All code for issue #38.

app/lib/FireflyIII/Database/Bill/BillInterface.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace FireflyIII\Database\Bill;
+
+use Carbon\Carbon;
+
+/**
+ * Interface BillInterface
+ *
+ * @package FireflyIII\Database
+ */
+interface BillInterface
+{
+    /**
+     * @param \Bill  $bill
+     * @param Carbon $start
+     * @param Carbon $end
+     *
+     * @return null|\TransactionJournal
+     * @internal param Carbon $current
+     * @internal param Carbon $currentEnd
+     *
+     */
+    public function getJournalForBillInRange(\Bill $bill, Carbon $start, Carbon $end);
+
+    /**
+     * @param \Bill               $bill
+     * @param \TransactionJournal $journal
+     *
+     * @return bool
+     */
+    public function scan(\Bill $bill, \TransactionJournal $journal);
+
+    /**
+     * @param \Bill $bill
+     *
+     * @return bool
+     */
+    public function scanEverything(\Bill $bill);
+
+}