#!/bin/bash

if [ -z "$1" -o ! -d "$1" ]; then
    echo "Usage: $0 <top-directory> [<days ago>]" 1>&2
    exit 1
fi

top="${1}"
shift

source "${top}/etc/settings.sh"
tmp="$(mktemp -d)"
cd "${tmp}"

browser="Mozilla/4.06 [en] (X11; I; Linux 2.0.35 i586)"
date="$(date -d"$daysago days ago" +%y%m%d)"
imgname="${date}.jpg"
nomen="http://static.nichtlustig.de/comics/full/${imgname}"
newn="${day}.jpg"

echo "Dateiname: $imgname"
echo
echo "Hole nichtlustig von $nomen"
echo "fuer Datum: $(date -d"$daysago days ago" -I)"
echo
wget ${wget_args} --header="Referer: http://static.nichtlustig.de/toondb/${date}.html" \
    --user-agent="$browser" "$nomen"

if [ -s "${tmp}/${imgname}" ]; then
    mv "${tmp}/${imgname}" "${image_dir}/$newn"
    rm -f "${comic_dir}/latest.jpg"
    ln -s "${image_offset}/$newn" "${comic_dir}/latest.jpg"
fi

rm -rf "${tmp}"