#!/bin/sh
set -e

: "${FSR_GEN_SSH_TO:=fsmi-login.fsmi.uni-karlsruhe.de}"
: "${FSR_GEN_SSH:=$(test "$(hostname -d)" = "fsmi.uni-karlsruhe.de" || echo 1)}"

sql() {
	# $1: select
	# $2: order_by
	select="$1"
	order_by="$2"
	printf "
	SELECT %s FROM protokolle
	WHERE ist_veroeffentlicht=false AND name IS NULL
	ORDER BY %s
	" "$select" "$order_by" | tr '\n' ' '
}

cmd="psql --no-align --tuples-only service=fsmi -c"
cmd_raw="$cmd '$(sql "datum" "datum ASC")'"
cmd_last="$cmd '$(sql "protokoll" "datum DESC LIMIT 1")'"

if [ -z "$FSR_GEN_SSH" ] || [ "$FSR_GEN_SSH" -eq 0 ]; then
	raw_proto="$(sh -c "$cmd_raw")"
	sh -c "$cmd_last" >data/last_proto
else
	raw_proto="$(ssh -- "$FSR_GEN_SSH_TO" "$cmd_raw")"
	ssh -- "$FSR_GEN_SSH_TO" "$cmd_last" >data/last_proto
fi

for proto in $raw_proto; do
    echo "* FSR-Protokoll vom $proto"
done > data/uvproto.txt
echo "$proto" > data/last_date

grep -oP '(?<=nächste Redeleitung: ).*(?=</li>)' data/last_proto > data/redeleitung
grep -oP '(?<=nächstes Protokoll: ).*(?=</li>)' data/last_proto > data/protokoll