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;; This "home-environment" file can be passed to 'guix home reconfigure'
;; to reproduce the content of your profile.  This is "symbolic": it only
;; specifies package names.  To reproduce the exact same profile, you also
;; need to capture the channels being used, as returned by "guix describe".
;; See the "Replicating Guix" section in the manual.

;; See also, for some tips:
;; https://github.com/alezost/shepherd-config/blob/master/init.scm

;; TODO: Move from Xorg/i3 to Wayland/sway.
;; TODO: Theme stuff using https://github.com/catppuccin -- needs
;; integration into config files. Can I do something fancy using
;; `computed-file' to combine catppuccin-provided configs with my own,
;; e.g. for kitty and rofi?
;; Integrate upstream (ctp) configs into ~/guix-home using git submodules?
;; https://github.com/catppuccin/rofi
;; https://github.com/catppuccin/obs
;; https://github.com/catppuccin/waybar
;; https://github.com/catppuccin/insomnia
;; https://github.com/catppuccin/kitty

(use-modules (gnu home)
             (gnu home services)
             (gnu home services desktop)
             (gnu home services shells)
             (gnu home services shepherd)
             (gnu packages)
             (gnu services)
             (gnu services shepherd)
             (guix gexp))

(define* (package-binary specification #:optional (binary specification))
  "Get the path of BINARY inside the package referred to by SPECIFICATION."
  (file-append (specification->package specification) "/bin/" binary))

(home-environment
 ;; Below is the list of packages that will show up in your
 ;; Home profile, under ~/.guix-home/profile.
 (packages
  (cons*
   ;; Install only bind-utils like dig, not the full suite.
   (list (specification->package "bind") "utils")
   (specifications->packages
    '(;; CLI tools
      "dos2unix" "dropbear" "emacs" "emacs-use-package" "file" "git"
      "imagemagick" "lesspipe" "nvme-cli" "openssh" "powertop"
      "python" "rsync" "sbcl" "smartmontools" "source-highlight" "tk"
      "tlp" "tmux" "tree" "unzip" "zip"
      ;; Shell
      "zsh" "zsh-autosuggestions" "zsh-syntax-highlighting" "zsh-autopair"
      ;; i3 and Xorg. i3 itself must be installed system-wide for gdm to pick it up.
      ;; acpilight is a drop-in xbacklight replacement, as xbacklight doesn't work on my system.
      "acpilight" "i3status" "dunst" "rofi" "rofi-pass" "hsetroot"
      "xdot" "xclip" "xdotool" "xdpyinfo" "xev" "xfd" "xfontsel"
      "xinput" "xkill" "xprop" "xrandr" "xrdb" "xsel" "xwininfo"
      ;; GUI programs
      "arandr" "gnupg" "pinentry-rofi" "icecat" "kitty" "nheko"
      "neomutt" "password-store"
      "gnome-keyring"  ; nheko needs gnome-keyring to store secrets over dbus (kwallet doesn't do dbus).
      "geoclue"  ; for redshift
      ;; Fonts
      "font-libertinus"
      "font-inconsolata" "font-fira-sans" "font-fira-code"
      ;; Monospace fonts to try out!
      "font-mononoki"     ; https://madmalik.github.io/mononoki/
      "font-victor-mono"  ; https://rubjo.github.io/victor-mono/
      ;; Theming
      "orchis-theme" "hicolor-icon-theme"))))

 ;; Below is the list of Home services.  To search for available
 ;; services, run 'guix home search KEYWORD' in a terminal.
 (services
  (list
   ;; TODO: xrdb -merge ~/.Xdefaults && xrdb -merge ~/.Xresources

   (service home-redshift-service-type
            (home-redshift-configuration
             ;; See info '(guix)Desktop Home Services'.
             (location-provider 'manual)
             ;; Approximate location
             (latitude 46.0)
             (longitude 6.0)
             ;; (location-provider 'geoclue2)  ; currently waits forever for a location -- not sure why geoclue doesn't work
             ;; (daytime-temperature 6500)  ; default 6500
             ;; (nighttime-temperature 4500)  ; default 4500
             (daytime-brightness 1.0)
             (nighttime-brightness 0.7)
             (extra-content "fade=0")))  ; with fade=1, restarting redshift causes flickering for a few secs

   (simple-service
    'user-services home-shepherd-service-type
    (list
     (shepherd-service
      (documentation "User Emacs daemon; connect using emacsclient.")
      (provision '(emacs))
      (start #~(make-forkexec-constructor
                (list #$(package-binary "emacs") "--fg-daemon")))
      (stop #~(make-kill-destructor)))
     (shepherd-service
      (documentation "User GPG agent daemon.")
      (provision '(gpg-agent))
      (start #~(lambda _
                 (invoke #$(package-binary "gnupg" "gpg-agent")
                         "--daemon" "--no-detach")))
      (stop #~(lambda _
                (invoke "gpg-connect-agent" "killagent" "/bye"))))))

   (service home-xdg-configuration-files-service-type
            `(;; All alibuild needs is an empty file.
              ("alibuild/disable-analytics" ,(plain-file "alibuild-disable-analytics" ""))
              ("git/config" ,(local-file "gitconfig"))
              ("gtk-3.0/settings.ini" ,(local-file "gtk3.ini"))
              ("htop/htoprc" ,(local-file "htoprc"))
              ("i3/config" ,(local-file "i3.conf"))
              ("i3status/config" ,(local-file "i3status.conf"))
              ("kitty/kitty.conf"
               ,(text-file* "kitty.conf"
                            (local-file "kitty.conf")
                            (local-file "catppuccin/kitty/mocha.conf")))
              ("lesskey" ,(local-file "lesskey"))))

   (service home-files-service-type
            `(;; https://sw.kovidgoyal.net/kitty/kittens/diff/
              (".local/bin/kdiff"
               ,(program-file "kdiff" #~(apply execl #$(package-binary "kitty")
                                               "+kitten" "diff" (cdr (command-line)))))
              ;; GnuPG config files must be in ~/.local/share/gnupg, not ~/.config,
              ;; so we can't use `home-xdg-configuration-files-service-type'.
              (".local/share/gnupg/gpg.conf" ,(local-file "gpg.conf"))
              (".local/share/gnupg/gpg-agent.conf"
               ;; We need to use #$output for `computed-file' to work.
               ;; Of course this isn't documented anywhere!
               ,(computed-file "gpg-agent.conf" #~(call-with-output-file #$output
                                                    (lambda (port)
                                                      (format port "\
pinentry-program ~a
# Needed if spawning lots of parallel gpg --decrypt processes. https://dev.gnupg.org/T3530
auto-expand-secmem
" #$(package-binary "pinentry-rofi"))))))))

   (service home-zsh-service-type
            (home-zsh-configuration
             (zshrc (list (local-file "zshrc")
                          (local-file "prompt.zsh")))))

   (simple-service
    'env-vars home-environment-variables-service-type
    ;; The `home-xdg-base-directories' service (enabled by default) sets $XDG_* variables for us.
    `(("GUIX_PACKAGE_PATH" . "$HOME/packages/guix")
      ;; ("GUILE_LOAD_PATH" .
      ;;  "$XDG_CONFIG_HOME/guix/current/share/guile/site/3.0${GUILE_LOAD_PATH:+:}$GUILE_LOAD_PATH")
      ;; ("GUILE_LOAD_COMPILED_PATH" .
      ;;  ,(string-append
      ;;    "$XDG_CONFIG_HOME/guix/current/lib/guile/3.0/site-ccache:"
      ;;    "$XDG_CONFIG_HOME/guix/current/share/guile/site/3.0"
      ;;    "${GUILE_LOAD_COMPILED_PATH:+:}$GUILE_LOAD_COMPILED_PATH"))

      ;; Auto-compilation is annoying and creates a bunch of files that are never cleaned up.
      ("GUILE_AUTO_COMPILE" . "0")

      ("EDITOR" . "emacsclient -qc")
      ("TERMINAL" . "kitty")
      ("PAGER" . "less")
      ;; Guix force-overrides $LESS by default, so force-force it to do what I want instead.
      ("GUIX_PAGER" . "env -u LESS less --ignore-case --quit-if-one-screen --RAW-CONTROL-CHARS --LONG-PROMPT --chop-long-lines")

      ;; Shell history -- primarily for zsh, but Emacs' eshell uses this too
      ("HISTSIZE" . "10000000")

      ("NVIM_TUI_ENABLE_CURSOR_SHAPE" . "1")
      ("LEDGER_FILE" . "$HOME/sync/ledger/ledger.journal")
      ("GTAGSLABEL" . "pygments")

      ;; ("GTK3_MODULES" . "$GTK3_MODULES${GTK3_MODULES:+:}libplotinus")

      ;; Disable at-spi-dbus-launcher accessibility service.
      ("NO_AT_BRIDGE" . "1")

      ;; For appmenu/global menu in Java applications.
      ;; https://gitlab.com/vala-panel-project/vala-panel-appmenu#experimental-features
      ("JAYATANA_FORCE" . "1")
      ;; Appmenu; GTK look-and-feel; XDG compliance in Java
      ;; https://wiki.manjaro.org/index.php?title=Set_all_Java_apps_to_use_GTK%2B_font_%26_theme_settings
      ;; TODO: install jayatana and add "-javaagent:/usr/share/java/jayatanaag.jar" option
      ("_JAVA_OPTIONS" .
       ,(string-append
         "$_JAVA_OPTIONS${_JAVA_OPTIONS:+ }-Dawt.useSystemAAFontSettings=on -Dswing.aatext=true "
         "-Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel "
         "-Dswing.crossplatformlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel "
         "-Djava.util.prefs.userRoot=$XDG_CONFIG_HOME/java"))

      ;; For programs from kde-servicemenus-pdf.
      ("LANGUAGE" . "en")

      ;; Smooth trackpad scrolling in Firefox.
      ;; https://wiki.archlinux.org/index.php/Firefox/Tweaks#Pixel-perfect_trackpad_scrolling
      ("MOZ_USE_XINPUT2" . "1")

      ;; XDG basedir spec compliance for various programs
      ;; See: https://wiki.archlinux.org/index.php/XDG_Base_Directory for a list of programs
      ("ANDROID_EMULATOR_HOME" . "$XDG_DATA_HOME/android-emulator")
      ("ASPELL_CONF" . "per-conf $XDG_CONFIG_HOME/aspell/aspell.conf; home-dir $XDG_DATA_HOME/aspell")
      ("BUP_DIR" . "$XDG_DATA_HOME/bup")
      ("CARGO_HOME" . "$XDG_DATA_HOME/cargo")
      ("DSHGROUP_PATH" . "$XDG_DATA_HOME/dsh/group:/etc/dsh/group")
      ("ELECTRUMDIR" . "$XDG_DATA_HOME/electrum")
      ("FG_HOME" . "$XDG_DATA_HOME/fgfs")
      ("GETIPLAYERUSERPREFS" . "$XDG_DATA_HOME/get_iplayer")
      ("GNUPGHOME" . "$XDG_DATA_HOME/gnupg")
      ("GTK2_RC_FILES" . "$XDG_CONFIG_HOME/gtk-2.0/gtkrc")
      ("ICEAUTHORITY" . "$XDG_CACHE_HOME/ICEauthority")
      ("INPUTRC" . "$XDG_CONFIG_HOME/readline/inputrc")
      ("IPYTHONDIR" . "$XDG_CONFIG_HOME/ipython")
      ("JUPYTER_CONFIG_DIR" . "$XDG_CONFIG_HOME/jupyter")
      ("NPM_CONFIG_USERCONFIG" . "$XDG_CONFIG_HOME/npm/npmrc")
      ("PASSWORD_STORE_DIR" . "$XDG_DATA_HOME/password-store")
      ("PLTUSERHOME" . "$XDG_DATA_HOME/racket")
      ("PYLINTHOME" . "$XDG_CACHE_HOME/pylint")
      ("PYLINTRC" . "$XDG_CONFIG_HOME/pylint/pylintrc")
      ("RECOLL_CONFDIR" . "$XDG_CONFIG_HOME/recoll")
      ("RLWRAP_HOME" . "$XDG_DATA_HOME/rlwrap")
      ("STACK_ROOT" . "$XDG_DATA_HOME/stack")
      ("TMUX_TMPDIR" . "$XDG_RUNTIME_DIR")
      ("WEECHAT_HOME" . "$XDG_CONFIG_HOME/weechat")
      ("XCOMPOSECACHE" . "$XDG_CACHE_HOME/X11/XCompose")
      ("XCOMPOSEFILE" . "$XDG_CONFIG_HOME/X11/XCompose")
      ("ZDOTDIR" . "$XDG_CONFIG_HOME/zsh")
      ;; ("ZPLUG_HOME" . "$XDG_DATA_HOME/zplug")
      ;; KONAN_DATA_DIR=~/.konan by default; grows to multiple GiB.
      ;; https://discuss.kotlinlang.org/t/change-konan-folder-location/18309
      ("KONAN_DATA_DIR" . "$XDG_CACHE_HOME/konan"))))))