# services/pos/app/api/pos_config.py
"""
POS Configuration API Endpoints
"""

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

from app.core.database import get_db
from shared.auth.decorators import get_current_user_dep, get_current_tenant_id_dep

router = APIRouter(tags=["pos-config"])
logger = structlog.get_logger()


@router.get("/tenants/{tenant_id}/pos/configurations")
async def get_pos_configurations(
    tenant_id: UUID = Path(..., description="Tenant ID"),
    pos_system: Optional[str] = Query(None, description="Filter by POS system"),
    is_active: Optional[bool] = Query(None, description="Filter by active status"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    db=Depends(get_db)
):
    """Get POS configurations for a tenant"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement configuration retrieval
        # This is a placeholder for the basic structure
        return {
            "configurations": [],
            "total": 0,
            "supported_systems": ["square", "toast", "lightspeed"]
        }
        
    except Exception as e:
        logger.error("Failed to get POS configurations", error=str(e), tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to get POS configurations: {str(e)}")


@router.post("/tenants/{tenant_id}/pos/configurations")
async def create_pos_configuration(
    configuration_data: Dict[str, Any],
    tenant_id: UUID = Path(..., description="Tenant ID"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    current_user: Dict[str, Any] = Depends(get_current_user_dep),
    db=Depends(get_db)
):
    """Create a new POS configuration"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement configuration creation
        logger.info("Creating POS configuration", 
                   tenant_id=tenant_id,
                   pos_system=configuration_data.get("pos_system"),
                   user_id=current_user.get("user_id"))
        
        return {"message": "POS configuration created successfully", "id": "placeholder"}
        
    except Exception as e:
        logger.error("Failed to create POS configuration", error=str(e), tenant_id=tenant_id)
        raise HTTPException(status_code=500, detail=f"Failed to create POS configuration: {str(e)}")


@router.get("/tenants/{tenant_id}/pos/configurations/{config_id}")
async def get_pos_configuration(
    tenant_id: UUID = Path(..., description="Tenant ID"),
    config_id: UUID = Path(..., description="Configuration ID"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    db=Depends(get_db)
):
    """Get a specific POS configuration"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement configuration retrieval
        return {"message": "Configuration details", "id": str(config_id)}
        
    except Exception as e:
        logger.error("Failed to get POS configuration", error=str(e), 
                    tenant_id=tenant_id, config_id=config_id)
        raise HTTPException(status_code=500, detail=f"Failed to get POS configuration: {str(e)}")


@router.put("/tenants/{tenant_id}/pos/configurations/{config_id}")
async def update_pos_configuration(
    configuration_data: Dict[str, Any],
    tenant_id: UUID = Path(..., description="Tenant ID"),
    config_id: UUID = Path(..., description="Configuration ID"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    db=Depends(get_db)
):
    """Update a POS configuration"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement configuration update
        return {"message": "Configuration updated successfully"}
        
    except Exception as e:
        logger.error("Failed to update POS configuration", error=str(e), 
                    tenant_id=tenant_id, config_id=config_id)
        raise HTTPException(status_code=500, detail=f"Failed to update POS configuration: {str(e)}")


@router.delete("/tenants/{tenant_id}/pos/configurations/{config_id}")
async def delete_pos_configuration(
    tenant_id: UUID = Path(..., description="Tenant ID"),
    config_id: UUID = Path(..., description="Configuration ID"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    db=Depends(get_db)
):
    """Delete a POS configuration"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement configuration deletion
        return {"message": "Configuration deleted successfully"}
        
    except Exception as e:
        logger.error("Failed to delete POS configuration", error=str(e), 
                    tenant_id=tenant_id, config_id=config_id)
        raise HTTPException(status_code=500, detail=f"Failed to delete POS configuration: {str(e)}")


@router.post("/tenants/{tenant_id}/pos/configurations/{config_id}/test-connection")
async def test_pos_connection(
    tenant_id: UUID = Path(..., description="Tenant ID"),
    config_id: UUID = Path(..., description="Configuration ID"),
    current_tenant: str = Depends(get_current_tenant_id_dep),
    db=Depends(get_db)
):
    """Test connection to POS system"""
    try:
        # Verify tenant access
        if str(tenant_id) != current_tenant:
            raise HTTPException(status_code=403, detail="Access denied to this tenant")
        
        # TODO: Implement connection testing
        return {
            "status": "success",
            "message": "Connection test successful",
            "tested_at": "2024-01-01T00:00:00Z"
        }
        
    except Exception as e:
        logger.error("Failed to test POS connection", error=str(e), 
                    tenant_id=tenant_id, config_id=config_id)
        raise HTTPException(status_code=500, detail=f"Failed to test POS connection: {str(e)}")


@router.get("/pos/supported-systems")
async def get_supported_pos_systems():
    """Get list of supported POS systems"""
    return {
        "systems": [
            {
                "id": "square",
                "name": "Square POS",
                "description": "Square Point of Sale system",
                "features": ["payments", "inventory", "analytics", "webhooks"],
                "supported_regions": ["US", "CA", "AU", "JP", "GB", "IE", "ES", "FR"]
            },
            {
                "id": "toast",
                "name": "Toast POS",
                "description": "Toast restaurant POS system",
                "features": ["orders", "payments", "menu_management", "webhooks"],
                "supported_regions": ["US", "CA", "IE", "ES"]
            },
            {
                "id": "lightspeed",
                "name": "Lightspeed Restaurant",
                "description": "Lightspeed restaurant management system",
                "features": ["orders", "inventory", "reservations", "webhooks"],
                "supported_regions": ["US", "CA", "EU", "AU"]
            }
        ]
    }