using HospitalContracts.BindingModels;
using HospitalContracts.ViewModels;
using HospitalDataModels.Models;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace HospitalDatabaseImplement.Models
{
    /// <summary>
    /// Сущность "Болезнь"
    /// </summary>
    public class Disease : IDiseaseModel
    {
        /// <summary>
        /// Идентификатор
        /// </summary>
        public int Id { get; private set; }

        /// <summary>
        /// Название болезни
        /// </summary>
        [Required]
        [MaxLength(30)]
        public string Name { get; private set; } = string.Empty;

        /// <summary>
        /// Симптомы заболевания
        /// </summary>
        [MaxLength(100)]
        public string? Symptoms { get; private set; }

        /// <summary>
        /// Идентификатор рецепта
        /// </summary>
        [ForeignKey("RecipeId")]
        public int RecipeId { get; private set; }

        /// <summary>
        /// Сущность "Рецепт"
        /// </summary>
        public virtual Recipe Recipe { get; private set; } = new();

        /// <summary>
        /// Создать сущность
        /// </summary>
        /// <param name="context"></param>
        /// <param name="model"></param>
        /// <returns></returns>
        public static Disease? Create(HospitalDatabase context, DiseaseBindingModel model)
        {
            if (model == null)
            {
                return null;
            }

            return new Disease()
            {
                Id = model.Id,
                Name = model.Name,
                Symptoms = model.Symptoms,
                RecipeId = model.RecipeId,
                Recipe = context.Recipes
                    .First(x => x.Id == model.RecipeId)
            };
        }

        /// <summary>
        /// Изменить сущность
        /// </summary>
        /// <param name="model"></param>
        public void Update(HospitalDatabase context, DiseaseBindingModel model)
        {
            if (model == null)
            {
                return;
            }

            Name = model.Name;
            Symptoms = model.Symptoms;
            RecipeId = model.RecipeId;
            Recipe = context.Recipes
                    .First(x => x.Id == model.RecipeId);

		}

        /// <summary>
        /// Получить модель представления
        /// </summary>
        public DiseaseViewModel GetViewModel => new()
        {
            Id = Id,
            Name = Name,
            Symptoms = Symptoms,
            RecipeId = RecipeId
        };
    }
}