feat: add server link sharing

packages/server/src/server-info.ts

@@ -0,0 +1,32 @@
+import { Context, Layer } from "effect"
+import { networkInterfaces } from "node:os"
+
+export class Service extends Context.Service<Service, { readonly urls: () => ReadonlyArray<string> }>()(
+  "@opencode-ai/server/ServerInfo",
+) {}
+
+export function layer(urls: () => ReadonlyArray<string>) {
+  return Layer.succeed(Service, Service.of({ urls }))
+}
+
+export function connectionURLs(value: string, requestedHostname?: string) {
+  const url = new URL(value)
+  const hostname = requestedHostname ?? url.hostname
+  const family = hostname === "0.0.0.0" ? "IPv4" : hostname === "::" || hostname === "[::]" ? "IPv6" : undefined
+  if (family === undefined) return [value]
+
+  return [
+    ...new Set(
+      Object.values(networkInterfaces())
+        .flatMap((entries) => entries ?? [])
+        .filter((entry) => !entry.internal && entry.family === family)
+        .map((entry) => {
+          const result = new URL(value)
+          result.hostname = family === "IPv6" ? `[${entry.address}]` : entry.address
+          return result.toString().replace(/\/$/, "")
+        }),
+    ),
+  ]
+}
+
+export * as ServerInfo from "./server-info"