Auto-sync: 2026-02-16 21:44

core/window_manager.py

@@ -7,9 +7,11 @@ Windows-specific implementation using ctypes (no external dependencies).
 
 import sys
 import time
+import threading
 from typing import Optional, Tuple, Dict, Any
 from dataclasses import dataclass
 from pathlib import Path
+from functools import lru_cache
 
 # Platform detection
 IS_WINDOWS = sys.platform == 'win32'
@@ -26,6 +28,13 @@ if IS_WINDOWS:
 else:
     WINDOWS_AVAILABLE = False
 
+# Optional psutil import for fast process detection
+try:
+    import psutil
+    PSUTIL_AVAILABLE = True
+except ImportError:
+    PSUTIL_AVAILABLE = False
+
 
 @dataclass
 class WindowInfo:
@@ -50,6 +59,41 @@ class ProcessInfo:
     cpu_percent: Optional[float]
 
 
+class _WindowCache:
+    """Thread-safe cache for window information."""
+    
+    def __init__(self, ttl_seconds: float = 3.0):
+        self._cache: Dict[str, Any] = {}
+        self._timestamps: Dict[str, float] = {}
+        self._lock = threading.Lock()
+        self._ttl = ttl_seconds
+    
+    def get(self, key: str) -> Any:
+        """Get cached value if not expired."""
+        with self._lock:
+            if key not in self._cache:
+                return None
+            timestamp = self._timestamps.get(key, 0)
+            if time.time() - timestamp > self._ttl:
+                # Expired
+                del self._cache[key]
+                del self._timestamps[key]
+                return None
+            return self._cache[key]
+    
+    def set(self, key: str, value: Any):
+        """Set cached value."""
+        with self._lock:
+            self._cache[key] = value
+            self._timestamps[key] = time.time()
+    
+    def clear(self):
+        """Clear all cached values."""
+        with self._lock:
+            self._cache.clear()
+            self._timestamps.clear()
+
+
 class WindowManager:
     """
     Singleton Window Manager for EU-Utility.
@@ -59,6 +103,7 @@ class WindowManager:
     """
     
     _instance = None
+    _lock = threading.Lock()
     
     # Window search criteria - look for actual game client, not the loader
     EU_WINDOW_TITLE = "Entropia Universe Client"  # Matches "Entropia Universe Client (64-bit) PlanetName"
@@ -66,32 +111,49 @@ class WindowManager:
     
     def __new__(cls):
         if cls._instance is None:
-            cls._instance = super().__new__(cls)
+            with cls._lock:
-            cls._instance._initialized = False
+                if cls._instance is None:
+                    cls._instance = super().__new__(cls)
+                    cls._instance._initialized = False
         return cls._instance
     
     def __init__(self):
         if self._initialized:
             return
         
+        # Core state (lazy initialization)
         self._window_handle: Optional[int] = None
         self._window_info: Optional[WindowInfo] = None
         self._process_info: Optional[ProcessInfo] = None
         self._last_update: float = 0
-        self._update_interval: float = 1.0  # seconds
+        self._update_interval: float = 3.0  # Increased to 3 seconds
         
-        # Windows API constants
+        # Caching
-        if IS_WINDOWS and WINDOWS_AVAILABLE:
+        self._cache = _WindowCache(ttl_seconds=3.0)
-            self._setup_windows_api()
+        self._window_handle_cache: Optional[int] = None
+        self._window_handle_cache_time: float = 0
+        self._window_handle_ttl: float = 5.0  # Cache window handle for 5 seconds
+        
+        # Windows API (lazy initialization)
+        self._windows_api_ready = False
+        self._user32 = None
+        self._kernel32 = None
+        self._psutil_initialized = False
         
         self._initialized = True
         self._available = IS_WINDOWS and WINDOWS_AVAILABLE
         
         if not self._available:
-            print("[WindowManager] Windows API not available - running in limited mode")
+            pass  # Don't print here, print on first actual use if needed
+    
+    def _ensure_windows_api(self):
+        """Lazy initialization of Windows API."""
+        if self._windows_api_ready:
+            return
+        
+        if not IS_WINDOWS or not WINDOWS_AVAILABLE:
+            return
         
-    def _setup_windows_api(self):
-        """Setup Windows API constants and functions."""
         # Window styles
         self.GWL_STYLE = -16
         self.GWL_EXSTYLE = -20
@@ -99,8 +161,8 @@ class WindowManager:
         self.WS_MINIMIZE = 0x20000000
         
         # Load user32.dll functions
-        self.user32 = ctypes.windll.user32
+        self._user32 = ctypes.windll.user32
-        self.kernel32 = ctypes.windll.kernel32
+        self._kernel32 = ctypes.windll.kernel32
         
         # EnumWindows callback type
         self.EnumWindowsProc = ctypes.WINFUNCTYPE(
@@ -109,12 +171,70 @@ class WindowManager:
             wintypes.LPARAM
         )
         
+        self._windows_api_ready = True
+    
+    def _ensure_psutil(self):
+        """Lazy initialization of psutil-based process detection."""
+        if self._psutil_initialized:
+            return
+        
+        if PSUTIL_AVAILABLE:
+            # Pre-cache EU process info for fast lookups
+            self._refresh_eu_process_cache()
+        
+        self._psutil_initialized = True
+    
+    def _refresh_eu_process_cache(self):
+        """Refresh cached EU process information."""
+        if not PSUTIL_AVAILABLE:
+            return
+        
+        try:
+            for proc in psutil.process_iter(['pid', 'name', 'exe']):
+                try:
+                    proc_name = proc.info['name'].lower()
+                    if any(eu_name.lower() == proc_name for eu_name in self.EU_PROCESS_NAMES):
+                        self._cache.set('eu_pid', proc.info['pid'])
+                        self._cache.set('eu_process_name', proc.info['name'])
+                        break
+                except (psutil.NoSuchProcess, psutil.AccessDenied):
+                    continue
+        except Exception:
+            pass
+    
     # ========== Public API ==========
     
     def is_available(self) -> bool:
         """Check if window manager is fully functional."""
         return self._available
     
+    def find_eu_window_cached(self) -> Optional[WindowInfo]:
+        """
+        Find EU window with aggressive caching for performance.
+        Returns cached result if available and recent.
+        """
+        if not self._available:
+            return None
+        
+        # Check cache first
+        cached = self._cache.get('eu_window_info')
+        if cached:
+            return cached
+        
+        # Check if we have a cached window handle that's still valid
+        if self._window_handle_cache:
+            current_time = time.time()
+            if current_time - self._window_handle_cache_time < self._window_handle_ttl:
+                # Validate handle is still valid
+                if self._is_window_valid(self._window_handle_cache):
+                    info = self._get_window_info_fast(self._window_handle_cache)
+                    if info:
+                        self._cache.set('eu_window_info', info)
+                        return info
+        
+        # Fall back to full search
+        return self.find_eu_window()
+    
     def find_eu_window(self) -> Optional[WindowInfo]:
         """
         Find the Entropia Universe game window.
@@ -125,24 +245,92 @@ class WindowManager:
         if not self._available:
             return None
         
-        # Try by window title first
+        self._ensure_windows_api()
-        hwnd = self._find_window_by_title(self.EU_WINDOW_TITLE)
+        
+        # Try by window title first (faster)
+        hwnd = self._find_window_by_title_fast(self.EU_WINDOW_TITLE)
         
         if hwnd:
             self._window_handle = hwnd
-            self._window_info = self._get_window_info(hwnd)
+            self._window_handle_cache = hwnd
+            self._window_handle_cache_time = time.time()
+            self._window_info = self._get_window_info_fast(hwnd)
+            if self._window_info:
+                self._cache.set('eu_window_info', self._window_info)
             return self._window_info
         
-        # Try by process name
+        # Try by process name if title fails
         for proc_name in self.EU_PROCESS_NAMES:
-            hwnd = self._find_window_by_process(proc_name)
+            hwnd = self._find_window_by_process_fast(proc_name)
             if hwnd:
                 self._window_handle = hwnd
-                self._window_info = self._get_window_info(hwnd)
+                self._window_handle_cache = hwnd
+                self._window_handle_cache_time = time.time()
+                self._window_info = self._get_window_info_fast(hwnd)
+                if self._window_info:
+                    self._cache.set('eu_window_info', self._window_info)
                 return self._window_info
         
         return None
     
+    def is_eu_focused_fast(self) -> bool:
+        """
+        Ultra-fast check if EU is focused using psutil + cached window handle.
+        Target: <10ms execution time.
+        """
+        if not self._available:
+            return False
+        
+        self._ensure_windows_api()
+        self._ensure_psutil()
+        
+        try:
+            # Fast path: Check if our cached window is still focused
+            if self._window_handle_cache:
+                # Quick foreground window check (no window enumeration)
+                foreground_hwnd = self._user32.GetForegroundWindow()
+                if foreground_hwnd == self._window_handle_cache:
+                    # Verify window is still valid
+                    if self._is_window_valid(self._window_handle_cache):
+                        return True
+                    else:
+                        # Cache is stale, clear it
+                        self._window_handle_cache = None
+            
+            # Medium path: Use psutil to find EU process and check its windows
+            if PSUTIL_AVAILABLE:
+                eu_pid = self._cache.get('eu_pid')
+                if eu_pid:
+                    try:
+                        proc = psutil.Process(eu_pid)
+                        # Check if process still exists
+                        if proc.is_running():
+                            # Get foreground window
+                            foreground_hwnd = self._user32.GetForegroundWindow()
+                            # Get PID of foreground window
+                            fg_pid = wintypes.DWORD()
+                            self._user32.GetWindowThreadProcessId(foreground_hwnd, ctypes.byref(fg_pid))
+                            if fg_pid.value == eu_pid:
+                                # Found it! Cache the handle
+                                self._window_handle_cache = foreground_hwnd
+                                self._window_handle_cache_time = time.time()
+                                return True
+                        else:
+                            # Process died, refresh cache
+                            self._refresh_eu_process_cache()
+                    except (psutil.NoSuchProcess, psutil.AccessDenied):
+                        self._refresh_eu_process_cache()
+            
+            # Slow path: Find window and check focus
+            window = self.find_eu_window_cached()
+            if window:
+                return window.is_focused
+            
+            return False
+            
+        except Exception:
+            return False
+    
     def get_window_rect(self) -> Optional[Tuple[int, int, int, int]]:
         """
         Get the window rectangle (left, top, right, bottom).
@@ -167,18 +355,7 @@ class WindowManager:
         Returns:
             True if EU window is active, False otherwise
         """
-        if not self._available:
+        return self.is_eu_focused_fast()
-            return False
-        
-        if not self._window_handle:
-            self.find_eu_window()
-        
-        if not self._window_handle:
-            return False
-        
-        # Get foreground window
-        foreground_hwnd = self.user32.GetForegroundWindow()
-        return foreground_hwnd == self._window_handle
     
     def is_window_visible(self) -> bool:
         """
@@ -207,6 +384,8 @@ class WindowManager:
         if not self._available:
             return False
         
+        self._ensure_windows_api()
+        
         if not self._window_handle:
             self.find_eu_window()
         
@@ -215,13 +394,13 @@ class WindowManager:
         
         try:
             # Show window if minimized
-            self.user32.ShowWindow(self._window_handle, 9)  # SW_RESTORE = 9
+            self._user32.ShowWindow(self._window_handle, 9)  # SW_RESTORE = 9
             
             # Bring to front
-            result = self.user32.SetForegroundWindow(self._window_handle)
+            result = self._user32.SetForegroundWindow(self._window_handle)
             
             # Force window to top
-            self.user32.SetWindowPos(
+            self._user32.SetWindowPos(
                 self._window_handle,
                 -1,  # HWND_TOPMOST
                 0, 0, 0, 0,
@@ -229,7 +408,7 @@ class WindowManager:
             )
             
             # Remove topmost flag but keep on top
-            self.user32.SetWindowPos(
+            self._user32.SetWindowPos(
                 self._window_handle,
                 -2,  # HWND_NOTOPMOST
                 0, 0, 0, 0,
@@ -238,7 +417,6 @@ class WindowManager:
             
             return bool(result)
         except Exception as e:
-            print(f"[WindowManager] Failed to bring window to front: {e}")
             return False
     
     def get_eu_process_info(self) -> Optional[ProcessInfo]:
@@ -251,6 +429,13 @@ class WindowManager:
         if not self._available:
             return None
         
+        self._ensure_windows_api()
+        
+        # Try cache first
+        cached = self._cache.get('eu_process_info')
+        if cached:
+            return cached
+        
         if not self._window_handle:
             self.find_eu_window()
         
@@ -259,20 +444,24 @@ class WindowManager:
         
         # Get PID from window
         pid = wintypes.DWORD()
-        self.user32.GetWindowThreadProcessId(self._window_handle, ctypes.byref(pid))
+        self._user32.GetWindowThreadProcessId(self._window_handle, ctypes.byref(pid))
         
         if pid.value == 0:
             return None
         
-        self._process_info = self._get_process_info(pid.value)
+        self._process_info = self._get_process_info_fast(pid.value)
+        if self._process_info:
+            self._cache.set('eu_process_info', self._process_info)
         return self._process_info
     
     def get_window_handle(self) -> Optional[int]:
         """Get the current window handle."""
-        return self._window_handle
+        return self._window_handle_cache or self._window_handle
     
     def refresh(self) -> Optional[WindowInfo]:
         """Force refresh of window information."""
+        self._cache.clear()
+        self._window_handle_cache = None
         self._last_update = 0
         return self.find_eu_window()
     
@@ -282,118 +471,179 @@ class WindowManager:
         """Update cached window info if needed."""
         current_time = time.time()
         if current_time - self._last_update > self._update_interval:
-            if self._window_handle:
+            if self._window_handle_cache and self._is_window_valid(self._window_handle_cache):
-                self._window_info = self._get_window_info(self._window_handle)
+                self._window_info = self._get_window_info_fast(self._window_handle_cache)
             else:
                 self.find_eu_window()
             self._last_update = current_time
     
-    def _find_window_by_title(self, title: str) -> Optional[int]:
+    def _is_window_valid(self, hwnd: int) -> bool:
-        """Find window by title (partial match) - with timeout protection."""
+        """Check if a window handle is still valid (fast)."""
+        if not self._available or not hwnd:
+            return False
+        try:
+            return bool(self._user32.IsWindow(hwnd))
+        except Exception:
+            return False
+    
+    def _find_window_by_title_fast(self, title: str) -> Optional[int]:
+        """
+        Find window by title with strict timeout and limits.
+        Target: <50ms execution time.
+        """
         found_hwnd = [None]
-        start_time = time.time()
+        start_time = time.perf_counter()
         window_count = [0]
-        MAX_WINDOWS = 500  # Limit windows to check
+        MAX_WINDOWS = 200  # Reduced from 500
-        MAX_TIME = 0.1  # 100ms timeout
+        MAX_TIME = 0.025  # 25ms timeout (reduced from 100ms)
+        
+        title_lower = title.lower()
         
         def callback(hwnd, extra):
-            # Check timeout
+            # Check timeout first
-            if time.time() - start_time > MAX_TIME:
+            if time.perf_counter() - start_time > MAX_TIME:
-                return False  # Stop enumeration - timeout
+                return False
             
-            # Check window limit
             window_count[0] += 1
             if window_count[0] > MAX_WINDOWS:
-                return False  # Stop enumeration - too many windows
+                return False
             
-            if not self.user32.IsWindowVisible(hwnd):
+            # Quick visibility check
+            if not self._user32.IsWindowVisible(hwnd):
                 return True
             
-            # Quick check - skip windows with no title
+            # Get window text with smaller buffer
-            text = ctypes.create_unicode_buffer(256)
+            text = ctypes.create_unicode_buffer(128)  # Reduced from 256
-            self.user32.GetWindowTextW(hwnd, text, 256)
+            length = self._user32.GetWindowTextW(hwnd, text, 128)
-            window_title = text.value
             
-            if not window_title:  # Skip empty titles
+            if length == 0:  # Skip empty titles quickly
                 return True
             
-            # Fast case-insensitive check
+            # Fast lowercase comparison
-            if title.lower() in window_title.lower():
+            if title_lower in text.value.lower():
                 found_hwnd[0] = hwnd
                 return False  # Stop enumeration - found!
             
             return True
         
         proc = self.EnumWindowsProc(callback)
-        self.user32.EnumWindows(proc, 0)
+        self._user32.EnumWindows(proc, 0)
         
         return found_hwnd[0]
     
-    def _find_window_by_process(self, process_name: str) -> Optional[int]:
+    def _find_window_by_process_fast(self, process_name: str) -> Optional[int]:
-        """Find window by process name - with timeout protection."""
+        """
+        Find window by process name with strict timeout.
+        Uses psutil if available for faster process detection.
+        """
+        # Try psutil first for faster process-based lookup
+        if PSUTIL_AVAILABLE:
+            try:
+                for proc in psutil.process_iter(['pid', 'name']):
+                    try:
+                        if process_name.lower() in proc.info['name'].lower():
+                            # Found process, now find its window
+                            target_pid = proc.info['pid']
+                            # Look for window with this PID
+                            found = self._find_window_by_pid(target_pid)
+                            if found:
+                                return found
+                    except (psutil.NoSuchProcess, psutil.AccessDenied):
+                        continue
+            except Exception:
+                pass
+        
+        # Fall back to enumeration
         found_hwnd = [None]
-        start_time = time.time()
+        start_time = time.perf_counter()
         window_count = [0]
-        MAX_WINDOWS = 300  # Lower limit for process check (slower)
+        MAX_WINDOWS = 150  # Reduced from 300
-        MAX_TIME = 0.15  # 150ms timeout
+        MAX_TIME = 0.030  # 30ms timeout (reduced from 150ms)
+        
+        process_name_lower = process_name.lower()
         
         def callback(hwnd, extra):
-            # Check timeout
+            if time.perf_counter() - start_time > MAX_TIME:
-            if time.time() - start_time > MAX_TIME:
+                return False
-                return False  # Stop enumeration - timeout
             
-            # Check window limit
             window_count[0] += 1
             if window_count[0] > MAX_WINDOWS:
-                return False  # Stop enumeration - too many windows
+                return False
             
-            if not self.user32.IsWindowVisible(hwnd):
+            if not self._user32.IsWindowVisible(hwnd):
                 return True
             
             # Get process ID
             pid = wintypes.DWORD()
-            self.user32.GetWindowThreadProcessId(hwnd, ctypes.byref(pid))
+            self._user32.GetWindowThreadProcessId(hwnd, ctypes.byref(pid))
             
             if pid.value == 0:
                 return True
             
-            # Check process name (this is slower, so we limit more)
+            # Use cached process info if available
-            try:
+            cache_key = f"proc_{pid.value}"
-                proc_info = self._get_process_info(pid.value)
+            proc_info = self._cache.get(cache_key)
-                if proc_info and process_name.lower() in proc_info.name.lower():
+            
-                    found_hwnd[0] = hwnd
+            if proc_info is None:
-                    return False  # Stop enumeration - found!
+                # Get process info (cached)
-            except Exception:
+                proc_info = self._get_process_info_fast(pid.value)
-                pass  # Skip on error
+                if proc_info:
+                    self._cache.set(cache_key, proc_info)
+            
+            if proc_info and process_name_lower in proc_info.name.lower():
+                found_hwnd[0] = hwnd
+                return False
             
             return True
         
         proc = self.EnumWindowsProc(callback)
-        self.user32.EnumWindows(proc, 0)
+        self._user32.EnumWindows(proc, 0)
         
         return found_hwnd[0]
     
-    def _get_window_info(self, hwnd: int) -> Optional[WindowInfo]:
+    def _find_window_by_pid(self, target_pid: int) -> Optional[int]:
-        """Get detailed information about a window."""
+        """Find a window by its process ID."""
+        found_hwnd = [None]
+        
+        def callback(hwnd, extra):
+            if not self._user32.IsWindowVisible(hwnd):
+                return True
+            
+            pid = wintypes.DWORD()
+            self._user32.GetWindowThreadProcessId(hwnd, ctypes.byref(pid))
+            
+            if pid.value == target_pid:
+                found_hwnd[0] = hwnd
+                return False
+            
+            return True
+        
+        proc = self.EnumWindowsProc(callback)
+        self._user32.EnumWindows(proc, 0)
+        
+        return found_hwnd[0]
+    
+    def _get_window_info_fast(self, hwnd: int) -> Optional[WindowInfo]:
+        """Get window info with minimal overhead and timeout protection."""
         try:
             # Get window rect
             rect = wintypes.RECT()
-            if not self.user32.GetWindowRect(hwnd, ctypes.byref(rect)):
+            if not self._user32.GetWindowRect(hwnd, ctypes.byref(rect)):
                 return None
             
-            # Get window text
+            # Get window text (smaller buffer for speed)
-            text = ctypes.create_unicode_buffer(256)
+            text = ctypes.create_unicode_buffer(128)
-            self.user32.GetWindowTextW(hwnd, text, 256)
+            self._user32.GetWindowTextW(hwnd, text, 128)
             
             # Get PID
             pid = wintypes.DWORD()
-            self.user32.GetWindowThreadProcessId(hwnd, ctypes.byref(pid))
+            self._user32.GetWindowThreadProcessId(hwnd, ctypes.byref(pid))
             
             # Check visibility
-            is_visible = bool(self.user32.IsWindowVisible(hwnd))
+            is_visible = bool(self._user32.IsWindowVisible(hwnd))
             
             # Check if focused
-            foreground = self.user32.GetForegroundWindow()
+            foreground = self._user32.GetForegroundWindow()
             is_focused = (foreground == hwnd)
             
             return WindowInfo(
@@ -406,26 +656,38 @@ class WindowManager:
                 is_visible=is_visible,
                 is_focused=is_focused
             )
-        except Exception as e:
+        except Exception:
-            print(f"[WindowManager] Error getting window info: {e}")
             return None
     
-    def _get_process_info(self, pid: int) -> Optional[ProcessInfo]:
+    def _get_process_info_fast(self, pid: int) -> Optional[ProcessInfo]:
-        """Get process information."""
+        """Get process info with caching and minimal overhead."""
-        try:
+        # Try psutil first (much faster)
-            # Use Windows WMI or tasklist for process info
+        if PSUTIL_AVAILABLE:
-            import subprocess
+            try:
+                proc = psutil.Process(pid)
+                info = proc.as_dict(attrs=['pid', 'name', 'exe', 'memory_info'])
+                return ProcessInfo(
+                    pid=info['pid'],
+                    name=info['name'],
+                    executable_path=info.get('exe'),
+                    memory_usage=info['memory_info'].rss if info.get('memory_info') else None,
+                    cpu_percent=None
+                )
+            except (psutil.NoSuchProcess, psutil.AccessDenied):
+                return None
+            except Exception:
+                pass
         
-            # Try tasklist first
+        # Fall back to tasklist (slower)
+        try:
             result = subprocess.run(
                 ['tasklist', '/FI', f'PID eq {pid}', '/FO', 'CSV', '/NH'],
                 capture_output=True,
                 text=True,
-                timeout=5
+                timeout=2  # Reduced from 5
             )
             
             if result.returncode == 0 and result.stdout.strip():
-                # Parse CSV output
                 lines = result.stdout.strip().split('\n')
                 for line in lines:
                     if str(pid) in line:
@@ -447,16 +709,9 @@ class WindowManager:
                 memory_usage=None,
                 cpu_percent=None
             )
-        except Exception as e:
+        except Exception:
-            print(f"[WindowManager] Error getting process info: {e}")
             return None
 
-    def _check_window_exists(self, hwnd: int) -> bool:
-        """Check if a window handle is still valid."""
-        if not self._available:
-            return False
-        return bool(self.user32.IsWindow(hwnd))
-
 
 # Singleton instance
 _window_manager = None
@@ -473,7 +728,7 @@ def get_window_manager() -> WindowManager:
 def is_eu_running() -> bool:
     """Quick check if Entropia Universe is running."""
     wm = get_window_manager()
-    return wm.find_eu_window() is not None
+    return wm.find_eu_window_cached() is not None
 
 
 def get_eu_window_rect() -> Optional[Tuple[int, int, int, int]]:
@@ -496,7 +751,7 @@ def wait_for_eu(timeout: float = 30.0) -> bool:
     start_time = time.time()
     
     while time.time() - start_time < timeout:
-        if wm.find_eu_window():
+        if wm.find_eu_window_cached():
             return True
         time.sleep(0.5)