nix/modules/home-manager/tmux.nix

{
  # colors,
  # font,
  ...
}: {
  programs.tmux = {
    enable = true;
    baseIndex = 1;
    clock24 = true;
    extraConfig = ''
      unbind C-b
      set -g prefix C-s

      # enable tmux to support helix colors
      set -g default-terminal "tmux-256color"
      set -g terminal-overrides ",xterm-256color:RGB"

      set -g update-environment "WAYLAND_DISPLAY DISPLAY"

      bind R source-file "$HOME/.tmux.conf" \; display-message "Reloaded $HOME/.tmux.conf"
      bind o display-message "Saved pane output to #(tmux-save-buffer '#S')"
      bind O run "tmux-edit-buffer"

      bind D attach-session -t . -c '#{pane_current_path}' \; display-message "Set session path to #{pane_current_path}"

      bind H set -s status # toggle status bar

      bind v split-window -h -c "#{pane_current_path}"
      bind b split-window -c "#{pane_current_path}"
      bind h split-window -c "#{pane_current_path}"

      bind -n C-l select-pane -R
      bind -n C-k select-pane -U

      bind -n C-j select-pane -D
      # enabling a ^J hotkey causes breakage when pasting anything that start with a newline, since it triggers the hotkey and some weird interaction with bracketed paste causes the pane to enter a broken state

      bind -n C-h select-pane -L

      bind -n C-M-l split-window -h -c "#{pane_current_path}"
      bind -n C-M-j split-window -v -c "#{pane_current_path}"

      # tab creation
      bind -n C-t new-window

      # tab nav is the default p and n binds
      # window and session switcher is the default w bind

      set -g mouse on
      set -g escape-time 0

      set -g monitor-activity on
      set -g visual-bell off
      set -g bell-action other
      set -g activity-action none

      set -g mode-keys vi
      set -g history-limit 1000000

      set -g status on
      set -g status-position bottom
      set -g status-style "fg=colour8 bg=default"
      set -g status-interval 5
      set -g status-left-length 50
      set -g window-status-style "fg=colour8 bg=default"
      set -g window-status-format "#W"
      set -g window-status-separator " "
      set -g window-status-activity-style "fg=colour7 bg=default"
      set -g window-status-bell-style "fg=colour1 bg=default"
      set -g window-status-current-style "fg=colour4 bg=default"
      set -g window-status-current-format " #W "
      set -g status-left "#{client_user}@#h:#S "
      set -g status-right "#(kubeline && printf ' ')"
      set -g status-left-length 1000

      set -g message-style "fg=colour7 bg=default"
      set -g pane-active-border-style fg=blue
      set -g pane-border-style fg=colour0
      set -g clock-mode-colour colour8
      set -g base-index 1
      set -g pane-base-index 1

      set -g window-status-current-format "#W"

      # present a menu of urls to open from the visible pane
      # TODO: fuzzy search this
      # bind u capture-pane \;\
      	# save-buffer /tmp/tmux-buffer \;\
      	# split-window -l 10 "urlscan /tmp/tmux-buffer"

      bind -T copy-mode-vi "y" send-keys -X copy-pipe-no-clear 'clip' \; display-message 'Copied to clipboard!'
      bind -T copy-mode-vi MouseDragEnd1Pane send-keys -X copy-pipe-no-clear 'clip' \; display-message 'Copied to clipboard!'

      bind K kill-pane
      bind C-S-k kill-window

      # Activate OFF mode
      bind -n M-o \
          set prefix None \;\
          set key-table off \;\
      	set -ag status-right " OFF"

      # Disable OFF mode
      bind -T off M-O \
          set -u prefix \;\
          set -u key-table \;\
      	source-file "$HOME/.config/tmux/tmux.conf"

      # set -g @plugin 'tmux-plugins/tpm'
      # set -g @plugin 'tmux-plugins/tmux-resurrect'
      # set -g @plugin 'tmux-plugins/tmux-continuum'

      # set -g @resurrect-capture-pane-contents 'on'
      # set -g @resurrect-processes 'helix hx vi vim nvim emacs man less more tail top htop btm irssi weechat mutt "git log" iex mix deno watchexec mosh-client ssh senpai broot nnn iex mix'

      # bind A run-shell "#{@resurrect-save-script-path}"
      # bind L run-shell "#{@resurrect-restore-script-path}"

      # set -g @continuum-restore 'on'
      # set -g @continuum-save-interval '120'
    '';
  };
  home.shellAliases = {
    t = "tmux";
  };
}