<?php

namespace App\Modules\Sales\Contracts;

interface SalesServiceInterface
{
    public function getThisMonthRevenue(): float;
    public function getSalesTrend(int $days = 30): array;
    public function getTopSellingProducts(int $limit = 5): \Illuminate\Support\Collection;
    public function getTopSellingByQuantity(int $limit = 5): \Illuminate\Support\Collection;
}
