using EventSubscriber.Application;

namespace Acceptance.Support;

/// <summary>In-memory stand-ins for the Event Subscriber's projection store and notification
/// log, so the S-06 acceptance scenario runs without Postgres (real delivery is a live-stack
/// check). Mirrors the <c>InMemoryZaakGateway</c> approach used for the ACL scenario.</summary>
public sealed class InMemoryNotificationLog : INotificationLog
{
    private readonly Dictionary<string, RecordedNotification> _byKey = [];

    public Task<bool> TryRecordAsync(RecordedNotification notification, CancellationToken ct = default)
        => Task.FromResult(_byKey.TryAdd(notification.Key, notification));

    public Task<IReadOnlyList<RecordedNotification>> AllAsync(CancellationToken ct = default)
        => Task.FromResult<IReadOnlyList<RecordedNotification>>([.. _byKey.Values]);
}

public sealed class InMemoryProjectionStore : IProjectionStore
{
    private readonly Dictionary<string, RegisterEntry> _byId = [];

    public Task UpsertAsync(RegisterEntry entry, CancellationToken ct = default)
    {
        _byId[entry.Id] = entry;
        return Task.CompletedTask;
    }

    public Task ClearAsync(CancellationToken ct = default)
    {
        _byId.Clear();
        return Task.CompletedTask;
    }

    public Task<IReadOnlyList<RegisterEntry>> AllAsync(CancellationToken ct = default)
        => Task.FromResult<IReadOnlyList<RegisterEntry>>([.. _byId.Values]);

    public IReadOnlyList<RegisterEntry> RowsFor(string id)
        => [.. _byId.Values.Where(e => e.Id == id)];
}

/// <summary>A fake ACL client for the projection acceptance scenario: returns a reference derived
/// from the zaak, so the projector can enrich rows without a running ACL (#78).</summary>
public sealed class InMemoryAclReferenceClient : IAclClient
{
    public Task<string> GetZaakReferenceAsync(Uri zaakUrl, CancellationToken ct = default)
        => Task.FromResult("REG-" + zaakUrl.Segments[^1].Trim('/'));
}