feat: add terminal & wake pc

backend/lib/terminal.ts

@@ -0,0 +1,46 @@
+import Pty from "node-pty";
+import type { WebSocket } from "ws";
+
+type TerminalClient = WebSocket & { tty?: Pty.IPty | null };
+
+export const createTerminalSession = (client: TerminalClient) => {
+  // Each client will have own terminal
+  const tty = Pty.spawn(process.env.TERMINAL_SHELL || "bash", [], {
+    name: "xterm-color",
+    cols: 80,
+    rows: 24,
+    cwd: process.env.PWD,
+    env: process.env,
+  });
+  client.tty = tty;
+
+  tty.onExit(() => {
+    client.tty = null;
+    client.close();
+  });
+
+  tty.onData(function (data) {
+    client.send(data);
+  });
+
+  client.on("close", function () {
+    if (client.tty) {
+      client.tty.kill("SIGINT");
+      client.tty = null;
+    }
+  });
+
+  client.on("message", function (data) {
+    const msg = data.toString("utf-8");
+
+    if (msg.startsWith("resize:")) {
+      const [cols, rows] = msg.split(":")[1].split(",");
+      if (client.tty) {
+        client.tty.resize(parseInt(cols), parseInt(rows));
+      }
+      return;
+    }
+
+    client.tty && client.tty.write(msg);
+  });
+};