# Keybinding Summary
#========================================================
# Rename Session    -> <ctrl-a> $
# Rename Tab        -> <ctrl-a> ,
# Next/prev tab     -> <ctrl-a> n,p
# H-split/V-split   -> <ctrl-a> s,v
# Resize Pane       -> <ctrl-a> left,right,up,down (repeat press)
# Switch Pane       -> <ctrl-a> h,j,k,l
# Enter copy mode   -> <ctrl-a> [
# Exit copy mode    -> <enter>
# Reload tmux.conf  -> <ctrl-a> r

# More at: https://tmuxcheatsheet.com

#========================================================
# KEY BINDINGS
#========================================================
# Change Tmux leader key to -> <ctrl-a>
unbind C-b
set -g prefix C-a
bind-key C-a send-prefix

# Kill current session with q
bind q confirm-before kill-session

unbind %
bind v split-window -h
unbind '"'
bind s split-window -v

# Intuitive split bindings to | & -
bind - split-window -v -c "#{pane_current_path}"
bind | split-window -h -c "#{pane_current_path}"

# <leader> h,j,k,l to move between panes
bind -r h select-pane -L
bind -r j select-pane -D
bind -r k select-pane -U
bind -r l select-pane -R

# Use <leader> repeated(h,j,k,l)s to resize pane
bind -r Left resize-pane -L
bind -r Right resize-pane -R
bind -r Up resize-pane -U
bind -r Down resize-pane -D

# Use Vim Navigations to copy text from the NON-vim panes
# Enable Tmux copy mode with <leader>[ -> Then use Vim navigations
setw -g mode-keys vi
# Use `v` to trigger selection
bind-key -T copy-mode-vi v send-keys -X begin-selection
# Use `y` to yank current selection
bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel
# Enable mouse selection as well
unbind -T copy-mode-vi MouseDragEnd1Pane

# From Tmux-sensible Plugin
bind C-p previous-window
bind C-n next-window
bind C-a send-prefix
bind a last-window
bind r source-file "~/.config/tmux/tmux.conf" \; display-message "Tmux config reloaded."

# Change resurrect keys to <ctrl-s>(Save) & <ctrl-r>(Resurrect)
set -g @resurrect-save "C-s"
set -g @resurrect-restore "C-r"

#========================================================
# OPTIONS
#========================================================
set -g set-clipboard on         # Use system clipboard

# From tmux-sensible plugin
set -g display-time 1000        # Display message for 1s
set -g history-limit 50000      # Increase scrollback buffer
set -g mouse on                 # Mouse mode
set -s escape-time 0            # Address Vim switching delay
set -g status-interval 5        # Refresh status every 5s (default 15s)
set -g focus-events on          # Enable focus event
setw -g aggressive-resize on    # For grouped sessions

# Resurrection Options
set -g @resurrect-capture-pane-contents "on"
set -g @resurrect-strategy-nvim "session"
set -g @resurrect-dir "$XDG_CONFIG_HOME/tmux/resurrect"

# Don't exit tmux when closing a session
set -g detach-on-destroy off

#========================================================
# APPEARANCE
#========================================================
# Start window numbers at 1 to match keyboard order with tmux window order
set -g base-index 1
set -g pane-base-index 1
set -g renumber-windows on
set-window-option -g pane-base-index 1

# Improve colors
set -g default-terminal "${TERM}"
set-option -g default-terminal "xterm-256color"
set-option -sa terminal-overrides ",xterm*:Tc"

# Colors
gray_light="#D8DEE9"
gray_medium="#ABB2BF"
gray_dark="#3B4252"
green_soft="#A3BE8C"
blue_muted="#81A1c1"
cyan_soft="#88C0D0"

# Status-Bar Style
set -g status-position top
set -g status-left-length 100
set -g status-style "fg=${gray_light},bg=default"
set -g status-left "#[fg=${green_soft},bold] #H: #S #[fg=${gray_light},nobold] "
set -g windows-status-format "#I:#W"
set -g window-status-current-format "#[fg=${cyan_soft},bold] #[underscore]#I:#W#{?window_zoomed_flag, 󰍋,}"
set -g status-right "| %a %d %b %I:%M %p"
set -g message-style "fg=${gray_light},bg=default"
set -g mode-style "fg=${gray_dark},bg=${blue_muted}"
set -g pane-border-style "fg=${gray_dark}"
set -g pane-active-border-style "fg=${gray_medium}"