feat: plugins only see their own host settings in the browser

plugins/wake-on-lan/src/frontend/host-action.ts

@@ -5,11 +5,19 @@ import type {
   TermixApp,
 } from "@termix/plugin-sdk/frontend";
 
+export function macAddressOf(
+  host: Pick<PluginHostRecord, "pluginSettings"> | null | undefined,
+): string | null {
+  const macAddress = host?.pluginSettings?.["wake-on-lan"]?.macAddress;
+  return typeof macAddress === "string" && macAddress.trim()
+    ? macAddress.trim()
+    : null;
+}
+
 export function hasMacAddress(
   host: Pick<PluginHostRecord, "pluginSettings">,
 ): boolean {
-  const macAddress = host.pluginSettings?.["wake-on-lan"]?.macAddress;
-  return typeof macAddress === "string" && macAddress.trim().length > 0;
+  return macAddressOf(host) !== null;
 }
 
 function errorMessage(error: unknown, fallback: string): string {

plugins/wake-on-lan/src/frontend/index.tsx

@@ -1,6 +1,6 @@
 import { Zap } from "lucide-react";
 import type { TermixApp } from "@termix/plugin-sdk/frontend";
-import { hasMacAddress, wakeHost } from "./host-action.js";
+import { hasMacAddress, macAddressOf, wakeHost } from "./host-action.js";
 
 export function activate(app: TermixApp): void {
   app.registerHostAction({
@@ -12,4 +12,8 @@ export function activate(app: TermixApp): void {
     when: (host) => hasMacAddress(host),
     run: (host) => wakeHost(app.api, app.t, String(host.id)),
   });
+
+  // A saved host's MAC address, for plugins that send their own wake packet.
+  app.registerAction("wakeOnLan.macAddress", ((hostId: string | number) =>
+    macAddressOf(app.getHost(hostId))) as never);
 }

plugins/wake-on-lan/tests/frontend/host-action.test.ts

@@ -1,7 +1,11 @@
 import { describe, it, expect, vi, afterEach } from "vitest";
 import { toast } from "sonner";
 import type { PluginApiClient } from "@termix/plugin-sdk/frontend";
-import { hasMacAddress, wakeHost } from "../../src/frontend/host-action.js";
+import {
+  hasMacAddress,
+  macAddressOf,
+  wakeHost,
+} from "../../src/frontend/host-action.js";
 
 vi.mock("sonner", () => ({
   toast: { success: vi.fn(), error: vi.fn() },
@@ -24,6 +28,26 @@ function stubApi(overrides: Partial<PluginApiClient> = {}): PluginApiClient {
 
 const t = (key: string) => key;
 
+describe("macAddressOf", () => {
+  it("returns the trimmed MAC address a host keeps", () => {
+    expect(
+      macAddressOf({
+        pluginSettings: {
+          "wake-on-lan": { macAddress: " aa:bb:cc:dd:ee:ff " },
+        },
+      }),
+    ).toBe("aa:bb:cc:dd:ee:ff");
+  });
+
+  it("is null without a host or an address", () => {
+    expect(macAddressOf(undefined)).toBeNull();
+    expect(macAddressOf({ pluginSettings: {} })).toBeNull();
+    expect(
+      macAddressOf({ pluginSettings: { "wake-on-lan": { macAddress: "  " } } }),
+    ).toBeNull();
+  });
+});
+
 describe("hasMacAddress", () => {
   it("is true when the host's wake-on-lan settings carry a MAC address", () => {
     expect(