#!/bin/sh

# Adds a line to $sdepdata/once. It is possible to specify a date, which will be
# read by date -d and prepended to the input text.
# -d is a non-portable option of GNU date. On some other systems one can
# accomplish the same with the -j option.

# Usage: sdep-add [date]
# Example: sdep-add "next monday"

sdepdata="${XDG_DATA_HOME:-$HOME/.local/}/sdep"

file="$sdepdata/once"
date=""

[ -n "$1" ] && date=$(date -d "$1" +%Y-%m-%d)

[ -n "$date" ] && printf "$date "

read text

if [ -n "$text" ]; then
	printf "${date}\t${text}\n" >> "$file"
else
	echo "Event not saved"
fi