Add forecasting service

gateway/app/routes/forecasting.py

@@ -1,9 +1,9 @@
-"""
-Forecasting routes for gateway
-"""
+# ================================================================
+# Gateway Integration: Update gateway/app/routes/forecasting.py
+# ================================================================
+"""Forecasting service routes for API Gateway"""
 
-from fastapi import APIRouter, Request, HTTPException
-from fastapi.responses import JSONResponse
+from fastapi import APIRouter, Request
 import httpx
 import logging
 
@@ -12,55 +12,49 @@ from app.core.config import settings
 logger = logging.getLogger(__name__)
 router = APIRouter()
 
-@router.post("/predict")
-async def create_forecast(request: Request):
-    """Proxy forecast request to forecasting service"""
+@router.api_route("/forecasts/{path:path}", methods=["GET", "POST", "PUT", "DELETE"])
+async def proxy_forecasts(request: Request, path: str):
+    """Proxy forecast requests to forecasting service"""
+    return await _proxy_request(request, f"/api/v1/forecasts/{path}")
+
+@router.api_route("/predictions/{path:path}", methods=["GET", "POST"])
+async def proxy_predictions(request: Request, path: str):
+    """Proxy prediction requests to forecasting service"""
+    return await _proxy_request(request, f"/api/v1/predictions/{path}")
+
+async def _proxy_request(request: Request, target_path: str):
+    """Proxy request to forecasting service with user context"""
     try:
-        body = await request.body()
-        auth_header = request.headers.get("Authorization")
+        url = f"{settings.FORECASTING_SERVICE_URL}{target_path}"
+        
+        # Forward headers and add user context
+        headers = dict(request.headers)
+        headers.pop("host", None)
+        
+        # Add user context from gateway authentication
+        if hasattr(request.state, 'user'):
+            headers["X-User-ID"] = str(request.state.user.get("user_id"))
+            headers["X-User-Email"] = request.state.user.get("email", "")
+            headers["X-Tenant-ID"] = str(request.state.user.get("tenant_id"))
+            headers["X-User-Roles"] = ",".join(request.state.user.get("roles", []))
+        
+        # Get request body if present
+        body = None
+        if request.method in ["POST", "PUT", "PATCH"]:
+            body = await request.body()
         
         async with httpx.AsyncClient(timeout=30.0) as client:
-            response = await client.post(
-                f"{settings.FORECASTING_SERVICE_URL}/predict",
+            response = await client.request(
+                method=request.method,
+                url=url,
+                headers=headers,
                 content=body,
-                headers={
-                    "Content-Type": "application/json",
-                    "Authorization": auth_header
-                }
+                params=request.query_params
             )
             
-            return JSONResponse(
-                status_code=response.status_code,
-                content=response.json()
-            )
+            # Return response
+            return response.json() if response.headers.get("content-type", "").startswith("application/json") else response.text
             
-    except httpx.RequestError as e:
-        logger.error(f"Forecasting service unavailable: {e}")
-        raise HTTPException(
-            status_code=503,
-            detail="Forecasting service unavailable"
-        )
-
-@router.get("/forecasts")
-async def get_forecasts(request: Request):
-    """Get forecasts"""
-    try:
-        auth_header = request.headers.get("Authorization")
-        
-        async with httpx.AsyncClient(timeout=10.0) as client:
-            response = await client.get(
-                f"{settings.FORECASTING_SERVICE_URL}/forecasts",
-                headers={"Authorization": auth_header}
-            )
-            
-            return JSONResponse(
-                status_code=response.status_code,
-                content=response.json()
-            )
-            
-    except httpx.RequestError as e:
-        logger.error(f"Forecasting service unavailable: {e}")
-        raise HTTPException(
-            status_code=503,
-            detail="Forecasting service unavailable"
-        )
+    except Exception as e:
+        logger.error(f"Error proxying to forecasting service: {e}")
+        raise

infrastructure/kubernetes/base/forecasting-service.yaml

@@ -0,0 +1,78 @@
+# ================================================================
+# Kubernetes Deployment: infrastructure/kubernetes/base/forecasting-service.yaml
+# ================================================================
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: forecasting-service
+  labels:
+    app: forecasting-service
+spec:
+  replicas: 2
+  selector:
+    matchLabels:
+      app: forecasting-service
+  template:
+    metadata:
+      labels:
+        app: forecasting-service
+    spec:
+      containers:
+      - name: forecasting-service
+        image: bakery-forecasting/forecasting-service:latest
+        ports:
+        - containerPort: 8000
+        env:
+        - name: DATABASE_URL
+          valueFrom:
+            secretKeyRef:
+              name: forecasting-db-secret
+              key: database-url
+        - name: RABBITMQ_URL
+          valueFrom:
+            secretKeyRef:
+              name: rabbitmq-secret
+              key: url
+        - name: REDIS_URL
+          valueFrom:
+            secretKeyRef:
+              name: redis-secret
+              key: url
+        - name: TRAINING_SERVICE_URL
+          value: "http://training-service:8000"
+        - name: DATA_SERVICE_URL
+          value: "http://data-service:8000"
+        resources:
+          requests:
+            memory: "512Mi"
+            cpu: "250m"
+          limits:
+            memory: "1Gi"
+            cpu: "500m"
+        livenessProbe:
+          httpGet:
+            path: /health
+            port: 8000
+          initialDelaySeconds: 30
+          periodSeconds: 10
+        readinessProbe:
+          httpGet:
+            path: /health
+            port: 8000
+          initialDelaySeconds: 5
+          periodSeconds: 5
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: forecasting-service
+  labels:
+    app: forecasting-service
+spec:
+  selector:
+    app: forecasting-service
+  ports:
+  - port: 8000
+    targetPort: 8000
+  type: ClusterIP
+

infrastructure/monitoring/prometheus/forecasting-service.yml

@@ -0,0 +1,42 @@
+# ================================================================
+# Monitoring Configuration: infrastructure/monitoring/prometheus/forecasting-service.yml
+# ================================================================
+groups:
+- name: forecasting-service
+  rules:
+  - alert: ForecastingServiceDown
+    expr: up{job="forecasting-service"} == 0
+    for: 1m
+    labels:
+      severity: critical
+    annotations:
+      summary: "Forecasting service is down"
+      description: "Forecasting service has been down for more than 1 minute"
+
+  - alert: HighForecastingLatency
+    expr: histogram_quantile(0.95, forecast_processing_time_seconds) > 10
+    for: 5m
+    labels:
+      severity: warning
+    annotations:
+      summary: "High forecasting latency"
+      description: "95th percentile forecasting latency is {{ $value }}s"
+
+  - alert: ForecastingErrorRate
+    expr: rate(forecasting_errors_total[5m]) > 0.1
+    for: 5m
+    labels:
+      severity: critical
+    annotations:
+      summary: "High forecasting error rate"
+      description: "Forecasting error rate is {{ $value }} errors/sec"
+
+  - alert: LowModelAccuracy
+    expr: avg(model_accuracy_score) < 0.7
+    for: 10m
+    labels:
+      severity: warning
+    annotations:
+      summary: "Low model accuracy detected"
+      description: "Average model accuracy is {{ $value }}"
+

services/forecasting/README.md

@@ -0,0 +1,169 @@
+ ================================================================
+# Documentation: services/forecasting/README.md
+# ================================================================
+
+# Forecasting Service
+
+AI-powered demand prediction service for bakery operations in Madrid, Spain.
+
+## Overview
+
+The Forecasting Service is a specialized microservice responsible for generating accurate demand predictions for bakery products. It integrates trained ML models with real-time weather and traffic data to provide actionable forecasts for business planning.
+
+## Features
+
+### Core Functionality
+- **Single Product Forecasting**: Generate predictions for individual products
+- **Batch Forecasting**: Process multiple products and time periods
+- **Real-time Predictions**: On-demand forecasting with external data
+- **Business Rules**: Spanish bakery-specific adjustments
+- **Alert System**: Automated notifications for demand anomalies
+
+### Integration Points
+- **Training Service**: Loads trained Prophet models
+- **Data Service**: Retrieves weather and traffic data
+- **Notification Service**: Sends alerts and reports
+- **Gateway Service**: Authentication and request routing
+
+## API Endpoints
+
+### Forecasts
+- `POST /api/v1/forecasts/single` - Generate single forecast
+- `POST /api/v1/forecasts/batch` - Generate batch forecasts
+- `GET /api/v1/forecasts/list` - List historical forecasts
+- `GET /api/v1/forecasts/alerts` - Get forecast alerts
+- `PUT /api/v1/forecasts/alerts/{id}/acknowledge` - Acknowledge alert
+
+### Predictions  
+- `POST /api/v1/predictions/realtime` - Real-time prediction
+- `GET /api/v1/predictions/quick/{product}` - Quick multi-day forecast
+
+## Business Logic
+
+### Spanish Bakery Rules
+- **Siesta Impact**: Reduced afternoon activity consideration
+- **Weather Adjustments**: Rain reduces traffic, extreme temperatures affect product mix
+- **Holiday Handling**: Spanish holiday calendar integration
+- **Weekend Patterns**: Different demand patterns for weekends
+
+### Business Types
+- **Individual Bakery**: Single location with direct sales
+- **Central Workshop**: Production facility supplying multiple locations
+
+## Configuration
+
+### Environment Variables
+```bash
+# Database
+DATABASE_URL=postgresql+asyncpg://user:pass@host:port/db
+
+# External Services
+TRAINING_SERVICE_URL=http://training-service:8000
+DATA_SERVICE_URL=http://data-service:8000
+
+# Business Rules
+WEEKEND_ADJUSTMENT_FACTOR=0.8
+HOLIDAY_ADJUSTMENT_FACTOR=0.5
+RAIN_IMPACT_FACTOR=0.7
+```
+
+### Performance Settings
+```bash
+MAX_FORECAST_DAYS=30
+PREDICTION_CACHE_TTL_HOURS=6
+FORECAST_BATCH_SIZE=100
+```
+
+## Development
+
+### Setup
+```bash
+cd services/forecasting
+pip install -r requirements.txt
+```
+
+### Testing
+```bash
+pytest tests/ -v --cov=app
+```
+
+### Running Locally
+```bash
+uvicorn app.main:app --reload --port 8000
+```
+
+## Deployment
+
+### Docker
+```bash
+docker build -t forecasting-service .
+docker run -p 8000:8000 forecasting-service
+```
+
+### Kubernetes
+```bash
+kubectl apply -f infrastructure/kubernetes/base/forecasting-service.yaml
+```
+
+## Monitoring
+
+### Metrics
+- `forecasts_generated_total` - Total forecasts generated
+- `predictions_served_total` - Total predictions served  
+- `forecast_processing_time_seconds` - Processing time histogram
+- `active_models_count` - Number of active models
+
+### Health Checks
+- `/health` - Service health status
+- `/metrics` - Prometheus metrics endpoint
+
+## Performance
+
+### Benchmarks
+- **Single Forecast**: < 2 seconds average
+- **Batch Forecasting**: 100 products in < 30 seconds
+- **Concurrent Load**: 95%+ success rate at 20 concurrent requests
+
+### Optimization
+- Model caching for faster predictions
+- Feature preparation optimization
+- Database query optimization
+- Asynchronous external API calls
+
+## Troubleshooting
+
+### Common Issues
+
+1. **No Model Found Error**
+   - Ensure training service has models for tenant/product
+   - Check model training logs in training service
+
+2. **High Prediction Latency**
+   - Monitor model cache hit rate
+   - Check external service response times
+   - Review database query performance
+
+3. **Inaccurate Predictions**
+   - Verify external data quality (weather/traffic)
+   - Check model performance metrics
+   - Review business rule configurations
+
+### Logging
+```bash
+# View service logs
+docker logs forecasting-service
+
+# Debug level logging
+LOG_LEVEL=DEBUG uvicorn app.main:app
+```
+
+## Contributing
+
+1. Follow the existing code structure and patterns
+2. Add tests for new functionality
+3. Update documentation for API changes
+4. Ensure performance benchmarks are maintained
+
+## License
+
+This service is part of the Bakery Forecasting Platform - MIT License

services/forecasting/app/api/forecast.py

@@ -1,72 +0,0 @@
-from fastapi import APIRouter, Depends, HTTPException, Query, BackgroundTasks
-from typing import List, Optional, Dict, Any
-from datetime import datetime, date
-import structlog
-
-from app.schemas.forecast import (
-    ForecastRequest,
-    ForecastResponse,
-    BatchForecastRequest,
-    ForecastPerformanceResponse
-)
-from app.services.forecast_service import ForecastService
-from app.services.messaging import publish_forecast_generated
-
-# Import unified authentication
-from shared.auth.decorators import (
-    get_current_user_dep,
-    get_current_tenant_id_dep
-)
-
-router = APIRouter(prefix="/forecasts", tags=["forecasting"])
-logger = structlog.get_logger()
-
-@router.post("/generate", response_model=ForecastResponse)
-async def generate_forecast(
-    request: ForecastRequest,
-    background_tasks: BackgroundTasks,
-    tenant_id: str = Depends(get_current_tenant_id_dep),
-    current_user: Dict[str, Any] = Depends(get_current_user_dep),
-):
-    """Generate forecast for products"""
-    try:
-        logger.info("Generating forecast",
-                   tenant_id=tenant_id,
-                   user_id=current_user["user_id"],
-                   products=len(request.products) if request.products else "all")
-        
-        forecast_service = ForecastService()
-        
-        # Ensure products belong to tenant
-        if request.products:
-            valid_products = await forecast_service.validate_products(
-                tenant_id, request.products
-            )
-            if len(valid_products) != len(request.products):
-                raise HTTPException(
-                    status_code=400,
-                    detail="Some products not found or not accessible"
-                )
-        
-        # Generate forecast
-        forecast = await forecast_service.generate_forecast(
-            tenant_id=tenant_id,
-            request=request,
-            user_id=current_user["user_id"]
-        )
-        
-        # Publish event
-        background_tasks.add_task(
-            publish_forecast_generated,
-            forecast_id=forecast.id,
-            tenant_id=tenant_id,
-            user_id=current_user["user_id"]
-        )
-        
-        return forecast
-        
-    except HTTPException:
-        raise
-    except Exception as e:
-        logger.error("Failed to generate forecast", error=str(e))
-        raise HTTPException(status_code=500, detail=str(e))

services/forecasting/app/api/forecasts.py

@@ -0,0 +1,326 @@
+# ================================================================
+# services/forecasting/app/api/forecasts.py
+# ================================================================
+"""
+Forecast API endpoints
+"""
+
+import structlog
+from fastapi import APIRouter, Depends, HTTPException, status, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import List, Optional
+from datetime import date
+
+from app.core.database import get_db
+from app.core.auth import get_current_user_from_headers
+from app.services.forecasting_service import ForecastingService
+from app.schemas.forecasts import (
+    ForecastRequest, ForecastResponse, BatchForecastRequest, 
+    BatchForecastResponse, AlertResponse
+)
+from app.models.forecasts import Forecast, PredictionBatch, ForecastAlert
+
+logger = structlog.get_logger()
+router = APIRouter()
+
+# Initialize service
+forecasting_service = ForecastingService()
+
+@router.post("/single", response_model=ForecastResponse)
+async def create_single_forecast(
+    request: ForecastRequest,
+    db: AsyncSession = Depends(get_db),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Generate a single product forecast"""
+    
+    try:
+        # Verify tenant access
+        if str(request.tenant_id) != str(current_user.get("tenant_id")):
+            raise HTTPException(
+                status_code=status.HTTP_403_FORBIDDEN,
+                detail="Access denied to this tenant"
+            )
+        
+        # Generate forecast
+        forecast = await forecasting_service.generate_forecast(request, db)
+        
+        # Convert to response model
+        return ForecastResponse(
+            id=str(forecast.id),
+            tenant_id=str(forecast.tenant_id),
+            product_name=forecast.product_name,
+            location=forecast.location,
+            forecast_date=forecast.forecast_date,
+            predicted_demand=forecast.predicted_demand,
+            confidence_lower=forecast.confidence_lower,
+            confidence_upper=forecast.confidence_upper,
+            confidence_level=forecast.confidence_level,
+            model_id=str(forecast.model_id),
+            model_version=forecast.model_version,
+            algorithm=forecast.algorithm,
+            business_type=forecast.business_type,
+            is_holiday=forecast.is_holiday,
+            is_weekend=forecast.is_weekend,
+            day_of_week=forecast.day_of_week,
+            weather_temperature=forecast.weather_temperature,
+            weather_precipitation=forecast.weather_precipitation,
+            weather_description=forecast.weather_description,
+            traffic_volume=forecast.traffic_volume,
+            created_at=forecast.created_at,
+            processing_time_ms=forecast.processing_time_ms,
+            features_used=forecast.features_used
+        )
+        
+    except ValueError as e:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=str(e)
+        )
+    except Exception as e:
+        logger.error("Error creating single forecast", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+
+@router.post("/batch", response_model=BatchForecastResponse)
+async def create_batch_forecast(
+    request: BatchForecastRequest,
+    db: AsyncSession = Depends(get_db),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Generate batch forecasts for multiple products"""
+    
+    try:
+        # Verify tenant access
+        if str(request.tenant_id) != str(current_user.get("tenant_id")):
+            raise HTTPException(
+                status_code=status.HTTP_403_FORBIDDEN,
+                detail="Access denied to this tenant"
+            )
+        
+        # Generate batch forecast
+        batch = await forecasting_service.generate_batch_forecast(request, db)
+        
+        # Get associated forecasts
+        forecasts = await forecasting_service.get_forecasts(
+            tenant_id=request.tenant_id,
+            location=request.location,
+            db=db
+        )
+        
+        # Convert forecasts to response models
+        forecast_responses = []
+        for forecast in forecasts[:batch.total_products]:  # Limit to batch size
+            forecast_responses.append(ForecastResponse(
+                id=str(forecast.id),
+                tenant_id=str(forecast.tenant_id),
+                product_name=forecast.product_name,
+                location=forecast.location,
+                forecast_date=forecast.forecast_date,
+                predicted_demand=forecast.predicted_demand,
+                confidence_lower=forecast.confidence_lower,
+                confidence_upper=forecast.confidence_upper,
+                confidence_level=forecast.confidence_level,
+                model_id=str(forecast.model_id),
+                model_version=forecast.model_version,
+                algorithm=forecast.algorithm,
+                business_type=forecast.business_type,
+                is_holiday=forecast.is_holiday,
+                is_weekend=forecast.is_weekend,
+                day_of_week=forecast.day_of_week,
+                weather_temperature=forecast.weather_temperature,
+                weather_precipitation=forecast.weather_precipitation,
+                weather_description=forecast.weather_description,
+                traffic_volume=forecast.traffic_volume,
+                created_at=forecast.created_at,
+                processing_time_ms=forecast.processing_time_ms,
+                features_used=forecast.features_used
+            ))
+        
+        return BatchForecastResponse(
+            id=str(batch.id),
+            tenant_id=str(batch.tenant_id),
+            batch_name=batch.batch_name,
+            status=batch.status,
+            total_products=batch.total_products,
+            completed_products=batch.completed_products,
+            failed_products=batch.failed_products,
+            requested_at=batch.requested_at,
+            completed_at=batch.completed_at,
+            processing_time_ms=batch.processing_time_ms,
+            forecasts=forecast_responses
+        )
+        
+    except ValueError as e:
+        raise HTTPException(
+            status_code=status.HTTP_400_BAD_REQUEST,
+            detail=str(e)
+        )
+    except Exception as e:
+        logger.error("Error creating batch forecast", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+
+@router.get("/list", response_model=List[ForecastResponse])
+async def list_forecasts(
+    location: str,
+    start_date: Optional[date] = Query(None),
+    end_date: Optional[date] = Query(None),
+    product_name: Optional[str] = Query(None),
+    db: AsyncSession = Depends(get_db),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """List forecasts with filtering"""
+    
+    try:
+        tenant_id = str(current_user.get("tenant_id"))
+        
+        # Get forecasts
+        forecasts = await forecasting_service.get_forecasts(
+            tenant_id=tenant_id,
+            location=location,
+            start_date=start_date,
+            end_date=end_date,
+            product_name=product_name,
+            db=db
+        )
+        
+        # Convert to response models
+        return [
+            ForecastResponse(
+                id=str(forecast.id),
+                tenant_id=str(forecast.tenant_id),
+                product_name=forecast.product_name,
+                location=forecast.location,
+                forecast_date=forecast.forecast_date,
+                predicted_demand=forecast.predicted_demand,
+                confidence_lower=forecast.confidence_lower,
+                confidence_upper=forecast.confidence_upper,
+                confidence_level=forecast.confidence_level,
+                model_id=str(forecast.model_id),
+                model_version=forecast.model_version,
+                algorithm=forecast.algorithm,
+                business_type=forecast.business_type,
+                is_holiday=forecast.is_holiday,
+                is_weekend=forecast.is_weekend,
+                day_of_week=forecast.day_of_week,
+                weather_temperature=forecast.weather_temperature,
+                weather_precipitation=forecast.weather_precipitation,
+                weather_description=forecast.weather_description,
+                traffic_volume=forecast.traffic_volume,
+                created_at=forecast.created_at,
+                processing_time_ms=forecast.processing_time_ms,
+                features_used=forecast.features_used
+            )
+            for forecast in forecasts
+        ]
+        
+    except Exception as e:
+        logger.error("Error listing forecasts", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+
+@router.get("/alerts", response_model=List[AlertResponse])
+async def get_forecast_alerts(
+    active_only: bool = Query(True),
+    db: AsyncSession = Depends(get_db),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Get forecast alerts for tenant"""
+    
+    try:
+        from sqlalchemy import select, and_
+        
+        tenant_id = current_user.get("tenant_id")
+        
+        # Build query
+        query = select(ForecastAlert).where(
+            ForecastAlert.tenant_id == tenant_id
+        )
+        
+        if active_only:
+            query = query.where(ForecastAlert.is_active == True)
+        
+        query = query.order_by(ForecastAlert.created_at.desc())
+        
+        # Execute query
+        result = await db.execute(query)
+        alerts = result.scalars().all()
+        
+        # Convert to response models
+        return [
+            AlertResponse(
+                id=str(alert.id),
+                tenant_id=str(alert.tenant_id),
+                forecast_id=str(alert.forecast_id),
+                alert_type=alert.alert_type,
+                severity=alert.severity,
+                message=alert.message,
+                is_active=alert.is_active,
+                created_at=alert.created_at,
+                acknowledged_at=alert.acknowledged_at,
+                notification_sent=alert.notification_sent
+            )
+            for alert in alerts
+        ]
+        
+    except Exception as e:
+        logger.error("Error getting forecast alerts", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+
+@router.put("/alerts/{alert_id}/acknowledge")
+async def acknowledge_alert(
+    alert_id: str,
+    db: AsyncSession = Depends(get_db),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Acknowledge a forecast alert"""
+    
+    try:
+        from sqlalchemy import select, update
+        from datetime import datetime
+        
+        tenant_id = current_user.get("tenant_id")
+        
+        # Get alert
+        result = await db.execute(
+            select(ForecastAlert).where(
+                and_(
+                    ForecastAlert.id == alert_id,
+                    ForecastAlert.tenant_id == tenant_id
+                )
+            )
+        )
+        alert = result.scalar_one_or_none()
+        
+        if not alert:
+            raise HTTPException(
+                status_code=status.HTTP_404_NOT_FOUND,
+                detail="Alert not found"
+            )
+        
+        # Update alert
+        alert.acknowledged_at = datetime.now()
+        alert.is_active = False
+        
+        await db.commit()
+        
+        return {"message": "Alert acknowledged successfully"}
+        
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error("Error acknowledging alert", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )

services/forecasting/app/api/predictions.py

@@ -0,0 +1,141 @@
+# ================================================================
+# services/forecasting/app/api/predictions.py
+# ================================================================
+"""
+Prediction API endpoints - Real-time prediction capabilities
+"""
+
+import structlog
+from fastapi import APIRouter, Depends, HTTPException, status, Query
+from sqlalchemy.ext.asyncio import AsyncSession
+from typing import List, Dict, Any
+from datetime import date, datetime, timedelta
+
+from app.core.database import get_db
+from app.core.auth import get_current_user_from_headers
+from app.services.prediction_service import PredictionService
+from app.schemas.forecasts import ForecastRequest
+
+logger = structlog.get_logger()
+router = APIRouter()
+
+# Initialize service
+prediction_service = PredictionService()
+
+@router.post("/realtime")
+async def get_realtime_prediction(
+    product_name: str,
+    location: str,
+    forecast_date: date,
+    features: Dict[str, Any],
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Get real-time prediction without storing in database"""
+    
+    try:
+        tenant_id = str(current_user.get("tenant_id"))
+        
+        # Get latest model
+        from app.services.forecasting_service import ForecastingService
+        forecasting_service = ForecastingService()
+        
+        model_info = await forecasting_service._get_latest_model(
+            tenant_id, product_name, location
+        )
+        
+        if not model_info:
+            raise HTTPException(
+                status_code=status.HTTP_404_NOT_FOUND,
+                detail=f"No trained model found for {product_name}"
+            )
+        
+        # Generate prediction
+        prediction = await prediction_service.predict(
+            model_id=model_info["model_id"],
+            features=features,
+            confidence_level=0.8
+        )
+        
+        return {
+            "product_name": product_name,
+            "location": location,
+            "forecast_date": forecast_date,
+            "predicted_demand": prediction["demand"],
+            "confidence_lower": prediction["lower_bound"],
+            "confidence_upper": prediction["upper_bound"],
+            "model_id": model_info["model_id"],
+            "model_version": model_info["version"],
+            "generated_at": datetime.now(),
+            "features_used": features
+        }
+        
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error("Error getting realtime prediction", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+
+@router.get("/quick/{product_name}")
+async def get_quick_prediction(
+    product_name: str,
+    location: str = Query(...),
+    days_ahead: int = Query(1, ge=1, le=7),
+    current_user: dict = Depends(get_current_user_from_headers)
+):
+    """Get quick prediction for next few days"""
+    
+    try:
+        tenant_id = str(current_user.get("tenant_id"))
+        
+        # Generate predictions for the next N days
+        predictions = []
+        
+        for day in range(1, days_ahead + 1):
+            forecast_date = date.today() + timedelta(days=day)
+            
+            # Prepare basic features
+            features = {
+                "date": forecast_date.isoformat(),
+                "day_of_week": forecast_date.weekday(),
+                "is_weekend": forecast_date.weekday() >= 5,
+                "business_type": "individual"
+            }
+            
+            # Get model and predict
+            from app.services.forecasting_service import ForecastingService
+            forecasting_service = ForecastingService()
+            
+            model_info = await forecasting_service._get_latest_model(
+                tenant_id, product_name, location
+            )
+            
+            if model_info:
+                prediction = await prediction_service.predict(
+                    model_id=model_info["model_id"],
+                    features=features
+                )
+                
+                predictions.append({
+                    "date": forecast_date,
+                    "predicted_demand": prediction["demand"],
+                    "confidence_lower": prediction["lower_bound"],
+                    "confidence_upper": prediction["upper_bound"]
+                })
+        
+        return {
+            "product_name": product_name,
+            "location": location,
+            "predictions": predictions,
+            "generated_at": datetime.now()
+        }
+        
+    except Exception as e:
+        logger.error("Error getting quick prediction", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_500_INTERNAL_SERVER_ERROR,
+            detail="Internal server error"
+        )
+

services/forecasting/app/core/auth.py

@@ -1,22 +1,48 @@
+# ================================================================
+# services/forecasting/app/core/auth.py
+# ================================================================
 """
-Authentication configuration for forecasting service
+Authentication utilities for forecasting service
 """
 
-from shared.auth.jwt_handler import JWTHandler
-from shared.auth.decorators import require_auth, require_role
-from app.core.config import settings
+import structlog
+from fastapi import HTTPException, status, Request
+from typing import Dict, Any, Optional
 
-# Initialize JWT handler
-jwt_handler = JWTHandler(
-    secret_key=settings.JWT_SECRET_KEY,
-    algorithm=settings.JWT_ALGORITHM,
-    access_token_expire_minutes=settings.JWT_ACCESS_TOKEN_EXPIRE_MINUTES
-)
+logger = structlog.get_logger()
 
-# Export commonly used functions
-verify_token = jwt_handler.verify_token
-create_access_token = jwt_handler.create_access_token
-get_current_user = jwt_handler.get_current_user
+async def get_current_user_from_headers(request: Request) -> Dict[str, Any]:
+    """
+    Get current user from gateway headers
+    Gateway middleware adds user context to headers after JWT verification
+    """
+    
+    try:
+        # Extract user information from headers set by API Gateway
+        user_id = request.headers.get("X-User-ID")
+        user_email = request.headers.get("X-User-Email")
+        tenant_id = request.headers.get("X-Tenant-ID")
+        user_roles = request.headers.get("X-User-Roles", "").split(",")
+        
+        if not user_id or not tenant_id:
+            raise HTTPException(
+                status_code=status.HTTP_401_UNAUTHORIZED,
+                detail="Authentication required"
+            )
+        
+        return {
+            "user_id": user_id,
+            "email": user_email,
+            "tenant_id": tenant_id,
+            "roles": [role.strip() for role in user_roles if role.strip()]
+        }
+        
+    except HTTPException:
+        raise
+    except Exception as e:
+        logger.error("Error extracting user from headers", error=str(e))
+        raise HTTPException(
+            status_code=status.HTTP_401_UNAUTHORIZED,
+            detail="Invalid authentication"
+        )
 
-# Export decorators
-__all__ = ['verify_token', 'create_access_token', 'get_current_user', 'require_auth', 'require_role']

services/forecasting/app/core/database.py

@@ -1,12 +1,73 @@
+# ================================================================
+# services/forecasting/app/core/database.py
+# ================================================================
 """
 Database configuration for forecasting service
 """
 
-from shared.database.base import DatabaseManager
+import structlog
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from sqlalchemy.pool import NullPool
+from sqlalchemy import text
+
 from app.core.config import settings
+from shared.database.base import Base
 
-# Initialize database manager
-database_manager = DatabaseManager(settings.DATABASE_URL)
+logger = structlog.get_logger()
 
-# Alias for convenience
-get_db = database_manager.get_db
+# Create async engine
+engine = create_async_engine(
+    settings.DATABASE_URL,
+    poolclass=NullPool,
+    echo=settings.DEBUG,
+    future=True
+)
+
+# Create session factory
+AsyncSessionLocal = async_sessionmaker(
+    engine,
+    class_=AsyncSession,
+    expire_on_commit=False,
+    autoflush=False,
+    autocommit=False
+)
+
+class DatabaseManager:
+    """Database management operations"""
+    
+    async def create_tables(self):
+        """Create database tables"""
+        async with engine.begin() as conn:
+            await conn.run_sync(Base.metadata.create_all)
+        logger.info("Forecasting database tables created successfully")
+    
+    async def get_session(self) -> AsyncSession:
+        """Get database session"""
+        async with AsyncSessionLocal() as session:
+            try:
+                yield session
+                await session.commit()
+            except Exception as e:
+                await session.rollback()
+                logger.error(f"Database session error: {e}")
+                raise
+            finally:
+                await session.close()
+
+# Global database manager instance
+database_manager = DatabaseManager()
+
+async def get_db() -> AsyncSession:
+    """Database dependency"""
+    async for session in database_manager.get_session():
+        yield session
+
+async def get_db_health() -> bool:
+    """Check database health"""
+    try:
+        async with AsyncSessionLocal() as session:
+            await session.execute(text("SELECT 1"))
+            return True
+    except Exception as e:
+        logger.error(f"Database health check failed: {e}")
+        return False

services/forecasting/app/main.py

@@ -1,61 +1,116 @@
+# ================================================================
+# services/forecasting/app/main.py
+# ================================================================
 """
-uLuforecasting Service
+Forecasting Service Main Application
+Demand prediction and forecasting service for bakery operations
 """
 
 import structlog
-from fastapi import FastAPI
+from contextlib import asynccontextmanager
+from fastapi import FastAPI, Request
 from fastapi.middleware.cors import CORSMiddleware
+from fastapi.responses import JSONResponse
 
 from app.core.config import settings
-from app.core.database import database_manager
+from app.core.database import database_manager, get_db_health
+from app.api import forecasts, predictions
+from app.services.messaging import setup_messaging, cleanup_messaging
 from shared.monitoring.logging import setup_logging
 from shared.monitoring.metrics import MetricsCollector
 
-# Setup logging
-setup_logging("forecasting-service", "INFO")
+# Setup structured logging
+setup_logging("forecasting-service", settings.LOG_LEVEL)
 logger = structlog.get_logger()
 
-# Create FastAPI app
-app = FastAPI(
-    title="uLuforecasting Service",
-    description="uLuforecasting service for bakery forecasting",
-    version="1.0.0"
-)
-
 # Initialize metrics collector
 metrics_collector = MetricsCollector("forecasting-service")
 
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    """Application lifespan manager for startup and shutdown events"""
+    # Startup
+    logger.info("Starting Forecasting Service", version="1.0.0")
+    
+    try:
+        # Initialize database
+        logger.info("Initializing database connection")
+        await database_manager.create_tables()
+        logger.info("Database initialized successfully")
+        
+        # Initialize messaging
+        logger.info("Setting up messaging")
+        await setup_messaging()
+        logger.info("Messaging initialized")
+        
+        # Register custom metrics
+        metrics_collector.register_counter("forecasts_generated_total", "Total forecasts generated")
+        metrics_collector.register_counter("predictions_served_total", "Total predictions served")
+        metrics_collector.register_histogram("forecast_processing_time_seconds", "Time to process forecast request")
+        metrics_collector.register_gauge("active_models_count", "Number of active models")
+        
+        # Start metrics server
+        metrics_collector.start_metrics_server(8080)
+        
+        logger.info("Forecasting Service started successfully")
+        
+        yield
+        
+    except Exception as e:
+        logger.error("Failed to start Forecasting Service", error=str(e))
+        raise
+    finally:
+        # Shutdown
+        logger.info("Shutting down Forecasting Service")
+        
+        try:
+            await cleanup_messaging()
+            logger.info("Messaging cleanup completed")
+        except Exception as e:
+            logger.error("Error during messaging cleanup", error=str(e))
+
+# Create FastAPI app with lifespan
+app = FastAPI(
+    title="Bakery Forecasting Service",
+    description="AI-powered demand prediction and forecasting service for bakery operations",
+    version="1.0.0",
+    docs_url="/docs",
+    redoc_url="/redoc",
+    lifespan=lifespan
+)
+
 # CORS middleware
 app.add_middleware(
     CORSMiddleware,
-    allow_origins=["*"],
+    allow_origins=settings.CORS_ORIGINS_LIST,
     allow_credentials=True,
     allow_methods=["*"],
     allow_headers=["*"],
 )
 
-@app.on_event("startup")
-async def startup_event():
-    """Application startup"""
-    logger.info("Starting uLuforecasting Service")
-    
-    # Create database tables
-    await database_manager.create_tables()
-    
-    # Start metrics server
-    metrics_collector.start_metrics_server(8080)
-    
-    logger.info("uLuforecasting Service started successfully")
+# Include API routers
+app.include_router(forecasts.router, prefix="/api/v1/forecasts", tags=["forecasts"])
+app.include_router(predictions.router, prefix="/api/v1/predictions", tags=["predictions"])
 
 @app.get("/health")
 async def health_check():
     """Health check endpoint"""
+    db_health = await get_db_health()
+    
     return {
-        "status": "healthy",
+        "status": "healthy" if db_health else "unhealthy",
         "service": "forecasting-service",
-        "version": "1.0.0"
+        "version": "1.0.0",
+        "database": "connected" if db_health else "disconnected",
+        "timestamp": structlog.get_logger().info("Health check requested")
     }
 
+@app.get("/metrics")
+async def get_metrics():
+    """Metrics endpoint for Prometheus"""
+    return metrics_collector.generate_latest()
+
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(app, host="0.0.0.0", port=8000)
+

services/forecasting/app/ml/model_loader.py

@@ -0,0 +1,101 @@
+# ================================================================
+# services/forecasting/app/ml/model_loader.py
+# ================================================================
+"""
+Model loading and management utilities
+"""
+
+import structlog
+from typing import Dict, Any, Optional
+import pickle
+import json
+from pathlib import Path
+from datetime import datetime
+import httpx
+
+from app.core.config import settings
+
+logger = structlog.get_logger()
+
+class ModelLoader:
+    """
+    Utility class for loading and managing ML models
+    """
+    
+    def __init__(self):
+        self.model_cache = {}
+        self.metadata_cache = {}
+    
+    async def load_model_with_metadata(self, model_id: str) -> Dict[str, Any]:
+        """Load model along with its metadata"""
+        
+        try:
+            # Get model metadata first
+            metadata = await self._get_model_metadata(model_id)
+            
+            if not metadata:
+                return None
+            
+            # Load the actual model
+            model = await self._load_model_binary(model_id)
+            
+            if not model:
+                return None
+            
+            return {
+                "model": model,
+                "metadata": metadata,
+                "loaded_at": datetime.now()
+            }
+            
+        except Exception as e:
+            logger.error("Error loading model with metadata", 
+                        model_id=model_id, 
+                        error=str(e))
+            return None
+    
+    async def _get_model_metadata(self, model_id: str) -> Optional[Dict[str, Any]]:
+        """Get model metadata from training service"""
+        
+        try:
+            async with httpx.AsyncClient() as client:
+                response = await client.get(
+                    f"{settings.TRAINING_SERVICE_URL}/api/v1/models/{model_id}/metadata",
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    return response.json()
+                else:
+                    logger.warning("Model metadata not found", 
+                                 model_id=model_id,
+                                 status_code=response.status_code)
+                    return None
+                    
+        except Exception as e:
+            logger.error("Error getting model metadata", error=str(e))
+            return None
+    
+    async def _load_model_binary(self, model_id: str):
+        """Load model binary from training service"""
+        
+        try:
+            async with httpx.AsyncClient(timeout=60.0) as client:
+                response = await client.get(
+                    f"{settings.TRAINING_SERVICE_URL}/api/v1/models/{model_id}/download",
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    model = pickle.loads(response.content)
+                    return model
+                else:
+                    logger.error("Failed to download model binary", 
+                               model_id=model_id,
+                               status_code=response.status_code)
+                    return None
+                    
+        except Exception as e:
+            logger.error("Error loading model binary", error=str(e))
+            return None
+

services/forecasting/app/ml/predictor.py

@@ -0,0 +1,305 @@
+# ================================================================
+# services/forecasting/app/ml/predictor.py
+# ================================================================
+"""
+Enhanced predictor module with advanced forecasting capabilities
+"""
+
+import structlog
+from typing import Dict, List, Any, Optional, Tuple
+import pandas as pd
+import numpy as np
+from datetime import datetime, date, timedelta
+import pickle
+import json
+
+from app.core.config import settings
+from shared.monitoring.metrics import MetricsCollector
+
+logger = structlog.get_logger()
+metrics = MetricsCollector("forecasting-service")
+
+class BakeryPredictor:
+    """
+    Advanced predictor for bakery demand forecasting
+    Handles Prophet models and business-specific logic
+    """
+    
+    def __init__(self):
+        self.model_cache = {}
+        self.business_rules = BakeryBusinessRules()
+    
+    async def predict_demand(self, model, features: Dict[str, Any], 
+                           business_type: str = "individual") -> Dict[str, float]:
+        """Generate demand prediction with business rules applied"""
+        
+        try:
+            # Generate base prediction
+            base_prediction = await self._generate_base_prediction(model, features)
+            
+            # Apply business rules
+            adjusted_prediction = self.business_rules.apply_rules(
+                base_prediction, features, business_type
+            )
+            
+            # Add uncertainty estimation
+            final_prediction = self._add_uncertainty_bands(adjusted_prediction, features)
+            
+            return final_prediction
+            
+        except Exception as e:
+            logger.error("Error in demand prediction", error=str(e))
+            raise
+    
+    async def _generate_base_prediction(self, model, features: Dict[str, Any]) -> Dict[str, float]:
+        """Generate base prediction from Prophet model"""
+        
+        try:
+            # Convert features to Prophet DataFrame
+            df = self._prepare_prophet_dataframe(features)
+            
+            # Generate forecast
+            forecast = model.predict(df)
+            
+            if len(forecast) > 0:
+                row = forecast.iloc[0]
+                return {
+                    "yhat": float(row['yhat']),
+                    "yhat_lower": float(row['yhat_lower']),
+                    "yhat_upper": float(row['yhat_upper']),
+                    "trend": float(row.get('trend', 0)),
+                    "seasonal": float(row.get('seasonal', 0)),
+                    "weekly": float(row.get('weekly', 0)),
+                    "yearly": float(row.get('yearly', 0)),
+                    "holidays": float(row.get('holidays', 0))
+                }
+            else:
+                raise ValueError("No prediction generated from model")
+                
+        except Exception as e:
+            logger.error("Error generating base prediction", error=str(e))
+            raise
+    
+    def _prepare_prophet_dataframe(self, features: Dict[str, Any]) -> pd.DataFrame:
+        """Convert features to Prophet-compatible DataFrame"""
+        
+        try:
+            # Create base DataFrame
+            df = pd.DataFrame({
+                'ds': [pd.to_datetime(features['date'])]
+            })
+            
+            # Add regressor features
+            feature_mapping = {
+                'temperature': 'temperature',
+                'precipitation': 'precipitation', 
+                'humidity': 'humidity',
+                'wind_speed': 'wind_speed',
+                'traffic_volume': 'traffic_volume',
+                'pedestrian_count': 'pedestrian_count'
+            }
+            
+            for feature_key, df_column in feature_mapping.items():
+                if feature_key in features and features[feature_key] is not None:
+                    df[df_column] = float(features[feature_key])
+                else:
+                    df[df_column] = 0.0
+            
+            # Add categorical features
+            df['day_of_week'] = int(features.get('day_of_week', 0))
+            df['is_weekend'] = int(features.get('is_weekend', False))
+            df['is_holiday'] = int(features.get('is_holiday', False))
+            
+            # Business type
+            business_type = features.get('business_type', 'individual')
+            df['is_central_workshop'] = int(business_type == 'central_workshop')
+            
+            return df
+            
+        except Exception as e:
+            logger.error("Error preparing Prophet dataframe", error=str(e))
+            raise
+    
+    def _add_uncertainty_bands(self, prediction: Dict[str, float], 
+                             features: Dict[str, Any]) -> Dict[str, float]:
+        """Add uncertainty estimation based on external factors"""
+        
+        try:
+            base_demand = prediction["yhat"]
+            base_lower = prediction["yhat_lower"]
+            base_upper = prediction["yhat_upper"]
+            
+            # Weather uncertainty
+            weather_uncertainty = self._calculate_weather_uncertainty(features)
+            
+            # Holiday uncertainty
+            holiday_uncertainty = self._calculate_holiday_uncertainty(features)
+            
+            # Weekend uncertainty
+            weekend_uncertainty = self._calculate_weekend_uncertainty(features)
+            
+            # Total uncertainty factor
+            total_uncertainty = 1.0 + weather_uncertainty + holiday_uncertainty + weekend_uncertainty
+            
+            # Adjust bounds
+            uncertainty_range = (base_upper - base_lower) * total_uncertainty
+            center_point = base_demand
+            
+            adjusted_lower = center_point - (uncertainty_range / 2)
+            adjusted_upper = center_point + (uncertainty_range / 2)
+            
+            return {
+                "demand": max(0, base_demand),  # Never predict negative demand
+                "lower_bound": max(0, adjusted_lower),
+                "upper_bound": adjusted_upper,
+                "uncertainty_factor": total_uncertainty,
+                "trend": prediction.get("trend", 0),
+                "seasonal": prediction.get("seasonal", 0),
+                "holiday_effect": prediction.get("holidays", 0)
+            }
+            
+        except Exception as e:
+            logger.error("Error adding uncertainty bands", error=str(e))
+            # Return basic prediction if uncertainty calculation fails
+            return {
+                "demand": max(0, prediction["yhat"]),
+                "lower_bound": max(0, prediction["yhat_lower"]),
+                "upper_bound": prediction["yhat_upper"],
+                "uncertainty_factor": 1.0
+            }
+    
+    def _calculate_weather_uncertainty(self, features: Dict[str, Any]) -> float:
+        """Calculate weather-based uncertainty"""
+        
+        uncertainty = 0.0
+        
+        # Temperature extremes add uncertainty
+        temp = features.get('temperature')
+        if temp is not None:
+            if temp < settings.TEMPERATURE_THRESHOLD_COLD or temp > settings.TEMPERATURE_THRESHOLD_HOT:
+                uncertainty += 0.1
+        
+        # Rain adds uncertainty
+        precipitation = features.get('precipitation')
+        if precipitation is not None and precipitation > 0:
+            uncertainty += 0.05 * min(precipitation, 10)  # Cap at 50mm
+        
+        return uncertainty
+    
+    def _calculate_holiday_uncertainty(self, features: Dict[str, Any]) -> float:
+        """Calculate holiday-based uncertainty"""
+        
+        if features.get('is_holiday', False):
+            return 0.2  # 20% additional uncertainty on holidays
+        return 0.0
+    
+    def _calculate_weekend_uncertainty(self, features: Dict[str, Any]) -> float:
+        """Calculate weekend-based uncertainty"""
+        
+        if features.get('is_weekend', False):
+            return 0.1  # 10% additional uncertainty on weekends
+        return 0.0
+
+
+class BakeryBusinessRules:
+    """
+    Business rules for Spanish bakeries
+    Applies domain-specific adjustments to predictions
+    """
+    
+    def apply_rules(self, prediction: Dict[str, float], features: Dict[str, Any], 
+                   business_type: str) -> Dict[str, float]:
+        """Apply all business rules to prediction"""
+        
+        adjusted_prediction = prediction.copy()
+        
+        # Apply weather rules
+        adjusted_prediction = self._apply_weather_rules(adjusted_prediction, features)
+        
+        # Apply time-based rules
+        adjusted_prediction = self._apply_time_rules(adjusted_prediction, features)
+        
+        # Apply business type rules
+        adjusted_prediction = self._apply_business_type_rules(adjusted_prediction, business_type)
+        
+        # Apply Spanish-specific rules
+        adjusted_prediction = self._apply_spanish_rules(adjusted_prediction, features)
+        
+        return adjusted_prediction
+    
+    def _apply_weather_rules(self, prediction: Dict[str, float], 
+                           features: Dict[str, Any]) -> Dict[str, float]:
+        """Apply weather-based business rules"""
+        
+        # Rain reduces foot traffic
+        precipitation = features.get('precipitation', 0)
+        if precipitation > 0:
+            rain_factor = settings.RAIN_IMPACT_FACTOR
+            prediction["yhat"] *= rain_factor
+            prediction["yhat_lower"] *= rain_factor
+            prediction["yhat_upper"] *= rain_factor
+        
+        # Extreme temperatures affect different products differently
+        temperature = features.get('temperature')
+        if temperature is not None:
+            if temperature > settings.TEMPERATURE_THRESHOLD_HOT:
+                # Hot weather reduces bread sales, increases cold drinks
+                prediction["yhat"] *= 0.9
+            elif temperature < settings.TEMPERATURE_THRESHOLD_COLD:
+                # Cold weather increases hot beverage sales
+                prediction["yhat"] *= 1.1
+        
+        return prediction
+    
+    def _apply_time_rules(self, prediction: Dict[str, float], 
+                        features: Dict[str, Any]) -> Dict[str, float]:
+        """Apply time-based business rules"""
+        
+        # Weekend adjustment
+        if features.get('is_weekend', False):
+            weekend_factor = settings.WEEKEND_ADJUSTMENT_FACTOR
+            prediction["yhat"] *= weekend_factor
+            prediction["yhat_lower"] *= weekend_factor
+            prediction["yhat_upper"] *= weekend_factor
+        
+        # Holiday adjustment
+        if features.get('is_holiday', False):
+            holiday_factor = settings.HOLIDAY_ADJUSTMENT_FACTOR
+            prediction["yhat"] *= holiday_factor
+            prediction["yhat_lower"] *= holiday_factor
+            prediction["yhat_upper"] *= holiday_factor
+        
+        return prediction
+    
+    def _apply_business_type_rules(self, prediction: Dict[str, float], 
+                                 business_type: str) -> Dict[str, float]:
+        """Apply business type specific rules"""
+        
+        if business_type == "central_workshop":
+            # Central workshops have more stable demand
+            uncertainty_reduction = 0.8
+            center = prediction["yhat"]
+            lower = prediction["yhat_lower"]
+            upper = prediction["yhat_upper"]
+            
+            # Reduce uncertainty band
+            new_range = (upper - lower) * uncertainty_reduction
+            prediction["yhat_lower"] = center - (new_range / 2)
+            prediction["yhat_upper"] = center + (new_range / 2)
+        
+        return prediction
+    
+    def _apply_spanish_rules(self, prediction: Dict[str, float], 
+                           features: Dict[str, Any]) -> Dict[str, float]:
+        """Apply Spanish bakery specific rules"""
+        
+        # Spanish siesta time considerations
+        current_date = pd.to_datetime(features['date'])
+        day_of_week = current_date.weekday()
+        
+        # Reduced activity during typical siesta hours (14:00-17:00)
+        # This affects afternoon sales planning
+        if day_of_week < 5:  # Weekdays
+            prediction["yhat"] *= 0.95  # Slight reduction for siesta effect
+        
+        return prediction

services/forecasting/app/models/forecasts.py

@@ -0,0 +1,112 @@
+# ================================================================
+# services/forecasting/app/models/forecasts.py
+# ================================================================
+"""
+Forecast models for the forecasting service
+"""
+
+from sqlalchemy import Column, String, Integer, Float, DateTime, Boolean, Text, JSON
+from sqlalchemy.dialects.postgresql import UUID
+from datetime import datetime, timezone
+import uuid
+
+from shared.database.base import Base
+
+class Forecast(Base):
+    """Forecast model for storing prediction results"""
+    __tablename__ = "forecasts"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    tenant_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    product_name = Column(String(255), nullable=False, index=True)
+    location = Column(String(255), nullable=False, index=True)
+    
+    # Forecast period
+    forecast_date = Column(DateTime(timezone=True), nullable=False, index=True)
+    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
+    
+    # Prediction results
+    predicted_demand = Column(Float, nullable=False)
+    confidence_lower = Column(Float, nullable=False)
+    confidence_upper = Column(Float, nullable=False)
+    confidence_level = Column(Float, default=0.8)
+    
+    # Model information
+    model_id = Column(UUID(as_uuid=True), nullable=False)
+    model_version = Column(String(50), nullable=False)
+    algorithm = Column(String(50), default="prophet")
+    
+    # Business context
+    business_type = Column(String(50), default="individual")  # individual or central_workshop
+    day_of_week = Column(Integer, nullable=False)
+    is_holiday = Column(Boolean, default=False)
+    is_weekend = Column(Boolean, default=False)
+    
+    # External factors
+    weather_temperature = Column(Float)
+    weather_precipitation = Column(Float)
+    weather_description = Column(String(100))
+    traffic_volume = Column(Integer)
+    
+    # Metadata
+    processing_time_ms = Column(Integer)
+    features_used = Column(JSON)
+    
+    def __repr__(self):
+        return f"<Forecast(id={self.id}, product={self.product_name}, date={self.forecast_date})>"
+
+class PredictionBatch(Base):
+    """Batch prediction requests"""
+    __tablename__ = "prediction_batches"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    tenant_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    
+    # Batch information
+    batch_name = Column(String(255), nullable=False)
+    requested_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
+    completed_at = Column(DateTime(timezone=True))
+    
+    # Status
+    status = Column(String(50), default="pending")  # pending, processing, completed, failed
+    total_products = Column(Integer, default=0)
+    completed_products = Column(Integer, default=0)
+    failed_products = Column(Integer, default=0)
+    
+    # Configuration
+    forecast_days = Column(Integer, default=7)
+    business_type = Column(String(50), default="individual")
+    
+    # Results
+    error_message = Column(Text)
+    processing_time_ms = Column(Integer)
+    
+    def __repr__(self):
+        return f"<PredictionBatch(id={self.id}, status={self.status})>"
+
+class ForecastAlert(Base):
+    """Alerts based on forecast results"""
+    __tablename__ = "forecast_alerts"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    tenant_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    forecast_id = Column(UUID(as_uuid=True), nullable=False)
+    
+    # Alert information
+    alert_type = Column(String(50), nullable=False)  # high_demand, low_demand, stockout_risk
+    severity = Column(String(20), default="medium")  # low, medium, high, critical
+    message = Column(Text, nullable=False)
+    
+    # Status
+    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
+    acknowledged_at = Column(DateTime(timezone=True))
+    resolved_at = Column(DateTime(timezone=True))
+    is_active = Column(Boolean, default=True)
+    
+    # Notification
+    notification_sent = Column(Boolean, default=False)
+    notification_method = Column(String(50))  # email, whatsapp, sms
+    
+    def __repr__(self):
+        return f"<ForecastAlert(id={self.id}, type={self.alert_type})>"
+

services/forecasting/app/models/predictions.py

@@ -0,0 +1,67 @@
+# ================================================================
+# services/forecasting/app/models/predictions.py
+# ================================================================
+"""
+Additional prediction models for the forecasting service
+"""
+
+from sqlalchemy import Column, String, Integer, Float, DateTime, Boolean, Text, JSON
+from sqlalchemy.dialects.postgresql import UUID
+from datetime import datetime, timezone
+import uuid
+
+from shared.database.base import Base
+
+class ModelPerformanceMetric(Base):
+    """Track model performance over time"""
+    __tablename__ = "model_performance_metrics"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    model_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    tenant_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    product_name = Column(String(255), nullable=False)
+    
+    # Performance metrics
+    mae = Column(Float)  # Mean Absolute Error
+    mape = Column(Float)  # Mean Absolute Percentage Error
+    rmse = Column(Float)  # Root Mean Square Error
+    accuracy_score = Column(Float)
+    
+    # Evaluation period
+    evaluation_date = Column(DateTime(timezone=True), nullable=False)
+    evaluation_period_start = Column(DateTime(timezone=True))
+    evaluation_period_end = Column(DateTime(timezone=True))
+    
+    # Metadata
+    sample_size = Column(Integer)
+    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
+    
+    def __repr__(self):
+        return f"<ModelPerformanceMetric(model_id={self.model_id}, mae={self.mae})>"
+
+class PredictionCache(Base):
+    """Cache frequently requested predictions"""
+    __tablename__ = "prediction_cache"
+    
+    id = Column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
+    cache_key = Column(String(255), unique=True, nullable=False, index=True)
+    
+    # Cached data
+    tenant_id = Column(UUID(as_uuid=True), nullable=False, index=True)
+    product_name = Column(String(255), nullable=False)
+    location = Column(String(255), nullable=False)
+    forecast_date = Column(DateTime(timezone=True), nullable=False)
+    
+    # Cached results
+    predicted_demand = Column(Float, nullable=False)
+    confidence_lower = Column(Float, nullable=False)
+    confidence_upper = Column(Float, nullable=False)
+    model_id = Column(UUID(as_uuid=True), nullable=False)
+    
+    # Cache metadata
+    created_at = Column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))
+    expires_at = Column(DateTime(timezone=True), nullable=False)
+    hit_count = Column(Integer, default=0)
+    
+    def __repr__(self):
+        return f"<PredictionCache(key={self.cache_key}, product={self.product_name})>"

services/forecasting/app/schemas/forecasts.py

@@ -0,0 +1,123 @@
+# ================================================================
+# services/forecasting/app/schemas/forecasts.py
+# ================================================================
+"""
+Forecast schemas for request/response validation
+"""
+
+from pydantic import BaseModel, Field, validator
+from datetime import datetime, date
+from typing import Optional, List, Dict, Any
+from enum import Enum
+
+class BusinessType(str, Enum):
+    INDIVIDUAL = "individual"
+    CENTRAL_WORKSHOP = "central_workshop"
+
+class AlertType(str, Enum):
+    HIGH_DEMAND = "high_demand"
+    LOW_DEMAND = "low_demand" 
+    STOCKOUT_RISK = "stockout_risk"
+    OVERPRODUCTION = "overproduction"
+
+class ForecastRequest(BaseModel):
+    """Request schema for generating forecasts"""
+    tenant_id: str = Field(..., description="Tenant ID")
+    product_name: str = Field(..., description="Product name")
+    location: str = Field(..., description="Location identifier")
+    forecast_date: date = Field(..., description="Date for which to generate forecast")
+    business_type: BusinessType = Field(BusinessType.INDIVIDUAL, description="Business model type")
+    
+    # Optional context
+    include_weather: bool = Field(True, description="Include weather data in forecast")
+    include_traffic: bool = Field(True, description="Include traffic data in forecast")
+    confidence_level: float = Field(0.8, ge=0.5, le=0.95, description="Confidence level for intervals")
+    
+    @validator('forecast_date')
+    def validate_forecast_date(cls, v):
+        if v < date.today():
+            raise ValueError("Forecast date cannot be in the past")
+        return v
+
+class BatchForecastRequest(BaseModel):
+    """Request schema for batch forecasting"""
+    tenant_id: str = Field(..., description="Tenant ID")
+    batch_name: str = Field(..., description="Batch name for tracking")
+    products: List[str] = Field(..., description="List of product names")
+    location: str = Field(..., description="Location identifier")
+    forecast_days: int = Field(7, ge=1, le=30, description="Number of days to forecast")
+    business_type: BusinessType = Field(BusinessType.INDIVIDUAL, description="Business model type")
+    
+    # Options
+    include_weather: bool = Field(True, description="Include weather data")
+    include_traffic: bool = Field(True, description="Include traffic data")
+    confidence_level: float = Field(0.8, ge=0.5, le=0.95, description="Confidence level")
+
+class ForecastResponse(BaseModel):
+    """Response schema for forecast results"""
+    id: str
+    tenant_id: str
+    product_name: str
+    location: str
+    forecast_date: datetime
+    
+    # Predictions
+    predicted_demand: float
+    confidence_lower: float
+    confidence_upper: float
+    confidence_level: float
+    
+    # Model info
+    model_id: str
+    model_version: str
+    algorithm: str
+    
+    # Context
+    business_type: str
+    is_holiday: bool
+    is_weekend: bool
+    day_of_week: int
+    
+    # External factors
+    weather_temperature: Optional[float]
+    weather_precipitation: Optional[float]
+    weather_description: Optional[str]
+    traffic_volume: Optional[int]
+    
+    # Metadata
+    created_at: datetime
+    processing_time_ms: Optional[int]
+    features_used: Optional[Dict[str, Any]]
+
+class BatchForecastResponse(BaseModel):
+    """Response schema for batch forecast requests"""
+    id: str
+    tenant_id: str
+    batch_name: str
+    status: str
+    total_products: int
+    completed_products: int
+    failed_products: int
+    
+    # Timing
+    requested_at: datetime
+    completed_at: Optional[datetime]
+    processing_time_ms: Optional[int]
+    
+    # Results
+    forecasts: Optional[List[ForecastResponse]]
+    error_message: Optional[str]
+
+class AlertResponse(BaseModel):
+    """Response schema for forecast alerts"""
+    id: str
+    tenant_id: str
+    forecast_id: str
+    alert_type: str
+    severity: str
+    message: str
+    is_active: bool
+    created_at: datetime
+    acknowledged_at: Optional[datetime]
+    notification_sent: bool
+

services/forecasting/app/services/forecasting_service.py

@@ -0,0 +1,438 @@
+# ================================================================
+# services/forecasting/app/services/forecasting_service.py
+# ================================================================
+"""
+Main forecasting service business logic
+Orchestrates demand prediction operations
+"""
+
+import structlog
+from typing import Dict, List, Any, Optional
+from datetime import datetime, date, timedelta
+import asyncio
+import uuid
+from sqlalchemy.ext.asyncio import AsyncSession
+from sqlalchemy import select, and_, desc
+import httpx
+
+from app.models.forecasts import Forecast, PredictionBatch, ForecastAlert
+from app.schemas.forecasts import ForecastRequest, BatchForecastRequest, BusinessType
+from app.services.prediction_service import PredictionService
+from app.services.messaging import publish_forecast_completed, publish_alert_created
+from app.core.config import settings
+from shared.monitoring.metrics import MetricsCollector
+
+logger = structlog.get_logger()
+metrics = MetricsCollector("forecasting-service")
+
+class ForecastingService:
+    """
+    Main service class for managing forecasting operations.
+    Handles demand prediction, batch processing, and alert generation.
+    """
+    
+    def __init__(self):
+        self.prediction_service = PredictionService()
+    
+    async def generate_forecast(self, request: ForecastRequest, db: AsyncSession) -> Forecast:
+        """Generate a single forecast for a product"""
+        start_time = datetime.now()
+        
+        try:
+            logger.info("Generating forecast", 
+                       tenant_id=request.tenant_id,
+                       product=request.product_name,
+                       date=request.forecast_date)
+            
+            # Get the latest trained model for this tenant/product
+            model_info = await self._get_latest_model(
+                request.tenant_id, 
+                request.product_name, 
+                request.location
+            )
+            
+            if not model_info:
+                raise ValueError(f"No trained model found for {request.product_name}")
+            
+            # Prepare features for prediction
+            features = await self._prepare_forecast_features(request)
+            
+            # Generate prediction using ML service
+            prediction_result = await self.prediction_service.predict(
+                model_id=model_info["model_id"],
+                features=features,
+                confidence_level=request.confidence_level
+            )
+            
+            # Create forecast record
+            forecast = Forecast(
+                tenant_id=uuid.UUID(request.tenant_id),
+                product_name=request.product_name,
+                location=request.location,
+                forecast_date=datetime.combine(request.forecast_date, datetime.min.time()),
+                
+                # Prediction results
+                predicted_demand=prediction_result["demand"],
+                confidence_lower=prediction_result["lower_bound"],
+                confidence_upper=prediction_result["upper_bound"],
+                confidence_level=request.confidence_level,
+                
+                # Model information
+                model_id=uuid.UUID(model_info["model_id"]),
+                model_version=model_info["version"],
+                algorithm=model_info.get("algorithm", "prophet"),
+                
+                # Context
+                business_type=request.business_type.value,
+                day_of_week=request.forecast_date.weekday(),
+                is_holiday=features.get("is_holiday", False),
+                is_weekend=request.forecast_date.weekday() >= 5,
+                
+                # External factors
+                weather_temperature=features.get("temperature"),
+                weather_precipitation=features.get("precipitation"),
+                weather_description=features.get("weather_description"),
+                traffic_volume=features.get("traffic_volume"),
+                
+                # Metadata
+                processing_time_ms=int((datetime.now() - start_time).total_seconds() * 1000),
+                features_used=features
+            )
+            
+            db.add(forecast)
+            await db.commit()
+            await db.refresh(forecast)
+            
+            # Check for alerts
+            await self._check_and_create_alerts(forecast, db)
+            
+            # Update metrics
+            metrics.increment_counter("forecasts_generated_total", 
+                                    {"product": request.product_name, "location": request.location})
+            
+            # Publish event
+            await publish_forecast_completed({
+                "forecast_id": str(forecast.id),
+                "tenant_id": request.tenant_id,
+                "product_name": request.product_name,
+                "predicted_demand": forecast.predicted_demand
+            })
+            
+            logger.info("Forecast generated successfully", 
+                       forecast_id=str(forecast.id),
+                       predicted_demand=forecast.predicted_demand)
+            
+            return forecast
+            
+        except Exception as e:
+            logger.error("Error generating forecast", 
+                        error=str(e),
+                        tenant_id=request.tenant_id,
+                        product=request.product_name)
+            raise
+    
+    async def generate_batch_forecast(self, request: BatchForecastRequest, db: AsyncSession) -> PredictionBatch:
+        """Generate forecasts for multiple products over multiple days"""
+        
+        try:
+            logger.info("Starting batch forecast generation",
+                       tenant_id=request.tenant_id,
+                       batch_name=request.batch_name,
+                       products_count=len(request.products),
+                       forecast_days=request.forecast_days)
+            
+            # Create batch record
+            batch = PredictionBatch(
+                tenant_id=uuid.UUID(request.tenant_id),
+                batch_name=request.batch_name,
+                status="processing",
+                total_products=len(request.products) * request.forecast_days,
+                business_type=request.business_type.value,
+                forecast_days=request.forecast_days
+            )
+            
+            db.add(batch)
+            await db.commit()
+            await db.refresh(batch)
+            
+            # Generate forecasts for each product and day
+            completed_count = 0
+            failed_count = 0
+            
+            for product in request.products:
+                for day_offset in range(request.forecast_days):
+                    forecast_date = date.today() + timedelta(days=day_offset + 1)
+                    
+                    try:
+                        forecast_request = ForecastRequest(
+                            tenant_id=request.tenant_id,
+                            product_name=product,
+                            location=request.location,
+                            forecast_date=forecast_date,
+                            business_type=request.business_type,
+                            include_weather=request.include_weather,
+                            include_traffic=request.include_traffic,
+                            confidence_level=request.confidence_level
+                        )
+                        
+                        await self.generate_forecast(forecast_request, db)
+                        completed_count += 1
+                        
+                    except Exception as e:
+                        logger.warning("Failed to generate forecast for product", 
+                                     product=product, 
+                                     date=forecast_date, 
+                                     error=str(e))
+                        failed_count += 1
+            
+            # Update batch status
+            batch.status = "completed" if failed_count == 0 else "partial"
+            batch.completed_products = completed_count
+            batch.failed_products = failed_count
+            batch.completed_at = datetime.now()
+            
+            await db.commit()
+            
+            logger.info("Batch forecast generation completed",
+                       batch_id=str(batch.id),
+                       completed=completed_count,
+                       failed=failed_count)
+            
+            return batch
+            
+        except Exception as e:
+            logger.error("Error in batch forecast generation", error=str(e))
+            raise
+    
+    async def get_forecasts(self, tenant_id: str, location: str, 
+                          start_date: Optional[date] = None,
+                          end_date: Optional[date] = None,
+                          product_name: Optional[str] = None,
+                          db: AsyncSession = None) -> List[Forecast]:
+        """Retrieve forecasts with filtering"""
+        
+        try:
+            query = select(Forecast).where(
+                and_(
+                    Forecast.tenant_id == uuid.UUID(tenant_id),
+                    Forecast.location == location
+                )
+            )
+            
+            if start_date:
+                query = query.where(Forecast.forecast_date >= datetime.combine(start_date, datetime.min.time()))
+            
+            if end_date:
+                query = query.where(Forecast.forecast_date <= datetime.combine(end_date, datetime.max.time()))
+            
+            if product_name:
+                query = query.where(Forecast.product_name == product_name)
+            
+            query = query.order_by(desc(Forecast.forecast_date))
+            
+            result = await db.execute(query)
+            forecasts = result.scalars().all()
+            
+            logger.info("Retrieved forecasts", 
+                       tenant_id=tenant_id,
+                       count=len(forecasts))
+            
+            return list(forecasts)
+            
+        except Exception as e:
+            logger.error("Error retrieving forecasts", error=str(e))
+            raise
+    
+    async def _get_latest_model(self, tenant_id: str, product_name: str, location: str) -> Optional[Dict[str, Any]]:
+        """Get the latest trained model for a tenant/product combination"""
+        
+        try:
+            # Call training service to get model information
+            async with httpx.AsyncClient() as client:
+                response = await client.get(
+                    f"{settings.TRAINING_SERVICE_URL}/api/v1/models/latest",
+                    params={
+                        "tenant_id": tenant_id,
+                        "product_name": product_name,
+                        "location": location
+                    },
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    return response.json()
+                elif response.status_code == 404:
+                    logger.warning("No model found", 
+                                 tenant_id=tenant_id, 
+                                 product=product_name)
+                    return None
+                else:
+                    response.raise_for_status()
+                    
+        except Exception as e:
+            logger.error("Error getting latest model", error=str(e))
+            raise
+    
+    async def _prepare_forecast_features(self, request: ForecastRequest) -> Dict[str, Any]:
+        """Prepare features for forecasting model"""
+        
+        features = {
+            "date": request.forecast_date.isoformat(),
+            "day_of_week": request.forecast_date.weekday(),
+            "is_weekend": request.forecast_date.weekday() >= 5,
+            "business_type": request.business_type.value
+        }
+        
+        # Add Spanish holidays
+        features["is_holiday"] = await self._is_spanish_holiday(request.forecast_date)
+        
+        # Add weather data if requested
+        if request.include_weather:
+            weather_data = await self._get_weather_forecast(request.forecast_date)
+            features.update(weather_data)
+        
+        # Add traffic data if requested
+        if request.include_traffic:
+            traffic_data = await self._get_traffic_forecast(request.forecast_date, request.location)
+            features.update(traffic_data)
+        
+        return features
+    
+    async def _is_spanish_holiday(self, forecast_date: date) -> bool:
+        """Check if date is a Spanish holiday"""
+        
+        try:
+            # Call data service for holiday information
+            async with httpx.AsyncClient() as client:
+                response = await client.get(
+                    f"{settings.DATA_SERVICE_URL}/api/v1/holidays/check",
+                    params={"date": forecast_date.isoformat()},
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    return response.json().get("is_holiday", False)
+                else:
+                    return False
+                    
+        except Exception as e:
+            logger.warning("Error checking holiday status", error=str(e))
+            return False
+    
+    async def _get_weather_forecast(self, forecast_date: date) -> Dict[str, Any]:
+        """Get weather forecast for the date"""
+        
+        try:
+            # Call data service for weather forecast
+            async with httpx.AsyncClient() as client:
+                response = await client.get(
+                    f"{settings.DATA_SERVICE_URL}/api/v1/weather/forecast",
+                    params={"date": forecast_date.isoformat()},
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    weather = response.json()
+                    return {
+                        "temperature": weather.get("temperature"),
+                        "precipitation": weather.get("precipitation"),
+                        "humidity": weather.get("humidity"),
+                        "weather_description": weather.get("description")
+                    }
+                else:
+                    return {}
+                    
+        except Exception as e:
+            logger.warning("Error getting weather forecast", error=str(e))
+            return {}
+    
+    async def _get_traffic_forecast(self, forecast_date: date, location: str) -> Dict[str, Any]:
+        """Get traffic forecast for the date and location"""
+        
+        try:
+            # Call data service for traffic forecast
+            async with httpx.AsyncClient() as client:
+                response = await client.get(
+                    f"{settings.DATA_SERVICE_URL}/api/v1/traffic/forecast",
+                    params={
+                        "date": forecast_date.isoformat(),
+                        "location": location
+                    },
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    traffic = response.json()
+                    return {
+                        "traffic_volume": traffic.get("volume"),
+                        "pedestrian_count": traffic.get("pedestrian_count")
+                    }
+                else:
+                    return {}
+                    
+        except Exception as e:
+            logger.warning("Error getting traffic forecast", error=str(e))
+            return {}
+    
+    async def _check_and_create_alerts(self, forecast: Forecast, db: AsyncSession):
+        """Check forecast and create alerts if needed"""
+        
+        try:
+            alerts_to_create = []
+            
+            # High demand alert
+            if forecast.predicted_demand > settings.HIGH_DEMAND_THRESHOLD * 100:  # Assuming base of 100 units
+                alerts_to_create.append({
+                    "type": "high_demand",
+                    "severity": "medium",
+                    "message": f"High demand predicted for {forecast.product_name}: {forecast.predicted_demand:.0f} units"
+                })
+            
+            # Low demand alert  
+            if forecast.predicted_demand < settings.LOW_DEMAND_THRESHOLD * 100:
+                alerts_to_create.append({
+                    "type": "low_demand",
+                    "severity": "low",
+                    "message": f"Low demand predicted for {forecast.product_name}: {forecast.predicted_demand:.0f} units"
+                })
+            
+            # Stockout risk alert
+            if forecast.confidence_upper > settings.STOCKOUT_RISK_THRESHOLD * forecast.predicted_demand:
+                alerts_to_create.append({
+                    "type": "stockout_risk",
+                    "severity": "high",
+                    "message": f"Stockout risk for {forecast.product_name}. Upper confidence: {forecast.confidence_upper:.0f}"
+                })
+            
+            # Create alerts
+            for alert_data in alerts_to_create:
+                alert = ForecastAlert(
+                    tenant_id=forecast.tenant_id,
+                    forecast_id=forecast.id,
+                    alert_type=alert_data["type"],
+                    severity=alert_data["severity"],
+                    message=alert_data["message"]
+                )
+                
+                db.add(alert)
+                
+                # Publish alert event
+                await publish_alert_created({
+                    "alert_id": str(alert.id),
+                    "tenant_id": str(forecast.tenant_id),
+                    "product_name": forecast.product_name,
+                    "alert_type": alert_data["type"],
+                    "severity": alert_data["severity"],
+                    "message": alert_data["message"]
+                })
+            
+            await db.commit()
+            
+            if alerts_to_create:
+                logger.info("Created forecast alerts", 
+                           forecast_id=str(forecast.id),
+                           alerts_count=len(alerts_to_create))
+            
+        except Exception as e:
+            logger.error("Error creating alerts", error=str(e))
+            # Don't raise - alerts are not critical for forecast generation

services/forecasting/app/services/messaging.py

@@ -0,0 +1,98 @@
+# ================================================================
+# services/forecasting/app/services/messaging.py  
+# ================================================================
+"""
+Messaging service for event publishing and consuming
+"""
+
+import structlog
+import json
+from typing import Dict, Any
+import asyncio
+
+from shared.messaging.rabbitmq import RabbitMQPublisher, RabbitMQConsumer
+from app.core.config import settings
+
+logger = structlog.get_logger()
+
+# Global messaging instances
+publisher = None
+consumer = None
+
+async def setup_messaging():
+    """Initialize messaging services"""
+    global publisher, consumer
+    
+    try:
+        # Initialize publisher
+        publisher = RabbitMQPublisher(settings.RABBITMQ_URL)
+        await publisher.connect()
+        
+        # Initialize consumer
+        consumer = RabbitMQConsumer(settings.RABBITMQ_URL)
+        await consumer.connect()
+        
+        # Set up event handlers
+        await consumer.subscribe("training.model.updated", handle_model_updated)
+        await consumer.subscribe("data.weather.updated", handle_weather_updated)
+        
+        logger.info("Messaging setup completed")
+        
+    except Exception as e:
+        logger.error("Failed to setup messaging", error=str(e))
+        raise
+
+async def cleanup_messaging():
+    """Cleanup messaging connections"""
+    global publisher, consumer
+    
+    try:
+        if consumer:
+            await consumer.close()
+        if publisher:
+            await publisher.close()
+        
+        logger.info("Messaging cleanup completed")
+        
+    except Exception as e:
+        logger.error("Error during messaging cleanup", error=str(e))
+
+async def publish_forecast_completed(data: Dict[str, Any]):
+    """Publish forecast completed event"""
+    if publisher:
+        await publisher.publish("forecasting.forecast.completed", data)
+
+async def publish_alert_created(data: Dict[str, Any]):
+    """Publish alert created event"""
+    if publisher:
+        await publisher.publish("forecasting.alert.created", data)
+
+async def publish_batch_completed(data: Dict[str, Any]):
+    """Publish batch forecast completed event"""
+    if publisher:
+        await publisher.publish("forecasting.batch.completed", data)
+
+# Event handlers
+async def handle_model_updated(data: Dict[str, Any]):
+    """Handle model updated event from training service"""
+    try:
+        logger.info("Received model updated event", 
+                   model_id=data.get("model_id"),
+                   tenant_id=data.get("tenant_id"))
+        
+        # Clear model cache for this model
+        # This will be handled by PredictionService
+        
+    except Exception as e:
+        logger.error("Error handling model updated event", error=str(e))
+
+async def handle_weather_updated(data: Dict[str, Any]):
+    """Handle weather data updated event"""
+    try:
+        logger.info("Received weather updated event", 
+                   date=data.get("date"))
+        
+        # Could trigger re-forecasting if needed
+        
+    except Exception as e:
+        logger.error("Error handling weather updated event", error=str(e))

services/forecasting/app/services/prediction_service.py

@@ -0,0 +1,166 @@
+# ================================================================
+# services/forecasting/app/services/prediction_service.py
+# ================================================================
+"""
+Prediction service for loading models and generating predictions
+Handles the actual ML prediction logic
+"""
+
+import structlog
+from typing import Dict, List, Any, Optional
+import asyncio
+import pickle
+import json
+from datetime import datetime, date
+import numpy as np
+import pandas as pd
+import httpx
+from pathlib import Path
+
+from app.core.config import settings
+from shared.monitoring.metrics import MetricsCollector
+
+logger = structlog.get_logger()
+metrics = MetricsCollector("forecasting-service")
+
+class PredictionService:
+    """
+    Service for loading ML models and generating predictions
+    Interfaces with trained Prophet models from the training service
+    """
+    
+    def __init__(self):
+        self.model_cache = {}
+        self.cache_ttl = 3600  # 1 hour cache
+    
+    async def predict(self, model_id: str, features: Dict[str, Any], 
+                     confidence_level: float = 0.8) -> Dict[str, float]:
+        """Generate prediction using trained model"""
+        
+        start_time = datetime.now()
+        
+        try:
+            logger.info("Generating prediction", 
+                       model_id=model_id,
+                       features_count=len(features))
+            
+            # Load model
+            model = await self._load_model(model_id)
+            
+            if not model:
+                raise ValueError(f"Model {model_id} not found or failed to load")
+            
+            # Prepare features for Prophet
+            df = self._prepare_prophet_features(features)
+            
+            # Generate prediction
+            forecast = model.predict(df)
+            
+            # Extract prediction results
+            if len(forecast) > 0:
+                row = forecast.iloc[0]
+                result = {
+                    "demand": float(row['yhat']),
+                    "lower_bound": float(row[f'yhat_lower']),
+                    "upper_bound": float(row[f'yhat_upper']),
+                    "trend": float(row.get('trend', 0)),
+                    "seasonal": float(row.get('seasonal', 0)),
+                    "holiday": float(row.get('holidays', 0))
+                }
+            else:
+                raise ValueError("No prediction generated from model")
+            
+            # Update metrics
+            processing_time = (datetime.now() - start_time).total_seconds()
+            metrics.histogram_observe("forecast_processing_time_seconds", processing_time)
+            
+            logger.info("Prediction generated successfully", 
+                       model_id=model_id,
+                       predicted_demand=result["demand"],
+                       processing_time_ms=int(processing_time * 1000))
+            
+            return result
+            
+        except Exception as e:
+            logger.error("Error generating prediction", 
+                        model_id=model_id,
+                        error=str(e))
+            raise
+    
+    async def _load_model(self, model_id: str):
+        """Load model from cache or training service"""
+        
+        # Check cache first
+        if model_id in self.model_cache:
+            cached_model, cached_time = self.model_cache[model_id]
+            if (datetime.now() - cached_time).seconds < self.cache_ttl:
+                logger.debug("Using cached model", model_id=model_id)
+                return cached_model
+        
+        try:
+            # Download model from training service
+            async with httpx.AsyncClient(timeout=30.0) as client:
+                response = await client.get(
+                    f"{settings.TRAINING_SERVICE_URL}/api/v1/models/{model_id}/download",
+                    headers={"X-Service-Auth": settings.SERVICE_AUTH_TOKEN}
+                )
+                
+                if response.status_code == 200:
+                    # Load model from bytes
+                    model_data = response.content
+                    model = pickle.loads(model_data)
+                    
+                    # Cache the model
+                    self.model_cache[model_id] = (model, datetime.now())
+                    
+                    logger.info("Model loaded successfully", model_id=model_id)
+                    return model
+                else:
+                    logger.error("Failed to download model", 
+                               model_id=model_id,
+                               status_code=response.status_code)
+                    return None
+                    
+        except Exception as e:
+            logger.error("Error loading model", model_id=model_id, error=str(e))
+            return None
+    
+    def _prepare_prophet_features(self, features: Dict[str, Any]) -> pd.DataFrame:
+        """Convert features to Prophet-compatible DataFrame"""
+        
+        try:
+            # Create base DataFrame with required 'ds' column
+            df = pd.DataFrame({
+                'ds': [pd.to_datetime(features['date'])]
+            })
+            
+            # Add numeric features
+            numeric_features = [
+                'temperature', 'precipitation', 'humidity', 'wind_speed',
+                'traffic_volume', 'pedestrian_count'
+            ]
+            
+            for feature in numeric_features:
+                if feature in features and features[feature] is not None:
+                    df[feature] = float(features[feature])
+                else:
+                    df[feature] = 0.0
+            
+            # Add categorical features
+            df['day_of_week'] = int(features.get('day_of_week', 0))
+            df['is_weekend'] = int(features.get('is_weekend', False))
+            df['is_holiday'] = int(features.get('is_holiday', False))
+            
+            # Business type encoding
+            business_type = features.get('business_type', 'individual')
+            df['is_central_workshop'] = int(business_type == 'central_workshop')
+            
+            logger.debug("Prepared Prophet features", 
+                        features_count=len(df.columns),
+                        date=features['date'])
+            
+            return df
+            
+        except Exception as e:
+            logger.error("Error preparing Prophet features", error=str(e))
+            raise

services/forecasting/migrations/versions/001_initial_tables.py

@@ -0,0 +1,98 @@
+# ================================================================
+# services/forecasting/migrations/versions/001_initial_tables.py
+# ================================================================
+"""Initial forecasting tables
+
+Revision ID: 001
+Revises: 
+Create Date: 2024-01-15 10:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers
+revision = '001'
+down_revision = None
+branch_labels = None
+depends_on = None
+
+def upgrade():
+    # Create forecasts table
+    op.create_table('forecasts',
+        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('tenant_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('product_name', sa.String(length=255), nullable=False),
+        sa.Column('location', sa.String(length=255), nullable=False),
+        sa.Column('forecast_date', sa.DateTime(timezone=True), nullable=False),
+        sa.Column('created_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('predicted_demand', sa.Float(), nullable=False),
+        sa.Column('confidence_lower', sa.Float(), nullable=False),
+        sa.Column('confidence_upper', sa.Float(), nullable=False),
+        sa.Column('confidence_level', sa.Float(), nullable=True),
+        sa.Column('model_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('model_version', sa.String(length=50), nullable=False),
+        sa.Column('algorithm', sa.String(length=50), nullable=True),
+        sa.Column('business_type', sa.String(length=50), nullable=True),
+        sa.Column('day_of_week', sa.Integer(), nullable=False),
+        sa.Column('is_holiday', sa.Boolean(), nullable=True),
+        sa.Column('is_weekend', sa.Boolean(), nullable=True),
+        sa.Column('weather_temperature', sa.Float(), nullable=True),
+        sa.Column('weather_precipitation', sa.Float(), nullable=True),
+        sa.Column('weather_description', sa.String(length=100), nullable=True),
+        sa.Column('traffic_volume', sa.Integer(), nullable=True),
+        sa.Column('processing_time_ms', sa.Integer(), nullable=True),
+        sa.Column('features_used', sa.JSON(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    # Create indexes
+    op.create_index('ix_forecasts_tenant_id', 'forecasts', ['tenant_id'])
+    op.create_index('ix_forecasts_product_name', 'forecasts', ['product_name'])
+    op.create_index('ix_forecasts_location', 'forecasts', ['location'])
+    op.create_index('ix_forecasts_forecast_date', 'forecasts', ['forecast_date'])
+    
+    # Create prediction_batches table
+    op.create_table('prediction_batches',
+        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('tenant_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('batch_name', sa.String(length=255), nullable=False),
+        sa.Column('requested_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('completed_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('status', sa.String(length=50), nullable=True),
+        sa.Column('total_products', sa.Integer(), nullable=True),
+        sa.Column('completed_products', sa.Integer(), nullable=True),
+        sa.Column('failed_products', sa.Integer(), nullable=True),
+        sa.Column('forecast_days', sa.Integer(), nullable=True),
+        sa.Column('business_type', sa.String(length=50), nullable=True),
+        sa.Column('error_message', sa.Text(), nullable=True),
+        sa.Column('processing_time_ms', sa.Integer(), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    op.create_index('ix_prediction_batches_tenant_id', 'prediction_batches', ['tenant_id'])
+    
+    # Create forecast_alerts table
+    op.create_table('forecast_alerts',
+        sa.Column('id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('tenant_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('forecast_id', postgresql.UUID(as_uuid=True), nullable=False),
+        sa.Column('alert_type', sa.String(length=50), nullable=False),
+        sa.Column('severity', sa.String(length=20), nullable=True),
+        sa.Column('message', sa.Text(), nullable=False),
+        sa.Column('created_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('acknowledged_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('resolved_at', sa.DateTime(timezone=True), nullable=True),
+        sa.Column('is_active', sa.Boolean(), nullable=True),
+        sa.Column('notification_sent', sa.Boolean(), nullable=True),
+        sa.Column('notification_method', sa.String(length=50), nullable=True),
+        sa.PrimaryKeyConstraint('id')
+    )
+    
+    op.create_index('ix_forecast_alerts_tenant_id', 'forecast_alerts', ['tenant_id'])
+
+def downgrade():
+    op.drop_table('forecast_alerts')
+    op.drop_table('prediction_batches')
+    op.drop_table('forecasts')

services/forecasting/requirements.txt

@@ -1,15 +1,36 @@
+# Core FastAPI dependencies
 fastapi==0.104.1
 uvicorn[standard]==0.24.0
-sqlalchemy==2.0.23
-asyncpg==0.29.0
-alembic==1.12.1
 pydantic==2.5.0
 pydantic-settings==2.1.0
+
+# Database
+sqlalchemy[asyncio]==2.0.23
+asyncpg==0.29.0
+alembic==1.13.1
+
+# Authentication & Security
+python-jose[cryptography]==3.3.0
+passlib[bcrypt]==1.7.4
+python-multipart==0.0.6
+
+# HTTP Client
 httpx==0.25.2
-redis==5.0.1
-aio-pika==9.3.0
-prometheus-client==0.17.1
-python-json-logger==2.0.4
-pytz==2023.3
-python-logstash==0.4.8
+
+# Machine Learning
+prophet==1.1.4
+scikit-learn==1.3.2
+pandas==2.1.4
+numpy==1.25.2
+
+# Messaging
+aio-pika==9.3.1
+
+# Monitoring & Logging
 structlog==23.2.0
+prometheus-client==0.19.0
+
+# Development dependencies
+pytest==7.4.3
+pytest-asyncio==0.21.1
+pytest-cov==4.1.0

services/forecasting/tests/conftest.py

@@ -0,0 +1,54 @@
+# ================================================================
+# services/forecasting/tests/conftest.py
+# ================================================================
+"""
+Test configuration and fixtures for forecasting service
+"""
+
+import pytest
+import asyncio
+from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
+from sqlalchemy.pool import StaticPool
+
+from app.core.config import settings
+from shared.database.base import Base
+
+# Test database URL
+TEST_DATABASE_URL = "sqlite+aiosqlite:///:memory:"
+
+@pytest.fixture(scope="session")
+def event_loop():
+    """Create an instance of the default event loop for the test session."""
+    loop = asyncio.get_event_loop_policy().new_event_loop()
+    yield loop
+    loop.close()
+
+@pytest.fixture
+async def test_db():
+    """Create test database session"""
+    
+    # Create test engine
+    engine = create_async_engine(
+        TEST_DATABASE_URL,
+        poolclass=StaticPool,
+        connect_args={"check_same_thread": False},
+        echo=False
+    )
+    
+    # Create tables
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+    
+    # Create session factory
+    TestSessionLocal = async_sessionmaker(
+        engine,
+        class_=AsyncSession,
+        expire_on_commit=False
+    )
+    
+    # Provide session
+    async with TestSessionLocal() as session:
+        yield session
+    
+    # Cleanup
+    await engine.dispose()

services/forecasting/tests/integration/test_forecasting_flow.py

@@ -0,0 +1,114 @@
+# ================================================================
+# Integration Tests: tests/integration/test_forecasting_flow.py
+# ================================================================
+"""
+Integration tests for complete forecasting flow
+"""
+
+import pytest
+import httpx
+import asyncio
+from datetime import date, timedelta
+import json
+
+class TestForecastingFlow:
+    """Test complete forecasting workflow"""
+    
+    @pytest.mark.asyncio
+    async def test_complete_forecast_flow(self):
+        """Test complete flow from training to forecasting"""
+        
+        base_url = "http://localhost:8000"  # API Gateway
+        
+        # Test data
+        tenant_id = "test-tenant-123"
+        product_name = "Pan Integral"
+        location = "madrid_centro"
+        
+        async with httpx.AsyncClient() as client:
+            # 1. Check if model exists
+            model_response = await client.get(
+                f"{base_url}/api/v1/training/models/latest",
+                params={
+                    "tenant_id": tenant_id,
+                    "product_name": product_name,
+                    "location": location
+                }
+            )
+            
+            # 2. Generate forecast
+            forecast_request = {
+                "tenant_id": tenant_id,
+                "product_name": product_name,
+                "location": location,
+                "forecast_date": (date.today() + timedelta(days=1)).isoformat(),
+                "business_type": "individual",
+                "include_weather": True,
+                "include_traffic": True,
+                "confidence_level": 0.8
+            }
+            
+            forecast_response = await client.post(
+                f"{base_url}/api/v1/forecasting/single",
+                json=forecast_request
+            )
+            
+            assert forecast_response.status_code == 200
+            forecast_data = forecast_response.json()
+            
+            # Verify forecast structure
+            assert "id" in forecast_data
+            assert "predicted_demand" in forecast_data
+            assert "confidence_lower" in forecast_data
+            assert "confidence_upper" in forecast_data
+            assert forecast_data["product_name"] == product_name
+            
+            # 3. Get forecast list
+            list_response = await client.get(
+                f"{base_url}/api/v1/forecasting/list",
+                params={"location": location}
+            )
+            
+            assert list_response.status_code == 200
+            forecasts = list_response.json()
+            assert len(forecasts) > 0
+            
+            # 4. Check for alerts
+            alerts_response = await client.get(
+                f"{base_url}/api/v1/forecasting/alerts"
+            )
+            
+            assert alerts_response.status_code == 200
+    
+    @pytest.mark.asyncio
+    async def test_batch_forecasting(self):
+        """Test batch forecasting functionality"""
+        
+        base_url = "http://localhost:8000"
+        
+        batch_request = {
+            "tenant_id": "test-tenant-123",
+            "batch_name": "Weekly Forecast Batch",
+            "products": ["Pan Integral", "Croissant", "Café con Leche"],
+            "location": "madrid_centro",
+            "forecast_days": 7,
+            "business_type": "individual",
+            "include_weather": True,
+            "include_traffic": True,
+            "confidence_level": 0.8
+        }
+        
+        async with httpx.AsyncClient(timeout=60.0) as client:
+            response = await client.post(
+                f"{base_url}/api/v1/forecasting/batch",
+                json=batch_request
+            )
+            
+            assert response.status_code == 200
+            batch_data = response.json()
+            
+            assert "id" in batch_data
+            assert batch_data["batch_name"] == "Weekly Forecast Batch"
+            assert batch_data["total_products"] == 21  # 3 products * 7 days
+            assert batch_data["status"] in ["completed", "partial"]
+

services/forecasting/tests/performance/test_forecasting_performance.py

@@ -0,0 +1,106 @@
+# ================================================================
+# Performance Tests: tests/performance/test_forecasting_performance.py
+# ================================================================
+"""
+Performance tests for forecasting service
+"""
+
+import pytest
+import httpx
+import asyncio
+import time
+from concurrent.futures import ThreadPoolExecutor
+import statistics
+
+class TestForecastingPerformance:
+    """Performance tests for forecasting operations"""
+    
+    @pytest.mark.asyncio
+    async def test_single_forecast_performance(self):
+        """Test single forecast generation performance"""
+        
+        base_url = "http://localhost:8000"
+        
+        forecast_request = {
+            "tenant_id": "perf-test-tenant",
+            "product_name": "Pan Integral",
+            "location": "madrid_centro",
+            "forecast_date": "2024-01-17",
+            "business_type": "individual",
+            "confidence_level": 0.8
+        }
+        
+        times = []
+        
+        async with httpx.AsyncClient() as client:
+            for _ in range(10):
+                start_time = time.time()
+                
+                response = await client.post(
+                    f"{base_url}/api/v1/forecasting/single",
+                    json=forecast_request
+                )
+                
+                end_time = time.time()
+                times.append(end_time - start_time)
+                
+                assert response.status_code == 200
+        
+        # Performance assertions
+        avg_time = statistics.mean(times)
+        p95_time = statistics.quantiles(times, n=20)[18]  # 95th percentile
+        
+        assert avg_time < 2.0, f"Average response time {avg_time}s exceeds 2s"
+        assert p95_time < 5.0, f"95th percentile {p95_time}s exceeds 5s"
+        
+        print(f"Average response time: {avg_time:.2f}s")
+        print(f"95th percentile: {p95_time:.2f}s")
+    
+    @pytest.mark.asyncio
+    async def test_concurrent_forecasts(self):
+        """Test concurrent forecast generation"""
+        
+        base_url = "http://localhost:8000"
+        
+        async def make_forecast_request(product_id):
+            forecast_request = {
+                "tenant_id": "perf-test-tenant",
+                "product_name": f"Product_{product_id}",
+                "location": "madrid_centro",
+                "forecast_date": "2024-01-17",
+                "business_type": "individual"
+            }
+            
+            async with httpx.AsyncClient() as client:
+                start_time = time.time()
+                response = await client.post(
+                    f"{base_url}/api/v1/forecasting/single",
+                    json=forecast_request
+                )
+                end_time = time.time()
+                
+                return {
+                    "status_code": response.status_code,
+                    "response_time": end_time - start_time,
+                    "product_id": product_id
+                }
+        
+        # Run 20 concurrent requests
+        tasks = [make_forecast_request(i) for i in range(20)]
+        results = await asyncio.gather(*tasks, return_exceptions=True)
+        
+        # Analyze results
+        successful = [r for r in results if isinstance(r, dict) and r["status_code"] == 200]
+        failed = [r for r in results if not isinstance(r, dict) or r["status_code"] != 200]
+        
+        success_rate = len(successful) / len(results)
+        
+        assert success_rate >= 0.95, f"Success rate {success_rate} below 95%"
+        
+        if successful:
+            avg_concurrent_time = statistics.mean([r["response_time"] for r in successful])
+            assert avg_concurrent_time < 10.0, f"Average concurrent time {avg_concurrent_time}s exceeds 10s"
+            
+            print(f"Concurrent success rate: {success_rate:.2%}")
+            print(f"Average concurrent response time: {avg_concurrent_time:.2f}s")
+

services/forecasting/tests/test_forecasting.py

@@ -0,0 +1,135 @@
+# ================================================================
+# services/forecasting/tests/test_forecasting.py
+# ================================================================
+"""
+Tests for forecasting service
+"""
+
+import pytest
+import asyncio
+from datetime import date, datetime, timedelta
+from unittest.mock import Mock, AsyncMock, patch
+import uuid
+
+from app.services.forecasting_service import ForecastingService
+from app.schemas.forecasts import ForecastRequest, BusinessType
+from app.models.forecasts import Forecast
+
+
+class TestForecastingService:
+    """Test cases for ForecastingService"""
+    
+    @pytest.fixture
+    def forecasting_service(self):
+        return ForecastingService()
+    
+    @pytest.fixture
+    def sample_forecast_request(self):
+        return ForecastRequest(
+            tenant_id=str(uuid.uuid4()),
+            product_name="Pan Integral",
+            location="madrid_centro",
+            forecast_date=date.today() + timedelta(days=1),
+            business_type=BusinessType.INDIVIDUAL,
+            include_weather=True,
+            include_traffic=True,
+            confidence_level=0.8
+        )
+    
+    @pytest.mark.asyncio
+    async def test_generate_forecast_success(self, forecasting_service, sample_forecast_request):
+        """Test successful forecast generation"""
+        
+        # Mock database session
+        mock_db = AsyncMock()
+        
+        # Mock external dependencies
+        with patch.object(forecasting_service, '_get_latest_model') as mock_get_model, \
+             patch.object(forecasting_service, '_prepare_forecast_features') as mock_prepare_features, \
+             patch.object(forecasting_service.prediction_service, 'predict') as mock_predict, \
+             patch.object(forecasting_service, '_check_and_create_alerts') as mock_check_alerts:
+            
+            # Setup mocks
+            mock_get_model.return_value = {
+                "model_id": str(uuid.uuid4()),
+                "version": "1.0.0",
+                "algorithm": "prophet"
+            }
+            
+            mock_prepare_features.return_value = {
+                "date": "2024-01-16",
+                "day_of_week": 1,
+                "is_weekend": False,
+                "is_holiday": False,
+                "temperature": 15.0,
+                "precipitation": 0.0
+            }
+            
+            mock_predict.return_value = {
+                "demand": 85.5,
+                "lower_bound": 70.2,
+                "upper_bound": 100.8
+            }
+            
+            # Execute test
+            result = await forecasting_service.generate_forecast(sample_forecast_request, mock_db)
+            
+            # Assertions
+            assert isinstance(result, Forecast)
+            assert result.product_name == "Pan Integral"
+            assert result.predicted_demand == 85.5
+            assert result.confidence_lower == 70.2
+            assert result.confidence_upper == 100.8
+            
+            # Verify mocks were called
+            mock_get_model.assert_called_once()
+            mock_prepare_features.assert_called_once()
+            mock_predict.assert_called_once()
+            mock_check_alerts.assert_called_once()
+    
+    @pytest.mark.asyncio
+    async def test_generate_forecast_no_model(self, forecasting_service, sample_forecast_request):
+        """Test forecast generation when no model is found"""
+        
+        mock_db = AsyncMock()
+        
+        with patch.object(forecasting_service, '_get_latest_model') as mock_get_model:
+            mock_get_model.return_value = None
+            
+            # Should raise ValueError
+            with pytest.raises(ValueError, match="No trained model found"):
+                await forecasting_service.generate_forecast(sample_forecast_request, mock_db)
+    
+    @pytest.mark.asyncio
+    async def test_prepare_forecast_features(self, forecasting_service, sample_forecast_request):
+        """Test feature preparation for forecasting"""
+        
+        with patch.object(forecasting_service, '_is_spanish_holiday') as mock_holiday, \
+             patch.object(forecasting_service, '_get_weather_forecast') as mock_weather, \
+             patch.object(forecasting_service, '_get_traffic_forecast') as mock_traffic:
+            
+            # Setup mocks
+            mock_holiday.return_value = False
+            mock_weather.return_value = {
+                "temperature": 18.5,
+                "precipitation": 0.0,
+                "humidity": 65.0,
+                "weather_description": "Clear"
+            }
+            mock_traffic.return_value = {
+                "traffic_volume": 1200,
+                "pedestrian_count": 850
+            }
+            
+            # Execute test
+            features = await forecasting_service._prepare_forecast_features(sample_forecast_request)
+            
+            # Assertions
+            assert "date" in features
+            assert "day_of_week" in features
+            assert "is_weekend" in features
+            assert "is_holiday" in features
+            assert features["business_type"] == "individual"
+            assert features["temperature"] == 18.5
+            assert features["traffic_volume"] == 1200
+