#! /bin/sh

role=$1; [ -n "$1" ] && shift
database=$1; [ -n "$1" ] && shift
erlbase=$1; [ -n "$1" ] && shift

# Set sane defaults.
[ -z "$database" ] && database=/var/db/catlfish-merge
[ -z "$erlbase" ] && erlbase=/usr/local/catlfish

case $role in
    frontend|storage|signing)
        $erlbase/bin/run_erl \
            /var/run/catlfish/ \
            /var/run/catlfish/erlang_log/ \
            "exec $erlbase/bin/erl -config catlfish"
        ;;
    merge)
        # Catlfish version is included in filename of archive and
        # filename in that archive. Example: lib/catlfish-0.6.0.ez
        # contains catlfish-0.6.0.
        ver=$(ls $erlbase/lib/catlfish-*.ez | sed 's/.*-\(.*\)\.ez/\1/1')
        ERL_LIBS=$erlbase/lib/catlfish-${ver}.ez/catlfish-${ver}
        ERL_LIBS=$ERL_LIBS:$erlbase/lib/lager-2.1.1.ez/lager-2.1.1
        export ERL_LIBS

        $erlbase/merge.sh 60 3600 $database > merge_log/stdout 2> merge_log/stderr
        ;;
    *)
        echo "catlfish: unknown role: $role"
        ;;
esac