gojs: add gojs runtime and task type

Author: progrium

Dockerfile

@@ -37,6 +37,11 @@ RUN esbuild wasi/mod.ts \
     --bundle \
     --external:util \
     --format=esm
+RUN esbuild gojs/mod.ts \
+    --outfile=gojs/worker/lib.js \
+    --bundle \
+    --external:util \
+    --format=esm
 
 FROM tinygo/tinygo:0.39.0 AS wasm-tinygo
 WORKDIR /build

Makefile

@@ -79,6 +79,7 @@ js:
 	$(DOCKER_CMD) rm -f wanix-build-js
 	$(DOCKER_CMD) create --name wanix-build-js wanix-build-js
 	$(DOCKER_CMD) cp wanix-build-js:/build/runtime/wasi/worker/lib.js runtime/wasi/worker/lib.js
+	$(DOCKER_CMD) cp wanix-build-js:/build/runtime/gojs/worker/lib.js runtime/gojs/worker/lib.js
 	$(DOCKER_CMD) cp wanix-build-js:/build/runtime/assets/wanix.min.js runtime/assets/wanix.min.js
 	$(DOCKER_CMD) cp wanix-build-js:/build/runtime/assets/wanix.js runtime/assets/wanix.js
 	$(DOCKER_CMD) cp wanix-build-js:/build/runtime/assets/wanix.handle.js runtime/assets/wanix.handle.js

runtime/gojs/mod.ts

@@ -0,0 +1 @@
+export { WanixHandle } from "../handle.js";

runtime/gojs/worker/embed.go

@@ -0,0 +1,31 @@
+//go:build js && wasm
+
+package worker
+
+import (
+	"embed"
+	"encoding/base64"
+	"fmt"
+	"io/fs"
+	"strings"
+	"syscall/js"
+)
+
+//go:embed lib.js worker.js
+var Dir embed.FS
+
+func BlobURL() string {
+	lib, err := fs.ReadFile(Dir, "lib.js")
+	if err != nil {
+		panic(err)
+	}
+	worker, err := fs.ReadFile(Dir, "worker.js")
+	if err != nil {
+		panic(err)
+	}
+	libImport := fmt.Sprintf("data:text/javascript;base64,%s", base64.StdEncoding.EncodeToString(lib))
+	workerSrc := strings.Replace(string(worker), "./lib.js", libImport, 1)
+	blob := js.Global().Get("Blob").New(js.ValueOf([]any{workerSrc}), js.ValueOf(map[string]any{"type": "text/javascript"}))
+	url := js.Global().Get("URL").Call("createObjectURL", blob)
+	return url.String()
+}