#!/usr/bin/env bash

ANY_SESSION_PREFIX="#[bg=colour18]#[fg=colour7]"
CUR_SESSION_PREFIX="#[bg=colour4]#[fg=colour0]"
ANY_SESSION_SUFFIX="#[bg=default]#[fg=default] "
CUR_SESSION_SUFFIX="${ANY_SESSION_SUFFIX}"

CUR_TMUX_SESSION="$1"
if [ -z "$1" ]; then
	CUR_TMUX_SESSION="$(tmux display-message -p '#S')"
fi
export CUR_TMUX_SESSION

TMUX_SESSION_LIST="$(tmux list-sessions | awk \
	-v cursesh="${CUR_TMUX_SESSION}" \
	-v aspre="${ANY_SESSION_PREFIX}" \
	-v assuf="${ANY_SESSION_SUFFIX}" \
	-v cspre="${CUR_SESSION_PREFIX}" \
	-v cssuf="${CUR_SESSION_SUFFIX}" \
'{
s=substr($1,0,length($1)-1);
if(s==cursesh){
	s=cspre" "s" "cssuf
}else{
	s=aspre" "s" "assuf
}printf s
}')"

echo "${TMUX_SESSION_LIST}"