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

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.

Feature Requirements:
- basic_reports: Basic analytics (Essential tier)
- analytics_dashboard: Advanced analytics (Business tier)
"""

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.core.feature_gate import RequireFeature
from app.services.stats_service import stats_service
from models.database.feature import FeatureCode
from models.database.user import User
from app.modules.analytics.schemas import (
    VendorAnalyticsCatalog,
    VendorAnalyticsImports,
    VendorAnalyticsInventory,
    VendorAnalyticsResponse,
)

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


@router.get("", response_model=VendorAnalyticsResponse)
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),
    _: None = Depends(RequireFeature(FeatureCode.BASIC_REPORTS, FeatureCode.ANALYTICS_DASHBOARD)),
):
    """Get vendor analytics data for specified time period."""
    data = stats_service.get_vendor_analytics(db, current_user.token_vendor_id, period)

    return VendorAnalyticsResponse(
        period=data["period"],
        start_date=data["start_date"],
        imports=VendorAnalyticsImports(count=data["imports"]["count"]),
        catalog=VendorAnalyticsCatalog(
            products_added=data["catalog"]["products_added"]
        ),
        inventory=VendorAnalyticsInventory(
            total_locations=data["inventory"]["total_locations"]
        ),
    )