Link WhatsApp with a pairing code

[onechat] / daemon.go

diff --git a/daemon.go b/daemon.go
index 3cef419bed9821e984274cf8e8c168b3a12a471b..41b3ab66a419000e2f4247cd39a9dcfc4999855f 100644 (file)
--- a/daemon.go
+++ b/daemon.go
@@ -27,8 +27,9 @@ const (
 
 // daemon runs "onechat daemon": it owns the root agent and its files and serves
 // the clients on the Unix socket in the data directory until ctx ends. When
-// telegram.json exists, it also runs the Telegram bot. It holds the lock of the
-// token file, so it is the only process that refreshes the tokens.
+// telegram.json exists, it also runs the Telegram bot. It also keeps a linked
+// WhatsApp device connected. It holds the lock of the token file, so it is the
+// only process that refreshes the tokens and opens the WhatsApp session.
 func daemon(ctx context.Context, out io.Writer) (err error) {
        dir, err := dataDir()
        if err != nil {
@@ -62,6 +63,15 @@ func daemon(ctx context.Context, out io.Writer) (err error) {
                err = errors.Join(err, tokens.Close())
        }()
 
+       whatsapp, err := openWhatsApp(ctx, dir, time.Now, log.New(out, "whatsapp: ", log.LstdFlags), whatsappNewClient)
+       if err != nil {
+               return err
+       }
+
+       defer func() {
+               err = errors.Join(err, whatsapp.Close())
+       }()
+
        address, auth, err := modelEndpoint(config, dir)
        if err != nil {
                return err
@@ -106,13 +116,16 @@ func daemon(ctx context.Context, out io.Writer) (err error) {
                }
        }
 
-       return daemonServe(ctx, listener, telegram, func(notify func(Event)) (*TurnLoop, error) {
+       return daemonServe(ctx, listener, telegram, whatsapp, func(notify func(Event)) (*TurnLoop, error) {
                return newTurnLoop(agent, memory, subagents, client, time.Now, notify)
        })
 }
 
-// DaemonHub holds the connected clients and sends each event to all of them.
+// DaemonHub holds the connected clients and sends each event to all of them. It
+// runs the WhatsApp commands of the clients on whatsapp.
 type DaemonHub struct {
+       whatsapp *WhatsApp
+
        mutex   sync.Mutex
        clients map[*DaemonClient]bool
        workers sync.WaitGroup
@@ -178,7 +191,12 @@ func (h *DaemonHub) read(ctx context.Context, client *DaemonClient, l *TurnLoop)
                var request SocketRequest
                err := json.Unmarshal(scanner.Bytes(), &request)
                if err == nil {
-                       err = daemonRunRequest(l, request)
+                       err = daemonRunRequest(l, h.whatsapp, request, func(text string) {
+                               h.Send(client, Event{
+                                       Kind: "notice",
+                                       Text: text,
+                               })
+                       })
                }
 
                if err != nil {
@@ -287,14 +305,16 @@ func daemonListenSocket(path string) (net.Listener, error) {
 }
 
 // daemonServe runs the loop that start makes and serves the clients of listener
-// until ctx ends or the loop fails. It closes listener. When bot is not nil, it
-// runs the bot too, and a failure of the bot stops the agent.
-func daemonServe(ctx context.Context, listener net.Listener, bot *TelegramBot, start func(notify func(Event)) (*TurnLoop, error)) error {
+// until ctx ends or the loop fails. It closes listener. It runs whatsapp, which
+// logs its notes in the loop and tells all clients its notices. When bot is not nil, it runs the bot too, and a failure of the bot
+// stops the agent.
+func daemonServe(ctx context.Context, listener net.Listener, bot *TelegramBot, whatsapp *WhatsApp, start func(notify func(Event)) (*TurnLoop, error)) error {
        ctx, cancel := context.WithCancel(ctx)
        defer cancel()
 
        hub := &DaemonHub{
-               clients: make(map[*DaemonClient]bool),
+               whatsapp: whatsapp,
+               clients:  make(map[*DaemonClient]bool),
        }
 
        notify := hub.Broadcast
@@ -311,20 +331,26 @@ func daemonServe(ctx context.Context, listener net.Listener, bot *TelegramBot, s
        }
 
        var workers sync.WaitGroup
-       workers.Add(1)
+       workers.Add(2)
        go func() {
                defer workers.Done()
 
                hub.Accept(ctx, listener, l)
        }()
 
+       go func() {
+               defer workers.Done()
+
+               whatsapp.Run(ctx, l, notify)
+       }()
+
        var botErr error
        if bot != nil {
                workers.Add(1)
                go func() {
                        defer workers.Done()
 
-                       botErr = bot.Run(ctx, l)
+                       botErr = bot.Run(ctx, l, whatsapp)
                        cancel()
                }()
        }
@@ -342,8 +368,9 @@ func daemonServe(ctx context.Context, listener net.Listener, bot *TelegramBot, s
        return errors.Join(err, botErr)
 }
 
-// daemonRunRequest runs one request of a client.
-func daemonRunRequest(l *TurnLoop, request SocketRequest) error {
+// daemonRunRequest runs one request of a client. The answers of a WhatsApp
+// command go to answer.
+func daemonRunRequest(l *TurnLoop, whatsapp *WhatsApp, request SocketRequest, answer func(text string)) error {
        switch request.Type {
        case "send":
                if request.Text == "" {
@@ -359,6 +386,17 @@ func daemonRunRequest(l *TurnLoop, request SocketRequest) error {
                }
 
                return nil
+       case "whatsapp":
+               whatsapp.Command(request.Text, answer)
+
+               return nil
+       case "stop":
+               found, err := l.StopSubagent(request.Text)
+               if err == nil && !found {
+                       err = fmt.Errorf("no subagent %s runs", request.Text)
+               }
+
+               return err
        default:
                return fmt.Errorf("unknown request %q", request.Type)
        }