# app/modules/analytics/routes/api/vendor.py
"""
Vendor Analytics API

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, get_db, require_module_access
from app.modules.billing.dependencies.feature_gate import RequireFeature
from app.modules.analytics.services import stats_service
from app.modules.analytics.schemas import (
    VendorAnalyticsCatalog,
    VendorAnalyticsImports,
    VendorAnalyticsInventory,
    VendorAnalyticsResponse,
)
from app.modules.billing.models import FeatureCode
from app.modules.enums import FrontendType
from app.modules.tenancy.models import User

router = APIRouter(
    prefix="/analytics",
    dependencies=[Depends(require_module_access("analytics", FrontendType.VENDOR))],
)
vendor_router = router  # Alias for discovery
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"]
        ),
    )
