inital commit

plugin-sample-go/wasm/go.mod

@@ -0,0 +1,5 @@
+module plugin-sample-go/wasm
+
+go 1.21
+
+require github.com/vmihailenco/msgpack/v5 v5.4.1

plugin-sample-go/wasm/main.go

@@ -0,0 +1,76 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	"github.com/vmihailenco/msgpack/v5"
+)
+
+type Incoming struct {
+	Type    string      `msgpack:"type"`
+	Event   string      `msgpack:"event,omitempty"`
+	Payload interface{} `msgpack:"payload,omitempty"`
+}
+
+type Outgoing struct {
+	Type    string      `msgpack:"type"`
+	Event   string      `msgpack:"event,omitempty"`
+	Payload interface{} `msgpack:"payload,omitempty"`
+}
+
+type UiMessage struct {
+	Message string `msgpack:"message"`
+}
+
+type HostInfo struct {
+	ClientID string `msgpack:"clientId"`
+	OS       string `msgpack:"os"`
+	Arch     string `msgpack:"arch"`
+	Version  string `msgpack:"version"`
+}
+
+type InitPayload struct {
+	Host HostInfo `msgpack:"host"`
+}
+
+func main() {
+	dec := msgpack.NewDecoder(os.Stdin)
+	enc := msgpack.NewEncoder(os.Stdout)
+
+	for {
+		var msg Incoming
+		if err := dec.Decode(&msg); err != nil {
+			log.Printf("decode error: %v", err)
+			return
+		}
+
+		switch msg.Type {
+		case "init":
+			var init InitPayload
+			if payloadBytes, err := msgpack.Marshal(msg.Payload); err == nil {
+				_ = msgpack.Unmarshal(payloadBytes, &init)
+			}
+
+			osName := init.Host.OS
+			if osName == "" {
+				osName = "unknown"
+			}
+
+			if osName == "windows" {
+				log.Printf("[sample] windows detected - you can use WinAPI-specific flows")
+				_ = enc.Encode(Outgoing{Type: "event", Event: "ready", Payload: "sample plugin ready (windows detected)"})
+			} else {
+				log.Printf("[sample] non-windows host detected (%s)", osName)
+				_ = enc.Encode(Outgoing{Type: "event", Event: "ready", Payload: "sample plugin ready"})
+			}
+		case "event":
+			if msg.Event == "ui_message" {
+				payloadBytes, _ := msgpack.Marshal(msg.Payload)
+				var ui UiMessage
+				_ = msgpack.Unmarshal(payloadBytes, &ui)
+				_ = enc.Encode(Outgoing{Type: "event", Event: "echo", Payload: ui.Message})
+			}
+		}
+	}
+}