.tmux.conf

unbind C-a
unbind C-b
unbind C-Space
# set space as prefix
set -g prefix C-a  # screen compatibility
set -g prefix C-Space

# use a different prefix for nested
bind-key -n C-y send-prefix

# add double-tap meta key to toggle
# if theres more than one window, switch to last window
# if theres only one window, try to toggle between panes
bind-key C-Space if-shell 'test $(tmux list-windows | wc -l) -gt 1' 'last-window' 'last-pane'

# pane colors and display

# create more intuitive split key combos (same as modern screen)
unbind |
bind | split-window -h
bind '\' split-window -h
bind 'C-\' split-window -h
unbind -
unbind _
bind - split-window -v
bind _ split-window -v

# vi for copy mode
setw -g mode-keys vi

# vi for command status
set -g status-keys vi

# vi keys to resize
bind -r C-k resize-pane -U 2
bind -r C-j resize-pane -D 2
bind -r C-h resize-pane -L 2
bind -r C-l resize-pane -R 2

# vi keys to navigate panes
bind -r k select-pane -U
bind -r j select-pane -D
bind -r h select-pane -L
bind -r l select-pane -R

# avoid cursor movement messing with resize
set -g repeat-time 200

# prompt me to open any URLs on current tmux buffer
# save the buffer, remove newlines to fix URLs split
# across multiple lines
# https://purarue.xyz/d/urlhandler?dark
bind -r u capture-pane -S -32768 \; save-buffer /tmp/tmux_buf \; run -b "cat /tmp/tmux_buf | tr -d '\n' | urlhandler --urlextract >/dev/null &"

# colors, clock, and stuff
set -g clock-mode-style 12
# use xterm-256color isntead of alacritty, since it doesnt seem like
# mac handles that properly
# https://github.com/alacritty/alacritty/issues/2487
set -g default-terminal "xterm-256color"
set -g base-index 1
setw -g pane-base-index 1

bind -r C-x confirm kill-server
bind -r x kill-pane

# color the pane borders nearly invisible
# (when not using hacked tmux without them)
set -g pane-border-style "fg=#111111"
set -g pane-active-border-style "fg=#111111"

# setting the delay between prefix and command
set -s escape-time 5

# avoid tmux from eating the shift keys
set-window-option -g xterm-keys on

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

# set C-prefix C-w to choose window as well
bind -r C-w choose-window

# disable status
# set -g status off

# enable mouse, to enter copy mode quickly (otherwise use prefix [)
set -g mouse on

# very unique Mac bug
if-shell "type 'reattach-to-user-namespace' >/dev/null" "set -g default-command 'reattach-to-user-namespace -l $SHELL'"

# styling
# set -g visual-activity off
set -g visual-bell off
set -g visual-silence off
setw -g monitor-activity off
set -g bell-action none

# see https://purarue.xyz/d/termcolors?dark for a script to get colors
# modes
# setw -g clock-mode-colour colour5
setw -g mode-style 'fg=colour1 bg=colour232 bold'

# panes
set -g pane-border-style 'fg=colour239 bg=default'
set -g pane-active-border-style 'fg=colour4 bg=default'

# statusbar
set -g status-position bottom
set -g status-justify left
set -g status-style 'bg=colour232 fg=colour137 dim'
set -g status-left ''
set -g status-right ''  # disable current time
set -g status-right-length 50
set -g status-left-length 20

set -g default-terminal "${TERM}"
set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'  # undercurl support
set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'  # underscore colours - needs tmux-3.0

setw -g window-status-current-style 'fg=colour1 bg=colour236 bold'
setw -g window-status-current-format ' #I#[fg=colour249]:#[fg=colour255]#W#[fg=colour249]#F '

# setw -g window-status-style 'fg=colour9 bg=colour236'
setw -g window-status-format ' #I#[fg=colour237]:#[fg=colour250]#W#[fg=colour244]#F '

setw -g window-status-bell-style 'fg=colour255 bg=colour1 bold'