Add modchannel core module

Signed-off-by: Knut Ahlers <knut@ahlers.me>

internal/actors/modchannel/actor.go

@@ -0,0 +1,70 @@
+package modchannel
+
+import (
+	"context"
+	"strings"
+
+	"github.com/Luzifer/twitch-bot/plugins"
+	"github.com/Luzifer/twitch-bot/twitch"
+	"github.com/go-irc/irc"
+	"github.com/pkg/errors"
+)
+
+var (
+	formatMessage plugins.MsgFormatter
+	twitchClient  *twitch.Client
+)
+
+func Register(args plugins.RegistrationArguments) error {
+	formatMessage = args.FormatMessage
+	twitchClient = args.GetTwitchClient()
+
+	args.RegisterActor(func() plugins.Actor { return &actor{} })
+
+	return nil
+}
+
+type actor struct {
+	Channel     string  `json:"channel" yaml:"channel"`
+	UpdateGame  *string `json:"update_game" yaml:"update_game"`
+	UpdateTitle *string `json:"update_title" yaml:"update_title"`
+}
+
+func (a actor) Execute(c *irc.Client, m *irc.Message, r *plugins.Rule, eventData plugins.FieldCollection) (preventCooldown bool, err error) {
+	if a.UpdateGame == nil && a.UpdateTitle == nil {
+		return false, nil
+	}
+
+	var game, title *string
+
+	channel, err := formatMessage(a.Channel, m, r, eventData)
+	if err != nil {
+		return false, errors.Wrap(err, "parsing channel")
+	}
+
+	if a.UpdateGame != nil {
+		parsedGame, err := formatMessage(*a.UpdateGame, m, r, eventData)
+		if err != nil {
+			return false, errors.Wrap(err, "parsing game")
+		}
+
+		game = &parsedGame
+	}
+
+	if a.UpdateTitle != nil {
+		parsedTitle, err := formatMessage(*a.UpdateTitle, m, r, eventData)
+		if err != nil {
+			return false, errors.Wrap(err, "parsing title")
+		}
+
+		title = &parsedTitle
+	}
+
+	return false, errors.Wrap(
+		twitchClient.ModifyChannelInformation(context.Background(), strings.TrimLeft(channel, "#"), game, title),
+		"updating channel info",
+	)
+}
+
+func (a actor) IsAsync() bool { return false }
+func (a actor) Name() string  { return "modchannel" }

wiki/Home.md

@@ -74,6 +74,11 @@ rules: # See below for examples
     # Issue a timeout on the user who wrote the chat-line
     - timeout: 1s # Duration value: 1s / 1m / 1h
 
+    # Update channel information (one of `update_game` and `update_title` must be defined)
+    - channel: '{{ .channel }}'         # String, applies templating
+      update_game: 'Just Chatting'      # String, optional, set game to given category
+      update_title: 'My special title'  # String, optional, set title to given title
+
     # Set a variable to value defined for later usage
     - variable: myvar       # String, name of the variable to set (applies templating)
       clear: false          # Boolean, clear the variable