using IM.Domain.Common;

namespace BuildFlow.IM.Integration.Tests;

/// <summary>
/// 进程内 <see cref="IImNotificationPublisher"/> 替身：记录离线触达调用，供断言"仅离线用户收到站内信"。
/// 真实实现走 gRPC 到 rag-backend 通知中心，测试环境不依赖该服务。
/// </summary>
public sealed class FakeImNotificationPublisher : IImNotificationPublisher
{
    public sealed record Call(string Type, string Title, string Content, Guid ConversationId, IReadOnlyList<Guid> Recipients);

    public List<Call> Calls { get; } = new();

    public Task<int> PublishAsync(
        string type,
        string title,
        string content,
        Guid conversationId,
        IEnumerable<Guid> recipientUserIds,
        CancellationToken ct = default)
    {
        var list = recipientUserIds.ToList();
        lock (Calls)
        {
            Calls.Add(new Call(type, title, content, conversationId, list));
        }
        return Task.FromResult(list.Count);
    }

    public void Reset() { lock (Calls) Calls.Clear(); }
}