.tmux.conf

# DOCS: https://man7.org/linux/man-pages/man1/tmux.1.html

################
# GENERAL INFO #
################

# CURSOR STYLE
# reset cursor: printf '\033[0 q'
# block cursor: printf '\033[1 q'
# underline cursor: printf '\033[4 q'
# blinking underline cursor: printf '\033[5 q'
# vertical bar cursor: printf '\033[6 q'

# RUN applyt AND <LEADER> + <I> to initially set up

###########
# PLUGINS #
###########
set -g @plugin 'tmux-plugins/tpm'
# https://github.com/tmux-plugins/tmux-resurrect
# SAVE = <LEADER> + <CTRL> + <s>
# RESTORE = <LEADER> + <CTRL> + <r>
set -g @plugin 'tmux-plugins/tmux-resurrect'
# https://github.com/tmux-plugins/tmux-continuum
set -g @plugin 'tmux-plugins/tmux-continuum'

#################
# PLUGIN CONFIG #
#################

# set tmux save interval to 60 minutes
set -g @continuum-save-interval '60'

##########
# COLORS #
##########
set -g @purple "#3e0061"
set -g @pink "#f700e7"
set -g @teal "#66b2b2"
set -g @green "#239400"
set -g @yellow "#dbd400"
set -g @black "#000000"
set -g @light-black "#242424"
set -g @white "#FFFFFF"

###########
# GENERAL #
###########

# refresh status bar every n seconds
set -g status-interval 10

# Start windows and panes at 1, not 0
# you can't 1 index sessions. why? that's a great question.
# https://unix.stackexchange.com/questions/313577/how-to-make-tmux-sessions-count-from-1-instead-of-0
set -g base-index 1
setw -g pane-base-index 1

# for true color support
# https://gist.github.com/andersevenrud/015e61af2fd264371032763d4ed965b6
set -g default-terminal "tmux-256color"
set -ag terminal-overrides ",xterm-256color:RGB"

# mouse mode on. just in case i wanna use it. when it's off selection is weird.
set -g mouse on

# the duration to wait after an escape key press to see if it is part of a key sequence (milliseconds)
set-option -g escape-time 10

# detect focus in a pane
set -g focus-events on

# save more lines of history
set -g history-limit 10000

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

# set selection highlight style
set-option -g mode-style "bg=#{@white}","fg=#{@black}"

# use an underscore instead of a block when in copy mode
# this also makes it so that the first block of the selection is always highlighted, which for some reason "block" does not
# set-hook -g after-copy-mode 'set -p cursor-style underline'

###########
# KEYMAPS #
###########

# set ctrl+x to prefix/leader
unbind-key C-b            
set-option -g prefix C-x    
bind-key C-x send-prefix  

# <LEADER>i for session list
unbind s
# [s] only show sessions
# [Z] zoom the pane in to the full window
# [O] sort by field (index, name, time)
bind i choose-tree -swZ -O time 

# <LEADER>; for last session
bind-key \; switch-client -l

# <LEADER>q kill current window
bind q killw

# RESIZE PANES
# <LEADER>[arrow keys]
# units for up and down are less than left and right because of typical screen dimensions
bind -r Down resize-pane -D 10 
bind -r Up resize-pane -U 10
bind -r Left resize-pane -L 20
bind -r Right resize-pane -R 20

# navigate panes with h j k l (same as vim)
# <LEADER>[h | j | k | l]
bind h select-pane -L
bind j select-pane -D
bind k select-pane -U
bind l select-pane -R

# Split panes using | and -
# split into the same directory
# <LEADER>\
# <LEADER>-
bind \\ split-window -h -c "#{pane_current_path}"
bind - split-window -v -c "#{pane_current_path}"

# VIM COPY MODE
# enter copy mode: <LEADER>y
bind 'y' copy-mode
# exit copy mode with <ESC>
bind-key -T copy-mode-vi Escape send-keys -X cancel

# select line: v
# yank selection: y
bind-key -T copy-mode-vi v send-keys -X begin-selection
bind-key -T copy-mode-vi y send-keys -X copy-selection-and-cancel

##############
# STATUS BAR #
##############

# max length of side
set -g status-right-length 100
set -g status-style "bg=#{@purple},fg=#{@teal}"
# e.g. '84% • Monday May 27 • 4:34 PM'
set -g status-right "#(~/scripts/bash/battery.sh) • %A %B %-e • %-I:%M %p  "

# Show session name and window number on the bottom left
# max length of side
set -g status-left-length 100
set -g status-left " #S • #I/#{session_windows}"

###########
# WINDOWS #
###########

# renumbers windows when one is closed
set -g renumber-windows on

# disable default window status
set -g window-status-format ""
set -g window-status-current-format ""

# always open up new windows in the directory we are currently in
bind c new-window -c "#{pane_current_path}"

#########
# PANES #
#########

# PANE ACTIVE 
# borders 
set -g pane-active-border-style "fg=#{@yellow}"
# background color
set -g window-active-style "bg=#{@black}"

# PANE INACTIVE 
# borders
set -g pane-border-style "fg=#{@teal}"
# background color
set -g window-style "bg=#{@light-black}"

# added this as a failsafe since setting up tpm on new machines sometimes is buggy
setenv -g TMUX_PLUGIN_MANAGER_PATH "$HOME/.tmux/plugins/"
# must stay at bottom of file
# https://github.com/tmux-plugins/tpm
run -b '~/.tmux/plugins/tpm/tpm'