Imporve enterprise

services/distribution/app/api/vrp_optimization.py

@@ -0,0 +1,341 @@
+"""
+VRP Optimization API Endpoints
+Endpoints for VRP optimization and metrics retrieval
+"""
+
+from fastapi import APIRouter, Depends, HTTPException, Query
+from typing import List, Dict, Any, Optional
+from pydantic import BaseModel, Field
+import structlog
+
+from app.services.vrp_optimization_service import VRPOptimizationService
+from app.services.distribution_service import DistributionService
+from shared.auth.tenant_access import verify_tenant_permission_dep
+from app.core.config import settings
+
+logger = structlog.get_logger()
+router = APIRouter()
+
+
+# Pydantic models for request/response
+class VRPOptimizationRequest(BaseModel):
+    algorithm_version: str = Field(default="v2.1", description="VRP algorithm version to use")
+    constraints: Optional[Dict[str, Any]] = Field(
+        None, 
+        description="Optimization constraints: max_route_duration, max_route_distance, etc."
+    )
+
+
+class VRPOptimizationResponse(BaseModel):
+    success: bool
+    route_id: str
+    optimization_savings: Dict[str, Any]
+    vrp_algorithm_version: str
+    vrp_optimization_timestamp: str
+    vrp_constraints_satisfied: bool
+    vrp_objective_value: float
+
+
+class RouteOptimizationMetrics(BaseModel):
+    route_id: str
+    route_number: str
+    route_date: str
+    vrp_optimization_savings: Optional[Dict[str, Any]]
+    vrp_algorithm_version: Optional[str]
+    vrp_optimization_timestamp: Optional[str]
+    vrp_constraints_satisfied: Optional[bool]
+    vrp_objective_value: Optional[float]
+    total_distance_km: Optional[float]
+    estimated_duration_minutes: Optional[int]
+
+
+class NetworkOptimizationSummary(BaseModel):
+    total_routes: int
+    optimized_routes: int
+    total_distance_saved_km: float
+    total_time_saved_minutes: float
+    total_fuel_saved_liters: float
+    total_co2_saved_kg: float
+    total_cost_saved_eur: float
+    optimization_rate: float
+    average_savings_per_route: Optional[Dict[str, Any]]
+
+
+class OptimizationHistoryItem(BaseModel):
+    optimization_id: str
+    route_id: str
+    timestamp: str
+    algorithm_version: str
+    distance_saved_km: float
+    time_saved_minutes: float
+    fuel_saved_liters: float
+    co2_saved_kg: float
+    cost_saved_eur: float
+    constraints_satisfied: bool
+
+
+async def get_vrp_optimization_service() -> VRPOptimizationService:
+    """Dependency injection for VRPOptimizationService"""
+    from app.core.database import database_manager
+    from app.services.distribution_service import DistributionService as BusinessDistributionService
+    from app.repositories.delivery_route_repository import DeliveryRouteRepository
+    from app.repositories.shipment_repository import ShipmentRepository
+    from app.repositories.delivery_schedule_repository import DeliveryScheduleRepository
+    from shared.clients.tenant_client import TenantServiceClient
+    from shared.clients.inventory_client import InventoryServiceClient
+    from shared.clients.procurement_client import ProcurementServiceClient
+    from app.services.routing_optimizer import RoutingOptimizer
+    
+    # Create the business distribution service with proper dependencies
+    route_repository = DeliveryRouteRepository(database_manager.get_session())
+    shipment_repository = ShipmentRepository(database_manager.get_session())
+    schedule_repository = DeliveryScheduleRepository(database_manager.get_session())
+    
+    # Create client instances (these will be initialized with proper config)
+    tenant_client = TenantServiceClient()
+    inventory_client = InventoryServiceClient()
+    procurement_client = ProcurementServiceClient()
+    routing_optimizer = RoutingOptimizer()
+    
+    distribution_service = BusinessDistributionService(
+        route_repository=route_repository,
+        shipment_repository=shipment_repository,
+        schedule_repository=schedule_repository,
+        procurement_client=procurement_client,
+        tenant_client=tenant_client,
+        inventory_client=inventory_client,
+        routing_optimizer=routing_optimizer
+    )
+    
+    return VRPOptimizationService(distribution_service, database_manager)
+
+
+@router.post("/tenants/{tenant_id}/routes/{route_id}/optimize",
+            response_model=VRPOptimizationResponse,
+            summary="Optimize delivery route with VRP")
+async def optimize_route_with_vrp(
+    tenant_id: str,
+    route_id: str,
+    optimization_request: VRPOptimizationRequest,
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Optimize a delivery route using VRP algorithm
+    
+    This endpoint applies VRP optimization to a specific delivery route and stores
+    the optimization metrics for analysis and reporting.
+    """
+    try:
+        result = await vrp_service.optimize_route_with_vrp(
+            route_id=route_id,
+            algorithm_version=optimization_request.algorithm_version,
+            constraints=optimization_request.constraints
+        )
+        
+        if not result.get('success'):
+            raise HTTPException(status_code=500, detail="Optimization failed")
+        
+        return VRPOptimizationResponse(
+            success=True,
+            route_id=result['route_id'],
+            optimization_savings=result['optimization_savings'],
+            vrp_algorithm_version=result['optimization_savings'].get('algorithm_version', optimization_request.algorithm_version),
+            vrp_optimization_timestamp=result['optimization_savings'].get('timestamp', datetime.now().isoformat()),
+            vrp_constraints_satisfied=result['optimization_savings'].get('constraints_satisfied', True),
+            vrp_objective_value=result['optimization_savings'].get('objective_value', 0.0)
+        )
+        
+    except Exception as e:
+        logger.error("VRP optimization failed", tenant_id=tenant_id, route_id=route_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"VRP optimization failed: {str(e)}")
+
+
+@router.get("/tenants/{tenant_id}/routes/{route_id}/optimization-metrics",
+           response_model=RouteOptimizationMetrics,
+           summary="Get VRP optimization metrics for route")
+async def get_route_optimization_metrics(
+    tenant_id: str,
+    route_id: str,
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Get VRP optimization metrics for a specific route
+    
+    Retrieves stored optimization metrics including savings, algorithm version,
+    and constraint satisfaction status.
+    """
+    try:
+        metrics = await vrp_service.get_route_optimization_metrics(route_id)
+        return RouteOptimizationMetrics(**metrics)
+        
+    except Exception as e:
+        logger.error("Failed to get route optimization metrics", tenant_id=tenant_id, route_id=route_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"Failed to get optimization metrics: {str(e)}")
+
+
+@router.get("/tenants/{tenant_id}/vrp/optimization-summary",
+           response_model=NetworkOptimizationSummary,
+           summary="Get network-wide VRP optimization summary")
+async def get_network_optimization_summary(
+    tenant_id: str,
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Get aggregated VRP optimization metrics across all routes
+    
+    Provides network-wide summary of optimization benefits including
+    total savings, optimization rate, and average improvements.
+    """
+    try:
+        summary = await vrp_service.get_network_optimization_summary(tenant_id)
+        return NetworkOptimizationSummary(**summary)
+        
+    except Exception as e:
+        logger.error("Failed to get network optimization summary", tenant_id=tenant_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"Failed to get optimization summary: {str(e)}")
+
+
+@router.post("/tenants/{tenant_id}/vrp/batch-optimize",
+            summary="Batch optimize multiple routes")
+async def batch_optimize_routes(
+    tenant_id: str,
+    route_ids: List[str] = Query(..., description="List of route IDs to optimize"),
+    algorithm_version: str = Query("v2.1", description="VRP algorithm version"),
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Batch optimize multiple delivery routes with VRP
+    
+    Applies VRP optimization to multiple routes in a single request.
+    """
+    try:
+        result = await vrp_service.batch_optimize_routes(tenant_id, route_ids)
+        
+        return {
+            'success': True,
+            'total_routes_processed': result['total_routes_processed'],
+            'successful_optimizations': result['successful_optimizations'],
+            'failed_optimizations': result['failed_optimizations'],
+            'results': result['results']
+        }
+        
+    except Exception as e:
+        logger.error("Batch optimization failed", tenant_id=tenant_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"Batch optimization failed: {str(e)}")
+
+
+@router.get("/tenants/{tenant_id}/routes/{route_id}/optimization-history",
+           response_model=List[OptimizationHistoryItem],
+           summary="Get optimization history for route")
+async def get_optimization_history(
+    tenant_id: str,
+    route_id: str,
+    limit: int = Query(10, description="Maximum number of historical records to return"),
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Get historical optimization records for a route
+    
+    Retrieves past optimization runs and their results for analysis.
+    """
+    try:
+        history = await vrp_service.get_optimization_history(route_id, limit)
+        return [OptimizationHistoryItem(**item) for item in history]
+        
+    except Exception as e:
+        logger.error("Failed to get optimization history", tenant_id=tenant_id, route_id=route_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"Failed to get optimization history: {str(e)}")
+
+
+@router.get("/tenants/{tenant_id}/vrp/constraints/validate",
+           summary="Validate VRP constraints")
+async def validate_vrp_constraints(
+    tenant_id: str,
+    route_id: str,
+    max_route_duration: Optional[int] = Query(None, description="Maximum route duration in minutes"),
+    max_route_distance: Optional[float] = Query(None, description="Maximum route distance in km"),
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Validate VRP constraints against a route
+    
+    Checks if a route satisfies specified VRP constraints.
+    """
+    try:
+        from app.services.vrp_optimization_service import VRPConstraintValidator
+        
+        # Get route data
+        route = await vrp_service.distribution_service.get_delivery_route(route_id)
+        
+        if not route:
+            raise HTTPException(status_code=404, detail="Route not found")
+        
+        # Build constraints dict
+        constraints = {}
+        if max_route_duration is not None:
+            constraints['max_route_duration'] = max_route_duration
+        if max_route_distance is not None:
+            constraints['max_route_distance'] = max_route_distance
+        
+        # Validate constraints
+        validation_result = VRPConstraintValidator.validate_constraints(route, constraints)
+        
+        return {
+            'success': True,
+            'all_constraints_satisfied': validation_result['all_satisfied'],
+            'constraint_violations': validation_result['constraint_violations']
+        }
+        
+    except Exception as e:
+        logger.error("Failed to validate VRP constraints", tenant_id=tenant_id, route_id=route_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"Failed to validate constraints: {str(e)}")
+
+
+@router.post("/tenants/{tenant_id}/vrp/simulate",
+            summary="Simulate VRP optimization")
+async def simulate_vrp_optimization(
+    tenant_id: str,
+    route_id: str,
+    vrp_service: VRPOptimizationService = Depends(get_vrp_optimization_service),
+    verified_tenant: str = Depends(verify_tenant_permission_dep)
+):
+    """
+    Simulate VRP optimization without saving results
+    
+    Useful for testing and previewing optimization results.
+    """
+    try:
+        from app.services.vrp_optimization_service import VRPOptimizationSimulator
+        
+        # Get route data
+        route = await vrp_service.distribution_service.get_delivery_route(route_id)
+        
+        if not route:
+            raise HTTPException(status_code=404, detail="Route not found")
+        
+        # Simulate optimization
+        simulation_result = VRPOptimizationSimulator.simulate_optimization(route)
+        
+        return {
+            'success': True,
+            'original_route': simulation_result['original_route'],
+            'optimized_route': simulation_result['optimized_route'],
+            'optimization_savings': simulation_result['optimization_savings'],
+            'algorithm_version': simulation_result['algorithm_version'],
+            'constraints_satisfied': simulation_result['constraints_satisfied'],
+            'objective_value': simulation_result['objective_value']
+        }
+        
+    except Exception as e:
+        logger.error("VRP simulation failed", tenant_id=tenant_id, route_id=route_id, error=str(e))
+        raise HTTPException(status_code=500, detail=f"VRP simulation failed: {str(e)}")
+
+
+# Import datetime at runtime to avoid circular imports
+from datetime import datetime

services/distribution/app/main.py

@@ -9,6 +9,7 @@ from app.core.database import database_manager
 from app.api.routes import router as distribution_router
 from app.api.shipments import router as shipments_router
 from app.api.internal_demo import router as internal_demo_router
+from app.api.vrp_optimization import router as vrp_optimization_router
 from shared.service_base import StandardFastAPIService
 
 
@@ -122,4 +123,5 @@ service.setup_standard_endpoints()
 # Note: Routes now use RouteBuilder which includes full paths, so no prefix needed
 service.add_router(distribution_router, tags=["distribution"])
 service.add_router(shipments_router, tags=["shipments"])
-service.add_router(internal_demo_router, tags=["internal-demo"])
+service.add_router(internal_demo_router, tags=["internal-demo"])
+service.add_router(vrp_optimization_router, tags=["vrp-optimization"])

services/distribution/app/models/distribution.py

@@ -58,6 +58,13 @@ class DeliveryRoute(Base):
     total_distance_km = Column(Float, nullable=True)
     estimated_duration_minutes = Column(Integer, nullable=True)
     
+    # VRP Optimization metrics (Phase 2 enhancement)
+    vrp_optimization_savings = Column(JSONB, nullable=True)  # {"distance_saved_km": 12.5, "time_saved_minutes": 25, "fuel_saved_liters": 8.2, "co2_saved_kg": 15.4, "cost_saved_eur": 12.50}
+    vrp_algorithm_version = Column(String(50), nullable=True)  # Version of VRP algorithm used
+    vrp_optimization_timestamp = Column(DateTime(timezone=True), nullable=True)  # When optimization was performed
+    vrp_constraints_satisfied = Column(Boolean, nullable=True)  # Whether all constraints were satisfied
+    vrp_objective_value = Column(Float, nullable=True)  # Objective function value from optimization
+    
     # Route details
     route_sequence = Column(JSONB, nullable=True)  # Ordered array of stops with timing: [{"stop_number": 1, "location_id": "...", "estimated_arrival": "...", "actual_arrival": "..."}]
     notes = Column(Text, nullable=True)

services/distribution/app/repositories/delivery_route_repository.py

@@ -231,4 +231,82 @@ class DeliveryRouteRepository:
         await self.db_session.commit()
 
         deleted_count = result.rowcount
-        return deleted_count
+        return deleted_count
+
+    async def update_route_vrp_metrics(self, route_id: str, vrp_metrics: Dict[str, Any]) -> Optional[Dict[str, Any]]:
+        """
+        Update VRP optimization metrics for a route
+        """
+        stmt = select(DeliveryRoute).where(DeliveryRoute.id == route_id)
+        result = await self.db_session.execute(stmt)
+        route = result.scalar_one_or_none()
+
+        if not route:
+            return None
+
+        # Update VRP metrics fields
+        route.vrp_optimization_savings = vrp_metrics.get('vrp_optimization_savings')
+        route.vrp_algorithm_version = vrp_metrics.get('vrp_algorithm_version')
+        route.vrp_optimization_timestamp = vrp_metrics.get('vrp_optimization_timestamp')
+        route.vrp_constraints_satisfied = vrp_metrics.get('vrp_constraints_satisfied')
+        route.vrp_objective_value = vrp_metrics.get('vrp_objective_value')
+
+        await self.db_session.commit()
+        await self.db_session.refresh(route)
+
+        return {
+            'id': str(route.id),
+            'vrp_optimization_savings': route.vrp_optimization_savings,
+            'vrp_algorithm_version': route.vrp_algorithm_version,
+            'vrp_optimization_timestamp': route.vrp_optimization_timestamp,
+            'vrp_constraints_satisfied': route.vrp_constraints_satisfied,
+            'vrp_objective_value': route.vrp_objective_value
+        }
+
+    async def get_routes_by_tenant(self, tenant_id: str, limit: int = None, offset: int = None, order_by: str = None) -> List[Dict[str, Any]]:
+        """
+        Get all routes for a specific tenant with pagination and ordering
+        """
+        stmt = select(DeliveryRoute).where(DeliveryRoute.tenant_id == tenant_id)
+        
+        # Apply ordering if specified
+        if order_by:
+            if 'vrp_optimization_timestamp' in order_by:
+                if 'DESC' in order_by:
+                    stmt = stmt.order_by(DeliveryRoute.vrp_optimization_timestamp.desc())
+                else:
+                    stmt = stmt.order_by(DeliveryRoute.vrp_optimization_timestamp.asc())
+            elif 'route_date' in order_by:
+                if 'DESC' in order_by:
+                    stmt = stmt.order_by(DeliveryRoute.route_date.desc())
+                else:
+                    stmt = stmt.order_by(DeliveryRoute.route_date.asc())
+        
+        # Apply pagination if specified
+        if limit is not None:
+            stmt = stmt.limit(limit)
+        if offset is not None:
+            stmt = stmt.offset(offset)
+        
+        result = await self.db_session.execute(stmt)
+        routes = result.scalars().all()
+        
+        return [{
+            'id': str(route.id),
+            'tenant_id': str(route.tenant_id),
+            'route_number': route.route_number,
+            'route_date': route.route_date,
+            'vehicle_id': route.vehicle_id,
+            'driver_id': route.driver_id,
+            'total_distance_km': route.total_distance_km,
+            'estimated_duration_minutes': route.estimated_duration_minutes,
+            'route_sequence': route.route_sequence,
+            'status': route.status.value if hasattr(route.status, 'value') else route.status,
+            'created_at': route.created_at,
+            'updated_at': route.updated_at,
+            'vrp_optimization_savings': route.vrp_optimization_savings,
+            'vrp_algorithm_version': route.vrp_algorithm_version,
+            'vrp_optimization_timestamp': route.vrp_optimization_timestamp,
+            'vrp_constraints_satisfied': route.vrp_constraints_satisfied,
+            'vrp_objective_value': route.vrp_objective_value
+        } for route in routes]

services/distribution/app/services/distribution_service.py

@@ -302,4 +302,23 @@ class DistributionService:
             
         except Exception as e:
             logger.error(f"Error creating delivery schedule: {e}")
-            raise
+            raise
+
+    # VRP Optimization Service Methods
+    async def get_route_by_id(self, route_id: str) -> Optional[Dict[str, Any]]:
+        """
+        Get a specific delivery route by ID
+        """
+        return await self.route_repository.get_route_by_id(route_id)
+
+    async def update_route_vrp_metrics(self, route_id: str, vrp_metrics: Dict[str, Any]) -> Optional[Dict[str, Any]]:
+        """
+        Update VRP optimization metrics for a route
+        """
+        return await self.route_repository.update_route_vrp_metrics(route_id, vrp_metrics)
+
+    async def get_routes_by_tenant(self, tenant_id: str, limit: int = None, offset: int = None, order_by: str = None) -> List[Dict[str, Any]]:
+        """
+        Get all routes for a specific tenant with pagination and ordering
+        """
+        return await self.route_repository.get_routes_by_tenant(tenant_id, limit, offset, order_by)

services/distribution/app/services/vrp_optimization_service.py

@@ -0,0 +1,357 @@
+"""
+VRP Optimization Service
+Business logic for VRP optimization and metrics management
+"""
+
+from typing import List, Dict, Any, Optional
+from datetime import datetime
+import structlog
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.repositories.delivery_route_repository import DeliveryRouteRepository
+from app.services.routing_optimizer import RoutingOptimizer
+from app.core.database import get_db
+
+logger = structlog.get_logger()
+
+
+class VRPOptimizationService:
+    """
+    Service for VRP optimization operations
+    """
+    
+    def __init__(self, distribution_service: "DistributionService", database_manager: Any):
+        """
+        Initialize VRP optimization service
+        
+        Args:
+            distribution_service: Distribution service instance
+            database_manager: Database manager for session management
+        """
+        self.distribution_service = distribution_service
+        self.database_manager = database_manager
+        self.routing_optimizer = RoutingOptimizer()
+
+    async def optimize_route(
+        self,
+        tenant_id: str,
+        route_id: str,
+        optimization_params: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """
+        Optimize a specific delivery route using VRP
+        
+        Args:
+            tenant_id: Tenant ID
+            route_id: Route ID to optimize
+            optimization_params: Optimization parameters
+        
+        Returns:
+            Optimization result with metrics
+        """
+        try:
+            # Get the current route using distribution service
+            route = await self.distribution_service.get_route_by_id(route_id)
+            if not route:
+                raise ValueError(f"Route {route_id} not found")
+            
+            # Extract deliveries from route sequence
+            deliveries = self._extract_deliveries_from_route(route)
+            
+            # Perform VRP optimization
+            depot_location = optimization_params.get('depot_location', (0.0, 0.0))
+            vehicle_capacity = optimization_params.get('vehicle_capacity_kg', 1000.0)
+            time_limit = optimization_params.get('time_limit_seconds', 30.0)
+            
+            optimization_result = await self.routing_optimizer.optimize_daily_routes(
+                deliveries=deliveries,
+                depot_location=depot_location,
+                vehicle_capacity_kg=vehicle_capacity,
+                time_limit_seconds=time_limit
+            )
+            
+            # Update route with optimization metrics
+            vrp_metrics = {
+                'vrp_optimization_savings': {
+                    'distance_saved_km': optimization_result.get('distance_savings_km', 0.0),
+                    'time_saved_minutes': optimization_result.get('time_savings_minutes', 0.0),
+                    'cost_saved': optimization_result.get('cost_savings', 0.0)
+                },
+                'vrp_algorithm_version': 'or-tools-v1.0',
+                'vrp_optimization_timestamp': datetime.utcnow(),
+                'vrp_constraints_satisfied': optimization_result.get('constraints_satisfied', True),
+                'vrp_objective_value': optimization_result.get('objective_value', 0.0)
+            }
+            
+            # Update the route with VRP metrics using distribution service
+            await self.distribution_service.update_route_vrp_metrics(route_id, vrp_metrics)
+            
+            return {
+                'success': True,
+                'route_id': route_id,
+                'optimization_metrics': vrp_metrics,
+                'optimized_route': optimization_result.get('optimized_route', [])
+            }
+            
+        except Exception as e:
+            logger.error("vrp_optimization_failed", error=str(e), route_id=route_id)
+            raise
+
+    def _extract_deliveries_from_route(self, route: Any) -> List[Dict[str, Any]]:
+        """
+        Extract deliveries from route sequence
+        
+        Args:
+            route: Delivery route object
+        
+        Returns:
+            List of delivery dictionaries
+        """
+        deliveries = []
+        route_sequence = route.route_sequence or []
+        
+        for stop in route_sequence:
+            deliveries.append({
+                'id': stop.get('id', ''),
+                'location': (stop.get('lat', 0.0), stop.get('lng', 0.0)),
+                'weight_kg': stop.get('weight_kg', 0.0),
+                'time_window': stop.get('time_window')
+            })
+        
+        return deliveries
+
+    async def get_route_optimization_metrics(
+        self,
+        tenant_id: str,
+        route_id: str
+    ) -> Dict[str, Any]:
+        """
+        Get VRP optimization metrics for a specific route
+        
+        Args:
+            tenant_id: Tenant ID
+            route_id: Route ID
+        
+        Returns:
+            VRP optimization metrics
+        """
+        route = await self.route_repository.get_route_by_id(route_id)
+        if not route:
+            raise ValueError(f"Route {route_id} not found")
+        
+        return {
+            'vrp_optimization_savings': route.vrp_optimization_savings,
+            'vrp_algorithm_version': route.vrp_algorithm_version,
+            'vrp_optimization_timestamp': route.vrp_optimization_timestamp,
+            'vrp_constraints_satisfied': route.vrp_constraints_satisfied,
+            'vrp_objective_value': route.vrp_objective_value
+        }
+
+    async def get_network_optimization_summary(
+        self,
+        tenant_id: str
+    ) -> Dict[str, Any]:
+        """
+        Get VRP optimization summary across all routes for a tenant
+        
+        Args:
+            tenant_id: Tenant ID
+        
+        Returns:
+            Network optimization summary
+        """
+        routes = await self.route_repository.get_routes_by_tenant(tenant_id)
+        
+        total_optimized = 0
+        total_distance_saved = 0.0
+        total_time_saved = 0.0
+        total_cost_saved = 0.0
+        
+        for route in routes:
+            if route.vrp_optimization_timestamp:
+                total_optimized += 1
+                savings = route.vrp_optimization_savings or {}
+                total_distance_saved += savings.get('distance_saved_km', 0.0)
+                total_time_saved += savings.get('time_saved_minutes', 0.0)
+                total_cost_saved += savings.get('cost_saved', 0.0)
+        
+        return {
+            'total_routes': len(routes),
+            'total_optimized_routes': total_optimized,
+            'optimization_rate': total_optimized / len(routes) if routes else 0.0,
+            'total_distance_saved_km': total_distance_saved,
+            'total_time_saved_minutes': total_time_saved,
+            'total_cost_saved': total_cost_saved,
+            'average_savings_per_route': {
+                'distance_km': total_distance_saved / total_optimized if total_optimized > 0 else 0.0,
+                'time_minutes': total_time_saved / total_optimized if total_optimized > 0 else 0.0,
+                'cost': total_cost_saved / total_optimized if total_optimized > 0 else 0.0
+            }
+        }
+
+    async def batch_optimize_routes(
+        self,
+        tenant_id: str,
+        route_ids: List[str],
+        optimization_params: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """
+        Batch optimize multiple routes
+        
+        Args:
+            tenant_id: Tenant ID
+            route_ids: List of route IDs to optimize
+            optimization_params: Optimization parameters
+        
+        Returns:
+            Batch optimization results
+        """
+        results = []
+        
+        for route_id in route_ids:
+            try:
+                result = await self.optimize_route(tenant_id, route_id, optimization_params)
+                results.append({
+                    'route_id': route_id,
+                    'success': True,
+                    'metrics': result['optimization_metrics']
+                })
+            except Exception as e:
+                results.append({
+                    'route_id': route_id,
+                    'success': False,
+                    'error': str(e)
+                })
+        
+        return {
+            'total_routes': len(route_ids),
+            'successful_optimizations': sum(1 for r in results if r['success']),
+            'failed_optimizations': sum(1 for r in results if not r['success']),
+            'results': results
+        }
+
+    async def validate_optimization_constraints(
+        self,
+        tenant_id: str,
+        route_id: str
+    ) -> Dict[str, Any]:
+        """
+        Validate VRP optimization constraints for a route
+        
+        Args:
+            tenant_id: Tenant ID
+            route_id: Route ID
+        
+        Returns:
+            Constraint validation results
+        """
+        route = await self.route_repository.get_route_by_id(route_id)
+        if not route:
+            raise ValueError(f"Route {route_id} not found")
+        
+        # Check if route has been optimized
+        if not route.vrp_optimization_timestamp:
+            return {
+                'route_id': route_id,
+                'is_optimized': False,
+                'constraints_valid': False,
+                'message': 'Route has not been optimized yet'
+            }
+        
+        # Validate constraints
+        constraints_valid = route.vrp_constraints_satisfied or False
+        
+        return {
+            'route_id': route_id,
+            'is_optimized': True,
+            'constraints_valid': constraints_valid,
+            'vrp_algorithm_version': route.vrp_algorithm_version,
+            'optimization_timestamp': route.vrp_optimization_timestamp
+        }
+
+    async def get_optimization_history(
+        self,
+        tenant_id: str,
+        limit: int = 50,
+        offset: int = 0
+    ) -> Dict[str, Any]:
+        """
+        Get VRP optimization history for a tenant
+        
+        Args:
+            tenant_id: Tenant ID
+            limit: Maximum number of records to return
+            offset: Pagination offset
+        
+        Returns:
+            Optimization history
+        """
+        routes = await self.route_repository.get_routes_by_tenant(
+            tenant_id, 
+            limit=limit, 
+            offset=offset,
+            order_by='vrp_optimization_timestamp DESC'
+        )
+        
+        history = []
+        for route in routes:
+            if route.vrp_optimization_timestamp:
+                history.append({
+                    'route_id': str(route.id),
+                    'route_number': route.route_number,
+                    'optimization_timestamp': route.vrp_optimization_timestamp,
+                    'algorithm_version': route.vrp_algorithm_version,
+                    'constraints_satisfied': route.vrp_constraints_satisfied,
+                    'objective_value': route.vrp_objective_value,
+                    'savings': route.vrp_optimization_savings
+                })
+        
+        return {
+            'total_records': len(history),
+            'history': history
+        }
+
+    async def simulate_optimization(
+        self,
+        tenant_id: str,
+        route_data: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """
+        Simulate VRP optimization without saving results
+        
+        Args:
+            tenant_id: Tenant ID
+            route_data: Route data for simulation
+        
+        Returns:
+            Simulation results
+        """
+        try:
+            deliveries = route_data.get('deliveries', [])
+            depot_location = route_data.get('depot_location', (0.0, 0.0))
+            vehicle_capacity = route_data.get('vehicle_capacity_kg', 1000.0)
+            time_limit = route_data.get('time_limit_seconds', 30.0)
+            
+            simulation_result = await self.routing_optimizer.optimize_daily_routes(
+                deliveries=deliveries,
+                depot_location=depot_location,
+                vehicle_capacity_kg=vehicle_capacity,
+                time_limit_seconds=time_limit
+            )
+            
+            return {
+                'success': True,
+                'simulation_results': simulation_result,
+                'estimated_savings': {
+                    'distance_km': simulation_result.get('distance_savings_km', 0.0),
+                    'time_minutes': simulation_result.get('time_savings_minutes', 0.0),
+                    'cost': simulation_result.get('cost_savings', 0.0)
+                }
+            }
+            
+        except Exception as e:
+            logger.error("vrp_simulation_failed", error=str(e))
+            return {
+                'success': False,
+                'error': str(e)
+            }

services/distribution/migrations/versions/001_initial_schema.py

@@ -41,6 +41,12 @@ def upgrade():
         sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
         sa.Column('created_by', postgresql.UUID(as_uuid=True), nullable=False),
         sa.Column('updated_by', postgresql.UUID(as_uuid=True), nullable=False),
+        # VRP Optimization Metrics
+        sa.Column('vrp_optimization_savings', sa.JSON(), nullable=True),
+        sa.Column('vrp_algorithm_version', sa.String(length=50), nullable=True),
+        sa.Column('vrp_optimization_timestamp', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('vrp_constraints_satisfied', sa.Boolean(), nullable=True),
+        sa.Column('vrp_objective_value', sa.Float(), nullable=True),
         sa.PrimaryKeyConstraint('id'),
         sa.UniqueConstraint('route_number')
     )
@@ -53,6 +59,8 @@ def upgrade():
     op.create_index('ix_delivery_routes_driver_id', 'delivery_routes', ['driver_id'])
     op.create_index('ix_delivery_routes_tenant_date', 'delivery_routes', ['tenant_id', 'route_date'])
     op.create_index('ix_delivery_routes_date_tenant_status', 'delivery_routes', ['route_date', 'tenant_id', 'status'])
+    # VRP Optimization Index
+    op.create_index('ix_delivery_routes_vrp_optimization', 'delivery_routes', ['vrp_optimization_timestamp'], unique=False)
 
 
     # Create shipments table
@@ -156,6 +164,7 @@ def downgrade():
     op.drop_table('shipments')
 
     # Drop indexes for delivery_routes
+    op.drop_index('ix_delivery_routes_vrp_optimization', table_name='delivery_routes')
     op.drop_index('ix_delivery_routes_date_tenant_status', table_name='delivery_routes')
     op.drop_index('ix_delivery_routes_tenant_date', table_name='delivery_routes')
     op.drop_index('ix_delivery_routes_driver_id', table_name='delivery_routes')