refactor: separate the functions that connect container and first conect container

src/remote-container.ts

@@ -0,0 +1,55 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as os from 'os';
+import * as vscode from 'vscode';
+const { NodeSSH } = require('node-ssh')
+
+export default class RemoteContainer {
+
+  async firstConnect(host: string, username: string, password: string, port: number): Promise<void> {
+    // connect the host and add the public key to the remote authorized_keys
+    const defaultPublicKeyPath = path.join(os.homedir(), '.ssh', 'id_rsa.pub');
+    // TODO: if there is no public key, generate one
+    const publicKey = fs.readFileSync(defaultPublicKeyPath, 'utf8');
+
+
+    // first connect to the remote host using password
+    const ssh = new NodeSSH();
+    try {
+      await ssh.connect({
+        host: host,
+        username: username,
+        password: password,
+        port: port
+      });
+
+      // add the public key to the remote authorized_keys
+      await ssh.execCommand(`mkdir -p ~/.ssh && echo '${publicKey}' >> ~/.ssh/authorized_keys`);
+      console.log('Public key added to remote authorized_keys');
+    } catch (error) {
+      console.error('Error adding public key: ', error);
+    } finally {
+      await ssh.dispose();
+    }
+
+    // TODO: request change password
+
+    // TODO: use remote.SSH.configFile
+    const sshConfigPath = path.join(os.homedir(), '.ssh', 'config');
+    // append the host to the local ssh config file 
+    const sshConfigContent =
+      `\nHost ${host}\n  HostName ${host}\n  Port ${port}\n  User ${username}\n  PreferredAuthentications publickey\n  IdentityFile ~/.ssh/id_rsa\n  `;
+    // append the host to the local ssh config file
+    fs.writeFileSync(sshConfigPath, sshConfigContent, { encoding: 'utf8', flag: 'a' });
+    console.log('Host registered in local ssh config');
+  }
+
+
+  openRemoteFolder(host: string, path: string): void {
+    const command = `code --remote ssh-remote+${host} ${path} --reuse-window`
+    let terminal = vscode.window.activeTerminal || vscode.window.createTerminal(`Ext Terminal`);
+    terminal.show(true);
+    terminal.sendText(command);
+  }
+
+}