using Prefab.Domain.Common;

namespace Prefab.Data.Entities;

/// <summary>
/// Represents an audit log entry that captures an entity state transition.
/// </summary>
public class AuditLog : Entity<int>, ICreated
{
    /// <summary>
    /// Gets or sets the correlation identifier tying related audit events together.
    /// </summary>
    public Guid CorrelationId { get; set; }

    /// <summary>
    /// Gets or sets the fully qualified entity name that generated the audit record.
    /// </summary>
    public string Entity { get; set; } = string.Empty;

    /// <summary>
    /// Gets or sets the serialized state of the entity when the audit was captured.
    /// </summary>
    public string State { get; set; } = string.Empty;

    /// <summary>
    /// Gets or sets the collection of field-level changes associated with the audit.
    /// </summary>
    public virtual ICollection<AuditLogItem> Items { get; set; } = new List<AuditLogItem>();

    /// <summary>
    /// Gets or sets the identifier of the user who triggered the change.
    /// </summary>
    public Guid CreatedBy { get; set; }

    /// <summary>
    /// Gets or sets the timestamp when the change occurred.
    /// </summary>
    public DateTimeOffset CreatedOn { get; set; }
}