public enum SimulationRunStatus { Pending, Running, Completed, Cancelled, Failed }

public static class SimulationRunStatusExtensions
{
    public static string ToDbString(this SimulationRunStatus s) => s switch
    {
        SimulationRunStatus.Pending   => "PENDING",
        SimulationRunStatus.Running   => "RUNNING",
        SimulationRunStatus.Completed => "COMPLETED",
        SimulationRunStatus.Cancelled => "CANCELLED",
        SimulationRunStatus.Failed    => "FAILED",
        _ => throw new ArgumentOutOfRangeException(nameof(s))
    };

    public static SimulationRunStatus FromDbString(string v) => v switch
    {
        "PENDING"   => SimulationRunStatus.Pending,
        "RUNNING"   => SimulationRunStatus.Running,
        "COMPLETED" => SimulationRunStatus.Completed,
        "CANCELLED" => SimulationRunStatus.Cancelled,
        "FAILED"    => SimulationRunStatus.Failed,
        _ => throw new ArgumentOutOfRangeException(nameof(v), $"Unknown simulation run status: '{v}'")
    };
}