package main

import (
	"context"
	"encoding/json"
	"fmt"
	"os"
	"sort"
	"strings"
	"sync"
	"time"

	"github.com/godbus/dbus/v5"
	"github.com/godbus/dbus/v5/introspect"

	"ollie/agent"
	"ollie/backend"
	"olliesrv/fs"
	"olliesrv/session"
)

const (
	busName  = "org.ollie.SessionManager"
	busPath  = "/org/ollie/SessionManager"
	busIface = "org.ollie.SessionManager"
)

// DBusAdapter exposes sessions over D-Bus.
type DBusAdapter struct {
	conn *dbus.Conn
	tree *fs.Tree

	mu       sync.RWMutex
	watchers map[string]context.CancelFunc // sessionID -> cancel for state watcher
}

// startDBus connects to the session bus, claims the well-known name, and
// exports the adapter. Returns nil (no-op) if the bus is unavailable.
func startDBus(tree *fs.Tree) *DBusAdapter {
	conn, err := dbus.ConnectSessionBus()
	if err != nil {
		fmt.Fprintf(os.Stderr, "dbus: session bus unavailable: %v\n", err)
		return nil
	}

	reply, err := conn.RequestName(busName, dbus.NameFlagDoNotQueue)
	if err != nil || reply != dbus.RequestNameReplyPrimaryOwner {
		fmt.Fprintf(os.Stderr, "dbus: cannot claim %s (ollied already running?)\n", busName)
		conn.Close()
		return nil
	}

	a := &DBusAdapter{
		conn:     conn,
		tree:     tree,
		watchers: make(map[string]context.CancelFunc),
	}

	conn.Export(a, busPath, busIface)
	conn.Export(introspect.Introspectable(introspectXML), busPath, "org.freedesktop.DBus.Introspectable")

	fmt.Printf("dbus: exported %s\n", busName)
	return a
}

// WatchExisting starts watchers for all sessions that already exist.
// Called after the adapter is initialized to cover sessions restored at startup.
func (a *DBusAdapter) WatchExisting() {
	if a == nil {
		return
	}
	for _, sess := range session.All(a.tree) {
		id := sess.RunnableID()
		a.startWatcher(id, sess)
		// Emit SessionCreated so GUI clients that connected before restore
		// (via serviceRegistered) learn about pre-existing sessions.
		a.conn.Emit(busPath, busIface+".SessionCreated", id)
	}
}

func (a *DBusAdapter) Close() {
	if a == nil || a.conn == nil {
		return
	}
	a.mu.Lock()
	for _, cancel := range a.watchers {
		cancel()
	}
	a.mu.Unlock()
	a.conn.Close()
}

// --- Lifecycle callbacks ---

func (a *DBusAdapter) OnSessionCreated(id string, sess *session.Session) {
	if a == nil {
		return
	}
	a.startWatcher(id, sess)
	go a.conn.Emit(busPath, busIface+".SessionCreated", id)
}

func (a *DBusAdapter) OnSessionKilled(id string) {
	if a == nil {
		return
	}
	a.stopWatcher(id)
	go a.conn.Emit(busPath, busIface+".SessionKilled", id)
}

func (a *DBusAdapter) OnSessionRenamed(oldID, newID string) {
	if a == nil {
		return
	}
	a.stopWatcher(oldID)
	// The session object is the same, just re-lookup
	sess := session.Lookup(a.tree, newID)
	if sess != nil {
		a.startWatcher(newID, sess)
	}
	go a.conn.Emit(busPath, busIface+".SessionRenamed", oldID, newID)
}

// startWatcher launches goroutines for StateChanged and ChatUpdated signals.
func (a *DBusAdapter) startWatcher(id string, sess *session.Session) {
	ctx, cancel := context.WithCancel(context.Background())
	a.mu.Lock()
	a.watchers[id] = cancel
	a.mu.Unlock()

	// State watcher
	go func() {
		current := sess.Core.Agent().State()
		for {
			next, ok := sess.Core.WaitChange(ctx, agent.WatchState, current)
			if !ok {
				return
			}
			current = next
			a.conn.Emit(busPath, busIface+".StateChanged", id, current)
			if current == "idle" {
				a.sendNotification("Ollie", "Session "+id+" finished")
			}
		}
	}()

	// Agent watcher — emits ConfigChanged when the agent name changes
	go func() {
		current := sess.Core.Agent().Name()
		for {
			next, ok := sess.Core.WaitChange(ctx, "agent", current)
			if !ok {
				return
			}
			current = next
			a.conn.Emit(busPath, busIface+".ConfigChanged", id, "agent", current)
		}
	}()

	// Chat watcher (polls log version)
	go func() {
		var lastLen int
		var lastVers uint32
		for {
			select {
			case <-ctx.Done():
				return
			case <-time.After(150 * time.Millisecond):
			}
			l, v := sess.LogInfo()
			if v == lastVers {
				continue
			}
			if l > lastLen {
				// Read the new chunk
				sess.Mu().RLock()
				chunk := string(sess.Log()[lastLen:])
				sess.Mu().RUnlock()
				a.conn.Emit(busPath, busIface+".ChatUpdated", id, int64(lastLen), chunk)
			}
			lastLen = l
			lastVers = v
		}
	}()

	// Detached process exit watcher
	go func() {
		exitedPIDs := make(map[int]bool) // already-reported PIDs
		for {
			select {
			case <-ctx.Done():
				return
			case <-time.After(1 * time.Second):
			}
			infos := sess.Core.Agent().ListDetached()
			// Clean up stale entries from exitedPIDs
			activePIDs := make(map[int]bool, len(infos))
			for _, info := range infos {
				activePIDs[info.PID] = true
			}
			for pid := range exitedPIDs {
				if !activePIDs[pid] {
					delete(exitedPIDs, pid)
				}
			}
			for _, info := range infos {
				if info.Exited && !exitedPIDs[info.PID] {
					exitedPIDs[info.PID] = true
					a.conn.Emit(busPath, busIface+".ProcessExited", id, int32(info.PID), int32(info.ExitCode))
				}
			}
		}
	}()
}

func (a *DBusAdapter) stopWatcher(id string) {
	a.mu.Lock()
	if cancel, ok := a.watchers[id]; ok {
		cancel()
		delete(a.watchers, id)
	}
	a.mu.Unlock()
}

// --- D-Bus exported methods ---

func (a *DBusAdapter) CreateSession(cwd, backendName, modelName, agentName, systemPrompt, remote string) (string, *dbus.Error) {
	var args []string
	if cwd != "" {
		args = append(args, "cwd="+cwd)
	}
	if backendName != "" {
		args = append(args, "backend="+backendName)
	}
	if modelName != "" {
		args = append(args, "model="+modelName)
	}
	if agentName != "" {
		args = append(args, "agent="+agentName)
	}
	if systemPrompt != "" {
		args = append(args, "system_prompt="+systemPrompt)
	}
	if remote != "" {
		args = append(args, "remote="+remote)
	}
	if cwd == "" {
		dir, _ := os.Getwd()
		args = append(args, "cwd="+dir)
	}
	id, err := session.CreateFromRoot(a.tree, args)
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return id, nil
}

func (a *DBusAdapter) ListSessions() ([]string, *dbus.Error) {
	var result []string
	for _, sess := range session.All(a.tree) {
		id := sess.RunnableID()
		result = append(result, fmt.Sprintf("%s\t%s\t%s\t%s",
			id, sess.Core.Agent().State(), sess.Core.Agent().ModelName(), sess.Core.Agent().Name()))
	}
	return result, nil
}

func (a *DBusAdapter) KillSession(sessionID string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	session.KillFromRoot(a.tree, sessionID)
	return true, nil
}

func (a *DBusAdapter) RenameSession(sessionID, newName string) (bool, *dbus.Error) {
	if err := session.RenameFromRoot(a.tree, sessionID, newName); err != nil {
		return false, dbus.MakeFailedError(err)
	}
	return true, nil
}

func (a *DBusAdapter) Submit(sessionID, prompt string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	go sess.Core.Agent().Submit(sess.SessionCtx, prompt)
	return true, nil
}

func (a *DBusAdapter) React(sessionID, emoji string) (bool, *dbus.Error) {
	return a.ReactTo(sessionID, "", emoji)
}

func (a *DBusAdapter) ReactTo(sessionID, responseID, emoji string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	if err := sess.Core.Agent().React(responseID, emoji); err != nil {
		return false, dbus.MakeFailedError(err)
	}
	return true, nil
}

func (a *DBusAdapter) Interrupt(sessionID string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	sess.Core.Agent().Interrupt(agent.ErrInterrupted)
	return true, nil
}

func (a *DBusAdapter) GetState(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	return sess.Core.Agent().State(), nil
}

func (a *DBusAdapter) GetChat(sessionID string, offset int64) (string, int64, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", offset, nil
	}
	sess.Mu().RLock()
	log := sess.Log()
	if offset < 0 {
		offset = 0
	}
	if offset > int64(len(log)) {
		offset = int64(len(log))
	}
	text := string(log[offset:])
	newOffset := int64(len(log))
	sess.Mu().RUnlock()
	return text, newOffset, nil
}

func (a *DBusAdapter) GetUsage(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	return sess.Core.Agent().UsageStr(), nil
}

func (a *DBusAdapter) GetCost(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	return sess.Core.Agent().CostStr(), nil
}

func (a *DBusAdapter) GetConfig(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	var sb strings.Builder
	fmt.Fprintf(&sb, "model=%s\n", sess.Core.Agent().ModelName())
	fmt.Fprintf(&sb, "backend=%s\n", sess.Core.Agent().BackendName())
	fmt.Fprintf(&sb, "agent=%s\n", sess.Core.Agent().Name())
	fmt.Fprintf(&sb, "cwd=%s\n", sess.Core.CWD())
	fmt.Fprintf(&sb, "state=%s\n", sess.Core.Agent().State())
	return sb.String(), nil
}

func (a *DBusAdapter) SetConfig(sessionID, key, value string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	switch key {
	case "model":
		sess.Core.Agent().Submit(sess.SessionCtx, "/model "+value)
	case "cwd":
		if err := sess.Core.SetCWD(value); err != nil {
			return false, nil
		}
	default:
		return false, nil
	}
	return true, nil
}

func (a *DBusAdapter) GetReactions(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "{}", nil
	}
	data, err := json.Marshal(sess.Core.Agent().Reactions())
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return string(data), nil
}

func (a *DBusAdapter) GetContext(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	msgs := sess.Core.Agent().Context()
	var sb strings.Builder
	enc := json.NewEncoder(&sb)
	enc.SetEscapeHTML(false)
	for _, msg := range msgs {
		enc.Encode(msg)
	}
	return sb.String(), nil
}

func (a *DBusAdapter) ListBackends() ([]string, *dbus.Error) {
	return backend.Backends(), nil
}

func (a *DBusAdapter) ListModelsByBackend(backendName string) ([]string, *dbus.Error) {
	be, err := backend.NewWithName(backendName)
	if err != nil {
		return nil, dbus.MakeFailedError(err)
	}
	models := be.Models(context.Background())
	sort.Strings(models)
	return models, nil
}

func (a *DBusAdapter) ListModels(sessionID string) ([]string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return nil, nil
	}
	raw := sess.CachedListModels()
	models := strings.Split(strings.TrimSpace(raw), "\n")
	if len(models) == 1 && models[0] == "" {
		return nil, nil
	}
	sort.Strings(models)
	return models, nil
}

func (a *DBusAdapter) ListAgents() ([]string, *dbus.Error) {
	var result []string
	for _, dir := range agent.AgentsDirs() {
		entries, err := os.ReadDir(dir)
		if err != nil {
			continue
		}
		for _, e := range entries {
			name := e.Name()
			if strings.HasSuffix(name, ".json") {
				result = append(result, strings.TrimSuffix(name, ".json"))
			}
		}
	}
	return result, nil
}


// --- Detached processes ---

func (a *DBusAdapter) DetachProcess(sessionID string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, dbus.MakeFailedError(fmt.Errorf("session not found: %s", sessionID))
	}
	if !sess.Core.Agent().Detach() {
		return false, dbus.MakeFailedError(fmt.Errorf("no running process to detach"))
	}
	a.conn.Emit(busPath, busIface+".ProcessDetached", sessionID)
	return true, nil
}

func (a *DBusAdapter) ListDetached(sessionID string) ([]string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return nil, dbus.MakeFailedError(fmt.Errorf("session not found: %s", sessionID))
	}
	infos := sess.Core.Agent().ListDetached()
	out := make([]string, len(infos))
	for i, info := range infos {
		status := "running"
		if info.Exited {
			status = fmt.Sprintf("exited(%d)", info.ExitCode)
		}
		out[i] = fmt.Sprintf("%d\t%s\t%d\t%s", info.PID, info.Command, info.Started, status)
	}
	return out, nil
}

func (a *DBusAdapter) SignalDetached(sessionID string, pid int32, signal string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, dbus.MakeFailedError(fmt.Errorf("session not found: %s", sessionID))
	}
	var sig int
	switch strings.ToUpper(signal) {
	case "TERM", "SIGTERM", "15":
		sig = 15
	case "KILL", "SIGKILL", "9":
		sig = 9
	default:
		return false, dbus.MakeFailedError(fmt.Errorf("unsupported signal: %s", signal))
	}
	if err := sess.Core.Agent().SignalDetached(int(pid), sig); err != nil {
		return false, dbus.MakeFailedError(err)
	}
	return true, nil
}

func (a *DBusAdapter) GetDetachedOutput(sessionID string, pid int32) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", dbus.MakeFailedError(fmt.Errorf("session not found: %s", sessionID))
	}
	output, err := sess.Core.Agent().GetDetachedOutput(int(pid))
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return output, nil
}

func (a *DBusAdapter) DismissDetached(sessionID string, pid int32) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, dbus.MakeFailedError(fmt.Errorf("session not found: %s", sessionID))
	}
	return sess.Core.Agent().DismissDetached(int(pid)), nil
}

// --- Generate / Route ---

func (a *DBusAdapter) Generate(prompt, system, backendName, model string) (string, *dbus.Error) {
	result, err := backend.Generate(context.Background(), backend.GenerateRequest{
		Prompt:  prompt,
		System:  system,
		Backend: backendName,
		Model:   model,
	})
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return result, nil
}

func (a *DBusAdapter) Route(task, backendName string) (string, *dbus.Error) {
	result, err := backend.Route(context.Background(), backend.RouteRequest{
		Task:    task,
		Backend: backendName,
	})
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return fmt.Sprintf("backend=%s model=%s", result.Backend, result.Model), nil
}

func (a *DBusAdapter) Complete(cwd, filePath, prefix, suffix, extraContext string) (string, *dbus.Error) {
	result, err := agent.Complete(cwd, filePath, prefix, suffix, extraContext)
	if err != nil {
		return "", dbus.MakeFailedError(err)
	}
	return result, nil
}

func (a *DBusAdapter) GetEnv(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	var sb strings.Builder
	fmt.Fprintf(&sb, "OLLIE_SESSION_ID=%s\n", sess.RunnableID())
	for _, e := range os.Environ() {
		if strings.HasPrefix(e, "OLLIE_") && !strings.HasPrefix(e, "OLLIE_SESSION_ID=") {
			sb.WriteString(e)
			sb.WriteByte('\n')
		}
	}
	return sb.String(), nil
}

func (a *DBusAdapter) GetPlan(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	sess.Mu().RLock()
	plan := string(sess.Plan())
	sess.Mu().RUnlock()
	return plan, nil
}

func (a *DBusAdapter) SetPlan(sessionID, plan string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	sess.Mu().Lock()
	sess.SetPlan([]byte(plan))
	sess.Mu().Unlock()
	return true, nil
}

func (a *DBusAdapter) GetSystemPrompt(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	return sess.Core.Agent().SystemPrompt(), nil
}

func (a *DBusAdapter) GetContextSize(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	return sess.Core.Agent().CtxSz(), nil
}

func (a *DBusAdapter) GetPreviousPrompt(sessionID string) (string, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return "", nil
	}
	sess.Mu().RLock()
	p := string(sess.PrevPrompt())
	sess.Mu().RUnlock()
	return p, nil
}

func (a *DBusAdapter) Compact(sessionID string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	sess.Core.Agent().Submit(sess.SessionCtx, "/compact")
	return true, nil
}

func (a *DBusAdapter) ClearContext(sessionID string) (bool, *dbus.Error) {
	sess := session.Lookup(a.tree, sessionID)
	if sess == nil {
		return false, nil
	}
	sess.Core.Agent().Submit(sess.SessionCtx, "/clear")
	return true, nil
}

// --- Notifications ---

func (a *DBusAdapter) sendNotification(title, body string) {
	go func() {
		obj := a.conn.Object("org.freedesktop.Notifications", "/org/freedesktop/Notifications")
		obj.Call("org.freedesktop.Notifications.Notify", 0,
			"olliesrv", uint32(0), "system-run", title, body,
			[]string{}, map[string]dbus.Variant{}, int32(5000))
	}()
}

// Introspection XML.
var introspectXML = `<node>
  <interface name="` + busIface + `">
    <method name="CreateSession">
      <arg direction="in" type="s" name="cwd"/>
      <arg direction="in" type="s" name="backend"/>
      <arg direction="in" type="s" name="model"/>
      <arg direction="in" type="s" name="agent"/>
      <arg direction="in" type="s" name="systemPrompt"/>
      <arg direction="in" type="s" name="remote"/>
      <arg direction="out" type="s"/>
    </method>
    <method name="ListSessions"><arg direction="out" type="as"/></method>
    <method name="KillSession"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="b"/></method>
    <method name="RenameSession"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="newName"/><arg direction="out" type="b"/></method>
    <method name="Submit"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="prompt"/><arg direction="out" type="b"/></method>
    <method name="React"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="emoji"/><arg direction="out" type="b"/></method>
    <method name="ReactTo"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="responseID"/><arg direction="in" type="s" name="emoji"/><arg direction="out" type="b"/></method>
    <method name="Interrupt"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="b"/></method>
    <method name="GetState"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetChat"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="x" name="offset"/><arg direction="out" type="s"/><arg direction="out" type="x"/></method>
    <method name="GetUsage"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetCost"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetConfig"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="SetConfig"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="key"/><arg direction="in" type="s" name="value"/><arg direction="out" type="b"/></method>
    <method name="GetContext"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetReactions"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="ListBackends"><arg direction="out" type="as"/></method>
    <method name="ListModelsByBackend"><arg direction="in" type="s" name="backend"/><arg direction="out" type="as"/></method>
    <method name="ListModels"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="as"/></method>
    <method name="ListAgents"><arg direction="out" type="as"/></method>
    <method name="DetachProcess"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="b"/></method>
    <method name="ListDetached"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="as"/></method>
    <method name="SignalDetached"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="i" name="pid"/><arg direction="in" type="s" name="signal"/><arg direction="out" type="b"/></method>
    <method name="GetDetachedOutput"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="i" name="pid"/><arg direction="out" type="s"/></method>
    <method name="DismissDetached"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="i" name="pid"/><arg direction="out" type="b"/></method>
    <method name="Generate"><arg direction="in" type="s" name="prompt"/><arg direction="in" type="s" name="system"/><arg direction="in" type="s" name="backend"/><arg direction="in" type="s" name="model"/><arg direction="out" type="s"/></method>
    <method name="Route"><arg direction="in" type="s" name="task"/><arg direction="in" type="s" name="backend"/><arg direction="out" type="s"/></method>
    <method name="Complete"><arg direction="in" type="s" name="cwd"/><arg direction="in" type="s" name="file"/><arg direction="in" type="s" name="prefix"/><arg direction="in" type="s" name="suffix"/><arg direction="in" type="s" name="context"/><arg direction="out" type="s"/></method>
    <method name="GetEnv"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetPlan"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="SetPlan"><arg direction="in" type="s" name="sessionID"/><arg direction="in" type="s" name="plan"/><arg direction="out" type="b"/></method>
    <method name="GetSystemPrompt"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetContextSize"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="GetPreviousPrompt"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="s"/></method>
    <method name="Compact"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="b"/></method>
    <method name="ClearContext"><arg direction="in" type="s" name="sessionID"/><arg direction="out" type="b"/></method>
    <signal name="SessionCreated"><arg type="s" name="sessionID"/></signal>
    <signal name="SessionKilled"><arg type="s" name="sessionID"/></signal>
    <signal name="SessionRenamed"><arg type="s" name="oldID"/><arg type="s" name="newID"/></signal>
    <signal name="StateChanged"><arg type="s" name="sessionID"/><arg type="s" name="state"/></signal>
    <signal name="ChatUpdated"><arg type="s" name="sessionID"/><arg type="x" name="offset"/><arg type="s" name="text"/></signal>
    <signal name="ProcessDetached"><arg type="s" name="sessionID"/></signal>
    <signal name="ProcessExited"><arg type="s" name="sessionID"/><arg type="i" name="pid"/><arg type="i" name="exitCode"/></signal>
    <signal name="ConfigChanged"><arg type="s" name="sessionID"/><arg type="s" name="key"/><arg type="s" name="value"/></signal>
  </interface>
</node>`