refactor: remove dead code, consolidate save/error handling, add lint gate

3 files changed, 6 insertions, 4 deletions

diff --git a/internal/casino/blackjack.go b/internal/casino/blackjack.go
index d3b26af..bc038c7 100644
--- a/internal/casino/blackjack.go
+++ b/internal/casino/blackjack.go
@@ -1,3 +1,5 @@
+// Package casino implements the in-game casino: chip/credit wallets, table
+// games (blackjack, baccarat), slot machines, and their shared state machine.
 package casino
 
 import (
diff --git a/internal/casino/credits_test.go b/internal/casino/credits_test.go
index 4094d72..cff19c9 100644
--- a/internal/casino/credits_test.go
+++ b/internal/casino/credits_test.go
@@ -55,7 +55,7 @@ func TestWalletErrorMessages(t *testing.T) {
 }
 
 func inf() float64 {
-	var max float64 = 1e308
+	max := 1e308
 	return max * 10
 }
 func nan() float64 { return inf() - inf() }
diff --git a/internal/casino/machine.go b/internal/casino/machine.go
index f156fe7..757588b 100644
--- a/internal/casino/machine.go
+++ b/internal/casino/machine.go
@@ -79,7 +79,7 @@ func (m *Machine) setBet(name string, amount int, wallet Wallet) []Event {
 	if amount < m.Config.MinBet || amount > m.Config.MaxBet {
 		return m.private(fmt.Sprintf("Slot machine bets must be %s.", betRangeText(m.Config.MinBet, m.Config.MaxBet)))
 	}
-	return m.beginSpinLocked(name, amount, wallet,
+	return m.beginSpinLocked(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))
 }
@@ -99,12 +99,12 @@ func (m *Machine) start(name string, wallet Wallet) []Event {
 	if m.bet <= 0 {
 		return m.private("Set a wager first with 'bet <amount>'.")
 	}
-	return m.beginSpinLocked(name, m.bet, wallet,
+	return m.beginSpinLocked(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 {
+func (m *Machine) beginSpinLocked(amount int, wallet Wallet, publicMessage, privateMessage string) []Event {
 	if _, err := wallet.Wager(amount); err != nil {
 		return m.private(walletErrorMessage(err, "You don't have enough chips and credits for that bet."))
 	}