# disable a dubious "feature" where remotely logging in and attaching to the
# existing session causes tmux to remove the $DISPLAY variable from future new
# windows (even after the remote user is no longer attached!)
set -g update-environment ""

# use UTF8
set -q -g utf8
set-window-option -q -g utf8 on

# make tmux display things in 256 colors
#set -g default-terminal "screen-256color"

unbind C-b
set -g prefix C-z
bind z send-prefix

# this is the best way to reorder windows
bind-key -n C-S-Left swap-window -t -1
bind-key -n C-S-Right swap-window -t +1

# redundantly bind some frequent commands so that the Control key does not have to be released
bind-key C-n next-window
bind-key Space next-window
bind-key C-Space next-window
bind-key C-p previous-window
bind-key C-z last-window
bind-key C-c new-window

# Use vi-like keys to do selection and copying. Ctrl-A Escape starts copy mode, 
# 'v' starts text selection and 'y' copies (yanks).
bind-key Escape copy-mode
bind-key [ copy-mode
bind-key C-[ copy-mode
# https://github.com/tmux/tmux/issues/754
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-selection
bind-key -T copy-mode-vi Enter send-keys -X copy-selection
#bind-key C-y run "tmux save-buffer - | xclip -i -selection clipboard"
#bind-key C-p run "tmux set-buffer \"$(xclip -o -selection clipboard)\"; tmux paste-buffer"

# TODO: get more from https://github.com/aaronbieber/dotfiles/blob/master/configs/tmux.conf

# shorten command delay
set -sg escape-time 1

# set window and pane index to 1 (0 by default)
set-option -g base-index 1
setw -g pane-base-index 1

# use PREFIX | to split window horizontally and PREFIX - to split vertically
bind | split-window -h
bind - split-window -v

# map Vi movement keys as pane movement keys
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# and use C-h and C-l to cycle thru panes
bind -r C-h select-window -t :-
bind -r C-l select-window -t :+

# resize panes using PREFIX H, J, K, L
bind H resize-pane -L 5
bind J resize-pane -D 5
bind K resize-pane -U 5
bind L resize-pane -R 5

# C-i for even-vertical arrangement and C-o to zoom current pane
#bind-key C-i select-layout even-vertical
#bind-key C-v select-layout even-horizontal
#bind-key C-o resize-pane -y 1000

# Sync panes
#bind C-s set-window-option synchronize-panes

# explicitly disable mouse control
#setw -g mode-mouse off
#set -g mouse-select-pane off
#set -g mouse-resize-pane off
#set -g mouse-select-window off

# ---------------------
# Copy & Paste
# ---------------------
# provide access to the clipboard for pbpaste, pbcopy
#set-option -g default-command "reattach-to-user-namespace -l zsh"
#set-window-option -g automatic-rename on

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

# setup 'v' to begin selection as in Vim
#bind-key -t vi-copy v begin-selection
#bind-key -t vi-copy y copy-pipe "reattach-to-user-namespace pbcopy"

# update default binding of 'Enter' to also use copy-pipe
#unbind -t vi-copy Enter
#bind-key -t vi-copy Enter copy-pipe "reattach-to-user-namespace pbcopy"

#bind y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '
#bind C-y run 'tmux save-buffer - | reattach-to-user-namespace pbcopy '

# Save entire tmux history to a file - file will be on machine where tmux is
# running
#bind-key * command-prompt -p 'save history to filename:' -I '~/tmux.history' 'capture-pane -S -32768 ; save-buffer %1 ; delete-buffer'

# -----------------------
# Multistart panes
# ----------------------
#bind-key P run-shell 'tmux-multistart as'
#bind-key A run-shell 'tmux-multistart alpha'
#bind-key B run-shell 'tmux-multistart beta'
#bind-key W run-shell 'tmux-multistart web'
#bind-key D run-shell 'tmux-multistart dev'
#bind-key T run-shell 'tmux-multistart txhub'

#bind-key C command-prompt -p "machine(s)/group: " "run-shell 'tmux-multistart %1'"

# ----------------------
# set some pretty colors
# ----------------------
# set pane colors - hilight the active pane
#set-option -g pane-border-fg colour235 #base02
#set-option -g pane-active-border-fg colour33 #blue
#set-option -g pane-active-border-fg colour240 #base01

# colorize messages in the command line
#set-option -g message-bg black #base02
#set-option -g message-fg brightred #orange

# ----------------------
# Status Bar
# -----------------------
#set-option -g status on                # turn the status bar on
#set -g status-utf8 on                  # set utf-8 for the status bar
#set -g status-interval 5               # set update frequencey (default 15 seconds)
#set -g status-justify centre           # center window list for clarity
# set-option -g status-position top    # position the status bar at top of screen

# visual notification of activity in other windows
#setw -g monitor-activity on
#set -g visual-activity on

# set color for status bar
#set-option -g status-bg colour235 #base02
#set-option -g status-fg yellow #yellow
#set-option -g status-attr dim 

# set window list colors - red for active and cyan for inactive
#set-window-option -g window-status-fg brightblue #base0
#set-window-option -g window-status-bg colour236 
#set-window-option -g window-status-attr dim

#set-window-option -g window-status-current-fg brightred #orange
#set-window-option -g window-status-current-bg colour236 
#set-window-option -g window-status-current-attr bright

# show host name and IP address on left side of status bar
#set -g status-left-length 85 
#set -g status-left "#[fg=green]: #h : #[fg=brightblue]#(dig +short myip.opendns.com @resolver1.opendns.com) #[fg=yellow]#(ifconfig en0 | grep 'inet ' | awk '{print \"en0 \" $2}') #(ifconfig en1 | grep 'inet ' | awk '{print \"en1 \" $2}') #(ifconfig en3 | grep 'inet ' | awk '{print \"en3 \" $2}') #[fg=red]#(ifconfig tun0 | grep 'inet ' | awk '{print \"vpn \" $2}') #[fg=green]#(/System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport -I | awk -F': ' '/ SSID/{print $2}') "

# show session name, window & pane number, date and time on right side of
# status bar
#set -g status-right-length 60
#set -g status-right "#[fg=blue]#S #I:#P #[fg=yellow]: %d %b %Y #[fg=green]: %l:%M %p : #(date -u | awk '{print $4}') :"