package casino

import (
	"math/rand"
	"testing"
)

func TestMachineFreeSpinsUseProfileCount(t *testing.T) {
	m := newMachine(1, MachineConfig{ID: "slots", Game: GameSlots}, rand.New(rand.NewSource(7)))
	m.profile.FreeSpinCount = 5
	m.player = &Participant{Name: "alice", Connected: true, Wallet: &testWallet{credits: 100}}
	m.spinBet = 10
	m.spin = &SlotSpin{ScatterCount: 3}
	events := m.finishSpin()
	if m.freeSpins != 4 {
		t.Fatalf("freeSpins=%d, want 4 remaining after the first of 5 chained spins", m.freeSpins)
	}
	if m.phase != machineSpinning {
		t.Fatalf("phase=%s, want spinning", m.phase)
	}
	if !hasMessage(events, "trigger 5 free spins") {
		t.Fatalf("missing profile-count free spin message: %+v", events)
	}
}

func TestMachineMenuEventCarriesStructuredMenu(t *testing.T) {
	m := newMachine(1, MachineConfig{ID: "slots", Game: GameSlots}, rand.New(rand.NewSource(7)))
	m.player = &Participant{Name: "alice", Connected: true}
	events := m.privateMenu("You sit down at the slot machine.")
	if len(events) != 1 || events[0].Menu == nil || events[0].Menu.Kind != MenuSlotCommands || len(events[0].Menu.Commands) == 0 {
		t.Fatalf("slot menu event=%+v", events)
	}
}

func TestMachineLeaveResetsPayoutRemainder(t *testing.T) {
	m := newMachine(1, MachineConfig{ID: "slots", Game: GameSlots}, rand.New(rand.NewSource(7)))
	m.player = &Participant{Name: "alice", Connected: true}
	m.bet = 10
	m.payoutRemainder = 0.5
	m.leave("alice")
	if m.payoutRemainder != 0 {
		t.Fatalf("payoutRemainder=%v leaked to the next player", m.payoutRemainder)
	}
}

func TestMachineLeaveStopsAutoBet(t *testing.T) {
	m := newMachine(1, MachineConfig{ID: "slots", Game: GameSlots}, rand.New(rand.NewSource(7)))
	m.player = &Participant{Name: "alice", Connected: true}
	m.autoBet, m.autoCountdown = true, 2
	m.leave("alice")
	if m.autoBet || m.autoCountdown != 0 {
		t.Fatalf("leave did not stop autobet: autoBet=%v countdown=%d", m.autoBet, m.autoCountdown)
	}
	if events := m.tick(); len(events) != 0 {
		t.Fatalf("empty machine with stale autobet emitted events: %+v", events)
	}
}

func TestMachineDisconnectFreesSeatAndForfeitsSpin(t *testing.T) {
	m := newMachine(1, MachineConfig{ID: "slots", Game: GameSlots, SpinTicks: 1}, rand.New(rand.NewSource(7)))
	w := &testWallet{credits: 100}
	m.player = &Participant{Name: "alice", Connected: true, Wallet: w}
	m.autoBet, m.autoCountdown = true, 2
	m.spin = &SlotSpin{}
	m.phase = machineSpinning
	m.bet = 20
	// Disconnect removes the player and discards the in-flight spin.
	events := m.markDisconnected("alice")
	if m.player != nil {
		t.Fatal("disconnect did not free the seat")
	}
	if m.spin != nil || m.phase != machineReady {
		t.Fatalf("in-flight spin was not discarded: spin=%v phase=%s", m.spin, m.phase)
	}
	if m.autoBet || m.autoCountdown != 0 {
		t.Fatalf("autobet not cleared: autoBet=%v countdown=%d", m.autoBet, m.autoCountdown)
	}
	if m.bet != 0 || m.payoutRemainder != 0 {
		t.Fatalf("wager state leaked: bet=%d remainder=%.2f", m.bet, m.payoutRemainder)
	}
	if len(events) == 0 || events[0].Type != EventLeft {
		t.Fatalf("no public stand-up event: %+v", events)
	}
	// The seatel is immediately available.
	m.join("bob")
	if m.player == nil || m.player.Name != "bob" {
		t.Fatalf("seat not available for the next player: player=%+v", m.player)
	}
	// The forfeited spin never pays out.
	if w.paid != 0 {
		t.Fatalf("forfeited spin paid credits: paid=%d", w.paid)
	}
	// The machine is idle after a disconnect.
	if events := m.tick(); len(events) != 0 {
		t.Fatalf("empty machine emitted events after disconnect: %+v", events)
	}
}