namespace StellaOps.Policy.Determinization.Models;

/// <summary>
/// Query status for a signal.
/// Distinguishes between "not yet queried", "queried with result", and "query failed".
/// </summary>
public enum SignalQueryStatus
{
    /// <summary>
    /// Signal has not been queried yet.
    /// Default state before any lookup attempt.
    /// </summary>
    NotQueried = 0,

    /// <summary>
    /// Signal query succeeded.
    /// Value may be present or null (signal legitimately absent).
    /// </summary>
    Queried = 1,

    /// <summary>
    /// Signal query failed due to error (network, API timeout, etc.).
    /// Value is null but reason is external failure, not absence.
    /// </summary>
    Failed = 2
}