#!/usr/bin/env bash

function debug_msg {
	(>&2 echo "DEBUG: $1")
}

export CUR_SESSION_PREFIX="#[bg=colour1] "
export CUR_SESSION_SUFFIX=" #[bg=default]"

if [ -z "$1" ]; then
	# debug_msg 'No current session passed'
	export CUR_TMUX_SESSION="$(tmux display-message -p '#S')"
else
	export CUR_TMUX_SESSION="$1"
fi
# debug_msg "Current tmux session name: $CUR_TMUX_SESSION"

export TMUX_SESSION_LIST="$(tmux list-sessions | sed -ne 's/^\([^:]*\).*$/ \1 /p' | tr '\n' ' ' | xargs)"
# debug_msg "Running tmux sessions: $TMUX_SESSION_LIST"

HIGHLIGHT_CUR_SESSION="${TMUX_SESSION_LIST/$CUR_TMUX_SESSION/${CUR_SESSION_PREFIX}${CUR_TMUX_SESSION}${CUR_SESSION_SUFFIX}}"

ADD_END_SPACE_IF_NECESSARY=$(echo "$HIGHLIGHT_CUR_SESSION" | sed -e 's/\([^]]\)$/\ /p')
# debug_msg "Transformed tmux session list: -$ADD_END_SPACE_IF_NECESSARY-"

echo "$ADD_END_SPACE_IF_NECESSARY"