#!/bin/bash

MAILDIR=~/Maildir
OPTS="--no-sync"
SALEARN=/usr/bin/vendor_perl/sa-learn

if [[ "$1" == "-q" ]]; then
    OPTS="$OPTS"
    OUTFILE="/dev/null"
else
    OPTS="$OPTS --showdots"
    OUTFILE="/dev/stdout"
fi

if [[ ! "$1" == "-q" ]]; then
    echo "$(date): Learning ham..."
fi
nice find $MAILDIR -type f | \
    perl -nl0e'chomp; ($ts) = /(\d{10})/; $now = time; print if m{/(new|cur)/} && !m{/(\.old|\.spam)/} && $ts > $now - 60*60*24*30' | \
    xargs -n1000 -0 $SALEARN $OPTS --ham > $OUTFILE

if [[ ! "$1" == "-q" ]]; then
    echo "$(date): Learning spam..."
fi
nice find $MAILDIR -type f | \
    perl -nl0e'chomp; ($ts) = /(\d{10})/; $now = time; print if m{/(new|cur)/} && m{/\.spam/} && $ts > $now - 60*60*24*30' | \
    xargs -n1000 -0 $SALEARN $OPTS --spam > $OUTFILE

if [[ ! "$1" == "-q" ]]; then
    echo "$(date): Syncing..."
fi
nice $SALEARN --sync > $OUTFILE

if [[ ! "$1" == "-q" ]]; then
    echo "$(date): Done!"
fi