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

namespace RouteGuideDatabaseImplement.Models
{
    /// <summary>
    /// Сущность "Расписание"
    /// </summary>
    public class Schedule : IScheduleModel
    {
        /// <summary>
        /// Идентификатор
        /// </summary>
        public int Id { get; private set; }

        /// <summary>
        /// Дата записи расписания
        /// </summary>
        [Required]
        public DateTime Date { get; private set; } = DateTime.Now;

        /// <summary>
        /// Время отправления
        /// </summary>
        [Required]
        public DateTime DepartureTime { get; private set; } = DateTime.MinValue;

        /// <summary>
        /// Время прибытия
        /// </summary>
        [Required]
        public DateTime ArrivalTime { get; private set; } = DateTime.MinValue;

        /// <summary>
        /// Периодичность движения транспорта
        /// </summary>
        [Required]
        public DateTime Frequency { get; private set; } = DateTime.MinValue;

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

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

        /// <summary>
        /// Создание модели
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public static Schedule? Create(RouteGuideDatabase context, ScheduleBindingModel model)
        {
            if (model == null)
            {
                return null;
            }

            return new Schedule()
            {
                Id = model.Id,
                Date = model.Date,
                DepartureTime = model.DepartureTime,
                ArrivalTime = model.ArrivalTime,
                Frequency = model.Frequency,
                RouteId = model.RouteId,
                Route = context.Routes
                    .FirstOrDefault(x => x.Id == model.RouteId)
            };
        }

        /// <summary>
        /// Изменение модели
        /// </summary>
        /// <param name="model"></param>
        public void Update(ScheduleBindingModel model)
        {
            if (model == null)
            {
                return;
            }

            Date = model.Date;
            DepartureTime = model.DepartureTime;
            ArrivalTime = model.ArrivalTime;
            Frequency = model.Frequency;
        }

        /// <summary>
        /// Получение модели
        /// </summary>
        public ScheduleViewModel GetViewModel => new()
        {
            Id = Id,
            Date = Date,
            DepartureTime = DepartureTime,
            ArrivalTime = ArrivalTime,
            Frequency = Frequency,
            RouteId = RouteId,
            RouteName = Route.Name
        };
    }
}