Small fixes and a bit of refactoring.

cmd/test/main.go

@@ -112,6 +112,14 @@ WithInitFunc(func(c *tg.Context) {
 						tg.NewButton("Send location").Go("/send-location"),
 					).Reply(),
 			),
+
+			tg.Func(func(c *tg.Context){
+				for u := range c.Input() {
+					if u.EditedMessage != nil {
+						c.Sendf2("The new message is `%s`", u.EditedMessage.Text)
+					}
+				}
+			}),
 		}
 	}),
 
@@ -208,7 +216,7 @@ WithInitFunc(func(c *tg.Context) {
 
 			return tg.UI{
 				kbd,
-				tg.NewMessage("").Reply(
+				tg.NewMessage("Use the reply keyboard to get back").Reply(
 					backKeyboard.Reply(),
 				),
 			}
@@ -242,7 +250,9 @@ WithInitFunc(func(c *tg.Context) {
 		}),
 	),
 )).WithRoot(tg.NewCommandCompo().
-WithPreStart(tg.Func(func(c *tg.Context){
+WithUsage(tg.Func(func(c *tg.Context){
+	c.Sendf("There is no such command %q", c.Message.Command())
+})).WithPreStart(tg.Func(func(c *tg.Context){
 	c.Sendf("Please, use /start ")
 })).WithCommands(
 	tg.NewCommand("info").

tg/beh.go

@@ -77,50 +77,3 @@ func (beh *Behaviour) GetScreen(pth Path) *Screen {
 	return screen
 }
 
-// The type describes behaviour for the bot in group chats.
-type GroupBehaviour struct {
-	Init GroupAction
-	// List of commands
-	Commands GroupCommandMap
-}
-
-// Returns new empty group behaviour object.
-func NewGroupBehaviour() *GroupBehaviour {
-	return &GroupBehaviour{
-		Commands: make(GroupCommandMap),
-	}
-}
-
-// Sets an Action for initialization on each group connected to the
-// group bot.
-func (b *GroupBehaviour) WithInitAction(a GroupAction) *GroupBehaviour {
-	b.Init = a
-	return b
-}
-
-// The method reciveies a function to be called on initialization of the
-// bot group bot.
-func (b *GroupBehaviour) InitFunc(fn GroupActionFunc) *GroupBehaviour {
-	return b.WithInitAction(fn)
-}
-
-// The method sets group commands.
-func (b *GroupBehaviour) WithCommands(
-	cmds ...*GroupCommand,
-) *GroupBehaviour {
-	for _, cmd := range cmds {
-		if cmd.Name == "" {
-			panic("empty command name")
-		}
-		_, ok := b.Commands[cmd.Name]
-		if ok {
-			panic("duplicate command definition")
-		}
-		b.Commands[cmd.Name] = cmd
-	}
-	return b
-}
-
-// The type describes behaviour for the bot in channels.
-type ChannelBehaviour struct {
-}

tg/bot.go

@@ -22,12 +22,12 @@ type Bot struct {
 	// Private bot behaviour.
 	behaviour *Behaviour
 	// Group bot behaviour.
-	groupBehaviour *GroupBehaviour
+	//groupBehaviour *GroupBehaviour
 	// Bot behaviour in channels.
-	channelBehaviour *ChannelBehaviour
+	//channelBehaviour *ChannelBehaviour
 	contexts map[SessionId] *context
 	sessions         SessionMap
-	groupSessions    GroupSessionMap
+	//groupSessions    GroupSessionMap
 }
 
 // Return the new bot with empty sessions and behaviour.
@@ -65,28 +65,8 @@ func (bot *Bot) Send(
 	return c.Bot.Send(c.Session.Id, v)
 }
 
-/*func (bot *Bot) Render(
+// Get session by its ID. Can be used for any scope
-	sid SessionId, r Renderable,
+// including private, group and channel.
-) (MessageMap, error) {
-	configs := r.Render(sid, bot)
-	if configs == nil {
-		return nil, MapCollisionErr
-	}
-	messages := make(MessageMap)
-	for _, config := range configs {
-		_, collision := messages[config.Name]
-		if collision {
-			return messages, MapCollisionErr
-		}
-		msg, err := bot.Api.Send(config.ToApi())
-		if err != nil {
-			return messages, err
-		}
-		messages[config.Name] = &msg
-	}
-	return messages, nil
-}*/
-
 func (bot *Bot) GetSession(
 	sid SessionId,
 ) (*Session, bool) {
@@ -94,13 +74,6 @@ func (bot *Bot) GetSession(
 	return session, ok
 }
 
-func (bot *Bot) GetGroupSession(
-	sid SessionId,
-) (*GroupSession, bool) {
-	session, ok := bot.groupSessions[sid]
-	return session, ok
-}
-
 func (b *Bot) WithBehaviour(beh *Behaviour) *Bot {
 	b.behaviour = beh
 	b.sessions = make(SessionMap)
@@ -112,7 +85,7 @@ func (b *Bot) WithSessions(sessions SessionMap) *Bot {
 	return b
 }
 
-func (b *Bot) WithGroupBehaviour(beh *GroupBehaviour) *Bot {
+/*func (b *Bot) WithGroupBehaviour(beh *GroupBehaviour) *Bot {
 	b.groupBehaviour = beh
 	b.groupSessions = make(GroupSessionMap)
 	return b
@@ -121,12 +94,18 @@ func (b *Bot) WithGroupBehaviour(beh *GroupBehaviour) *Bot {
 func (b *Bot) WithGroupSessions(sessions GroupSessionMap) *Bot {
 	b.groupSessions = sessions
 	return b
+}*/
+
+func (bot *Bot) DeleteCommands() {
+	//tgbotapi.NewBotCommandScopeAllPrivateChats(),
+	cfg := tgbotapi.NewDeleteMyCommands()
+	bot.Api.Request(cfg)
 }
 
 // Setting the command on the user side.
 func (bot *Bot) SetCommands(
 	scope tgbotapi.BotCommandScope,
-	cmdMap map[CommandName] BotCommander,
+	cmdMap CommandMap,
 ) {
 	// First the private commands.
 	names := []string{}
@@ -135,7 +114,7 @@ func (bot *Bot) SetCommands(
 	}
 	sort.Strings([]string(names))
 
-	cmds := []BotCommander{}
+	cmds := []*Command{}
 	for _, name := range names {
 		cmds = append(
 			cmds,
@@ -159,8 +138,7 @@ func (bot *Bot) SetCommands(
 
 // Run the bot with the Behaviour.
 func (bot *Bot) Run() error {
-	if bot.behaviour == nil &&
+	if bot.behaviour == nil {
-		bot.groupBehaviour == nil {
 		return errors.New("no behaviour defined")
 	}
 
@@ -169,7 +147,7 @@ func (bot *Bot) Run() error {
 	}
 
 	uc := tgbotapi.NewUpdate(0)
-	uc.Timeout = 60
+	uc.Timeout = 10
 	updates := bot.Api.GetUpdatesChan(uc)
 	handles := make(map[string] chan *Update)
 
@@ -179,7 +157,7 @@ func (bot *Bot) Run() error {
 		go bot.handlePrivate(chn)
 	}
 
-	if bot.groupBehaviour != nil {
+	/*if bot.groupBehaviour != nil {
 		commanders := make(map[CommandName] BotCommander)
 		for k, v := range bot.groupBehaviour.Commands {
 			commanders[k] = v
@@ -192,7 +170,7 @@ func (bot *Bot) Run() error {
 		handles["group"] = chn
 		handles["supergroup"] = chn
 		go bot.handleGroup(chn)
-	}
+	}*/
 
 	me, _ := bot.Api.GetMe()
 	bot.Me = &me
@@ -249,7 +227,7 @@ func (bot *Bot) handlePrivate(updates chan *Update) {
 		}
 	}
 }
-
+/*
 func (bot *Bot) handleGroup(updates chan *Update) {
 	var sid SessionId
 	chans := make(map[SessionId]chan *Update)
@@ -273,3 +251,4 @@ func (bot *Bot) handleGroup(updates chan *Update) {
 		chn <- u
 	}
 }
+*/

tg/command.go

@@ -6,14 +6,18 @@ import (
 	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
 
-type BotCommander interface {
+type CommandType uint8
-	ToApi() tgbotapi.BotCommand
+const (
-}
+	PrivateCommandType CommandType = iota
-type Message = tgbotapi.Message
+	GroupCommandType
+	ChannelCommandType
+)
+
 type CommandName string
 
 type Command struct {
 	Name        CommandName
+	Type CommandType
 	Description string
 	Action      Action
 	Widget Widget
@@ -63,41 +67,6 @@ func (c *Command) Go(pth Path, args ...any) *Command {
 	})
 }
 
-type GroupCommand struct {
-	Name        CommandName
-	Description string
-	Action      GroupAction
-}
-type GroupCommandMap map[CommandName]*GroupCommand
-
-func NewGroupCommand(name CommandName) *GroupCommand {
-	return &GroupCommand{
-		Name: name,
-	}
-}
-
-func (cmd *GroupCommand) WithAction(a GroupAction) *GroupCommand {
-	cmd.Action = a
-	return cmd
-}
-
-func (cmd *GroupCommand) ActionFunc(fn GroupActionFunc) *GroupCommand {
-	return cmd.WithAction(fn)
-}
-
-
-func (cmd *GroupCommand) Desc(desc string) *GroupCommand {
-	cmd.Description = desc
-	return cmd
-}
-
-func (c *GroupCommand) ToApi() tgbotapi.BotCommand {
-	ret := tgbotapi.BotCommand{}
-	ret.Command = string(c.Name)
-	ret.Description = c.Description
-	return ret
-}
-
 // The type is used to recognize commands and execute
 // its actions and widgets .
 type CommandCompo struct {
@@ -165,13 +134,14 @@ func (widget *CommandCompo) Filter(
 
 // Implementing server.
 func (compo *CommandCompo) Serve(c *Context) {
-	commanders := make(map[CommandName] BotCommander)
+	/*commanders := make(map[CommandName] BotCommander)
 	for k, v := range compo.Commands {
 		commanders[k] = v
-	}
+	}*/
+	c.Bot.DeleteCommands()
 	c.Bot.SetCommands(
 		tgbotapi.NewBotCommandScopeAllPrivateChats(),
-		commanders,
+		compo.Commands,
 	)
 
 	var cmdUpdates *UpdateChan

tg/encoding.go

@@ -32,6 +32,6 @@ func DefineAction(typeName string, a Action) error {
 	return nil
 }
 
-func DefineGroupAction(typ string, a GroupAction) error {
+/*func DefineGroupAction(typ string, a GroupAction) error {
 	return nil
-}
+}*/

tg/group.go

@@ -1,94 +1,2 @@
 package tg
 
-import (
-	"fmt"
-
-	//tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
-)
-
-// Customized actions for the group behaviour.
-type GroupAction interface {
-	Act(*GroupContext)
-}
-
-// The handler function type.
-type GroupActionFunc func(*GroupContext)
-
-func (af GroupActionFunc) Act(a *GroupContext) {
-	af(a)
-}
-
-type GC = GroupContext
-
-func (c *GroupContext) Session() *GroupSession {
-	session, _ := c.Bot.GetGroupSession(
-		SessionId(c.SentFrom().ID),
-	)
-	return session
-}
-
-type GroupContext struct {
-	*groupContext
-	*Update
-}
-
-// Context for interaction inside groups.
-type groupContext struct {
-	Session *GroupSession
-	Bot     *Bot
-	updates chan *Update
-}
-
-func (c *groupContext) run(a GroupAction, u *Update) {
-	go a.Act(&GroupContext{
-		groupContext: c,
-		Update:       u,
-	})
-}
-
-func (c *groupContext) handleUpdateChan(updates chan *Update) {
-	var act GroupAction
-	beh := c.Bot.groupBehaviour
-	for u := range updates {
-		if u.Message != nil {
-			msg := u.Message
-			if msg.IsCommand() {
-				cmdName := CommandName(msg.Command())
-
-				// Skipping the commands sent not to us.
-				withAt := msg.CommandWithAt()
-				if len(cmdName) == len(withAt) {
-					continue
-				}
-
-				atName := withAt[len(cmdName)+1:]
-				if c.Bot.Me.UserName != atName {
-					continue
-				}
-				cmd, ok := beh.Commands[cmdName]
-				if !ok {
-					// Some lack of command handling
-					continue
-				}
-				act = cmd.Action
-			}
-		}
-		if act != nil {
-			c.run(act, u)
-		}
-	}
-}
-
-func (c *groupContext) Sendf(
-	format string,
-	v ...any,
-) (*Message, error) {
-	return c.Send(NewMessage(
-		fmt.Sprintf(format, v...),
-	))
-}
-
-// Sends into the chat specified values converted to strings.
-func (c *groupContext) Send(v Sendable) (*Message, error) {
-	return c.Bot.Send(c.Session.Id, v)
-}

tg/message.go

@@ -3,6 +3,7 @@ package tg
 import (
 	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
 )
+type Message = tgbotapi.Message
 
 // Simple text message type.
 type MessageCompo struct {

tg/poll.go

@@ -0,0 +1,8 @@
+package tg
+
+type Poll struct {
+}
+
+type PollCompo struct {
+}
+