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

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

		/// <summary>
		/// Номерной знак
		/// </summary>
		[BsonRequired]
		public string License { get; private set; } = string.Empty;

		/// <summary>
		/// Тип транспортного средства
		/// </summary>
		[BsonRequired]
		public TransportType Type { get; private set; } = TransportType.Автобус;

		/// <summary>
		/// Вместимость (количество пассажиров)
		/// </summary>
		[BsonRequired]
		public int Capacity { get; private set; }

		/// <summary>
		/// Идентификатор водителя
		/// </summary>
		[BsonRequired]
		[BsonElement("driver_id")]
		public string? DriverId { get; private set; }

		/// <summary>
		/// Сущность "Водитель"
		/// </summary>
		[BsonIgnoreIfNull]
		[BsonIgnoreIfDefault]
		public virtual Driver Driver { get; private set; } = new();

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

			return new Transport()
			{
				License = model.License,
				Type = model.Type,
				Capacity = model.Capacity,
				DriverId = model.DriverId.ToString(),
				Driver = context.Drivers
					.Find(Builders<Driver>.Filter.Eq(x => x.Id, model.DriverId))
					.FirstOrDefault()
			};
		}

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

			License = model.License;
			Capacity = model.Capacity;
		}

		/// <summary>
		/// Получение модели
		/// </summary>
		public TransportViewModel GetViewModel => new()
		{
			Id = Id!,
			License = License,
			Type = Type,
			Capacity = Capacity,
			DriverId = DriverId!,
			DriverName = Driver.FullName
		};
	}
}