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;;; bandali-erc.el --- bandali's ERC setup -*- lexical-binding: t; -*-

;; Copyright (c) 2018-2025 Amin Bandali <bandali@gnu.org>

;; Author: Amin Bandali <bandali@gnu.org>
;; Keywords: IRC, chat, client, Internet

;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;; GNU General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; My ERC setup for IRC in GNU Emacs.

;;; Code:

(with-eval-after-load 'erc
  (setopt
   erc-auto-query 'bury
   erc-autojoin-domain-only nil
   erc-dcc-get-default-directory (b/emacs.d "erc-dcc")
   erc-email-userid "bandali"
   ;; erc-join-buffer 'bury
   ;; erc-lurker-hide-list '("JOIN" "PART" "QUIT")
   erc-nick "bandali"
   erc-prompt "erc>"
   erc-prompt-for-password nil
   erc-query-display 'buffer
   ;; erc-server-reconnect-attempts 5
   erc-server-reconnect-timeout 3)

  (if (version< erc-version "5.6-git")
      (setopt erc-format-nick-function #'erc-format-@nick)
    (setopt erc-show-speaker-membership-status t))

  (unless (version< erc-version "5.5")
    (setopt erc-rename-buffers t))

  (unless (version< erc-version "5.4")
    (declare-function
     erc-message "erc-backend" (message-command line &optional force))
    (declare-function erc-default-target "erc")
    (declare-function erc-current-nick "erc")
    (defun erc-cmd-OPME ()
      "Ask chanserv to op me in the current channel."
      (erc-message "PRIVMSG"
                   (format "chanserv op %s %s"
                           (erc-default-target)
                           (erc-current-nick))
                   nil))
    (declare-function erc-cmd-DEOP "erc" (&rest people))
    (defun erc-cmd-DEOPME ()
      "Deop myself in the current channel."
      (erc-cmd-DEOP (format "%s" (erc-current-nick)))))

  (add-to-list 'erc-modules 'keep-place)
  (add-to-list 'erc-modules 'log)
  (when (display-graphic-p)
    (add-to-list 'erc-modules 'notifications)
    (add-to-list 'erc-modules 'smiley))
  (add-to-list 'erc-modules 'spelling)

  (setopt
   ;; erc-enable-logging 'erc-log-all-but-server-buffers
   erc-log-file-coding-system 'utf-8
   erc-log-write-after-insert t
   erc-log-write-after-send t
   erc-save-buffer-on-part nil
   erc-save-queries-on-quit nil)

  (with-eval-after-load 'erc-match
    (setopt
     erc-pal-highlight-type 'nick
     erc-pals
     '("corwin" "^gopar" "^iank" "^rwp" "technomancy" "thomzane"))
    (set-face-attribute
     'erc-pal-face nil
     :foreground 'unspecified
     :weight 'unspecified
     :inherit 'erc-nick-default-face
     :background "#ffffdf"))

  (with-eval-after-load 'erc-pcomplete
    (setopt erc-pcomplete-nick-postfix ",")
    ;; for matterircd nick (username) completions
    ;; (advice-add
    ;;  #'pcomplete-erc-nicks
    ;;  :around
    ;;  (lambda (orig-fun &rest args)
    ;;    (let ((nicks (apply orig-fun args)))
    ;;      (if (string-match-p "matterircd" (symbol-name (erc-network)))
    ;;          (mapcar (lambda (nick) (concat "@" nick)) nicks)
    ;;        nicks))))
    )

  (with-eval-after-load 'erc-stamp
    (setopt
     erc-timestamp-only-if-changed-flag nil
     erc-timestamp-format "%T "
     erc-insert-timestamp-function #'erc-insert-timestamp-left)
    (set-face-attribute
     'erc-timestamp-face nil
     :foreground "#aaaaaa"
     :weight 'unspecified
     :background 'unspecified))

  (with-eval-after-load 'erc-track
    (setopt
     erc-track-enable-keybindings nil
     erc-track-exclude-types
     '("JOIN" "MODE" "NICK" "PART" "QUIT"
       "324" "329" "332" "333" "353" "477")
     erc-track-position-in-mode-line t
     erc-track-priority-faces-only 'all
     erc-track-shorten-function nil
     erc-track-showcount t))

  (declare-function erc-update-modules "erc")
  (erc-update-modules)

  (b/keymap-global-set "C-c w e" #'erc-switch-to-buffer-other-window)
  (b/keymap-set erc-mode-map "M-a" #'erc-track-switch-buffer))
(b/keymap-global-set
 "C-c e l"
 (lambda ()
   (interactive)
   (erc :id "soju-libera"
        :server "localhost"
        :port 6667
        :user "bandali/irc.libera.chat")))
(b/keymap-global-set
 "C-c e o"
 (lambda ()
   (interactive)
   (erc :id "soju-oftc"
        :server "localhost"
        :port 6667
        :user "bandali/irc.oftc.net")))

(provide 'bandali-erc)
;;; bandali-erc.el ends here