preload.js

/**
 * ╔══════════════════════════════════════════════════════════════════════╗
 * ║          CHAHUADEV HUB — Secure Preload Bridge (Context Isolation)  ║
 * ║                    IPC Gateway Pattern                               ║
 * ╚══════════════════════════════════════════════════════════════════════╝
 *
 * @author    Chahuadev
 * @license   NON-COMMERCIAL & ACCEPTABLE USE ONLY.
 *            Strictly prohibited for sale or malicious activities.
 *            See LICENSE.md for full terms.
 *
 * SECURITY:
 *   ✓ contextBridge only — no direct Node.js access from renderer
 *   ✓ All IPC calls validated in main process before execution
 *   ✓ Only whitelisted channels exposed
 */

'use strict';

const { contextBridge, ipcRenderer } = require('electron');

contextBridge.exposeInMainWorld('chahuadevHub', {

  // ── Info ────────────────────────────────────────────────────────────────//
  getDownloadDir: () =>
    ipcRenderer.invoke('get-download-dir'),

  isDev: () =>
    ipcRenderer.invoke('get-is-dev'),

  // ── Data fetching ────────────────────────────────────────────────────────
  fetchDashboard: () =>
    ipcRenderer.invoke('fetch-dashboard'),

  fetchFiles: () =>
    ipcRenderer.invoke('fetch-files'),

  fetchChangelog: () =>
    ipcRenderer.invoke('fetch-changelog'),

  fetchAllRepos: () =>
    ipcRenderer.invoke('fetch-all-repos'),

  fetchRepoCommits: (repoId, repoType) =>
    ipcRenderer.invoke('fetch-repo-commits', repoId, repoType),

  fetchRepoTree: (repoId, repoType, options) =>
    ipcRenderer.invoke('fetch-repo-tree', repoId, repoType, options),

  fetchRepoFile: (repoId, repoType, repoPath) =>
    ipcRenderer.invoke('fetch-repo-file', repoId, repoType, repoPath),

  openRepoFileEditor: (repoId, repoType, repoPath) =>
    ipcRenderer.invoke('open-repo-file-editor', repoId, repoType, repoPath),

  fetchNpmPackages: () =>
    ipcRenderer.invoke('fetch-npm-packages'),

  // ── Download ─────────────────────────────────────────────────────────────
  downloadFile: (filePath, fileSize) =>
    ipcRenderer.invoke('download-file', filePath, fileSize),

  // ── Progress events ───────────────────────────────────────────────────────
  onDownloadProgress: (callback) => {
    ipcRenderer.on('download-progress', (_event, filePath, downloaded, total, pct) => {
      callback({ filePath, received: downloaded, total, percent: pct });
    });
  },

  removeDownloadProgressListeners: () => {
    ipcRenderer.removeAllListeners('download-progress');
  },

  // ── Shell actions ─────────────────────────────────────────────────────────
  checkFileExists: (filePath) =>
    ipcRenderer.invoke('check-file-exists', filePath),

  // ── Update detection ──────────────────────────────────────────────────────
  // Save {version, releaseDate} sidecar after a successful download
  saveFileMeta: (filePath, meta) =>
    ipcRenderer.invoke('save-file-meta', filePath, meta),

  // Read sidecar — returns {version, releaseDate} or null
  getFileMeta: (filePath) =>
    ipcRenderer.invoke('get-file-meta', filePath),

  openFile: (filePath, expectedHash) =>
    ipcRenderer.invoke('open-file', filePath, expectedHash),

  openFileFolder: (filePath) =>
    ipcRenderer.invoke('open-file-folder', filePath),

  openDownloads: () =>
    ipcRenderer.invoke('open-downloads'),

  openExternalUrl: (url) =>
    ipcRenderer.invoke('open-external-url', url),

  // ── App self-update ──────────────────────────────────────────────────────────────
  getAppVersion: () =>
    ipcRenderer.invoke('get-app-version'),

  checkAppUpdate: () =>
    ipcRenderer.invoke('check-app-update'),

  updater: {
    getChannel: () => ipcRenderer.invoke('updater:get-channel'),
    getStatus: () => ipcRenderer.invoke('updater:get-status'),
    checkNow: () => ipcRenderer.invoke('updater:check-now')
  },

  // Run npm install -g @chahuadev/chahuadev-hub-app in background
  // Command is hardcoded in main process — cannot be overridden from renderer
  npmSelfUpdate: () =>
    ipcRenderer.invoke('npm-self-update'),

  onNpmUpdateLog: (callback) =>
    ipcRenderer.on('npm-update-log', (_e, line) => callback(line)),

  removeNpmUpdateLogListeners: () =>
    ipcRenderer.removeAllListeners('npm-update-log'),

  relaunchApp: () =>
    ipcRenderer.invoke('relaunch-app'),

  npmGetInstallPath: (pkgName) =>
    ipcRenderer.invoke('npm-get-install-path', pkgName),

  openNpmPkgFolder: (pkgName) =>
    ipcRenderer.invoke('open-npm-folder', pkgName),

  // Install any whitelisted npm package globally (command locked in main)
  npmInstallPackage: (pkgName) =>
    ipcRenderer.invoke('npm-install-package', pkgName),

  onNpmInstallLog: (callback) =>
    ipcRenderer.on('npm-install-log', (_e, line) => callback(line)),

  removeNpmInstallLogListeners: () =>
    ipcRenderer.removeAllListeners('npm-install-log'),

});