refactor: python -> go

internal/plugin/fun/coin.go

@@ -0,0 +1,50 @@
+package fun
+
+import (
+	"math/rand"
+	"strings"
+	"time"
+
+	"git.nakama.town/fmartingr/butterrobot/internal/model"
+	"git.nakama.town/fmartingr/butterrobot/internal/plugin"
+)
+
+// CoinPlugin flips a coin
+type CoinPlugin struct {
+	plugin.BasePlugin
+	rand *rand.Rand
+}
+
+// NewCoin creates a new CoinPlugin instance
+func NewCoin() *CoinPlugin {
+	source := rand.NewSource(time.Now().UnixNano())
+	return &CoinPlugin{
+		BasePlugin: plugin.BasePlugin{
+			ID:   "fun.coin",
+			Name: "Coin Flip",
+			Help: "Flips a coin when you type 'flip a coin'",
+		},
+		rand: rand.New(source),
+	}
+}
+
+// OnMessage handles incoming messages
+func (p *CoinPlugin) OnMessage(msg *model.Message, config map[string]interface{}) []*model.Message {
+	if !strings.Contains(strings.ToLower(msg.Text), "flip a coin") {
+		return nil
+	}
+
+	result := "Heads"
+	if p.rand.Intn(2) == 0 {
+		result = "Tails"
+	}
+
+	response := &model.Message{
+		Text:    result,
+		Chat:    msg.Chat,
+		ReplyTo: msg.ID,
+		Channel: msg.Channel,
+	}
+
+	return []*model.Message{response}
+}