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

from app.core.database import get_db
from app.dependencies.auth import get_current_admin
from app.models.user import User
from app.schemas.admin import (
    DashboardSummary,
    OrdersPerStatus,
    SalesOverTime,
    SalesSummary,
    TimePeriod,
    TopCategorySales,
    TopCustomerSales,
    TopProductSales,
)
from app.services.admin import AdminDashboardService

router = APIRouter()

@router.get("/dashboard", response_model=DashboardSummary)
async def get_dashboard_summary(
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get a summary of key metrics for the admin dashboard.
    """
    return AdminDashboardService.get_dashboard_summary(db)

@router.get("/sales/summary", response_model=SalesSummary)
async def get_sales_summary(
    period: TimePeriod = TimePeriod.LAST_30_DAYS,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get sales summary for a specific time period.
    """
    return AdminDashboardService.get_sales_summary(db, period)

@router.get("/sales/over-time", response_model=SalesOverTime)
async def get_sales_over_time(
    period: TimePeriod = TimePeriod.LAST_30_DAYS,
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get sales data over time for a specific period.
    """
    return AdminDashboardService.get_sales_over_time(db, period)

@router.get("/sales/top-categories", response_model=TopCategorySales)
async def get_top_categories(
    period: TimePeriod = TimePeriod.LAST_30_DAYS,
    limit: int = Query(5, ge=1, le=50),
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get top selling categories for a specific period.
    """
    return AdminDashboardService.get_top_categories(db, period, limit)

@router.get("/sales/top-products", response_model=TopProductSales)
async def get_top_products(
    period: TimePeriod = TimePeriod.LAST_30_DAYS,
    limit: int = Query(5, ge=1, le=50),
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get top selling products for a specific period.
    """
    return AdminDashboardService.get_top_products(db, period, limit)

@router.get("/sales/top-customers", response_model=TopCustomerSales)
async def get_top_customers(
    period: TimePeriod = TimePeriod.LAST_30_DAYS,
    limit: int = Query(5, ge=1, le=50),
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get top customers for a specific period.
    """
    return AdminDashboardService.get_top_customers(db, period, limit)

@router.get("/orders/by-status", response_model=list[OrdersPerStatus])
async def get_orders_by_status(
    db: Session = Depends(get_db),
    current_user: User = Depends(get_current_admin)
):
    """
    Get order counts by status.
    """
    return AdminDashboardService.get_orders_by_status(db)