From a6ae549ecafc94e33698b8c6c88438e76e595328 Mon Sep 17 00:00:00 2001
From: 13315423919 <13315423919@qq.com>
Date: Fri, 7 Nov 2025 09:05:19 +0800
Subject: [PATCH] Add File

---
 src/landppt/services/service_instances.py | 85 +++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 src/landppt/services/service_instances.py

diff --git a/src/landppt/services/service_instances.py b/src/landppt/services/service_instances.py
new file mode 100644
index 0000000..e3a2886
--- /dev/null
+++ b/src/landppt/services/service_instances.py
@@ -0,0 +1,85 @@
+"""
+Shared service instances to ensure data consistency across modules
+"""
+
+from .enhanced_ppt_service import EnhancedPPTService
+from .db_project_manager import DatabaseProjectManager
+
+# Global service instances (lazy initialization)
+_ppt_service = None
+_project_manager = None
+
+def get_ppt_service() -> EnhancedPPTService:
+    """Get PPT service instance (lazy initialization)"""
+    global _ppt_service
+    if _ppt_service is None:
+        _ppt_service = EnhancedPPTService()
+    return _ppt_service
+
+def get_project_manager() -> DatabaseProjectManager:
+    """Get project manager instance (lazy initialization)"""
+    global _project_manager
+    if _project_manager is None:
+        _project_manager = DatabaseProjectManager()
+    return _project_manager
+
+def reload_services():
+    """Reload all service instances to pick up new configuration"""
+    global _ppt_service, _project_manager
+
+    # First, reload research configuration in existing PPT service instances before clearing them
+    try:
+        if _ppt_service is not None:
+            _ppt_service.reload_research_config()
+    except Exception as e:
+        import logging
+        logger = logging.getLogger(__name__)
+        logger.warning(f"Failed to reload research config in PPT service: {e}")
+
+    # Also reload research service if it exists
+    try:
+        from ..api.landppt_api import reload_research_service
+        reload_research_service()
+    except ImportError:
+        pass  # Research service may not be available
+
+    # Clear service instances to force recreation with new config
+    _ppt_service = None
+    _project_manager = None
+
+    # Also reload PDF to PPTX converter configuration
+    try:
+        from .pdf_to_pptx_converter import reload_pdf_to_pptx_converter
+        reload_pdf_to_pptx_converter()
+    except ImportError:
+        pass  # PDF converter may not be available
+
+# Backward compatibility - create module-level variables that get updated
+def _update_module_vars():
+    """Update module-level variables for backward compatibility"""
+    import sys
+    current_module = sys.modules[__name__]
+    current_module.ppt_service = get_ppt_service()
+    current_module.project_manager = get_project_manager()
+
+# Initialize module variables
+_update_module_vars()
+
+# Override reload_services to also update module variables
+_original_reload_services = reload_services
+
+def reload_services():
+    """Reload all service instances and update module variables"""
+    import logging
+    logger = logging.getLogger(__name__)
+    logger.info("Starting service reload process...")
+
+    _original_reload_services()
+    logger.info("Original service reload completed")
+
+    # Update module variables after services are reloaded
+    _update_module_vars()
+    logger.info("Module variables updated with new service instances")
+
+# Export for easy import
+__all__ = ['get_ppt_service', 'get_project_manager', 'reload_services', 'ppt_service', 'project_manager']