using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.Net.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.eShopOnContainers.WebMVC.Models;
using Microsoft.Extensions.Options;
using Newtonsoft.Json;
using Microsoft.eShopOnContainers.WebMVC.Services;
using Microsoft.eShopOnContainers.WebMVC.Models.CatalogViewModels;
using BikeSharing_Private_Web_Site.Services.Pagination;

namespace Microsoft.eShopOnContainers.WebMVC.Controllers
{
    public class CatalogController : Controller
    {
        private ICatalogService _catalogSvc;

        public CatalogController(ICatalogService catalogSvc)
        {
            _catalogSvc = catalogSvc;
        }

        public async Task<IActionResult> Index(int? BrandFilterApplied, int? TypesFilterApplied, int? page)
        {
            var vm = new IndexViewModel()
            {
                CatalogItems = await _catalogSvc.GetCatalogItems(6 * (page ?? 0), 6),
                Brands = _catalogSvc.GetBrands(),
                Types = _catalogSvc.GetTypes(),
                BrandFilterApplied = BrandFilterApplied ?? 0,
                TypesFilterApplied = TypesFilterApplied ?? 0,
                PaginationInfo = new PaginationInfo()
                {
                    ActualPage = page ?? 0,
                    ItemsPerPage = 6,
                    TotalItems = _catalogSvc.TotalItems, 
                    TotalPages = int.Parse(Math.Round(((decimal)_catalogSvc.TotalItems / 6), MidpointRounding.AwayFromZero).ToString())
                }
            };

            vm.PaginationInfo.Next = (vm.PaginationInfo.ActualPage == vm.PaginationInfo.TotalPages - 1) ? "is-disabled" : "";
            vm.PaginationInfo.Previous = (vm.PaginationInfo.ActualPage == 0) ? "is-disabled" : "";

            return View(vm);
        }

        public IActionResult Error()
        {
            return View();
        }
    }
}