"""
POS Transactions API Endpoints
ATOMIC layer - Basic CRUD operations for POS transactions
"""

from fastapi import APIRouter, Depends, HTTPException, Path, Query
from typing import Optional, Dict, Any
from uuid import UUID
from datetime import datetime
import structlog

from app.core.database import get_db
from shared.auth.decorators import get_current_user_dep
from shared.auth.access_control import require_user_role
from shared.routing import RouteBuilder

router = APIRouter()
logger = structlog.get_logger()
route_builder = RouteBuilder('pos')


@router.get(
    route_builder.build_base_route("transactions"),
    response_model=dict
)
@require_user_role(['viewer', 'member', 'admin', 'owner'])
async def list_pos_transactions(
    tenant_id: UUID = Path(...),
    pos_system: Optional[str] = Query(None),
    start_date: Optional[datetime] = Query(None),
    end_date: Optional[datetime] = Query(None),
    status: Optional[str] = Query(None),
    is_synced: Optional[bool] = Query(None),
    limit: int = Query(50, ge=1, le=200),
    offset: int = Query(0, ge=0),
    current_user: dict = Depends(get_current_user_dep),
    db=Depends(get_db)
):
    """List POS transactions for a tenant"""
    try:
        return {
            "transactions": [],
            "total": 0,
            "has_more": False,
            "summary": {
                "total_amount": 0,
                "transaction_count": 0,
                "sync_status": {
                    "synced": 0,
                    "pending": 0,
                    "failed": 0
                }
            }
        }
    except Exception as e:
        logger.error("Failed to list POS transactions", error=str(e), tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to list transactions: {str(e)}")


@router.get(
    route_builder.build_resource_detail_route("transactions", "transaction_id"),
    response_model=dict
)
@require_user_role(['viewer', 'member', 'admin', 'owner'])
async def get_pos_transaction(
    tenant_id: UUID = Path(...),
    transaction_id: UUID = Path(...),
    current_user: dict = Depends(get_current_user_dep),
    db=Depends(get_db)
):
    """Get a specific POS transaction"""
    try:
        return {
            "id": str(transaction_id),
            "tenant_id": str(tenant_id),
            "status": "completed",
            "is_synced": True
        }
    except Exception as e:
        logger.error("Failed to get POS transaction", error=str(e),
                    tenant_id=tenant_id, transaction_id=transaction_id)
        raise HTTPException(status_code=500, detail=f"Failed to get transaction: {str(e)}")