using HospitalContracts.BindingModels;
using HospitalContracts.BusinessLogicsContracts;
using HospitalContracts.ViewModels;
using HospitalDataModels.Models;
using Microsoft.AspNetCore.Mvc;
using System.Numerics;

namespace HospitalWebApp.Controllers
{
	/// <summary>
	/// Контроллер для сущности "Пациент"
	/// </summary>
	public class PatientController : Controller
	{
		/// <summary>
		/// Логгер
		/// </summary>
		private readonly ILogger<PatientController> _logger;

		/// <summary>
		/// Конструктор
		/// </summary>
		/// <param name="logger"></param>
		public PatientController(ILogger<PatientController> logger)
		{
			_logger = logger;
		}

		/// <summary>
		/// Вывести список пациентов
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult Patients()
		{
			if (APIClient.Doctor == null)
			{
				return Redirect("~/Home/Enter");
			}

			return View(APIClient.GetRequest<List<PatientViewModel>>($"api/patient/getpatients?doctorId={APIClient.Doctor.Id}"));
		}

		/// <summary>
		/// Создать пациента
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult CreatePatient()
		{
			if (APIClient.Doctor == null)
			{
				return Redirect("~/Home/Enter");
			}

			ViewBag.Procedures = APIClient.GetRequest<List<ProcedureViewModel>>("api/procedure/getprocedures");
			return View();
		}

		/// <summary>
		/// Создать пациента
		/// </summary>
		/// <param name="fullname"></param>
		/// <param name="birthdate"></param>
		/// <param name="phone"></param>
		/// <param name="procedures"></param>
		/// <returns></returns>
		[HttpPost]
		public void CreatePatient(string fullname, DateTime birthdate, string phone, List<int> procedures)
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (string.IsNullOrEmpty(fullname) || birthdate == DateTime.MinValue || string.IsNullOrEmpty(phone) || procedures == null)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IProcedureModel> patientProcedures = new Dictionary<int, IProcedureModel>();
			foreach (var procedureId in procedures)
			{
				patientProcedures.Add(procedureId, APIClient.GetRequest<ProcedureViewModel>($"api/procedure/getprocedure?id={procedureId}"));
			}

			APIClient.PostRequest("api/patient/createpatient", new PatientBindingModel
			{
				FullName = fullname,
				BirthDate = birthdate,
				Phone = phone,
				DoctorId = APIClient.Doctor.Id,
				PatientProcedures = patientProcedures
			});

			Response.Redirect("Patients");
		}

		/// <summary>
		/// Редактировать пациента
		/// </summary>
		/// <returns></returns>
		[HttpGet]
		public IActionResult UpdatePatient(int id)
		{
			if (APIClient.Doctor == null)
			{
				return Redirect("~/Home/Enter");
			}

			ViewBag.Procedures = APIClient.GetRequest<List<ProcedureViewModel>>("api/procedure/getprocedures");
			return View(APIClient.GetRequest<PatientViewModel>($"api/patient/getpatient?id={id}"));
		}

		/// <summary>
		/// Редактировать пациента
		/// </summary>
		/// <param name="fullname"></param>
		/// <param name="birthdate"></param>
		/// <param name="phone"></param>
		/// <param name="procedures"></param>
		/// <returns></returns>
		[HttpPost]
		public void UpdatePatient(int id, string fullname, DateTime birthdate, string phone, List<int> procedures)
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (string.IsNullOrEmpty(fullname) || birthdate == DateTime.MinValue || string.IsNullOrEmpty(phone) || procedures == null)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IProcedureModel> patientProcedures = new Dictionary<int, IProcedureModel>();
			foreach (var procedureId in procedures)
			{
				patientProcedures.Add(procedureId, APIClient.GetRequest<ProcedureViewModel>($"api/procedure/getprocedure?id={procedureId}"));
			}

			APIClient.PostRequest("api/patient/updatepatient", new PatientBindingModel
			{
				Id = id,
				FullName = fullname,
				BirthDate = birthdate,
				Phone = phone,
				DoctorId = APIClient.Doctor.Id,
				PatientProcedures = patientProcedures
			});

			Response.Redirect("Patients");
		}

		/// <summary>
		/// Удалить пациента
		/// </summary>
		/// <returns></returns>
		[HttpPost]
		public void DeletePatient(int id)
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			APIClient.PostRequest($"api/patient/deletepatient", new PatientBindingModel
			{
				Id = id
			});

			Response.Redirect("Patients");
		}

		/// <summary>
		/// Выписать рецепт пациенту
		/// </summary>
		/// <returns></returns>
		/// <exception cref="Exception"></exception>
		[HttpGet]
		public IActionResult CreatePatientRecipe()
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			ViewBag.Patients = APIClient.GetRequest<List<PatientViewModel>>($"api/patient/getpatients?doctorId={APIClient.Doctor.Id}");
			ViewBag.Recipes = APIClient.GetRequest<List<RecipeViewModel>>($"api/recipe/getrecipes?doctorId={APIClient.Doctor.Id}");
			return View();
		}

		/// <summary>
		/// Выписать рецепт пациенту
		/// </summary>
		/// <param name="patientId"></param>
		/// <param name="recipes"></param>
		/// <exception cref="Exception"></exception>
		[HttpPost]
		public void CreatePatientRecipe(int patientId, List<int> recipes)
		{
			if (APIClient.Doctor == null)
			{
				throw new Exception("Необходимо авторизоваться!");
			}

			if (patientId <= 0 || recipes == null)
			{
				throw new Exception("Введены не все данные!");
			}

			Dictionary<int, IRecipeModel> patientRecipes = new Dictionary<int, IRecipeModel>();
			foreach (var recipeId in recipes)
			{
				patientRecipes.Add(recipeId, APIClient.GetRequest<RecipeViewModel>($"api/recipe/getrecipe?id={recipeId}"));
			}

			var patient = APIClient.GetRequest<PatientViewModel>($"api/patient/getpatient?id={patientId}");
			APIClient.PostRequest("api/patient/updatepatient", new PatientBindingModel
			{
				Id = patient!.Id,
				FullName = patient!.FullName,
				BirthDate = patient!.BirthDate,
				Phone = patient!.Phone,
				DoctorId = APIClient.Doctor.Id,
				PatientProcedures = patient!.PatientProcedures,
				PatientRecipes = patientRecipes
			});

			Response.Redirect("Patients");
		}
	}
}