# app/api/v1/marketplace.py
"""
Marketplace endpoints - simplified with service-level exception handling.

This module provides classes and functions for:
- Product import from marketplace CSV files
- Import job management and monitoring
- Import statistics and job cancellation
"""

import logging
from typing import List, Optional

from fastapi import APIRouter, BackgroundTasks, Depends, 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.schemas.marketplace import (MarketplaceImportJobResponse,
                                        MarketplaceImportRequest)
from models.database.user import User

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


@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)."""
    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}",
    )


@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)."""
    job = marketplace_service.get_import_job_by_id(db, job_id, current_user)
    return marketplace_service.convert_to_response_model(job)


@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)."""
    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]


@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)."""
    return marketplace_service.get_job_stats(db, current_user)


@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)."""
    job = marketplace_service.cancel_import_job(db, job_id, current_user)
    return marketplace_service.convert_to_response_model(job)


@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)."""
    marketplace_service.delete_import_job(db, job_id, current_user)
    return {"message": "Marketplace import job deleted successfully"}