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Customer.cs
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Customer.cs
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using System;
using System.Collections.Generic;
using SuperSafeBank.Common.Models;
using SuperSafeBank.Domain.DomainEvents;
namespace SuperSafeBank.Domain
{
public record Customer : BaseAggregateRoot<Customer, Guid>
{
private readonly HashSet<Guid> _accounts = new();
private Customer() { }
public Customer(Guid id, string firstname, string lastname, Email email) : base(id)
{
if(string.IsNullOrWhiteSpace(firstname))
throw new ArgumentNullException(nameof(firstname));
if (string.IsNullOrWhiteSpace(lastname))
throw new ArgumentNullException(nameof(lastname));
if (email is null)
throw new ArgumentNullException(nameof(email));
this.Append(new CustomerEvents.CustomerCreated(this, firstname, lastname, email));
}
public void AddAccount(Account account)
{
if (account is null)
throw new ArgumentNullException(nameof(account));
if (_accounts.Contains(account.Id))
return;
this.Append(new CustomerEvents.AccountAdded(this, account.Id));
}
public string Firstname { get; private set; }
public string Lastname { get; private set; }
public Email Email { get; private set; }
public IReadOnlyCollection<Guid> Accounts => _accounts;
protected override void When(IDomainEvent<Guid> @event)
{
switch (@event)
{
case CustomerEvents.CustomerCreated c:
this.Id = c.AggregateId;
this.Firstname = c.Firstname;
this.Lastname = c.Lastname;
this.Email = c.Email;
break;
case CustomerEvents.AccountAdded aa:
_accounts.Add(aa.AccountId);
break;
}
}
public static Customer Create(Guid customerId, string firstName, string lastName, string email)
{
return new Customer(customerId, firstName, lastName, new Email(email));
}
}
}