# Copyright 2014 Paul Hänsch
#
# This file is part of Confetti.
#
# Confetti is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Confetti is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Confetti. If not, see .
dtstart="$values[DTSTART]"
[ -z "$dtstart" ] && dtstart=$(date +%Y%m%dT%H%M%S)
echo "$dtstart" |case "$dtstart" in
*Z)
sed -rn 's:^([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2})([0-9]{2})([0-9]{2})Z$:\1-\2-\3 \4\:\5\:\6 UTC:p'
;;
TZID*)
sed -rn 's:^TZID=(.+)\:([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2})([0-9]{2})([0-9]{2})$:TZ="\1" \2-\3-\4 \5\:\6\:\7:p'
;;
*)
sed -rn 's:^([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2})([0-9]{2})([0-9]{2})$:\1-\2-\3 \4\:\5\:\6:p'
;;
esac |read dts_date
dts_year=$(date -d "$dts_date" +%Y)
dts_month=$(date -d "$dts_date" +%m)
dts_dom=$(date -d "$dts_date" +%d)
dts_dow=$(date -d "$dts_date" +%u)
dts_weekday=$(date -d "$dts_date" +%A)
dts_hour=$(date -d "$dts_date" +%H)
dts_min=$(date -d "$dts_date" +%M)
dts_sec=$(date -d "$dts_date" +%S)
rrule="$values[RRULE]"
rr_int="$(echo $rrule |sed -rn 's:^.*INTERVAL=([0-9]+)(;.*)?$:\1:p')"
rr_count="$(echo $rrule |sed -rn 's:^.*COUNT=([0-9]+)(;.*)?$:\1:p')"
rr_freq="$(echo $rrule |sed -rn 's:^.*FREQ=(YEARLY|MONTHLY|WEEKLY|DAILY)(;.*)?$:\1:p')"
rr_uyear="$(echo $rrule |sed -rn 's:^.*UNTIL=([0-9]{4})([0-9]{2})([0-9]{2})T[0-9]{6}Z(;.*)?$:\1:p')"
rr_umonth="$(echo $rrule |sed -rn 's:^.*UNTIL=([0-9]{4})([0-9]{2})([0-9]{2})T[0-9]{6}Z(;.*)?$:\2:p')"
rr_uday="$(echo $rrule |sed -rn 's:^.*UNTIL=([0-9]{4})([0-9]{2})([0-9]{2})T[0-9]{6}Z(;.*)?$:\3:p')"
rr_udate="$(echo $rrule |sed -rn 's:^.*UNTIL=([0-9]{4})([0-9]{2})([0-9]{2})T([0-9]{2})([0-9]{2})([0-9]{2})Z(;.*)?$:\1-\2-\3 \4\:\5\:\6:p')"
if [ -n "$rr_count" ]; then
rr_limit=COUNT
elif [ -n "$rr_uyear" ]; then
rr_limit=UNTIL
else
rr_limit=ETERN
fi
coursemail=""
echo '
'