Working messages display

electron/preload/index.ts

@@ -0,0 +1,43 @@
+import { contextBridge, ipcRenderer } from "electron"
+
+export interface ElectronAPI {
+  selectFolder: () => Promise<string | null>
+  createInstance: (folder: string) => Promise<{ port: number; pid: number }>
+  stopInstance: (pid: number) => Promise<void>
+  onInstanceStarted: (callback: (data: { id: string; port: number; pid: number }) => void) => void
+  onInstanceError: (callback: (data: { id: string; error: string }) => void) => void
+  onInstanceStopped: (callback: (data: { id: string }) => void) => void
+  onInstanceLog: (
+    callback: (data: { id: string; entry: { timestamp: number; level: string; message: string } }) => void,
+  ) => void
+  onNewInstance: (callback: () => void) => void
+}
+
+const electronAPI: ElectronAPI = {
+  selectFolder: () => ipcRenderer.invoke("dialog:selectFolder"),
+  createInstance: (folder: string) => ipcRenderer.invoke("instance:create", folder),
+  stopInstance: (pid: number) => ipcRenderer.invoke("instance:stop", pid),
+  onInstanceStarted: (callback) => {
+    ipcRenderer.on("instance:started", (_, data) => callback(data))
+  },
+  onInstanceError: (callback) => {
+    ipcRenderer.on("instance:error", (_, data) => callback(data))
+  },
+  onInstanceStopped: (callback) => {
+    ipcRenderer.on("instance:stopped", (_, data) => callback(data))
+  },
+  onInstanceLog: (callback) => {
+    ipcRenderer.on("instance:log", (_, data) => callback(data))
+  },
+  onNewInstance: (callback) => {
+    ipcRenderer.on("menu:newInstance", () => callback())
+  },
+}
+
+contextBridge.exposeInMainWorld("electronAPI", electronAPI)
+
+declare global {
+  interface Window {
+    electronAPI: ElectronAPI
+  }
+}