Added !poker and auth entry point

internal/chat/handler.go

@@ -91,6 +91,12 @@ func HandleMessage(client *twitch.Client, apiClient interface{}, message twitch.
 		return
 	}
 
+	// dispatch poker/table commands
+	if strings.HasPrefix(strings.ToLower(msg), "!poker") || strings.HasPrefix(strings.ToLower(msg), "!table") {
+		HandlePokerCommand(client, message, user, channel, msg)
+		return
+	}
+
 	// Dispatch custom/default commands
 	HandleCustomCommands(client, message, user, channel, botUsername)
 }

internal/chat/poker.go

@@ -0,0 +1,154 @@
+package chat
+
+import (
+	"fmt"
+	"math/rand"
+	"strconv"
+	"strings"
+	"time"
+
+	twitch "github.com/gempir/go-twitch-irc/v4"
+	"streambot_twitch/internal/points"
+)
+
+// card
+type Card struct {
+	Rank, Suit string
+}
+
+var (
+	suits = []string{" of Hearts", " of Diamnods", " of Clubs", " of Spades"}
+	ranks = []string{"2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"}
+	baseDeck []Card
+)
+
+func init() {
+	// build 2 decks (no Jokers) 104 cards
+	for d := 0; d < 2; d++ {
+		for _, s := range suits {
+			for _, r := range ranks {
+				baseDeck = append(baseDeck, Card{Rank: r, Suit: s})
+			}
+		}
+	}
+	rand.Seed(time.Now().UnixNano())
+}
+
+// impliment !poker or !table <bet>
+func HandlePokerCommand(
+	client *twitch.Client,
+	message twitch.PrivateMessage,
+	user twitch.User,
+	channel, msg string,
+) {
+	parts := strings.Fields(msg)
+	if len(parts) < 2 {
+		client.Say(channel, fmt.Sprintf("@%s Usage: !poker <bet>", user.DisplayName))
+		return
+	}
+	bet, err := strconv.Atoi(parts[1])
+	if err != nil || bet <= 0 {
+		client.Say(channel, fmt.Sprintf("@%s Invalid bet amount", user.DisplayName))
+		return
+	}
+
+	login := strings.ToLower(user.Name)
+	// load or init user points
+	balance := points.GetPoints(login)
+	if bet > ballance {
+		client.Say(channel, fmt.Sprintf("@%s You have %d points, bet lower", user.DisplayName, balance))
+		return
+	}
+	// Deduct the bet
+	balance, err = points.AddPoints(login, -bet)
+	if err != nil {
+		client.Say(channel, fmt.Sprintf("@%s Error updating points: %v", user.DisplayName, err))
+		return
+	}
+
+	// shuffle deck
+	deck := make([]Card, len(baseDeck))
+	copy(deck, baseDeck)
+	rand.Shuffle(len(deck), func(i, j int) {deck[i], deck[j] = deck[j], deck[i]})
+
+	// deal 2 cards each
+	player := []Card{deck[0], deck[1]}
+	dealer := []Card{deck[2], deck[3]}
+
+	// compute hand values
+	pv := handValue(player)
+	dv := handValue(dealer)
+
+	// Determine outcome and payout multiplier
+	var net int
+	var outcome string
+	switch {
+		case pv > 21:
+			outcome = "FBPenalty Bust! You lose"
+			net = 0
+		case pv == 21:
+			outcome = "BLACKJACK! GoatEmotey"
+			net = bet * 2
+		case dv > 21:
+			outcome = "GoldPLZ Dealer bust! You win"
+			net = int(float64(bet) * 1.5)
+		case pv > dv:
+			outcome = "OhMyDog You Win"
+			net int(float64(bet) * 1.3)
+		case pv < dv:
+			outcome = "cmonBruh You lose"
+			net = 0
+		default:
+			outcome = "PunchTrees Push"
+			net = bet
+	}
+
+	// Add winnings
+	balance, err = points.AddPoints(login, net)
+	if err != nil {
+		client.Say(channel, fmt.Sprintf("@%s Error updating Points: %v", user.DisplayName, err))
+		return
+	}
+
+	// format a hand for display
+	fmtHand := func(h []Card) string {
+		var parts []string
+		for _, c := range h {
+			parts = append(parts, c.Rank+c.Suit)
+		}
+		return strings.Join(parts, ",")
+	}
+
+	// post result
+	client.Say(channel, fmt.Sprintf("@%s You: [%s]=%d Dealer: [%s]=%d => %s | Bet: %d Net: %d Ballance: %d", user.DisplayName,
+		fmtHand(player), pv,
+		fmtHand(dealer), dv,
+		outcome,
+		bet, net, balance,
+	))
+}
+
+// compute BlackJack style value (A = 11 or 1)
+func handValue(hand []Card) int {
+	total := 0
+	aces := 0
+	for _, c := range hand {
+		switch c.Rank {
+			case "J", "Q", "K":
+				total += 10
+			case "A":
+				total += 11
+				aces++
+			default:
+				v, _ := strconv.Atoi(c.Rank)
+				total += v
+		}
+	}
+
+	// convert A from 11 to 1 while busting
+	for total > 21 && aces > 0 {
+		total -= 10
+		aces--
+	}
+	return total
+}