;;; bandali-ibuffer.el --- bandali's Ibuffer setup -*- lexical-binding: t; -*-

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

;; Author: Amin Bandali <bandali@gnu.org>
;; Keywords: tools

;; 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 Ibuffer setup.

;;; Code:

(with-eval-after-load 'ibuffer
  (setopt
   ibuffer-saved-filter-groups
   '(("default"
      ("dired" (mode . dired-mode))
      ("erc" (mode . erc-mode))
      ("gnus"
       (or
        (mode . gnus-group-mode)
        (mode . gnus-server-mode)
        (mode . gnus-summary-mode)
        (mode . gnus-article-mode)
        (mode . message-mode)))
      ("shell"
       (or
        (mode . eshell-mode)
        (mode . shell-mode)
        (mode . term-mode)))
      ("tex"
       (or
        (mode . tex-mode)
        (mode . bibtex-mode)
        (mode . latex-mode)))))
   ibuffer-formats
   `((mark modified read-only locked
           " " (name 18 18 :left :elide)
           " " (size-h 9 -1 :right)     ; human-readable size
           " " (mode 16 16 :left :elide) " " filename-and-process)
     ,@ibuffer-formats))
  ;; Use human readable Size column instead of original one.
  (define-ibuffer-column size-h
    (:name "Size" :inline t)
    (cond
     ((> (buffer-size) (* 1024 1024))
      (format "%7.1fM" (/ (buffer-size) (* 1024.0 1024.0))))
     ((> (buffer-size) (* 100 1024))
      (format "%7.0fK" (/ (buffer-size) 1024.0)))
     ((> (buffer-size) 1024)
      (format "%7.1fK" (/ (buffer-size) 1024.0)))
     (t (format "%8d" (buffer-size)))))

  (let ((m ibuffer-mode-map))
    (b/keymap-set m "P" #'ibuffer-backward-filter-group)
    (b/keymap-set m "N" #'ibuffer-forward-filter-group)
    (b/keymap-set m "M-p" #'ibuffer-do-print)
    (b/keymap-set m "M-n" #'ibuffer-do-shell-command-pipe-replace)))
(b/keymap-global-set "C-x C-b" #'ibuffer)
(declare-function
 ibuffer-switch-to-saved-filter-groups "ibuf-ext" (name))
(add-hook
 'ibuffer-hook
 (lambda () (ibuffer-switch-to-saved-filter-groups "default")))

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