fix(gateway): show the login when the token is rejected

Closes #843

internal/gateway/gateway.go

@@ -16,5 +16,5 @@ func New(id discordgateway.Identifier) *discordgateway.Gateway {
 
 	conn := ws.NewConnWithDialer(codec, NewDialer())
 	socket := ws.NewCustomWebsocket(conn, discordgateway.AddGatewayParams(gatewayURL))
-	return discordgateway.FromWebsocketGateway(ws.NewGateway(socket, nil), discordgateway.State{Identifier: id})
+	return discordgateway.FromWebsocketGateway(ws.NewGateway(socket, &discordgateway.DefaultGatewayOpts), discordgateway.State{Identifier: id})
 }

internal/gateway/gateway_test.go

@@ -0,0 +1,17 @@
+package gateway
+
+import (
+	"testing"
+
+	discordgateway "github.com/ayn2op/arikawa/v3/gateway"
+	"github.com/ayn2op/arikawa/v3/utils/ws"
+)
+
+func TestNew(t *testing.T) {
+	t.Run("authentication failed", func(t *testing.T) {
+		opts := New(discordgateway.DefaultIdentifier("token")).Opts()
+		if !opts.ErrorIsFatalClose(&ws.CloseEvent{Code: 4004}) {
+			t.Error("gateway reconnects after the token is rejected")
+		}
+	})
+}

internal/ui/chat/msg.go

@@ -2,22 +2,34 @@ package chat
 
 import (
 	"context"
+	"errors"
 	"log/slog"
 	"time"
 
 	"github.com/ayn2op/arikawa/v3/discord"
 	"github.com/ayn2op/arikawa/v3/gateway"
+	"github.com/ayn2op/arikawa/v3/utils/ws"
 	"github.com/ayn2op/discordo/internal/ui/chat/composer"
 	"github.com/ayn2op/discordo/internal/ui/chat/guildstree"
 	"github.com/ayn2op/ningen/v3"
 	"github.com/ayn2op/tview"
 )
 
+// closeCodeAuthenticationFailed is the close code of the gateway for a token it rejects.
+const closeCodeAuthenticationFailed = 4004
+
 func openState(state *ningen.State) tview.Cmd {
 	return func() tview.Msg {
 		if err := state.Open(context.Background()); err != nil {
 			slog.Error("failed to open chat state", "err", err)
+
+			// A rejected token never works again, so ask for a new one.
+			var event *ws.CloseEvent
+			if errors.As(err, &event) && event.Code == closeCodeAuthenticationFailed {
+				return LogoutMsg{}
+			}
 		}
+
 		return nil
 	}
 }