nix-config/tmux/.tmux.conf

unbind C-b
set -g prefix C-s

bind-key r source-file ~/.tmux.conf \; display-message "~/.tmux.conf reloaded"

bind-key -n C-h select-pane -L
bind-key -n C-j select-pane -D
bind-key -n C-k select-pane -U
bind-key -n C-l select-pane -R

set-option -g status-keys "emacs"
set-option -g default-terminal "screen-256color"
set-option -ga terminal-overrides ",*256col*:Tc"

bind-key - split-window -v  -c '#{pane_current_path}'
bind-key \\ split-window -h  -c '#{pane_current_path}'

bind -n S-Left resize-pane -L 2
bind -n S-Right resize-pane -R 2
bind -n S-Down resize-pane -D 1
bind -n S-Up resize-pane -U 1

bind -n C-Left resize-pane -L 10
bind -n C-Right resize-pane -R 10
bind -n C-Down resize-pane -D 5
bind -n C-Up resize-pane -U 5

set-option -g status-left-length 50
set-option -g status-right ""

bind c new-window -c "#{pane_current_path}"

set -g base-index 1 
set -g renumber-windows on

# Break a pane into a new window.
bind-key b break-pane -d

bind-key C-j choose-tree

# Use vim keybindings in copy mode
setw -g mode-keys vi

# Setup 'v' to begin selection as in Vim
bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'y' send -X copy-pipe "reattach-to-user-namespace pbcopy"

# Update default binding of `Enter` to also use copy-pipe
unbind -T copy-mode-vi Enter
bind-key -T copy-mode-vi 'Enter' send -X copy-pipe "reattach-to-user-namespace pbcopy"

bind C-j split-window -v "tmux list-sessions | sed -E 's/:.*$//' | grep -v \"^$(tmux display-message -p '#S')\$\" | fzf --reverse | xargs tmux switch-client -t"

bind-key C-b send-keys 'tat && exit' 'C-m'
bind-key K run-shell 'tmux switch-client -n \; kill-session -t "$(tmux display-message -p "#S")" || tmux kill-session'

# 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|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 -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

# Allow clearing screen with ctrl-l by using <prefix> C-l
bind C-l send-keys 'C-l'
bind C-k send-keys 'C-k'

# Plugins
set -g @plugin "arcticicestudio/nord-tmux"
set -g @plugin 'tmux-plugins/tmux-sensible'
set -g @plugin 'tmux-plugins/tpm'

# Initialize TMUX plugin manager
run '~/.tmux/plugins/tpm/tpm'