using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;

namespace GB5Shared.Archive
{
    /// <summary>
    /// Optional interface for indexing audit events into Elasticsearch.
    /// Implement when the platform needs full-text search across event data.
    /// Not implemented in this release — register a no-op if needed.
    ///
    /// Typical integration point: called from EventLogSubBLL after TEVENTLOG write.
    /// </summary>
    public interface IElasticAuditIndexer
    {
        /// <summary>Index a single audit event (e.g. after real-time write).</summary>
        Task IndexAsync(AuditIndexDocument document, CancellationToken ct = default);

        /// <summary>Bulk-index a batch (e.g. after archive read-back for initial ingest).</summary>
        Task BulkIndexAsync(IEnumerable<AuditIndexDocument> documents, CancellationToken ct = default);
    }

    /// <summary>Minimal document shape for Elasticsearch indexing.</summary>
    public sealed class AuditIndexDocument
    {
        public int     EventLogId   { get; set; }
        public int     EventTypeId  { get; set; }
        public int     UserId       { get; set; }
        public int     TenantId     { get; set; }
        public string? EventText    { get; set; }
        public string? Data         { get; set; }
        public string? Timestamp    { get; set; }   // ISO 8601
    }
}