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path: root/internal/game/casino_test.go
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package game

import (
	"strings"
	"testing"

	"thehouseoficarus/internal/casino"
	"thehouseoficarus/internal/color"
	"thehouseoficarus/internal/net"
	"thehouseoficarus/internal/player"
)

type casinoTestConn struct {
	data []byte
}

func (c *casinoTestConn) ReadMessage() (string, error) { return "", nil }
func (c *casinoTestConn) Write(b []byte) (int, error) {
	c.data = append(c.data, b...)
	return len(b), nil
}
func (c *casinoTestConn) Close() error       { return nil }
func (c *casinoTestConn) SetEcho(bool) error { return nil }

func TestExecuteBetRejectsInvalidMachineArgs(t *testing.T) {
	g := &Game{Casino: casino.NewManager(1)}
	cfg := casino.MachineConfig{ID: "slots", Game: casino.GameSlots}
	g.Casino.JoinMachine(1, cfg, "alice")
	conn := &casinoTestConn{}
	sess := &net.Session{Player: player.New("alice"), Conn: conn}
	g.loggedInChars = map[string]*net.Session{"alice": sess}
	for _, args := range [][]string{{"banana"}, {"-5"}, {"10", "extra"}} {
		conn.data = nil
		g.executeBet(sess, args, "bet "+strings.Join(args, " "))
		if !strings.Contains(string(conn.data), "Use bet, bet <amount>, or bet max.") {
			t.Fatalf("bet %v: expected usage error, got %q", args, string(conn.data))
		}
	}
	// A bet amount at a machine sets the wager and immediately spins.
	conn.data = nil
	g.executeBet(sess, []string{"10"}, "bet 10")
	if !strings.Contains(string(conn.data), "You don't have enough chips and credits") {
		t.Fatalf("bet 10 should attempt an auto-spin and fail at the empty wallet, got %q", string(conn.data))
	}
	// Bet max with an empty wallet is rejected before any wager is attempted.
	conn.data = nil
	g.executeBet(sess, []string{"max"}, "bet max")
	if !strings.Contains(string(conn.data), "You don't have any chips or credits to bet.") {
		t.Fatalf("bet max with empty wallet: expected no-funds message, got %q", string(conn.data))
	}
}

func TestExecuteBetParsesBaccaratSpots(t *testing.T) {
	g := &Game{Casino: casino.NewManager(1)}
	cfg := casino.TableConfig{ID: "baccarat", Game: casino.GameBaccarat}
	g.Casino.Join(1, cfg, "alice")
	conn := &casinoTestConn{}
	sess := &net.Session{Player: player.New("alice"), Conn: conn}
	g.loggedInChars = map[string]*net.Session{"alice": sess}
	// Valid spot syntaxes reach the table and fail only at the (empty) wallet.
	for _, args := range [][]string{{"tie", "100"}, {"100", "tie"}, {"100", "on", "banker"}, {"banker", "100"}} {
		conn.data = nil
		g.executeBet(sess, args, "bet "+strings.Join(args, " "))
		if !strings.Contains(string(conn.data), "You don't have enough chips and credits") {
			t.Fatalf("bet %v: expected wallet failure, got %q", args, string(conn.data))
		}
	}
	// Invalid spots are rejected by the table.
	conn.data = nil
	g.executeBet(sess, []string{"red", "100"}, "bet red 100")
	if !strings.Contains(string(conn.data), "must be on player, banker, or tie") {
		t.Fatalf("bet red 100: expected spot rejection, got %q", string(conn.data))
	}
	// Two amounts or two spots are usage errors.
	for _, args := range [][]string{{"10", "20"}, {"player", "banker"}} {
		conn.data = nil
		g.executeBet(sess, args, "bet "+strings.Join(args, " "))
		if !strings.Contains(string(conn.data), "Use bet,") {
			t.Fatalf("bet %v: expected usage error, got %q", args, string(conn.data))
		}
	}
	// A bare first bet asks for a target (via the rebet path).
	conn.data = nil
	g.executeBet(sess, nil, "bet")
	if !strings.Contains(string(conn.data), "Bet on what?") {
		t.Fatalf("bare bet: expected target guidance, got %q", string(conn.data))
	}
}

func TestCasinoMenuRendersAlignedColoredCommands(t *testing.T) {
	g := &Game{Casino: casino.NewManager(1)}
	conn := &casinoTestConn{}
	sess := &net.Session{Player: player.New("alice"), Conn: conn}
	g.loggedInChars = map[string]*net.Session{"alice": sess}
	menu := &casino.MenuView{Kind: casino.MenuSlotCommands, Commands: []casino.MenuCommand{
		{Command: "bet <amount>", Desc: "Set your wager"},
		{Command: "spin", Desc: "Spin using your current wager"},
	}}
	msg := g.casinoPrivateMessage(sess, "casino_menu", menu, "Your slot machine bet is set to 10.")
	if !strings.Contains(msg, "You have 0 chips and 0 credits.") {
		t.Fatalf("missing balance line: %q", msg)
	}
	// Commands are painted with the "command" color (0A bold).
	if !strings.Contains(msg, "\033[1m\033[38;5;10mbet <amount>\033[0m") {
		t.Fatalf("command not colored: %q", msg)
	}
	// Shorter commands are right-padded to align the descriptions.
	if !strings.Contains(msg, "\033[1m\033[38;5;10mspin        \033[0m  Spin using your current wager") {
		t.Fatalf("commands not aligned: %q", msg)
	}
}

func TestRenderBaccaratSnapshot(t *testing.T) {
	snapshot := &casino.BaccaratSnapshot{
		Player:      []casino.CardView{{Rank: "5", Suit: "clubs"}, {Rank: "4", Suit: "hearts"}},
		Banker:      []casino.CardView{{Rank: "2", Suit: "spades"}, {Rank: "3", Suit: "diamonds"}},
		PlayerScore: "9",
		BankerScore: "5",
		Bets:        []casino.BaccaratBetView{{Name: "alice", Spot: "player", Amount: 100}},
	}
	plain := renderBaccaratSnapshot(snapshot, "none", false, 5, "dark", nil)
	if !strings.Contains(plain, "Player (9):") || !strings.Contains(plain, "Banker (5):") || !strings.Contains(plain, "alice bets 100 on player.") {
		t.Fatalf("unexpected baccarat render: %q", plain)
	}
	output := renderBaccaratSnapshot(snapshot, "xterm256", true, 7, "dark", nil)
	if !strings.Contains(output, "\033[38;5;") {
		t.Fatalf("expected colored baccarat art: %q", output)
	}
	// The light card style applies to baccarat hands too, with the half-block
	// edges oriented to touch the white body (▄ top, ▀ bottom).
	light := renderBaccaratSnapshot(snapshot, "none", true, 7, "light", nil)
	lightLines := strings.Split(light, "\n")
	if !strings.Contains(lightLines[1], "▄▄▄▄▄▄▄") || !strings.Contains(lightLines[7], "▀▀▀▀▀▀▀") {
		t.Fatalf("baccarat light card edges flipped: top=%q bottom=%q", lightLines[1], lightLines[7])
	}
	for _, line := range strings.Split(output, "\n") {
		if color.VisibleLen(line) > 80 {
			t.Fatalf("baccarat line exceeds console width: %d", color.VisibleLen(line))
		}
	}
}

func TestRenderSlotSnapshotColorsWordSymbols(t *testing.T) {
	snapshot := &casino.SlotSnapshot{StoppedReels: 1}
	snapshot.Grid[0][0] = "scatter"
	if !strings.Contains(renderSlotSnapshot(snapshot, "none", false), "scatter") {
		t.Fatal("expected word-based slot symbols")
	}
	output := renderSlotSnapshot(snapshot, "xterm256", true)
	if !strings.Contains(output, "\033[38;5;") {
		t.Fatalf("expected colored slot symbols, got %q", output)
	}
	for _, line := range strings.Split(output, "\n") {
		if color.VisibleLen(line) != 51 {
			t.Fatalf("line visible width = %d, want 51: %q", color.VisibleLen(line), line)
		}
	}
	if !strings.Contains(output, "┌") || !strings.Contains(output, "└") {
		t.Fatalf("slot output lacks the Unicode frame: %q", output)
	}
}

func TestRenderBlackjackSnapshotUsesCompactASCIIArt(t *testing.T) {
	snapshot := &casino.BlackjackSnapshot{
		Dealer:  []casino.CardView{{Rank: "?", Hidden: true}, {Rank: "K", Suit: "hearts"}},
		Players: []casino.BlackjackPlayerView{{Name: "alice", Score: "20", Cards: []casino.CardView{{Rank: "5", Suit: "clubs"}, {Rank: "Q", Suit: "spades"}}}},
	}
	plain := renderBlackjackSnapshot(snapshot, "none", false, 5, "dark", nil)
	if !strings.Contains(plain, "+---+") || !strings.Contains(plain, "Dealer:") || !strings.Contains(plain, "alice (20):") {
		t.Fatalf("unexpected blackjack art: %q", plain)
	}
	output := renderBlackjackSnapshot(snapshot, "xterm256", false, 5, "dark", nil)
	if !strings.Contains(output, "\033[38;5;") {
		t.Fatalf("expected colored blackjack art: %q", output)
	}
	if strings.ContainsAny(output, "│─┌┐└┘") {
		t.Fatalf("blackjack art contains Unicode borders: %q", output)
	}
	for _, line := range strings.Split(output, "\n") {
		if color.VisibleLen(line) > 80 {
			t.Fatalf("blackjack line exceeds console width: %d", color.VisibleLen(line))
		}
	}
	unicodeOutput := renderBlackjackSnapshot(snapshot, "none", true, 7, "dark", nil)
	if !strings.Contains(unicodeOutput, "│5    │") || !strings.Contains(unicodeOutput, "│    5│") || !strings.Contains(unicodeOutput, "│  ♣  │") {
		t.Fatalf("unexpected Unicode card alignment: %q", unicodeOutput)
	}
	coloredUnicode := renderBlackjackSnapshot(snapshot, "xterm256", true, 7, "dark", nil)
	if !strings.Contains(coloredUnicode, "\033[38;5;15m") || !strings.Contains(coloredUnicode, "\033[38;5;27m") {
		t.Fatalf("expected white borders and blue card art: %q", coloredUnicode)
	}
	light := renderBlackjackSnapshot(snapshot, "xterm256", true, 7, "light", nil)
	if !strings.Contains(light, "\033[48;5;15m") {
		t.Fatalf("expected white card background in light style: %q", light)
	}
	lightLines := strings.Split(light, "\n")
	if strings.Contains(lightLines[1], "\033[48;5;15m") || strings.Contains(lightLines[7], "\033[48;5;15m") {
		t.Fatalf("card edges should not have a background: %q", light)
	}
	lightPlain := renderBlackjackSnapshot(snapshot, "none", true, 7, "light", nil)
	if !strings.Contains(lightPlain, "▀▀▀▀▀▀▀") || !strings.Contains(lightPlain, "▄▄▄▄▄▄▄") {
		t.Fatalf("expected half-height light card edges: %q", lightPlain)
	}
	// The card edges must touch the white body: ▄ blocks on top, ▀ on bottom.
	plainLines := strings.Split(lightPlain, "\n")
	if !strings.Contains(plainLines[1], "▄▄▄▄▄▄▄") || !strings.Contains(plainLines[7], "▀▀▀▀▀▀▀") {
		t.Fatalf("light card edges flipped: top=%q bottom=%q", plainLines[1], plainLines[7])
	}
}