Coursach/Course/ImplementerApp/Controllers/ProductionController.cs

using Contracts.BindingModels;
using Contracts.ViewModels;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;

namespace ImplementerApp.Controllers
{
    public class ProductionController : Controller
    {
        private readonly ILogger<ProductionController> _logger;
        private readonly ImplementerData _data;
        public ProductionController(ILogger<ProductionController> logger, ImplementerData data)
        {
            _logger = logger;
            _data = data;
        }
        private bool IsLoggedIn { get { return UserImplementer.user != null; } }
        private int UserId { get { return UserImplementer.user!.Id; } }
        [HttpGet]
        public IActionResult IndexProduction()
        {
            if (!IsLoggedIn)
                return RedirectToAction("IndexNonReg", "Home");
            try
            {
                var productions = _data.GetProductions(UserImplementer.user!.Id);
                return View(productions);
            } catch
            {
                return RedirectToAction("IndexNonReg", "Home");
            }
        }
        [HttpPost]
        public IActionResult IndexProduction(int id)
        {
            try
            {
                _data.DeleteProduction(id);
                return RedirectToAction("IndexProduction");

            } catch
            {
                return RedirectToAction("IndexNonReg");
            }
        }
        [HttpGet]
        public IActionResult CreateProduction(int id)
        {
            if (!IsLoggedIn)
                return RedirectToAction("IndexNonReg", "Home");
            try
            {
                var details = _data.GetDetails(UserImplementer.user!.Id);
                ViewBag.AllDetails = details;
                if (id != 0)
                {
                    var value = _data.GetProduction(id);
                    if (value != null)
                        return View(value);
                }
            } catch
            {
                return RedirectToAction("IndexProduction");
            }
            return View(new ProductionViewModel());
        }
        [HttpPost]
        public IActionResult CreateProduction(int id, string title, int[] detailIds)
        {
            try
            {
                ProductionBindingModel model = new ProductionBindingModel();
                model.Id = id;
                model.Name = title;
                model.UserId = UserImplementer.user!.Id;
                var details = _data.GetDetails(UserImplementer.user!.Id);
                double sum = 0;
                for (int i = 0; i < detailIds.Length; i++)
                {
                    var detail = details!.FirstOrDefault(x => x.Id == detailIds[i])!;
                    model.ProductionDetails[detailIds[i]] = detail;
                    sum += detail.Cost;
                }
                model.Cost = sum;
                bool changed = false;
                if (model.ProductionDetails.Count > 0)
                {
                    if (id != 0)
                    {
                        changed = _data.UpdateProduction(model);
                    }
                    else
                    {
                        changed = _data.CreateProduction(model);
                    }
                }
                if (changed)
                    return RedirectToAction("IndexProduction");
                else
                {
                    ViewBag.AllDetails = details;
                    return View(model);
                }
            } catch
            {
                return RedirectToAction("IndexProduction");
            }
        }

        [ResponseCache(Duration = 0, Location = ResponseCacheLocation.None, NoStore = true)]
        public IActionResult Error()
        {
            return View();
        }
    }
}