# Unicode powerline symbols used. Install nerd-fonts or sf-font repo.

# r: reload tmux config. Remove all bindings, load defaults & prune those.
bind-key r unbind-key -a \; source-file ~/.tmux/default-keys.conf \; source-file ~/.tmux.conf \; display-message 'Config reloaded.'
unbind-key -T prefix M-Up
unbind-key -T prefix M-Down
unbind-key -T prefix M-Left
unbind-key -T prefix M-Right
unbind-key -T prefix C-Up
unbind-key -T prefix C-Down
unbind-key -T prefix C-Left
unbind-key -T prefix C-Right
unbind-key -T prefix Up
unbind-key -T prefix Down
unbind-key -T prefix Left
unbind-key -T prefix Right
unbind-key '"'
unbind-key %

# T: pull tmux plugin manager from git and install.
bind-key T send-keys 'git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm; chmod go-rwx ~/.tmux' Enter

# General tmux settings.
# Remove DISPLAY so it is set on terminal reattach.
set-option -g update-environment "SSH_ASKPASS SSH_AUTH_SOCK SSH_AGENT_PID SSH_CONNECTION WINDOWID XAUTHORITY"
set-option -g default-shell '/bin/bash'
set -g history-limit 50000
set -g default-terminal 'xterm-256color'
set -g status-interval 15
set -g display-time 2000
# Fix explicit escape delay for vim (http://superuser.com/a/252717/65504)
set -sg escape-time 0

# | -: vertical and horizontal pane splitting.
bind-key | split-window -h
bind-key - split-window -v

# p+alt+arrow: panel resizing.
bind-key -r -T prefix M-Up resize-pane -U
bind-key -r -T prefix M-Down resize-pane -D
bind-key -r -T prefix M-Left resize-pane -L
bind-key -r -T prefix M-Right resize-pane -R

# alt+arrow: select panel.
bind-key -n M-Left select-pane -L
bind-key -n M-Right select-pane -R
bind-key -n M-Up select-pane -U
bind-key -n M-Down select-pane -D

# < >: move to window left or right.
bind-key -r '<' previous-window
bind-key -r '>' next-window

# Enable mouse (clickable windows, panes, resizable panes).
set -g mouse on

# don't rename windows automatically.
set-option -g automatic-rename off

# Turn of visual alarms.
set -g bell-action none
set -g visual-activity off
set -g visual-bell off
set -g visual-silence off
setw -g monitor-activity off

# Start windows at 1 instead of 0.
set -g base-index 1
set -g pane-base-index 1

# Theme
CL241='colour241'
CL239='colour239'
CL238='colour238'
CL237='colour237'
CL235='colour235'
CL222='colour222'
CL154='colour154'
CL121='colour121'
CL010='colour10'
CL009='colour9'

# Set custom sysstat display.
set -g @sysstat_mem_view_tmpl "#[fg=#{mem.color}]#{mem.used}#[bg=$CL237]/#{mem.total}"
set -g @sysstat_cpu_view_tmpl '#[fg=#{cpu.color}]#{cpu.pused}#[default]'
TEXT_1="#[fg=$CL010,bg=$CL241]"
SEP_1="#[fg=$CL241,bg=$CL239]"
TEXT_2="#[fg=$CL009,bg=$CL239]"
SEP_2="#[fg=$CL239,bg=$CL237]"
TEXT_3="#[fg=$CL235,bg=$CL237]"
SEP_3="#[fg=$CL237,bg=$CL235]"
HOST="$TEXT_1#H$SEP_1"
LOAD="$TEXT_2 #{sysstat_loadavg}$SEP_2"
CPU="$TEXT_3 #{sysstat_cpu}$SEP_3"
MEM="$SEP_3$TEXT_3#{sysstat_mem} "
DATE="$SEP_2$TEXT_2%Y-%m-%d "
CLOCK="$SEP_1$TEXT_1%R"

# Theme
set -g clock-mode-style 24
set -g message-command-fg "$CL222"
set -g message-command-bg "$CL238"
set -g status 'on'
set -g status-bg "$CL235"
set -g status-attr 'none'
set -g status-justify 'centre'
set -g status-left-attr 'none'
set -g status-left-length '100'
set -g status-left "$HOST$LOAD$CPU"
set -g status-right-attr 'none'
set -g status-right-length '100'
set -g status-right "$MEM$DATE$CLOCK"
set -g pane-border-fg "$CL238"
set -g pane-active-border-fg "$CL222"
set -g message-fg "$CL222"
set -g message-bg "$CL238"
setw -g window-status-fg "$CL121"
setw -g window-status-bg "$CL235"
setw -g window-status-attr 'none'
setw -g window-status-activity-fg "$CL154"
setw -g window-status-activity-bg "$CL235"
setw -g window-status-activity-attr 'none'
setw -g window-status-separator ''
# Pane scrollback indicator
set -g mode-style fg=$CL222,bg=$CL235
# Standard window indicator
setw -g window-status-format "#[fg=$CL121,bg=$CL235]#I|#W#[fg=$CL235,bg=$CL235]"
# Active window indicator
setw -g window-status-current-format "#[fg=$CL238,bg=$CL235]#[fg=$CL222,bg=$CL238]#{?window_zoomed_flag,,#I}|#W#[fg=$CL238,bg=$CL235]"

# Plugin managment; reload with: crtl-b, shift-I
set -g @plugin 'tmux-plugins/tpm'
set -g @plugin 'samoshkin/tmux-plugin-sysstat'
run '~/.tmux/plugins/tpm/tpm'