async Task MoveItem(IConn conn, MoveItemRequest moveItemRequest)
{
var wasFrom = _store.GetItemQuantity(moveItemRequest.FromItemID);
var wasTo = _store.GetItemQuantity(moveItemRequest.ToItemID);
if (wasFrom < moveItemRequest.Amount)
{
await conn.Write(new ArgumentException("Insufficient amount"));
return;
}
await Commit(
new ItemAdded(moveItemRequest.ToItemID, moveItemRequest.Amount, wasTo + moveItemRequest.Amount),
new ItemRemoved(moveItemRequest.FromItemID, moveItemRequest.Amount, wasFrom - moveItemRequest.Amount));
await conn.Write(new MoveItemResponse());
}
public async Task MoveItem(long from, long to, decimal amount)
{
var req = new MoveItemRequest(from, to, amount);
await Unary <MoveItemRequest, MoveItemResponse>(req);
}
