using Microsoft.AspNetCore.Mvc;
using PolyclinicContracts.BindingModels;
using PolyclinicContracts.BusinessLogicsContracts;
using PolyclinicContracts.SearchModels;
using PolyclinicContracts.ViewModels;
using PolyclinicDataModels.Models;
using PolyclinicWebAppImplementer.Models;

namespace PolyclinicWebAppImplementer.Controllers
{
    public class SymptomesController : Controller
    {
        private readonly ISymptomLogic _symptomLogic;
        private readonly IDiagnoseLogic _diagnoseLogic;
        public SymptomesController(ISymptomLogic symptomLogic, IDiagnoseLogic diagnoseLogic)
        {
            _symptomLogic = symptomLogic;
            _diagnoseLogic = diagnoseLogic;
        }
        [HttpGet]
        public IActionResult Index()
        {
            var currentUser = LoginManager.LogginedUser;
            if (currentUser == null)
            {
                return RedirectToAction("Login", "User");
            }
            List<SymptomViewModel> symptomes = _symptomLogic.ReadList();
            ViewData["Title"] = "Список симптомов";
            return View("SymptomesList", symptomes);
        }
        [HttpGet]
        [HttpPost]
        public IActionResult Add(SymptomFormModel model, int[] selectedDiagnoses)
        {
            var currentUser = LoginManager.LogginedUser;
            if (currentUser == null)
            {
                return RedirectToAction("Login", "User");
            }
            if (HttpContext.Request.Method == "GET")
            {
                ViewData["Title"] = "Новый симптом";
                model = new()
                {
                    Diagnoses = _diagnoseLogic.ReadList().Select(x => (x, false)).ToList()
                };
                return View("SymptomForm", model);
            }
            else
            {
                var allDiagnoses = _diagnoseLogic.ReadList();
                SymptomBindingModel symptom = new SymptomBindingModel
                {
                    Name = model.SymptomViewModel.Name,
                    Comment = model.SymptomViewModel.Comment,
                    SymptomDiagnoses = selectedDiagnoses
                        .ToDictionary(
                            x => x,
                            x => allDiagnoses.Where(y => y.Id == x) as IDiagnoseModel
                        )
                };
                _symptomLogic.Create(symptom);
                return RedirectToAction("Index");
            }
        }
        [HttpGet]
        [HttpPost]
        public IActionResult Edit(int id, SymptomFormModel model, int[] selectedDiagnoses)
        {
            var currentUser = LoginManager.LogginedUser;
            if (currentUser == null)
            {
                return RedirectToAction("Login", "User");
            }
            if (HttpContext.Request.Method == "GET")
            {
                var obj = _symptomLogic.ReadElement(new SymptomSearchModel { Id = id });
                model = new()
                {
                    SymptomViewModel = obj,
                    Diagnoses = _diagnoseLogic.ReadList().Select(x => (x, obj.SymptomDiagnoses.ContainsKey(x.Id))).ToList()
                };
                ViewData["Title"] = "Редактировать симптом";
                return View("SymptomForm", model);
            }
            else
            {
                var allDiagnoses = _diagnoseLogic.ReadList();
                SymptomBindingModel symptom = new SymptomBindingModel
                {
                    Id = id,
                    Name = model.SymptomViewModel.Name,
                    Comment = model.SymptomViewModel.Comment,
                    SymptomDiagnoses = selectedDiagnoses
                        .ToDictionary(
                            x => x,
                            x => allDiagnoses.Where(y => y.Id == x) as IDiagnoseModel
                        )
                };
                _symptomLogic.Update(symptom);
                return RedirectToAction("Index");
            }
        }
        [HttpPost]
        public IActionResult Delete(int id)
        {
            var currentUser = LoginManager.LogginedUser;
            if (currentUser == null)
            {
                return RedirectToAction("Login", "User");
            }
            var obj = _symptomLogic.ReadElement(new SymptomSearchModel { Id = id });
            if (obj != null)
            {
                _symptomLogic.Delete(new SymptomBindingModel { Id = obj.Id });
            }
            return RedirectToAction("Index");
        }
    }
}