <-t.in
+}
+
+func (t *ChannelTransport) Send(sender state.PeerID, peer state.PeerID, payload *protobuf.Payload) error {
+	// @todo we can do this better, we put node onlineness into a goroutine where we just stop the nodes for x seconds
+	// outside of this class
+	math.Seed(time.Now().UnixNano())
+	if math.Intn(100) < t.offline {
+		return nil
+	}
+
+	c, ok := t.out[peer]
+	if !ok {
+		return errors.New("peer unknown")
+	}
+
+	c <- Packet{Sender: sender, Payload: payload}
+	return nil
+}

vendor/github.com/status-im/mvds/transport/transport.go

@@ -0,0 +1,18 @@
+// Package transport contains transport related logic for MVDS.
+package transport
+
+import (
+	"github.com/status-im/mvds/protobuf"
+	"github.com/status-im/mvds/state"
+)
+
+type Packet struct {
+	Sender  state.PeerID
+	Payload *protobuf.Payload
+}
+
+// Transport defines an interface allowing for agnostic transport implementations.
+type Transport interface {
+	Watch() Packet
+	Send(sender state.PeerID, peer state.PeerID, payload *protobuf.Payload) error
+}