.tmux.conf

set-option -q prefix C-b

set -s escape-time 0

set -g default-terminal "xterm-256color"
set-option -ga terminal-overrides ",xterm-256color:Tc"
set-option -sa terminal-overrides ",xterm-kitty:RGB"

bind-key -T copy-mode-vi 'v' send -X begin-selection
bind-key -T copy-mode-vi 'y' send -X copy-selection-and-cancel
bind -T copy-mode-vi y send-keys -X copy-pipe-and-cancel 'xsel -i -p'
bind-key 'C-z' resize-pane -Z
# more vim-like word boundaries in copy mode
set -g word-separators "<>(){}[]/'\";@*+,.-_=!£$%^&:#~?`¬|\\ "

set -g mouse on
set -g history-limit 5000000
set -g status-interval 1
set -g monitor-activity on
set -g visual-activity on
set -g set-titles on
set -g set-titles-string "#W (#h)"
set -g base-index 1
setw -g pane-base-index 1
set -g lock-command vlock

set -g status-keys vi
setw -g mode-keys vi
bind r source-file ~/.tmux.conf \; display "Reloaded config."

set -g status-left-length 25
set -g status-justify centre

# change window screen colors
set-option -wg mode-style bg="#FE8019",fg="#3C3836"

# default statusbar colors (terminal bg should be #282828)
set-option -g status-style bg=terminal,fg="#A89984"

# default window title colors
set-option -wg window-status-style bg="#3C3836",fg="#bdae93"

# colors for windows with activity
set-option -wg window-status-activity-style bg="#3C3836",fg="#bdae93"

# colors for windows with bells
set-option -wg window-status-bell-style bg="#3C3836",fg="#FE8019"

# active window title colors
set-option -wg window-status-current-style bg="#a89984",fg="#282828"

# pane border
set-option -g pane-active-border-style fg="#FE8019"
set-option -g pane-border-style fg="#3C3836"

# message info
set-option -g message-style bg="#FE8019",fg="#3C3836"

# writing commands inactive
set-option -g message-command-style bg="#A89984",fg="#3C3836"

# pane number display
set-option -g display-panes-active-colour "#FE8019"
set-option -g display-panes-colour "#3C3836"

# clock
set-option -wg clock-mode-colour "#FE8019"

# copy mode highlighting
%if #{>=:#{version},3.2}
    set-option -wg copy-mode-match-style "bg=#A89984,fg=#3C3836"
    set-option -wg copy-mode-current-match-style "bg=#FE8019,fg=#3C3836"
%endif

# statusbar formatting
set-option -g status-left "#[bg=#a89984, fg=#282828] #(whoami)@#H  "
set-option -g status-right "#[bg=#a89984, fg=#282828] #{session_name} "

set-option -wg window-status-current-format " #{window_index}#{window_flags} #{window_name} "
set-option -wg window-status-format " #{window_index}#{window_flags} #{window_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|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

bind-key "U" run -b "\
    tmux capture-pane -J -p -S -2000 \
    | grep -oP '[^\]\[\s\(\){}=$\\'\\''\\\"\\t ]{4,}' \
    | awk '!x[$0]++' \
    | sed '1!G;h;$!d' \
    | nl -w3 -s '  ' \
    | fzf-tmux -d 35% -m -0 --no-preview --no-border \
    | awk '{print $2}' \
    | xargs tmux set-buffer || true";

bind-key "u" run -b "\
    tmux capture-pane -J -p -S -2000 \
    | grep -oP '[^\]\[\s\(\){}=$\\'\\''\\\"\\t ]{4,}' \
    | awk '!x[$0]++' \
    | sed '1!G;h;$!d' \
    | nl -w3 -s '  ' \
    | fzf-tmux -d 35% -m -0 --no-preview --no-border \
    | awk '{print $2}' \
    | xargs tmux set-buffer && tmux paste-buffer || true";

bind-key -n "F9" {
    set-option -q prefix none
    set-option -g status-left "#[bg=#a89984, fg=#282828] (SUSPENDED) #(whoami)@#H  "
    bind-key -n "F9" {
        source-file ~/.tmux.conf
        display "Resumed"
    }
}