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

// Expose protected methods that allow the renderer process to use
// the ipcRenderer without exposing the entire object
contextBridge.exposeInMainWorld('electronAPI', {
  // Sync control
  invoke: (channel: string, ...args: any[]) => {
    const validChannels = [
      'sync:start',
      'sync:stop',
      'sync:force-full',
      'sync:trigger-immediate',
      'sync:get-status',
    
      'config:get',
      'config:update-s3',
      'config:update-sync',
      'config:update-ui',
      'config:test-s3',
      'config:export-env',
      'dialog:select-folder'
    ];
    
    if (validChannels.includes(channel)) {
      return ipcRenderer.invoke(channel, ...args);
    }
    
    throw new Error(`Invalid channel: ${channel}`);
  },

  // Event listeners for sync updates
  on: (channel: string, func: (...args: any[]) => void) => {
    const validChannels = [
      'sync-status-changed',
      'sync-operation-started',
      'sync-operation-completed',
      'sync-operation-failed',
      'sync-started',
      'sync-completed',
      'sync-error',
      'sync-engine-started',
      'sync-engine-stopped',
      'file-changed',
      'aws-output',
      'show-settings'
    ];
    
    if (validChannels.includes(channel)) {
      ipcRenderer.on(channel, (event: any, ...args: any[]) => func(...args));
    }
  },

  // Remove event listeners
  removeAllListeners: (channel: string) => {
    const validChannels = [
      'sync-status-changed',
      'sync-operation-started',
      'sync-operation-completed',
      'sync-operation-failed',
      'sync-started',
      'sync-completed',
      'sync-error',
      'sync-engine-started',
      'sync-engine-stopped',
      'file-changed',
      'aws-output',
      'show-settings'
    ];
    
    if (validChannels.includes(channel)) {
      ipcRenderer.removeAllListeners(channel);
    }
  },

  // Export environment variables
  exportEnv: async (exportPath?: string) => {
    return await ipcRenderer.invoke('config:export-env', exportPath);
  }
});

// Note: Type definitions are handled in a separate .d.ts file