.tmux.conf

# Core editor options
  # remap prefix from 'C-b' to 'C-s'
  unbind C-b
  set-option -g prefix C-s
  bind-key C-s send-prefix

  # Necessary for Powerline
  # tells tmux it has 256-color capabilities
  set -g default-terminal "screen-256color"

  # reload config file
  bind r source-file ~/.tmux.conf

  # Mouse mode
  set -g mouse on
  setw -g mode-keys vi

  # History limit
  set -g history-limit 8192

# Plugins
  # Tmux plugin management
  set -g @plugin 'tmux-plugins/tpm'
  set -g @plugin 'tmux-plugins/tmux-sensible'
  set -g @plugin 'tmux-plugins/tmux-continuum'
  set -g @plugin 'tmux-plugins/tmux-yank' # Not working rn: See https://github.com/tmux-plugins/tmux-yank
    set -g @yank_action 'copy-pipe-no-clear'
  # Look into this at some point https://github.com/tmux-plugins/tmux-sessionist
  #set -h @plugin 'tmux-plugins/tmux-sessionist'
  # file navigation: https://github.com/tmux-plugins/tmux-sidebar/blob/master/docs/options.md
  set -g @treemux-tree-nvim-init-file '~/.tmux/plugins/treemux/configs/treemux_init.lua'
  set -g @plugin 'kiyoon/treemux'
    #set -g @sidebar-tree-command 'tree -C'
    set -g @sidebar-tree-width '60'
    set -g @sidebar-tree-command 'fzf'
  # pretty theme uwu
    set -g @nord_tmux_no_patched_font "0" # until I get powerline fonts working ig
  set -g @plugin 'arcticicestudio/nord-tmux'
  # plugin to restore tmux windows on reboot
  set -g @plugin 'tmux-plugins/tmux-resurrect'
    set -g @resurrect-save 'S'
    set -g @resurrect-restore 'R'
    set -g @resurrect-strategy-vim 'session' # make it restore vim correctly
    set -g @resurrect-capture-pane-contents 'on'
  # These bindings are for X Windows only. If you're using a different
  # window system you have to replace the `xsel` commands with something
  # else. See https://github.com/tmux/tmux/wiki/Clipboard#available-tools
  bind -T copy-mode    DoubleClick1Pane select-pane \; send -X select-word \; send -X copy-pipe-no-clear "xsel -i"
  bind -T copy-mode-vi DoubleClick1Pane select-pane \; send -X select-word \; send -X copy-pipe-no-clear "xsel -i"
  bind -n DoubleClick1Pane select-pane \; copy-mode -M \; send -X select-word \; send -X copy-pipe-no-clear "xsel -i"
  bind -T copy-mode    TripleClick1Pane select-pane \; send -X select-line \; send -X copy-pipe-no-clear "xsel -i"
  bind -T copy-mode-vi TripleClick1Pane select-pane \; send -X select-line \; send -X copy-pipe-no-clear "xsel -i"
  bind -n TripleClick1Pane select-pane \; copy-mode -M \; send -X select-line \; send -X copy-pipe-no-clear "xsel -i"
  bind -n MouseDown2Pane run "tmux set-buffer -b primary_selection \"$(xsel -o)\"; tmux paste-buffer -b primary_selection; tmux delete-buffer -b primary_selection"

# Pane/window management & navigation
  # Start pane/window indices at 1
  set -g base-index 1
  setw -g pane-base-index 1

  # split panes using | and -
  bind | split-window -h
  bind - split-window -v
  unbind '"'
  unbind %
  unbind Space

  # Order using names instead of indexes, which I cannot seem to change
  bind s choose-tree -sZ -O name
  bind w run-shell "tmux choose-tree -Z -w -f '##{==:#{session_name},##{session_name}}'"

	# Smart pane switching with awareness of Vim splits.
	# See: https://github.com/christoomey/vim-tmux-navigator
	is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
			| grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|l?n?vim?x?|fzf)(diff)?$'"
	bind-key -n 'C-h' if-shell "$is_vim" 'send-keys C-h'  'select-pane -L'
	bind-key -n 'C-j' if-shell "$is_vim" 'send-keys C-j'  'select-pane -D'
	bind-key -n 'C-k' if-shell "$is_vim" 'send-keys C-k'  'select-pane -U'
	bind-key -n 'C-l' if-shell "$is_vim" 'send-keys C-l'  'select-pane -R'
	tmux_version='$(tmux -V | sed -En "s/^tmux ([0-9]+(.[0-9]+)?).*/\1/p")'
	if-shell -b '[ "$(echo "$tmux_version < 3.0" | bc)" = 1 ]' \
			"bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\'  'select-pane -l'"
	if-shell -b '[ "$(echo "$tmux_version >= 3.0" | bc)" = 1 ]' \
			"bind-key -n 'C-\\' if-shell \"$is_vim\" 'send-keys C-\\\\'  'select-pane -l'"

	bind-key -T copy-mode-vi 'C-h' select-pane -L
	bind-key -T copy-mode-vi 'C-j' select-pane -D
	bind-key -T copy-mode-vi 'C-k' select-pane -U
	bind-key -T copy-mode-vi 'C-l' select-pane -R
	bind-key -T copy-mode-vi 'C-\' select-pane -l

  # Clear screen using prefix+C-l
  bind C-l send-keys 'C-l'

  # switch panes using prefix-hjkl
  bind h select-pane -L
  bind l select-pane -R
  bind j select-pane -D
  bind k select-pane -U

  # switch panes using Alt-arrow without prefix
  bind -n M-Left select-pane -L
  bind -n M-Right select-pane -R
  bind -n M-Up select-pane -U
  bind -n M-Down select-pane -D

  # ezpz move windows up/down in the list
  bind-key S-Left swap-window -t -1\; select-window -t -1
  bind-key S-Right swap-window -t +1\; select-window -t +1

  # Search for windows
  bind-key f command-prompt "choose-tree -Z -w -s -f '#{m/i:*%%*,#{session_name}}'"
  bind-key F run-shell 'tmux command-prompt "choose-tree -Z -f \"##{&&:##{m/i:*%%*,##{window_name}},##{==:#{session_name},##{session_name}}}\""'

  # TODO custom switcher script: https://www.reddit.com/r/tmux/comments/111jmf8/how_to_reorder_sessions/

# Window titles
  # enable wm window titles
  set -g set-titles on
  # stop tmux from renaming my shit
  set -g automatic-rename off
  set -g allow-rename off

  # quick set/clear of window title suffixes
  # TODO make this ignore ☛ windows
  bind N command-prompt {run-shell 'base=$(tmux display-message -p ${session_name} | gsed -E "s/\[([^-]*\S)(\s*-.*)?\].*/\\1/"); if [[ -n "%1" ]]; then tmux rename-session -t "#{session_name}" "${base} - %1"; else tmux rename-session -t "#{session_name}" "${base}"; fi'}

# Statusbar
  # Make room for my session names
  set-option -ag status-left-length 30
  # TODO https://arcolinux.com/everything-you-need-to-know-about-tmux-status-bar/

# Misc
  # stop esc from taking forever
  set -s escape-time 1
  set -g status-interval 0

  # Make mouse-mode copies goto my clipboard
  # doesn't work with my work x-forwarding setup >:(
  bind -T copy-mode    C-c send -X copy-pipe-no-clear "xsel -i --clipboard"
  bind -T copy-mode-vi C-c send -X copy-pipe-no-clear "xsel -i --clipboard"

  # Useful popups
  # Ty to this thread for how to toggle
  # https://www.reddit.com/r/tmux/comments/olgte7/floating_popups_in_tmux/
  #bind-key -n M-` if-shell -F '#{==:#{session_name},☛scratch}' {
  #  detach-client
  #} {
  #  display-popup -w 80% -h 80% -E "tmux new-session -A -s ☛scratch -c ~"
  #}
  #bind-key -n C-M-b if-shell -F '#{==:#{session_name},☛btop}' {
  #  detach-client
  #} {
  #  display-popup -w 50% -h 75% -E "tmux attach-session -t ☛btop"
  #}

  new-session -A -s "☛ system-utils" -n "dotfiles" -c "~/dotfiles"
  new-window -S -n "packages"
  new-window -S -n "btop" btop
  choose-tree -sZ -O name

  # Superseded by cooler menu option
  bind-key -n M-` if-shell -F '#{==:#{=1:session_name},☛}' {
    detach-client
  } {
    # TODO make the options create the window/command if it doesn't already exist
    display-menu -x C -y C -T "System Utilities" \
      "☛ scratch  "  ` 'display-popup -w 80% -h 80% -E "tmux new-session -A -s \"☛ scratch\" -c ~"' \
      "☛ dotfiles "  1 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:dotfiles\""' \
      "☛ packages "  2 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t \"☛ system-utils:packages\""' \
      "☛ btop     "  3 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:btop\""'
  }
  bind-key ` if-shell -F '#{==:#{=1:session_name},☛}' {
    detach-client
  } {
    # TODO make the options create the window/command if it doesn't already exist
    display-menu -x C -y C -T "System Utilities" \
      "☛ scratch  "  ` 'display-popup -w 80% -h 80% -E "tmux new-session -A -s \"☛ scratch\" -c ~"' \
      "☛ dotfiles "  1 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:dotfiles\""' \
      "☛ packages "  2 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t \"☛ system-utils:packages\""' \
      "☛ btop     "  3 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:btop\""'
  }
  # Do the same with middle mouse key
  # https://www.seanh.cc/2020/12/28/binding-keys-in-tmux/
  bind-key -n MouseDown2Pane if-shell -F '#{==:#{=1:session_name},☛}' {
    display-menu -x M -y M -T "System Utilities" \
      "☚ exit     "  Esc 'detach-client' \
      "☛ scratch  "  `   'switch-client -t ☛ scratch' \
      "☛ dotfiles "  1   'switch-client -t ☛ system-utils:dotfiles' \
      "☛ packages "  2   'switch-client -t ☛ system-utils:packages' \
      "☛ btop     "  3   'switch-client -t ☛ system-utils:btop'
  } {
    # TODO make the options create the window/command if it doesn't already exist
    display-menu -x M -y M -T "System Utilities" \
      "☛ scratch  "  ` 'display-popup -w 80% -h 80% -E "tmux new-session -A -s \"☛ scratch\" -c ~"' \
      "☛ dotfiles "  1 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:dotfiles\""' \
      "☛ packages "  2 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t \"☛ system-utils:packages\""' \
      "☛ btop     "  3 'display-popup -w 80% -h 80% -E "tmux new-session -- tmux switch-client -t  \"☛ system-utils:btop\""'
  }
  bind-key -n MouseDown2Border send-keys -M MouseDown2Pane
  bind-key -n MouseDown2Status send-keys -M MouseDown2Pane
  bind-key -n MouseDown2StatusLeft send-keys -M MouseDown2Pane
  bind-key -n MouseDown2StatusRight send-keys -M MouseDown2Pane
  bind-key -n MouseDown2StatusDefault send-keys -M MouseDown2Pane

# Init TPM ­ MUST REMAIN LAST
run '~/.tmux/plugins/tpm/tpm'