import { contextBridge, ipcRenderer } from "electron";

contextBridge.exposeInMainWorld("electronAPI", {
  invoke: (channel: string, args?: unknown) => {
    const validChannels = ["db:query", "file:save", "app:close"];
    if (validChannels.includes(channel)) {
      return ipcRenderer.invoke(channel, args);
    }
    throw new Error(`Invalid IPC channel: ${channel}`);
  },
});

webPreferences: {
  preload: path.join(__dirname, 'preload.js'),
  contextIsolation: true,        // REQUIRED
  enableRemoteModule: false,     // REQUIRED
  sandbox: true,                 // REQUIRED
  nodeIntegration: false,        // REQUIRED
  webSecurity: true,
}

ipcMain.handle("db:insert", async (event, data: unknown) => {
  if (!isValidInsertData(data)) {
    throw new Error("Invalid data");
  }
  return db.insert(data);
});

import { defineConfig } from "electron-vite";

export default defineConfig({
  main: {
    build: {
      outDir: "dist/main",
      rollupOptions: {
        external: ["better-sqlite3", "native-module-name"],
      },
    },
  },
  preload: {
    build: { outDir: "dist/preload" },
  },
  renderer: {
    build: {
      outDir: "dist/renderer",
      rollupOptions: {
        output: {
          manualChunks: {
            vendor: ["react", "react-dom"],
          },
        },
      },
    },
  },
});

// Exposing entire Node.js API
contextBridge.exposeInMainWorld("require", require);

// Not validating IPC messages
ipcMain.handle("dangerous", (event, data) => {
  fs.writeFileSync(data.path, data.content);
});

// Using __dirname in renderer
const imagePath = `${__dirname}/images/logo.png`;

// Whitelist specific channels
contextBridge.exposeInMainWorld("electronAPI", {
  invoke: (channel: string, args: unknown) => {
    if (!["safe:channel"].includes(channel)) throw new Error("Invalid");
    return ipcRenderer.invoke(channel, args);
  },
});

// Validate all arguments
ipcMain.handle("file:write", async (event, { path, content }) => {
  if (typeof path !== "string" || typeof content !== "string") {
    throw new TypeError("Invalid arguments");
  }
  // Safe to use
});