fix: blackjack game formatting

5 files changed, 48 insertions, 14 deletions

diff --git a/internal/casino/blackjack.go b/internal/casino/blackjack.go
index 80a4d15..ff334c9 100644
--- a/internal/casino/blackjack.go
+++ b/internal/casino/blackjack.go
@@ -399,7 +399,7 @@ func (t *blackjackTable) startRound() []Event {
 			p.declinedInsurance = true
 		}
 	}
-	roundEvent := t.event("New blackjack hand!", true)
+	roundEvent := t.event("", true)
 	roundEvent.Blackjack = t.snapshot(false)
 	events := []Event{roundEvent}
 	if t.dealer.cards[1].rank == "A" {
@@ -528,7 +528,7 @@ func (t *blackjackTable) settle() []Event {
 		t.dealer.cards = append(t.dealer.cards, t.shoe.draw())
 	}
 	dealerTotal, _ := t.dealer.total()
-	dealerEvent := t.event("Dealer's hand:", true)
+	dealerEvent := t.event("", true)
 	dealerEvent.Blackjack = t.snapshot(true)
 	events := []Event{dealerEvent}
 	dealerBlackjack := t.dealerBlackjack()
@@ -662,7 +662,7 @@ func (t *blackjackTable) menu() string {
 
 func handScore(hand *blackjackHand) string {
 	total, soft := hand.total()
-	if !soft {
+	if !soft || total == 21 {
 		return fmt.Sprintf("%d", total)
 	}
 	return fmt.Sprintf("%d or %d", total-10, total)
diff --git a/internal/casino/blackjack_test.go b/internal/casino/blackjack_test.go
index f1bef99..89b5d06 100644
--- a/internal/casino/blackjack_test.go
+++ b/internal/casino/blackjack_test.go
@@ -19,6 +19,18 @@ func TestBlackjackHandTreatsAceAsElevenWhenPossible(t *testing.T) {
 	}
 }
 
+func TestBlackjackHandScoreShowsBlackjackAs21(t *testing.T) {
+	if got := handScore(&blackjackHand{cards: []card{{rank: "A"}, {rank: "K"}}}); got != "21" {
+		t.Fatalf("blackjack score=%q, want 21", got)
+	}
+	if got := handScore(&blackjackHand{cards: []card{{rank: "A"}, {rank: "6"}}}); got != "7 or 17" {
+		t.Fatalf("soft 17 score=%q, want 7 or 17", got)
+	}
+	if got := handScore(&blackjackHand{cards: []card{{rank: "10"}, {rank: "8"}}}); got != "18" {
+		t.Fatalf("hard 18 score=%q, want 18", got)
+	}
+}
+
 func TestBlackjackSettlementRules(t *testing.T) {
 	rules := (BlackjackConfig{}).Normalize()
 	natural := &blackjackHand{bet: 10, cards: []card{{rank: "A"}, {rank: "K"}}}
@@ -46,7 +58,7 @@ func TestBlackjackTableStartsAfterAllPlayersBet(t *testing.T) {
 		t.Fatal("round started before all players bet")
 	}
 	events := table.bet("bob", "", 10, wb)
-	if !hasMessage(events, "New blackjack hand") {
+	if !hasSnapshot(events) {
 		t.Fatalf("round did not start after all players bet: %+v", events)
 	}
 }
@@ -197,7 +209,7 @@ func TestBlackjackBettingIgnoresDisconnected(t *testing.T) {
 	table.markDisconnected("bob")
 	w := &testWallet{credits: 100}
 	events := table.bet("alice", "", 10, w)
-	if !hasMessage(events, "New blackjack hand") {
+	if !hasSnapshot(events) {
 		t.Fatalf("disconnected player stalled the round: %+v", events)
 	}
 }
@@ -226,6 +238,15 @@ func hasMessage(events []Event, fragment string) bool {
 	return false
 }
 
+func hasSnapshot(events []Event) bool {
+	for _, event := range events {
+		if event.Blackjack != nil {
+			return true
+		}
+	}
+	return false
+}
+
 func contains(value, fragment string) bool {
 	return strings.Contains(value, fragment)
 }
diff --git a/internal/casino/machine.go b/internal/casino/machine.go
index 887e154..0ee4cde 100644
--- a/internal/casino/machine.go
+++ b/internal/casino/machine.go
@@ -64,7 +64,7 @@ func (m *Machine) join(name string) []Event {
 	return m.menuEvents("You resume your place at the slot machine.")
 }
 
-func (m *Machine) setBet(name string, amount int) []Event {
+func (m *Machine) setBet(name string, amount int, wallet Wallet) []Event {
 	m.mu.Lock()
 	defer m.mu.Unlock()
 	if !m.owns(name) {
@@ -79,8 +79,9 @@ func (m *Machine) setBet(name string, amount int) []Event {
 	if amount < m.Config.MinBet || amount > m.Config.MaxBet {
 		return m.private(fmt.Sprintf("Slot machine bets must be between %d and %d.", m.Config.MinBet, m.Config.MaxBet))
 	}
-	m.bet = amount
-	return m.menuEvents(fmt.Sprintf("Your slot machine bet is set to %d.", amount))
+	return m.beginSpinLocked(name, amount, wallet,
+		fmt.Sprintf("%s sets the bet to %d and pulls the lever.", name, amount),
+		fmt.Sprintf("Bet set to %d. You pull the lever on the slots machine.", amount))
 }
 
 func (m *Machine) start(name string, wallet Wallet) []Event {
@@ -98,15 +99,22 @@ func (m *Machine) start(name string, wallet Wallet) []Event {
 	if m.bet <= 0 {
 		return m.private("Set a wager first with 'bet <amount>'.")
 	}
-	if _, ok := wallet.Wager(m.bet); !ok {
+	return m.beginSpinLocked(name, m.bet, wallet,
+		fmt.Sprintf("%s pulls the lever on the slots machine.", name),
+		"You pull the lever on the slots machine.")
+}
+
+func (m *Machine) beginSpinLocked(name string, amount int, wallet Wallet, publicMessage, privateMessage string) []Event {
+	if _, ok := wallet.Wager(amount); !ok {
 		return m.private("You don't have enough chips and credits for that bet.")
 	}
-	m.spinBet = m.bet
+	m.bet = amount
+	m.spinBet = amount
 	m.player.Wallet = wallet
 	m.spin = generateSlotSpinWithProfile(m.rng, m.spinBet, m.profile)
 	m.reel, m.clock, m.suspense = 0, 0, false
 	m.phase = machineSpinning
-	return m.playerAction(fmt.Sprintf("%s pulls the lever on the slots machine.", name), "You pull the lever on the slots machine.")
+	return m.playerAction(publicMessage, privateMessage)
 }
 
 func (m *Machine) enableAutoBet(name string, wallet Wallet) []Event {
diff --git a/internal/casino/manager.go b/internal/casino/manager.go
index c876226..60bf14d 100644
--- a/internal/casino/manager.go
+++ b/internal/casino/manager.go
@@ -97,14 +97,14 @@ func (m *Manager) JoinMachine(roomID int, cfg MachineConfig, name string) []Even
 	return m.EnsureMachine(roomID, cfg).join(name)
 }
 
-func (m *Manager) SetMachineBet(roomID int, machineID, name string, amount int) []Event {
+func (m *Manager) SetMachineBet(roomID int, machineID, name string, amount int, wallet Wallet) []Event {
 	m.mu.Lock()
 	machine := m.machines[tableKey(roomID, machineID)]
 	m.mu.Unlock()
 	if machine == nil {
 		return nil
 	}
-	return machine.setBet(name, amount)
+	return machine.setBet(name, amount, wallet)
 }
 
 func (m *Manager) StartMachine(roomID int, machineID, name string, wallet Wallet) []Event {
diff --git a/internal/casino/manager_test.go b/internal/casino/manager_test.go
index f0809be..818f397 100644
--- a/internal/casino/manager_test.go
+++ b/internal/casino/manager_test.go
@@ -87,8 +87,13 @@ func TestMachineAutobetCountdownAndStop(t *testing.T) {
 	m := NewManager(1)
 	cfg := MachineConfig{ID: "slots", Game: GameSlots, SpinTicks: 1}
 	m.JoinMachine(1, cfg, "alice")
-	m.SetMachineBet(1, "slots", "alice", 10)
 	w := &testWallet{credits: 100}
+	if events := m.SetMachineBet(1, "slots", "alice", 10, w); len(events) == 0 {
+		t.Fatalf("setting a bet did not start a spin: %+v", events)
+	}
+	for m.MachineBusy("alice") {
+		m.Tick()
+	}
 	if events := m.EnableMachineAutoBet(1, "slots", "alice", w); len(events) != 0 {
 		t.Fatalf("enabling autobet emitted events before countdown: %+v", events)
 	}