using MongoDB.Bson.Serialization.Attributes;
using MongoDB.Bson;
using RouteGuideDataModels.Models;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using RouteGuideContracts.BindingModels;
using RouteGuideContracts.ViewModels;
using MongoDB.Driver;

namespace RouteGuideMongoDBImplement.Models
{
	/// <summary>
	/// Сущность "Расписание"
	/// </summary>
	public class Schedule : IScheduleModel<string>
	{
		/// <summary>
		/// Идентификатор
		/// </summary>
		[BsonId]
		[BsonElement("_id")]
		[BsonRepresentation(BsonType.ObjectId)]
		public string? Id { get; private set; }

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

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

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

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

		/// <summary>
		/// Идентификатор маршрута
		/// </summary>
		[BsonRequired]
		[BsonElement("route_id")]
		public string? RouteId { get; private set; }

		/// <summary>
		/// Сущность "Маршрут"
		/// </summary>
		[BsonIgnoreIfNull]
		[BsonIgnoreIfDefault]
		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()
			{
				Date = model.Date,
				DepartureTime = model.DepartureTime,
				ArrivalTime = model.ArrivalTime,
				Frequency = model.Frequency,
				RouteId = model.RouteId.ToString(),
				Route = context.Routes
					.Find(Builders<Route>.Filter.Eq(x => x.Id, model.RouteId))
					.FirstOrDefault()
			};
		}

		/// <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
		};
	}
}