refactor(httpapi): fork server startup by flag (#24799)

packages/opencode/src/cli/cmd/generate.ts

@@ -1,15 +1,26 @@
 import { Server } from "../../server/server"
+import { PublicApi } from "../../server/routes/instance/httpapi/public"
 import type { CommandModule } from "yargs"
+import { OpenApi } from "effect/unstable/httpapi"
+
+type Args = {
+  httpapi: boolean
+}
 
 export const GenerateCommand = {
   command: "generate",
-  handler: async () => {
-    const specs = await Server.openapi()
+  builder: (yargs) =>
+    yargs.option("httpapi", {
+      type: "boolean",
+      default: false,
+      description: "Generate OpenAPI from the experimental Effect HttpApi contract",
+    }),
+  handler: async (args) => {
+    const specs = args.httpapi ? OpenApi.fromApi(PublicApi) : await Server.openapi()
     for (const item of Object.values(specs.paths)) {
       for (const method of ["get", "post", "put", "delete", "patch"] as const) {
         const operation = item[method]
         if (!operation?.operationId) continue
-        // @ts-expect-error
         operation["x-codeSamples"] = [
           {
             lang: "js",
@@ -47,4 +58,4 @@ export const GenerateCommand = {
       })
     })
   },
-} satisfies CommandModule
+} satisfies CommandModule<object, Args>