bakery-ia/services/data/app/api/sales.py

# ================================================================
# services/data/app/api/sales.py - UPDATED WITH UNIFIED AUTH
# ================================================================
"""Sales data API endpoints with unified authentication"""

from fastapi import APIRouter, Depends, HTTPException, UploadFile, File, Form, Query, Response
from fastapi.responses import StreamingResponse
from sqlalchemy.ext.asyncio import AsyncSession
from typing import List, Optional, Dict, Any
import uuid
from datetime import datetime
import base64
import structlog

from app.core.database import get_db
from app.schemas.sales import (
    SalesDataCreate, 
    SalesDataResponse, 
    SalesDataQuery,
    SalesDataImport,
    SalesImportResult,
    SalesValidationResult,
    SalesExportRequest
)
from app.services.sales_service import SalesService
from app.services.data_import_service import DataImportService
from app.services.messaging import (
    publish_sales_created,
    publish_data_imported,
    publish_export_completed
)

# Import unified authentication from shared library
from shared.auth.decorators import (
    get_current_user_dep,
    get_current_tenant_id_dep
)

router = APIRouter(tags=["sales"])
logger = structlog.get_logger()

@router.post("/", response_model=SalesDataResponse)
async def create_sales_record(
    sales_data: SalesDataCreate,
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Create a new sales record"""
    try:
        logger.debug("Creating sales record", 
                    product=sales_data.product_name, 
                    quantity=sales_data.quantity_sold,
                    tenant_id=tenant_id,
                    user_id=current_user["user_id"])
        
        # Override tenant_id from token/header
        sales_data.tenant_id = tenant_id
        
        record = await SalesService.create_sales_record(sales_data, db)
        
        # Publish event (non-blocking)
        try:
            await publish_sales_created({
                "tenant_id": tenant_id,
                "product_name": sales_data.product_name,
                "quantity_sold": sales_data.quantity_sold,
                "revenue": sales_data.revenue,
                "source": sales_data.source,
                "created_by": current_user["user_id"],
                "timestamp": datetime.utcnow().isoformat()
            })
        except Exception as pub_error:
            logger.warning("Failed to publish sales created event", error=str(pub_error))
            # Continue - event failure shouldn't break API
        
        logger.info("Successfully created sales record", 
                   record_id=record.id,
                   tenant_id=tenant_id)
        return record
        
    except Exception as e:
        logger.error("Failed to create sales record", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to create sales record: {str(e)}")

@router.post("/bulk", response_model=List[SalesDataResponse])
async def create_bulk_sales(
    sales_data: List[SalesDataCreate],
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Create multiple sales records"""
    try:
        logger.debug("Creating bulk sales records", 
                    count=len(sales_data),
                    tenant_id=tenant_id)
        
        # Override tenant_id for all records
        for record in sales_data:
            record.tenant_id = tenant_id
        
        records = await SalesService.create_bulk_sales(sales_data, db)
        
        # Publish event
        try:
            await publish_data_imported({
                "tenant_id": tenant_id,
                "type": "bulk_create",
                "records_created": len(records),
                "created_by": current_user["user_id"],
                "timestamp": datetime.utcnow().isoformat()
            })
        except Exception as pub_error:
            logger.warning("Failed to publish bulk import event", error=str(pub_error))
        
        logger.info("Successfully created bulk sales records", 
                   count=len(records),
                   tenant_id=tenant_id)
        return records
        
    except Exception as e:
        logger.error("Failed to create bulk sales records", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to create bulk sales records: {str(e)}")

@router.get("/", response_model=List[SalesDataResponse])
async def get_sales_data(
    start_date: Optional[datetime] = Query(None),
    end_date: Optional[datetime] = Query(None),
    product_name: Optional[str] = Query(None),
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Get sales data with filters"""
    try:
        logger.debug("Querying sales data", 
                    tenant_id=tenant_id,
                    start_date=start_date,
                    end_date=end_date,
                    product_name=product_name)
        
        query = SalesDataQuery(
            tenant_id=tenant_id,
            start_date=start_date,
            end_date=end_date,
            product_name=product_name
        )
        
        records = await SalesService.get_sales_data(query, db)
        
        logger.debug("Successfully retrieved sales data", 
                    count=len(records),
                    tenant_id=tenant_id)
        return records
        
    except Exception as e:
        logger.error("Failed to query sales data", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to query sales data: {str(e)}")

@router.post("/import", response_model=SalesImportResult)
async def import_sales_data(
    file: UploadFile = File(...),
    file_format: str = Form(...),
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Import sales data from file"""
    try:
        logger.info("Importing sales data", 
                   tenant_id=tenant_id,
                   format=file_format,
                   filename=file.filename,
                   user_id=current_user["user_id"])
        
        # Read file content
        content = await file.read()
        file_content = content.decode('utf-8')
        
        # Process import
        result = await DataImportService.process_upload(
            tenant_id, 
            file_content, 
            file_format, 
            db,
            filename=file.filename
        )
        
        if result["success"]:
            # Publish event
            try:
                await publish_data_imported({
                    "tenant_id": tenant_id,
                    "type": "file_import",
                    "format": file_format,
                    "filename": file.filename,
                    "records_created": result["records_created"],
                    "imported_by": current_user["user_id"],
                    "timestamp": datetime.utcnow().isoformat()
                })
            except Exception as pub_error:
                logger.warning("Failed to publish import event", error=str(pub_error))
        
        logger.info("Import completed", 
                   success=result["success"],
                   records_created=result.get("records_created", 0),
                   tenant_id=tenant_id)
        return result
        
    except Exception as e:
        logger.error("Failed to import sales data", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to import sales data: {str(e)}")

@router.post("/import/validate", response_model=SalesValidationResult)
async def validate_import_data(
    import_data: SalesDataImport,
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep)
):
    """Validate import data before processing"""
    try:
        logger.debug("Validating import data", tenant_id=tenant_id)
        
        # Override tenant_id
        import_data.tenant_id = tenant_id
        
        validation = await DataImportService.validate_import_data(
            import_data.model_dump()
        )
        
        logger.debug("Validation completed", 
                    is_valid=validation.get("is_valid", False),
                    tenant_id=tenant_id)
        return validation
        
    except Exception as e:
        logger.error("Failed to validate import data", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to validate import data: {str(e)}")

@router.get("/import/template/{format_type}")
async def get_import_template(
    format_type: str,
    current_user: Dict[str, Any] = Depends(get_current_user_dep)
):
    """Get import template for specified format"""
    try:
        logger.debug("Getting import template", 
                    format=format_type,
                    user_id=current_user["user_id"])
        
        template = await DataImportService.get_import_template(format_type)
        
        if "error" in template:
            logger.warning("Template generation error", error=template["error"])
            raise HTTPException(status_code=400, detail=template["error"])
        
        logger.debug("Template generated successfully", format=format_type)
        
        if format_type.lower() == "csv":
            return Response(
                content=template["template"],
                media_type="text/csv",
                headers={"Content-Disposition": f"attachment; filename={template['filename']}"}
            )
        elif format_type.lower() == "json":
            return Response(
                content=template["template"],
                media_type="application/json",
                headers={"Content-Disposition": f"attachment; filename={template['filename']}"}
            )
        elif format_type.lower() in ["excel", "xlsx"]:
            return Response(
                content=base64.b64decode(template["template"]),
                media_type=template["content_type"],
                headers={"Content-Disposition": f"attachment; filename={template['filename']}"}
            )
        else:
            return template
            
    except HTTPException:
        raise
    except Exception as e:
        logger.error("Failed to generate import template", error=str(e))
        raise HTTPException(status_code=500, detail=f"Failed to generate template: {str(e)}")

@router.get("/analytics")
async def get_sales_analytics(
    start_date: Optional[datetime] = Query(None, description="Start date"),
    end_date: Optional[datetime] = Query(None, description="End date"),
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Get sales analytics for tenant"""
    try:
        logger.debug("Getting sales analytics", 
                    tenant_id=tenant_id,
                    start_date=start_date,
                    end_date=end_date)
        
        analytics = await SalesService.get_sales_analytics(
            tenant_id, start_date, end_date, db
        )
        
        logger.debug("Analytics generated successfully", tenant_id=tenant_id)
        return analytics
        
    except Exception as e:
        logger.error("Failed to generate sales analytics", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to generate analytics: {str(e)}")

@router.post("/export")
async def export_sales_data(
    export_format: str = Query("csv", description="Export format: csv, excel, json"),
    start_date: Optional[datetime] = Query(None, description="Start date"),
    end_date: Optional[datetime] = Query(None, description="End date"),
    products: Optional[List[str]] = Query(None, description="Filter by products"),
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Export sales data in specified format"""
    try:
        logger.info("Exporting sales data", 
                   tenant_id=tenant_id,
                   format=export_format,
                   user_id=current_user["user_id"])
        
        export_result = await SalesService.export_sales_data(
            tenant_id, export_format, start_date, end_date, products, db
        )
        
        if not export_result:
            raise HTTPException(status_code=404, detail="No data found for export")
        
        # Publish export event
        try:
            await publish_export_completed({
                "tenant_id": tenant_id,
                "format": export_format,
                "exported_by": current_user["user_id"],
                "record_count": export_result.get("record_count", 0),
                "timestamp": datetime.utcnow().isoformat()
            })
        except Exception as pub_error:
            logger.warning("Failed to publish export event", error=str(pub_error))
        
        logger.info("Export completed successfully", 
                   tenant_id=tenant_id,
                   format=export_format)
        
        return StreamingResponse(
            iter([export_result["content"]]),
            media_type=export_result["media_type"],
            headers={"Content-Disposition": f"attachment; filename={export_result['filename']}"}
        )
        
    except HTTPException:
        raise
    except Exception as e:
        logger.error("Failed to export sales data", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to export sales data: {str(e)}")

@router.delete("/{record_id}")
async def delete_sales_record(
    record_id: str,
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Delete a sales record"""
    try:
        logger.info("Deleting sales record", 
                   record_id=record_id,
                   tenant_id=tenant_id,
                   user_id=current_user["user_id"])
        
        # Verify record belongs to tenant before deletion
        record = await SalesService.get_sales_record(record_id, db)
        if not record or record.tenant_id != tenant_id:
            raise HTTPException(status_code=404, detail="Sales record not found")
        
        success = await SalesService.delete_sales_record(record_id, db)
        
        if not success:
            raise HTTPException(status_code=404, detail="Sales record not found")
        
        logger.info("Sales record deleted successfully", 
                   record_id=record_id,
                   tenant_id=tenant_id)
        return {"status": "success", "message": "Sales record deleted successfully"}
        
    except HTTPException:
        raise
    except Exception as e:
        logger.error("Failed to delete sales record", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to delete sales record: {str(e)}")

@router.get("/summary")
async def get_sales_summary(
    period: str = Query("daily", description="Summary period: daily, weekly, monthly"),
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Get sales summary for specified period"""
    try:
        logger.debug("Getting sales summary", 
                    tenant_id=tenant_id,
                    period=period)
        
        summary = await SalesService.get_sales_summary(tenant_id, period, db)
        
        logger.debug("Summary generated successfully", tenant_id=tenant_id)
        return summary
        
    except Exception as e:
        logger.error("Failed to generate sales summary", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to generate summary: {str(e)}")

@router.get("/products")
async def get_products_list(
    tenant_id: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db: AsyncSession = Depends(get_db)
):
    """Get list of all products with sales data"""
    try:
        logger.debug("Getting products list", tenant_id=tenant_id)
        
        products = await SalesService.get_products_list(tenant_id, db)
        
        logger.debug("Products list retrieved", 
                    count=len(products),
                    tenant_id=tenant_id)
        return products
        
    except Exception as e:
        logger.error("Failed to get products list", 
                    error=str(e),
                    tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to get products list: {str(e)}")