.tmux.conf

# General
# Colours and Italics
set -g default-terminal "tmux-256color"
set -as terminal-overrides ',xterm*:sitm=\E[3m'
set -ga terminal-overrides ',alacritty:Tc'

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

# Reduce escape key input registering delay
set -sg escape-time 10

# Don't rename windows automatically
set -g allow-rename off

# Enable mouse control (clickable windows, panes, resizable panes)
set -g mouse on

# Key maps
# remap prefix from 'C-b' to 'C-a'
unbind C-b
set -g prefix C-a
bind-key C-a send-prefix

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

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

# Navigation with nvim-tmux-navigation
is_vim="ps -o state= -o comm= -t '#{pane_tty}' \
  | grep -iqE '^[^TXZ ]+ +(\\S+\\/)?g?(view|n?vim?x?)(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 -n 'C-Space' if-shell "$is_vim" 'send-keys C-Space' 'select-pane -t:.+'

# Switch panes using Control-h/j/k/l keys (with nvim-tmux-navigation)
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
bind-key -T copy-mode-vi 'C-Space' select-pane -t:.+

# Resize panes using prefix and (uppercase) H, J, K, L keys
bind H resize-pane -R
bind J resize-pane -D
bind K resize-pane -U
bind L resize-pane -L

# Command mode with semi-colon
bind \; command-prompt

# Panes
set -g pane-border-style fg=white
set -g pane-active-border-style fg=green

# Status bar
set -g status-bg black
set -g status-fg brightblack

set -g status-left-length 200
set -g status-right-length 200

set -g status-right '\
#[nobold,nounderscore,noitalics] %H:%M %a %Y-%m-%d \
#[nobold,nounderscore,noitalics] "#{=21:pane_title}" '

# Tmux Plugin Manager (TPM)
# IMPORTANT: Must be put at the bottom
# Press `prefix + I` (capital I) to install the plugins listed below
# List of plugins
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tmux-resurrect'
# tmux-ressurect
# for resurrecting vim sessions
set -g @resurrect-strategy-vim 'session'
# for resurrecting Neovim sessions
set -g @resurrect-strategy-nvim 'session'

# Initialize TMUX plugin manager (keep this line at the very bottom of file)
run '~/.tmux/plugins/tpm/tpm'