## Behavior ###############
# 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
# status bar
set-option -g status-utf8 on
# Remove the <C-a> delay
set -s escape-time 0
# 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-option -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'"

## Key bindings ###########
# Remap the key prefix
set -g prefix C-c
unbind C-b
# Restore sigterm C-c
bind C-c send-prefix
# Go to last active window
bind-key a last-window
# reload config without killing server
bind r source-file ~/.tmux.conf \; display-message "  Config reloaded..".
# 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 w break-pane

# 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 H resize-pane -L 5
bind J resize-pane -D 5
bind K resize-pane -U 5
bind L resize-pane -R 5

bind n next-window
bind p previous-window

# Disable confirmation
bind & kill-window
bind x kill-pane

# after copying to a tmux buffer, hit y again to copy to clipboard
bind y run "tmux save-buffer - | reattach-to-user-namespace pbcopy"
# quick view of processes
bind '~' split-window "exec top"

## Looks ########################
set -g default-terminal "screen-256color"

set -g status-bg colour235
set -g status-fg white

set-window-option -g window-status-current-fg black
set-window-option -g window-status-current-bg yellow

set -g pane-border-fg colour235
set -g pane-border-bg black
set -g pane-active-border-fg yellow
set -g pane-active-border-bg black

## Status bar ###################
set-option -g status-justify left
set-option -g status-right-length 60
set-option -g status-left-length 60
set-option -g status-left '#[bg=yellow] #[fg=black]#[bold]#S #[default] '
set-option -g status-right '#(hostname) '

set -g window-status-format "#I. #W"
set -g window-status-current-format " #I. #W "