refactor(stats): use maildir message adapter for scans

Author: jaromil

src/zlibs/stats

@@ -132,9 +132,7 @@ EOF
     act "gathering timestamps..."
     for m in ${maildirs}; do
 	func "  ${m}"
-	rm -rf $TMPDIR/weekstats.db.mdir
-	cp -r $MAILDIRS/${m} $TMPDIR/weekstats.db.mdir
-	for f in `${=find} $TMPDIR/weekstats.db.mdir -type f`; do
+	for f in ${(f)"$(maildir_list_messages "$MAILDIRS/$m")"}; do
 	    timestamp=`fetchdate ${f} "%Y-%U"`
 	    mdir="${m[(ws:.:)1]}"
 	    cat <<EOF | ${SQL} -batch $db > $sql
@@ -233,7 +231,7 @@ EOF
 	return 1 }
 
     for m in ${maildirs}; do
-	for f in `${=find} $MAILDIRS/${m} -type f`; do
+	for f in ${(f)"$(maildir_list_messages "$MAILDIRS/$m")"}; do
 	    timestamp=`fetchdate ${f} "%Y-%m-%d"`
 	    cat <<EOF | ${SQL} -batch $TMPDIR/timecloud.db.$id > $TMPDIR/timecloud.select.$id
 SELECT * FROM stats