using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore;
using EveryThing.Data;
using EveryThing.Models;
using EveryThing.Models.Transport;
using Microsoft.AspNetCore.Authorization;

namespace EveryThing.Pages.TransportLoadingOrder
{
    [Authorize(Roles = "Administrator,TransportThingUser")]
    public class IndexModel : PageModel
    {
        private readonly EveryThing.Data.ApplicationDbContext _context;
        private readonly UserManager<IdentityApplicationUser> _userManager;

        public IndexModel(EveryThing.Data.ApplicationDbContext context, UserManager<IdentityApplicationUser> userManager)
        {
            _context = context;
            _userManager = userManager;
        }

        public IList<Models.Transport.TransportLoadingOrder> TransportLoadingOrder { get;set; }

        public async Task OnGetAsync(string searchString)
        {
            ViewData["SearchString"] = searchString;

            var user = _userManager.GetUserAsync(User).Result;

            TransportLoadingOrder = await _context.TransportLoadingOrders
                .Include(t => t.Partner)
                .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                .OrderByDescending(x => x.OrderYear).ThenByDescending(x => x.OrderNumber)
                .ToListAsync();

            if (!string.IsNullOrEmpty(searchString))
            {
                TransportLoadingOrder = TransportLoadingOrder.Where(x => x.Company.Title.Contains(searchString) || x.OrderYear + "-" + x.OrderNumber == searchString).ToList();
            }
        }

        public IActionResult OnDeleteTransportLoadingOrder(int idLoadingOrder)
        {
            var user = _userManager.GetUserAsync(User).Result;
            var successful = true;
            var error = "";

            var transportLoadingOrder = _context.TransportLoadingOrders
                .Where(x => x.IdCompanyFk == user.IdCompanyFk)
                .FirstOrDefault(x => x.IdTransportLoadingOrder == idLoadingOrder);
            if (transportLoadingOrder != null)
            {
                var items = _context.TransportLoadingOrderLoadUnloads.Where(x => x.IdTransportLoadingOrderFk == idLoadingOrder).ToList();

                for (var i = 0; i < items.Count(); i++)
                {
                    _context.TransportLoadingOrderLoadUnloads.Remove(items[i]);
                }
                _context.TransportLoadingOrders.Remove(transportLoadingOrder);
                _context.SaveChanges();
            }
            else
            {
                successful = false;
                error = $"Transport loading order with ID: {idLoadingOrder} not found";
            }

            return new JsonResult(new { idLoadingOrder = idLoadingOrder, error = error, successful = successful });
        }
    }
}