# app/api/v1/marketplace.py
"""Summary description ....

This module provides classes and functions for:
- ....
- ....
- ....
"""

import logging
from typing import List, Optional

from fastapi import APIRouter, BackgroundTasks, Depends, HTTPException, Query
from sqlalchemy.orm import Session

from app.api.deps import get_current_user
from app.core.database import get_db
from app.services.marketplace_service import marketplace_service
from app.tasks.background_tasks import process_marketplace_import
from middleware.decorators import rate_limit
from models.api.marketplace import (MarketplaceImportJobResponse,
                                    MarketplaceImportRequest)
from models.database.user import User

router = APIRouter()
logger = logging.getLogger(__name__)


# Marketplace Import Routes (Protected)
@router.post("/marketplace/import-product", response_model=MarketplaceImportJobResponse)
@rate_limit(max_requests=10, window_seconds=3600)  # Limit marketplace imports
async def import_products_from_marketplace(
    request: MarketplaceImportRequest,
    background_tasks: BackgroundTasks,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """Import products from marketplace CSV with background processing (Protected)."""
    try:
        logger.info(
            f"Starting marketplace import: {request.marketplace} -> {request.shop_code} by user {current_user.username}"
        )

        # Create import job through service
        import_job = marketplace_service.create_import_job(db, request, current_user)

        # Process in background
        background_tasks.add_task(
            process_marketplace_import,
            import_job.id,
            request.url,
            request.marketplace,
            request.shop_code,
            request.batch_size or 1000,
        )

        return MarketplaceImportJobResponse(
            job_id=import_job.id,
            status="pending",
            marketplace=request.marketplace,
            shop_code=request.shop_code,
            shop_id=import_job.shop_id,
            shop_name=import_job.shop_name,
            message=f"Marketplace import started from {request.marketplace}. Check status with "
            f"/import-status/{import_job.id}",
        )

    except ValueError as e:
        raise HTTPException(status_code=404, detail=str(e))
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e))
    except Exception as e:
        logger.error(f"Error starting marketplace import: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")


@router.get(
    "/marketplace/import-status/{job_id}", response_model=MarketplaceImportJobResponse
)
def get_marketplace_import_status(
    job_id: int,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """Get status of marketplace import job (Protected)."""
    try:
        job = marketplace_service.get_import_job_by_id(db, job_id, current_user)
        return marketplace_service.convert_to_response_model(job)

    except ValueError as e:
        raise HTTPException(status_code=404, detail=str(e))
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e))
    except Exception as e:
        logger.error(f"Error getting import job status {job_id}: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")


@router.get(
    "/marketplace/import-jobs", response_model=List[MarketplaceImportJobResponse]
)
def get_marketplace_import_jobs(
    marketplace: Optional[str] = Query(None, description="Filter by marketplace"),
    shop_name: Optional[str] = Query(None, description="Filter by shop name"),
    skip: int = Query(0, ge=0),
    limit: int = Query(50, ge=1, le=100),
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """Get marketplace import jobs with filtering (Protected)."""
    try:
        jobs = marketplace_service.get_import_jobs(
            db=db,
            user=current_user,
            marketplace=marketplace,
            shop_name=shop_name,
            skip=skip,
            limit=limit,
        )

        return [marketplace_service.convert_to_response_model(job) for job in jobs]

    except Exception as e:
        logger.error(f"Error getting import jobs: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")


@router.get("/marketplace/marketplace-import-stats")
def get_marketplace_import_stats(
    db: Session = Depends(get_db), current_user: User = Depends(get_current_user)
):
    """Get statistics about marketplace import jobs (Protected)."""
    try:
        stats = marketplace_service.get_job_stats(db, current_user)
        return stats

    except Exception as e:
        logger.error(f"Error getting import stats: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")


@router.put(
    "/marketplace/import-jobs/{job_id}/cancel",
    response_model=MarketplaceImportJobResponse,
)
def cancel_marketplace_import_job(
    job_id: int,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """Cancel a pending or running marketplace import job (Protected)."""
    try:
        job = marketplace_service.cancel_import_job(db, job_id, current_user)
        return marketplace_service.convert_to_response_model(job)

    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e))
    except Exception as e:
        logger.error(f"Error cancelling import job {job_id}: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")


@router.delete("/marketplace/import-jobs/{job_id}")
def delete_marketplace_import_job(
    job_id: int,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_user),
):
    """Delete a completed marketplace import job (Protected)."""
    try:
        marketplace_service.delete_import_job(db, job_id, current_user)
        return {"message": "Marketplace import job deleted successfully"}

    except ValueError as e:
        raise HTTPException(status_code=400, detail=str(e))
    except PermissionError as e:
        raise HTTPException(status_code=403, detail=str(e))
    except Exception as e:
        logger.error(f"Error deleting import job {job_id}: {str(e)}")
        raise HTTPException(status_code=500, detail="Internal server error")