From 8730641efddd41665b48c1f4f71b405657426421 Mon Sep 17 00:00:00 2001
From: uroma <uroma@rommark.dev>
Date: Mon, 19 Jan 2026 19:16:03 +0000
Subject: [PATCH] debug: add WebSocket stability delay and enhanced checks

- Added 100ms delay before sending command to ensure WebSocket stability
- Added detailed WebSocket state logging (CONNECTING, OPEN, CLOSING, CLOSED)
- Added bufferedAmount check to wait for pending sends
- Wrapped ws.send() in try-catch for better error reporting
- Split terminal and ws existence checks for clearer debugging
---
 database.sqlite-shm           | Bin 32768 -> 32768 bytes
 database.sqlite-wal           | Bin 683952 -> 733392 bytes
 public/claude-ide/terminal.js |  45 +++++++++++++++++++++++++++-------
 3 files changed, 36 insertions(+), 9 deletions(-)

diff --git a/database.sqlite-shm b/database.sqlite-shm
index e6cdcd3f24d7610d2a395606ff93561d12298ed0..6b32c0eec9df296245c7dbff836f4780e79685cd 100644
GIT binary patch
delta 202
zcmZo@U}|V!s+V}A%K!o_K+MR%Ag~EYa{}>1>89I?5l;{9O^w+o-BEI!ks)q_aM#}q
zQq=>E0t1k_|B(Pxn2BN8#>V+fn?Eq!v!DFWDUW?Q!)k_g3>!BqGIugf{^M%Gyn<m3
jkaL`A@-Gh)=9LWVHye6tvazpXSj(`1VbkVB|M><0CkaFC

delta 192
zcmZo@U}|V!s+V}A%K!o_K+MR%Ag~Nba{}=fH^z1Te8u*AQ)4ztca$98$@A)xMa8t+
zq^buR1qL8<|04mYFcZV9jg9k}HU}`Tv!9&6Y%uwsQ{Ltv<_S!b|G1g}8K;;g|MGw^
THvjNWVg?G$V%q#AkVg*ywWUFi

diff --git a/database.sqlite-wal b/database.sqlite-wal
index bc92952eb07f5fbda75fa4d40e31cd5359438574..23c9ec53d600c7cddab8465ffbd5a2c9c64981b9 100644
GIT binary patch
delta 327
zcmdmRU-QC4orV_17N!>F7M2#)7Pc1l7LFFqEnFM&r{B25D8TVyVNTGrhqc9%1tv-h
z3NtV;Z~`$a5Hka@`(&Gm#*D(-Pbf2O;OF?#qv*rzePG}Agd#=(0nXd99}loEt9Ieq
zesB{bzW|3s);fh_stO|8CrkoLbFgl$3JF@{`yRt!CZNF{P=hs6KnA~7{Gs;Fb%E6O
z1DilPeT6#hzQteqwEe~*5Le*F)Fks4VN4hXF#-+pgc?*Z1!xeb_fE}u*$-k~z?{^%
z#b())q;nD56+VMZO7oa^({NKcs*`|*fPoj(q#4X0C*5w6o_O$SgyQl5VI~0pn3H52

delta 29
kcmcccP-nw^&4w1n7N!>F7M2#)7Pc1l7LFFqEnFM&0kd)n!~g&Q

diff --git a/public/claude-ide/terminal.js b/public/claude-ide/terminal.js
index 192ac7ac..47404962 100644
--- a/public/claude-ide/terminal.js
+++ b/public/claude-ide/terminal.js
@@ -699,28 +699,55 @@ class TerminalManager {
       return;
     }
 
-    this.debugLog('CMD', `Terminal ${terminalId} is ready! Sending command.`);
+    this.debugLog('CMD', `Terminal ${terminalId} is ready!`);
+
+    // Small delay to ensure WebSocket is stable after switching terminals
+    this.debugLog('CMD', `Waiting 100ms for WebSocket to stabilize...`);
+    await new Promise(resolve => setTimeout(resolve, 100));
 
     const terminal = this.terminals.get(terminalId);
-    if (!terminal || !terminal.ws || terminal.ws.readyState !== WebSocket.OPEN) {
-      this.debugLog('ERROR', `Cannot send - WebSocket not ready`, {
-        hasTerminal: !!terminal,
-        hasWs: !!terminal?.ws,
-        wsState: terminal?.ws?.readyState,
-        stateName: terminal?.ws?.readyState === WebSocket.OPEN ? 'OPEN' : 'NOT OPEN'
+    if (!terminal) {
+      this.debugLog('ERROR', `Terminal ${terminalId} not found in map`);
+      return;
+    }
+
+    if (!terminal.ws) {
+      this.debugLog('ERROR', `WebSocket not set for terminal ${terminalId}`);
+      return;
+    }
+
+    // Check WebSocket state
+    const readyStates = ['CONNECTING', 'OPEN', 'CLOSING', 'CLOSED'];
+    this.debugLog('CMD', `WebSocket state: ${readyStates[terminal.ws.readyState]} (${terminal.ws.readyState})`);
+
+    if (terminal.ws.readyState !== WebSocket.OPEN) {
+      this.debugLog('ERROR', `Cannot send - WebSocket not open`, {
+        wsState: terminal.ws.readyState,
+        stateName: readyStates[terminal.ws.readyState]
       });
       return;
     }
 
+    // Check if WebSocket has any buffered amount (indicating pending sends)
+    if (terminal.ws.bufferedAmount > 0) {
+      this.debugLog('CMD', `WebSocket has ${terminal.ws.bufferedAmount} bytes buffered, waiting...`);
+      await new Promise(resolve => setTimeout(resolve, 200));
+    }
+
     // Send command to terminal
     const message = JSON.stringify({
       type: 'input',
       data: command
     });
     this.debugLog('CMD', `Sending to WebSocket: ${message}`);
-    terminal.ws.send(message);
 
-    this.debugLog('CMD', `Command sent to terminal ${terminalId}: ${command.trim()}`);
+    try {
+      terminal.ws.send(message);
+      this.debugLog('CMD', `Command sent to terminal ${terminalId}: ${command.trim()}`);
+    } catch (error) {
+      this.debugLog('ERROR', `Failed to send command`, { error: error.message, name: error.name });
+      showToast(`Failed to send command: ${error.message}`, 'error');
+    }
   }
 
   /**