From 359d158c699ef6d2d75f599376d1f460aff15a78 Mon Sep 17 00:00:00 2001
From: Hubert Hirtz <hubert@hirtz.pm>
Date: Mon, 13 Sep 2021 15:15:30 +0200
Subject: Show mode changes

---
 app.go         | 12 ++++++++++++
 irc/events.go  |  5 +++++
 irc/session.go |  8 ++++++++
 3 files changed, 25 insertions(+)

diff --git a/app.go b/app.go
index 8dc3ac6..ffc098b 100644
--- a/app.go
+++ b/app.go
@@ -648,6 +648,18 @@ func (app *App) handleIRCEvent(ev interface{}) {
 			HeadColor: tcell.ColorGray,
 			Body:      body.StyledString(),
 		})
+	case irc.ModeChangeEvent:
+		var body ui.StyledStringBuilder
+		body.Grow(len(ev.Mode) + 13)
+		body.SetStyle(tcell.StyleDefault.Foreground(tcell.ColorGray))
+		body.WriteString("Mode change: ")
+		body.WriteString(ev.Mode)
+		app.win.AddLine(ev.Channel, ui.NotifyUnread, ui.Line{
+			At:        msg.TimeOrNow(),
+			Head:      "--",
+			HeadColor: tcell.ColorGray,
+			Body:      body.StyledString(),
+		})
 	case irc.MessageEvent:
 		buffer, line, hlNotification := app.formatMessage(ev)
 		var notify ui.NotifyType
diff --git a/irc/events.go b/irc/events.go
index eeac8fb..ba6e38d 100644
--- a/irc/events.go
+++ b/irc/events.go
@@ -51,6 +51,11 @@ type TopicChangeEvent struct {
 	Topic   string
 }
 
+type ModeChangeEvent struct {
+	Channel string
+	Mode    string
+}
+
 type MessageEvent struct {
 	User            string
 	Target          string
diff --git a/irc/session.go b/irc/session.go
index f799f38..692daf4 100644
--- a/irc/session.go
+++ b/irc/session.go
@@ -741,6 +741,14 @@ func (s *Session) handleRegistered(msg Message) Event {
 				Topic:   c.Topic,
 			}
 		}
+	case "MODE":
+		channelCf := s.Casemap(msg.Params[0])
+		if c, ok := s.channels[channelCf]; ok {
+			return ModeChangeEvent{
+				Channel: c.Name,
+				Mode: strings.Join(msg.Params[1:], " "),
+			}
+		}
 	case "PRIVMSG", "NOTICE":
 		targetCf := s.casemap(msg.Params[0])
 		nickCf := s.casemap(msg.Prefix.Name)
-- 
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