using System.Collections.Generic;
using System.Linq;
using YourNamespace.Entities;
using YourNamespace.Repositories;

namespace YourNamespace.Repositories.Implementations
{
    public class PassengerRepository : IPassengerRepository
    {
        private readonly List<Passenger> _passengers = new List<Passenger>();
        private int _nextId = 1;

        public IEnumerable<Passenger> ReadPassengers()
        {
            return _passengers;
        }

        public Passenger ReadPassengerById(int id)
        {
            return _passengers.FirstOrDefault(p => p.Id == id);
        }

        public void CreatePassenger(Passenger passenger)
        {
            var newPassenger = Passenger.CreateEntity(_nextId++, passenger.FirstName, passenger.LastName, passenger.PassportNumber);
            _passengers.Add(newPassenger);
        }

        public void UpdatePassenger(Passenger passenger)
        {
            var existingPassenger = _passengers.FirstOrDefault(p => p.Id == passenger.Id);
            if (existingPassenger != null)
            {
                var updatedPassenger = Passenger.CreateEntity(existingPassenger.Id, passenger.FirstName, passenger.LastName, passenger.PassportNumber);
                _passengers.Remove(existingPassenger);
                _passengers.Add(updatedPassenger);
            }
        }

        public void DeletePassenger(int id)
        {
            var passengerToRemove = _passengers.FirstOrDefault(p => p.Id == id);
            if (passengerToRemove != null)
            {
                _passengers.Remove(passengerToRemove);
            }
        }
    }
}