/// <summary>
/// Builds an <see cref="GetAvailabilityOp"/>.
/// </summary>
/// <param name="cellLocator">The cell locator.</param>
/// <returns>
/// The operation.
/// </returns>
public static GetAvailabilityOp GetAvailability(
this CellLocatorBase cellLocator)
{
var result = new GetAvailabilityOp(Op.Const(cellLocator));
return(result);
}
/// <inheritdoc />
public async Task <Availability> ExecuteAsync(
GetAvailabilityOp operation)
{
// NOTE: THIS CODE IS A NEAR DUPLICATE OF THE SYNC METHOD ABOVE; NO GOOD WAY TO D.R.Y. IT OUT
if (operation == null)
{
throw new ArgumentNullException(nameof(operation));
}
var recalcPhase = this.getRecalcPhaseFunc();
if (recalcPhase != RecalcPhase.AvailabilityCheck)
{
throw new InvalidOperationException(Invariant($"Cannot execute {nameof(GetAvailabilityOp)} during the {recalcPhase} phase."));
}
var cell = await this.GetCellAndCheckAvailabilityIfNecessaryAsync(operation.CellLocator);
var result = cell.GetAvailability();
return(result);
}
