refactor: python -> go

docs/creating-a-plugin.md

@@ -2,36 +2,61 @@
 
 ## Example
 
-This simple "Marco Polo" plugin will answer _Polo_ to the user that say _Marco_:
+This simple "Marco Polo" plugin will answer _Polo_ to the user that says _Marco_:
 
-``` python
-# mypackage/plugins.py
-from butterrobot.plugins import Plugin
-from butterrobot.objects import Message
+```go
+package myplugin
 
+import (
+	"strings"
 
-class PingPlugin(Plugin):
-    name = "Marco/Polo"
-    id = "test.marco"
+	"git.nakama.town/fmartingr/butterrobot/internal/model"
+	"git.nakama.town/fmartingr/butterrobot/internal/plugin"
+)
 
-    @classmethod
-    def on_message(cls, message, **kwargs):
-        if message.text == "Marco":
-            yield Message(
-                chat=message.chat, reply_to=message.id, text=f"polo",
-            )
-```
-
-``` python
-# setup.py
-# ...
-entrypoints = {
-    "test.marco" = "mypackage.plugins:MarcoPlugin"
+// MarcoPlugin is a simple Marco/Polo plugin
+type MarcoPlugin struct {
+	plugin.BasePlugin
 }
 
-setup(
-    # ...
-    entry_points=entrypoints,
-    # ...
-)
+// New creates a new MarcoPlugin instance
+func New() *MarcoPlugin {
+	return &MarcoPlugin{
+		BasePlugin: plugin.BasePlugin{
+			ID:   "test.marco",
+			Name: "Marco/Polo",
+			Help: "Responds to 'Marco' with 'Polo'",
+		},
+	}
+}
+
+// OnMessage handles incoming messages
+func (p *MarcoPlugin) OnMessage(msg *model.Message, config map[string]interface{}) []*model.Message {
+	if !strings.EqualFold(strings.TrimSpace(msg.Text), "Marco") {
+		return nil
+	}
+
+	response := &model.Message{
+		Text:     "Polo",
+		Chat:     msg.Chat,
+		ReplyTo:  msg.ID,
+		Channel:  msg.Channel,
+	}
+
+	return []*model.Message{response}
+}
+```
+
+To use the plugin, register it in your application:
+
+```go
+// In app.go or similar initialization file
+func (a *App) Run() error {
+    // ...
+
+    // Register plugins
+    plugin.Register(myplugin.New())
+
+    // ...
+}
 ```