#!/bin/bash


function mark_read {
    if echo "$1"|grep -q 'RS$'; then
        # do nothing
        true;
    elif echo "$1"|grep -q 'S$'; then
        mv "${1}" "${1%%S}RS";
    else
	    mv "${1}" "${1}RS";
	    if echo "$1"|grep -q 'new/'; then
	        rename 's{new/}{cur/}' "${1}RS";
	    elif echo "$1"|grep -q 'cur' || pwd|egrep -q 'cur/?$'; then
            # do nothing
            true;
        else
	        mv "${1}RS" ../cur/"${1}RS";
	    fi;
    fi;
}

#set -x;
set -e;
for a in "$@"; do
	RETURN_PATH=$(awk -F': ' '/^Return-Path:/{print $2}' "$a")
	SUBJECT=$(awk -F': ' '/^Subject:/{print $2}' "$a")
	KEY=9D05D0BE
    if egrep -q '^Subject: Log.+successful' "$a"; then
	    TEMPDIR=$(mktemp -d)
	    cp "$a" "$TEMPDIR/reply"
	    buildd_script "$TEMPDIR/reply"
	    gpg --no-verbose --batch --quiet --default-key $KEY  --armor --output $TEMPDIR/reply.signed --clearsign $TEMPDIR/reply >/dev/null 2>&1
	    mutt -e 'set content_type="text/plain; charset=utf-8; x-action=pgp-signed"' -s "Re: $SUBJECT" "$RETURN_PATH" < $TEMPDIR/reply.signed
	    rm -f $TEMPDIR/reply $TEMPDIR/reply.signed
	    rmdir $TEMPDIR
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a" &&
        egrep -q "ERROR: a 'NAMESPACE' file is required" "$a"; then
        echo 'fail no namespace'| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Should I build' "$a"; then
        echo 'ok'| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a" &&
        egrep -q "ERROR: dependency .* is not available for package .*" "$a"; then
        (echo -n 'fail '; egrep "ERROR: dependency .* is not available for package .*" "$a")| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a" &&
        egrep -q "ERROR: compilation failed for package .*" "$a"; then
        (echo -n 'fail '; grep "error|fail" "$a"|sed 's/\n//g')| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a" &&
        egrep -q "ERROR: configuration failed for package .*" "$a"; then
        (echo -n 'fail '; grep "error|fail" "$a"|sed 's/\n//g')| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a" &&
        (egrep -q "Error *: package .* was found, but .* is required" "$a" || 
         egrep -q "Error *: package .* was built before R" "$a"
        ); then
        echo 'give back'| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    elif egrep -q '^Subject: Log.+attempted' "$a"; then
        echo "Unsure about '$SUBJECT'; giving back";
        tail -n 30 "$a";
        echo 'give back'| \
            mutt -e 'set content_type="text/plain; charset=utf-8"' -s "Re: $SUBJECT" "$RETURN_PATH";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    else
        echo "Marking '$SUBJECT' read";
	    mark_read "${a}";
	    echo "Handled '${SUBJECT}'";
    fi;
done;