;; always follow symlinks
(setq vc-follow-symlinks t)

;; Spaces instead of TABs
(setq-default indent-tabs-mode nil)
(setq-default tab-width 4)

;; Enable hippie expand on M-Space. It helps with path completion and more
(global-set-key "\M- " 'hippie-expand)

;; file encodings
(prefer-coding-system 'utf-8-unix)

;; Save temp files in the OS temp directory. Otherwise they clutter up the
;; current working directory
(setq backup-directory-alist
      `((".*" . ,temporary-file-directory)))
(setq auto-save-file-name-transforms
      `((".*" ,temporary-file-directory t)))

;; initial buffers should use text-mode
(setq-default major-mode 'text-mode)

;; insert only one space after a period
(setq sentence-end-double-space nil)

;; Enable line wrapping
(add-hook 'text-mode-hook 'turn-on-auto-fill)
;; line length
(setq-default fill-column 79)

;; Supress "ad-handle-definition: `tramp-read-passwd' got redefined" message at
;; start.
(setq ad-redefinition-action 'accept)

;; Remove whitespace when saving
(add-hook 'before-save-hook 'whitespace-cleanup)

;; Refresh buffers if the file changes on disk
(global-auto-revert-mode t)
(setq global-auto-revert-non-file-buffers t)
(setq auto-revert-use-notify nil)

(setq history-delete-duplicates t)

;; disbale the bell
(setq ring-bell-function 'ignore)

;; enable mouse support in the terminal
(xterm-mouse-mode 1)

(use-package tramp
  :config
  (add-to-list 'tramp-remote-path 'tramp-own-remote-path))

;; Prompt when quitting Emacs
(setq confirm-kill-emacs 'yes-or-no-p)

;; Save bookmarks right away
(setq bookmark-save-flag t)

;; switch focus to man page
(setq man-notify-method t)

;; use ripgrep or rg if possible
(setq xref-search-program (cond ((or (executable-find "ripgrep")
                                     (executable-find "rg")) 'ripgrep)
                                ((executable-find "ugrep") 'ugrep) (t
                                                                    'grep)))

;; required for autoloading packages on nixos
(dolist (path load-path)
  (when (string-match-p "/nix/store/[a-z0-9]\\{32\\}-emacs-packages-deps.*" path)
    (dolist (autoload-file (directory-files path t "-autoloads.el"))
      (with-demoted-errors "init.el error: %s"
        (load autoload-file nil t)))))

(setq ediff-split-window-function 'split-window-horizontally)
(setq ediff-window-setup-function 'ediff-setup-windows-plain)