using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using WebVentaCoche.DataBase;
using WebVentaCoche.Enums;
using WebVentaCoche.ViewModels;

namespace WebVentaCoche.Controllers
{
    [Authorize(Roles = "Administrador")]
    public class SalesController : Controller
    {
        private readonly ApplicationDbContext _context;
        public SalesController(ApplicationDbContext context)
        {
            _context = context;
        }

        //GET:/Sales/
        public IActionResult Index()
        {
            return View();
        }

        //GET:/Sales/GetMonthlyData
        [HttpGet]
        public async Task<IActionResult> GetMonthlyData()
        {
            var query =
                from d in _context.OrderDetails
                where d.Order.Status == OrderStatus.Delivered  
                let m = d.Order.OrderDate
                group d by new { d.Product.Name, Year = m.Year, Month = m.Month } into g
                orderby g.Key.Name, g.Key.Year, g.Key.Month
                select new SalesViewModel
                {
                    ProductName = g.Key.Name!,
                    Month = $"{g.Key.Year}-{g.Key.Month:D2}",
                    Units = g.Sum(x => x.Quantity)
                };

            var data = await query.ToListAsync();
            return Json(data);
        }

    }
}