From 191b189b97915566a5fee5fcde4dd3f88e67bf61 Mon Sep 17 00:00:00 2001
From: plugd <plugd@thelambdalab.xyz>
Date: Mon, 20 May 2024 00:38:05 +0200
Subject: [PATCH] Joins/parts update context users.

---
 murk.el | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/murk.el b/murk.el
index ffe10e6..2e89982 100644
--- a/murk.el
+++ b/murk.el
@@ -57,6 +57,9 @@
   "IRC networks."
   :type '(alist :key-type string))
 
+(defcustom murk-show-joins nil
+  "Set to non-nil to be notified of joins, parts and quits.")
+
 (defcustom murk-display-header t
   "If non-nil, use buffer header to display current host and channel."
   :type '(boolean))
@@ -359,6 +362,11 @@ The head of this list is always the current context.")
    ctx
    (cl-union users (murk-context-users ctx))))
 
+(defun murk-del-context-user (ctx user)
+  (murk-set-context-users
+   ctx
+   (delete user (murk-context-users ctx))))
+
 ;;; Buffer
 ;;
 
@@ -657,6 +665,15 @@ The head of this list is always the current context.")
                               "Joining channel " channel " on " server)
          (murk-render-prompt)))
 
+      ("JOIN"
+       (let* ((channel (car (murk-msg-params msg)))
+              (nick (murk-msg-src msg))
+              (ctx (murk-get-context server channel)))
+         (murk-add-context-users ctx (list nick))
+         (if murk-show-joins
+             (murk-display-notice ctx nick " joined channel " channel
+                                  " on " server))))
+
       ((and "PART"
             (guard (equal (murk-connection-nick server)
                           (murk-msg-src msg))))
@@ -665,6 +682,15 @@ The head of this list is always the current context.")
          (murk-remove-context (list server channel))
          (murk-render-prompt)))
 
+      ("PART"
+       (let* ((channel (car (lurk-msg-params msg)))
+              (nick (lurk-msg-src msg))
+              (ctx (murk-get-context server channel)))
+         (murk-del-context-user ctx nick)
+         (if murk-show-joins
+             (murk-display-notice ctx nick " left channel " channel
+                                  " on " server))))
+
       ("QUIT"
        (let ((nick (murk-msg-src msg))
              (reason (mapconcat 'identity (murk-msg-params msg) " ")))
@@ -715,6 +741,7 @@ The head of this list is always the current context.")
 (defvar murk-command-table
   '(("DEBUG" "Toggle debug mode on/off." murk-command-debug murk-boolean-completions)
     ("HEADER" "Toggle display of header." murk-command-header murk-boolean-completions)
+    ("SHOWJOINS" "Toggles display of joins/parts." murk-command-showjoins murk-boolean-completions)
     ("NETWORKS" "List known IRC networks." murk-command-networks)
     ("CONNECT" "Connect to an IRC network." murk-command-connect murk-network-completions)
     ("QUIT" "Disconnect from current network." murk-command-quit)
@@ -766,6 +793,16 @@ The head of this list is always the current context.")
     (setq-local header-line-format nil)
     (murk-display-notice nil "Header disabled.")))
 
+(defun murk-command-showjoins (params)
+  (setq murk-show-joins 
+        (if params
+            (if (equal (upcase (car params)) "ON")
+                t
+              nil)
+          (not murk-show-joins)))
+  (murk-display-notice nil "Joins/parts will now be "
+                       (if murk-show-joins "shown" "hidden") "."))
+
 (defun murk-command-clear (params)
   (if (not params)
       (murk-clear-buffer)
-- 
2.20.1