feat: single-owner game state, transactional lifecycle, durable money on server stop

1 files changed, 7 insertions, 6 deletions

diff --git a/internal/casino/manager_test.go b/internal/casino/manager_test.go
index 134798a..50cf114 100644
--- a/internal/casino/manager_test.go
+++ b/internal/casino/manager_test.go
@@ -6,9 +6,9 @@ type testWallet struct {
 	chips, credits, paid int
 }
 
-func (w *testWallet) Wager(amount int) (Wager, bool) {
+func (w *testWallet) Wager(amount int) (Wager, error) {
 	if w.chips+w.credits < amount {
-		return Wager{}, false
+		return Wager{}, ErrInsufficientFunds
 	}
 	chips := amount
 	if chips > w.chips {
@@ -17,17 +17,18 @@ func (w *testWallet) Wager(amount int) (Wager, bool) {
 	w.chips -= chips
 	credits := amount - chips
 	w.credits -= credits
-	return Wager{Total: amount, Chips: chips, Credits: credits}, true
+	return Wager{Total: amount, Chips: chips, Credits: credits}, nil
 }
 
-func (w *testWallet) PayCredits(amount int) {
+func (w *testWallet) PayCredits(amount int) error {
 	w.paid += amount
+	return nil
 }
 
 func TestMixedWagerUsesChipsFirst(t *testing.T) {
 	w := &testWallet{chips: 7, credits: 50}
-	wager, ok := w.Wager(12)
-	if !ok || wager.Chips != 7 || wager.Credits != 5 || w.chips != 0 || w.credits != 45 {
+	wager, err := w.Wager(12)
+	if err != nil || wager.Chips != 7 || wager.Credits != 5 || w.chips != 0 || w.credits != 45 {
 		t.Fatalf("unexpected wager: %+v wallet=%+v", wager, w)
 	}
 }