按顺序结算多笔现金应收

crates/fidc-core/src/portfolio.rs

@@ -778,25 +778,23 @@ impl PortfolioState {
         Ok(())
     }
 
-    pub fn settle_cash_receivables(&mut self, date: NaiveDate) -> Vec<CashReceivable> {
-        let mut settled = Vec::new();
+    pub fn take_due_cash_receivables(&mut self, date: NaiveDate) -> Vec<CashReceivable> {
+        let mut due = Vec::new();
         let mut pending = Vec::new();
         for receivable in self.cash_receivables.drain(..) {
             if receivable.payable_date <= date {
-                let amount = Self::fixed_money(receivable.amount, "cash receivable")
-                    .expect("cash receivable must be finite fixed-point money");
-                self.cash = self
-                    .cash
-                    .checked_add(amount)
-                    .expect("fixed-point cash overflow while settling receivable");
-                settled.push(receivable);
+                due.push(receivable);
             } else {
                 pending.push(receivable);
             }
         }
         self.cash_receivables = pending;
         self.refresh_dividend_receivables();
-        settled
+        due
+    }
+
+    pub fn settle_cash_receivable(&mut self, receivable: &CashReceivable) -> Result<(), String> {
+        self.apply_cash_delta(receivable.amount)
     }
 
     pub fn cash_receivables(&self) -> &[CashReceivable] {