Support any bill in any range.

app/Repositories/Bill/BillRepositoryInterface.php

@@ -1,13 +1,8 @@
 <?php
-/**
- * Created by PhpStorm.
- * User: sander
- * Date: 25/02/15
- * Time: 07:40
- */
 
 namespace FireflyIII\Repositories\Bill;
 
+use Carbon\Carbon;
 use FireflyIII\Models\Bill;
 use FireflyIII\Models\TransactionJournal;
 
@@ -25,6 +20,19 @@ interface BillRepositoryInterface {
      */
     public function nextExpectedMatch(Bill $bill);
 
+    /**
+     * Every bill repeats itself weekly, monthly or yearly (or whatever). This method takes a date-range (usually the view-range of Firefly itself)
+     * and returns date ranges that fall within the given range; those ranges are the bills expected. When a bill is due on the 14th of the month and
+     * you give 1st and the 31st of that month as argument, you'll get one response, matching the range of your bill.
+     *
+     * @param Bill $bill
+     * @param Carbon $start
+     * @param Carbon $end
+     *
+     * @return mixed
+     */
+    public function getRanges(Bill $bill, Carbon $start, Carbon $end);
+
     /**
      * @param array $data
      *