## Behavior ###############
# utf-8
set -g utf8 on
set -g status-utf8 on

# Zero-based indexing is fine in programming languages, but not so much in
# a multiplexer when zero is on the other side of the keyboard.
set -g base-index 1
set -g renumber-windows on
setw -g automatic-rename on

# address vim mode switching delay (http://superuser.com/a/252717/65504)
set -g escape-time 0

# tmux messages are displayed for 4 seconds
set -g display-time 2000

# Rather than constraining window size to the maximum size of any client
# connected to the *session*, constrain window size to the maximum size of any
# client connected to *that window*. Much more reasonable.
setw -g aggressive-resize off

# go zsh, go
set -g default-shell $SHELL

# a mouse
# setw -g mouse-utf8 on
setw -g mouse on

# fix mouse scrolling: enter copy mode on scroll-up, exits it when scrolled to bottom
bind -n WheelUpPane if-shell -F -t = "#{mouse_any_flag}" "send-keys -M" "if -Ft= '#{pane_in_mode}' 'send-keys -M' 'copy-mode -e'"

# set -g visual-activity off
setw -g monitor-activity on

# focus events enabled for terminals that support them
set -g focus-events on

# increase scrollback buffer size
set -g history-limit 10000

## Key bindings ###########
# Remap the key prefix
set -g prefix ^c
set -g prefix2 ^f
unbind C-b
# Restore sigterm C-c
bind C-c send-prefix
# set vi keys
setw -g mode-keys vi
unbind [
bind Escape copy-mode
unbind p
bind p paste-buffer
bind-key -t vi-copy 'v' begin-selection
bind-key -t vi-copy 'y' copy-pipe "reattach-to-user-namespace pbcopy"

unbind -t vi-copy Enter
bind-key -t vi-copy Enter copy-pipe "reattach-to-user-namespace pbcopy"

## Pane management #####
# Better splitting keybinds
unbind %
unbind '"'
bind s split-window -v
bind v split-window -h

# break pane into a window
bind = break-pane
bind - join-pane

# reload config without killing server
bind r source-file ~/.tmux.conf \; display-message "  Config reloaded..".
bind R refresh-client

# Smart pane switching with awareness of vim splits
# See: https://github.com/christoomey/vim-tmux-navigator
is_vim='echo "#{pane_current_command}" | grep -iqE "(^|\/)g?(view|n?vim?x?)(diff)?$"'
bind -n C-h if-shell "$is_vim" "send-keys C-h" "select-pane -L"
bind -n C-j if-shell "$is_vim" "send-keys C-j" "select-pane -D"
bind -n C-k if-shell "$is_vim" "send-keys C-k" "select-pane -U"
bind -n C-l if-shell "$is_vim" "send-keys C-l" "select-pane -R"
bind -n C-\ if-shell "$is_vim" "send-keys C-\\" "select-pane -l"
bind C-w last-pane
bind C-n next-window
bind C-p previous-window

bind -n C-1 select-window -t :1
bind -n C-2 select-window -t :2
bind -n C-3 select-window -t :3
bind -n C-4 select-window -t :4
bind -n C-5 select-window -t :5
bind -n C-6 select-window -t :6
bind -n C-7 select-window -t :7
bind -n C-8 select-window -t :8
bind -n C-9 select-window -t :9

# Pane resizing
bind C-h resize-pane -L 6
bind C-j resize-pane -D 6
bind C-k resize-pane -U 6
bind C-l resize-pane -R 6
bind -n M-h resize-pane -L 6
bind -n M-j resize-pane -D 6
bind -n M-k resize-pane -U 6
bind -n M-l resize-pane -R 6

# Swap panes directionally
bind H run '~/.dotfiles/tmux/swap-pane.rb left'
bind J run '~/.dotfiles/tmux/swap-pane.rb down'
bind K run '~/.dotfiles/tmux/swap-pane.rb up'
bind L run '~/.dotfiles/tmux/swap-pane.rb right'
bind M run '~/.dotfiles/tmux/swap-pane.rb master'

bind o resize-pane -Z
bind P run-shell '~/.dotfiles/tmux/select-pane.sh'
bind S choose-session
bind W choose-window
bind / choose-session
bind . choose-window

bind n run-shell 'TMUX= tmux new-session -t "$(basename \"$PWD\")" -d \; switch-client -t "$(basename \"$PWD\")"'
bind N run-shell 'TMUX= tmux new-session -t "$(tmux display-message -p #S)" -s "$(tmux display-message -p #S-clone)" -d \; switch-client -n \; display-message "session #S cloned"'

bind = select-layout tiled
bind | select-layout even-horizontal
bind _ select-layout even-vertical

# switch between sessions
bind -r [ switch-client -p
bind -r ] switch-client -n

# Disable confirmation
bind x kill-pane
bind X kill-window
bind q kill-session
bind Q kill-server

# quick view of processes
bind '~' split-window "exec top"

## Looks ########################
set -g set-titles on
set -g set-titles-string "tmux [#H] #S/#W/#T"

set -s default-terminal "xterm-256color"

setw -g window-status-fg colour245
setw -g window-status-bg colour237
setw -g window-status-current-fg yellow
setw -g window-status-current-bg black
setw -g window-status-activity-attr bold,blink
setw -g window-status-activity-bg colour236
setw -g window-status-activity-fg white

set -g pane-active-border-fg yellow
set -g pane-border-fg colour238

set -g status-bg colour237
set -g status-fg white
set -g status-interval 60
set -g status-justify left
set -g status-right-length 100
set -g status-left-length 80
set -g status-left '#[fg=white] #S #[fg=yellow]'
set -g status-right "#[fg=colour242]<#[fg=colour248]< #(tmux-mem-cpu-load -i 5) < #[fg=yellow]#(dig +short myip.opendns.com @208.67.222.222) #[bg=yellow]#[fg=black] #(hostname) "

set -g window-status-format " #I #W:#T "
set -g window-status-current-format " ⮀ #W:#T "