feat: image generation overhaul (model-aware text, dim clamping, \.30 pricing), event-driven dashboard cache invalidation, SEO insights (AI visibility, GSC, keyword gap), YouTube OAuth/publish, blog writer & content planning improvements, scheduler monitoring updates

backend/api/subscription/cache.py

@@ -1,68 +1,19 @@
 """
 Cache management for subscription API endpoints.
+
+Delegates to the canonical implementation in services/subscription/cache.py.
+All cache state lives there so service-layer code can invalidate without
+importing from the API layer.
 """
 
-from typing import Dict, Any
-import time
-import os
+from services.subscription.cache import (
+    get_cached_dashboard,
+    set_cached_dashboard,
+    clear_dashboard_cache,
+)
 
-
-# Simple in-process cache for dashboard responses to smooth bursts
-# Cache key: (user_id). TTL-like behavior implemented via timestamp check
-_dashboard_cache: Dict[str, Dict[str, Any]] = {}
-_dashboard_cache_ts: Dict[str, float] = {}
-_DASHBOARD_CACHE_TTL_SEC = 600.0
-
-
-def get_cached_dashboard(user_id: str) -> Dict[str, Any] | None:
-    """
-    Get cached dashboard data if available and not expired.
-    
-    Args:
-        user_id: User ID to get cached data for
-        
-    Returns:
-        Cached dashboard data or None if not cached/expired
-    """
-    # Check if caching is disabled via environment variable
-    nocache = False
-    try:
-        nocache = os.getenv('SUBSCRIPTION_DASHBOARD_NOCACHE', 'false').lower() in {'1', 'true', 'yes', 'on'}
-    except Exception:
-        nocache = False
-    
-    if nocache:
-        return None
-    
-    now = time.time()
-    if user_id in _dashboard_cache and (now - _dashboard_cache_ts.get(user_id, 0)) < _DASHBOARD_CACHE_TTL_SEC:
-        return _dashboard_cache[user_id]
-    
-    return None
-
-
-def set_cached_dashboard(user_id: str, data: Dict[str, Any]) -> None:
-    """
-    Cache dashboard data for a user.
-    
-    Args:
-        user_id: User ID to cache data for
-        data: Dashboard data to cache
-    """
-    _dashboard_cache[user_id] = data
-    _dashboard_cache_ts[user_id] = time.time()
-
-
-def clear_dashboard_cache(user_id: str | None = None) -> None:
-    """
-    Clear dashboard cache for a specific user or all users.
-    
-    Args:
-        user_id: User ID to clear cache for, or None to clear all
-    """
-    if user_id:
-        _dashboard_cache.pop(user_id, None)
-        _dashboard_cache_ts.pop(user_id, None)
-    else:
-        _dashboard_cache.clear()
-        _dashboard_cache_ts.clear()
+__all__ = [
+    "get_cached_dashboard",
+    "set_cached_dashboard",
+    "clear_dashboard_cache",
+]