# app/api/v1/vendor/marketplace.py
"""
Marketplace import endpoints for vendors.

Vendor Context: Uses token_vendor_id from JWT token (authenticated vendor API pattern).
The get_current_vendor_api dependency guarantees token_vendor_id is present.
"""

import logging

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

from app.api.deps import get_current_vendor_api
from app.core.database import get_db
from app.services.marketplace_import_job_service import marketplace_import_job_service
from app.services.vendor_service import vendor_service
from app.tasks.background_tasks import process_marketplace_import
from middleware.decorators import rate_limit
from models.database.user import User
from models.schema.marketplace_import_job import (
    MarketplaceImportJobRequest,
    MarketplaceImportJobResponse,
)

router = APIRouter(prefix="/marketplace")
logger = logging.getLogger(__name__)


@router.post("/import", response_model=MarketplaceImportJobResponse)
@rate_limit(max_requests=10, window_seconds=3600)
async def import_products_from_marketplace(
    request: MarketplaceImportJobRequest,
    background_tasks: BackgroundTasks,
    current_user: User = Depends(get_current_vendor_api),
    db: Session = Depends(get_db),
):
    """Import products from marketplace CSV with background processing (Protected).

    The `language` parameter specifies the language code for product
    translations (e.g., 'en', 'fr', 'de'). Default is 'en'.

    For multi-language imports, call this endpoint multiple times with
    different language codes and CSV files containing translations.
    """
    vendor = vendor_service.get_vendor_by_id(db, current_user.token_vendor_id)

    logger.info(
        f"Starting marketplace import: {request.marketplace} for vendor {vendor.vendor_code} "
        f"by user {current_user.username} (language={request.language})"
    )

    # Create import job (vendor comes from token)
    import_job = marketplace_import_job_service.create_import_job(
        db, request, vendor, current_user
    )
    db.commit()

    # Process in background with language parameter
    background_tasks.add_task(
        process_marketplace_import,
        import_job.id,
        request.source_url,
        request.marketplace,
        vendor.id,
        request.batch_size or 1000,
        request.language,  # Pass language to background task
    )

    return MarketplaceImportJobResponse(
        job_id=import_job.id,
        status="pending",
        marketplace=request.marketplace,
        vendor_id=import_job.vendor_id,
        vendor_code=vendor.vendor_code,
        vendor_name=vendor.name,
        source_url=request.source_url,
        language=request.language,
        message=f"Marketplace import started from {request.marketplace}. "
        f"Check status with /import-status/{import_job.id}",
        imported=0,
        updated=0,
        total_processed=0,
        error_count=0,
        created_at=import_job.created_at,
    )


@router.get("/imports/{job_id}", response_model=MarketplaceImportJobResponse)
def get_marketplace_import_status(
    job_id: int,
    current_user: User = Depends(get_current_vendor_api),
    db: Session = Depends(get_db),
):
    """Get status of marketplace import job (Protected)."""
    # Service validates that job belongs to vendor and raises UnauthorizedVendorAccessException if not
    job = marketplace_import_job_service.get_import_job_for_vendor(
        db, job_id, current_user.token_vendor_id
    )

    return marketplace_import_job_service.convert_to_response_model(job)


@router.get("/imports", response_model=list[MarketplaceImportJobResponse])
def get_marketplace_import_jobs(
    marketplace: str | None = Query(None, description="Filter by marketplace"),
    skip: int = Query(0, ge=0),
    limit: int = Query(50, ge=1, le=100),
    current_user: User = Depends(get_current_vendor_api),
    db: Session = Depends(get_db),
):
    """Get marketplace import jobs for current vendor (Protected)."""
    vendor = vendor_service.get_vendor_by_id(db, current_user.token_vendor_id)

    jobs = marketplace_import_job_service.get_import_jobs(
        db=db,
        vendor=vendor,
        user=current_user,
        marketplace=marketplace,
        skip=skip,
        limit=limit,
    )

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