# app/api/v1/vendor/analytics.py
"""
Vendor analytics and reporting endpoints.

Vendor Context: Uses token_vendor_id from JWT token (authenticated vendor API pattern)
"""

import logging

from fastapi import APIRouter, 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.exceptions import InvalidTokenException
from app.services.stats_service import stats_service
from models.database.user import User

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


def _get_vendor_id_from_token(current_user: User) -> int:
    """Helper to get vendor_id from JWT token."""
    if not hasattr(current_user, "token_vendor_id"):
        raise InvalidTokenException("Token missing vendor information. Please login again.")
    return current_user.token_vendor_id


@router.get("")
def get_vendor_analytics(
    period: str = Query("30d", description="Time period: 7d, 30d, 90d, 1y"),
    current_user: User = Depends(get_current_vendor_api),
    db: Session = Depends(get_db),
):
    """Get vendor analytics data for specified time period."""
    vendor_id = _get_vendor_id_from_token(current_user)
    return stats_service.get_vendor_analytics(db, vendor_id, period)