namespace NATS.Server.JetStream.Models;

public sealed class StreamConfig
{
    public string Name { get; set; } = string.Empty;
    public List<string> Subjects { get; set; } = [];
    public int MaxMsgs { get; set; }
    public long MaxBytes { get; set; }
    public int MaxMsgsPer { get; set; }
    public int MaxAgeMs { get; set; }
    public int MaxMsgSize { get; set; }
    public int MaxConsumers { get; set; }
    public int DuplicateWindowMs { get; set; }
    public bool Sealed { get; set; }
    public bool DenyDelete { get; set; }
    public bool DenyPurge { get; set; }
    public bool AllowDirect { get; set; }
    public RetentionPolicy Retention { get; set; } = RetentionPolicy.Limits;
    public DiscardPolicy Discard { get; set; } = DiscardPolicy.Old;
    public StorageType Storage { get; set; } = StorageType.Memory;
    public int Replicas { get; set; } = 1;
    public string? Mirror { get; set; }
    public string? Source { get; set; }
    public List<StreamSourceConfig> Sources { get; set; } = [];
}

public enum StorageType
{
    Memory,
    File,
}

public sealed class StreamSourceConfig
{
    public string Name { get; set; } = string.Empty;
    public string? SubjectTransformPrefix { get; set; }
    public string? SourceAccount { get; set; }

    // Go: StreamSource.FilterSubject — only forward messages matching this subject filter.
    public string? FilterSubject { get; set; }

    // Deduplication window in milliseconds for Nats-Msg-Id header-based dedup.
    // Defaults to 0 (disabled). When > 0, duplicate messages with the same Nats-Msg-Id
    // within this window are silently dropped.
    public int DuplicateWindowMs { get; set; }
}