public SuggestionsMade(ShowId showId, PartyRequested partyRequested)
{
ShowId = showId;
PartyRequested = partyRequested;
InstantiateAnEmptyListForEveryPricingCategory();
}
public SuggestionMade(PartyRequested partyRequested, PricingCategoryRequested pricingCategoryRequested,
List <Seat> seats)
{
PartyRequested = partyRequested;
PricingCategoryRequested = pricingCategoryRequested;
_suggestedSeats = seats;
}
public static IEnumerable <AdjacentSeats> SelectAdjacentSeats(this IEnumerable <Seat> seats,
PartyRequested partyRequested)
{
var adjacentSeatsGroups = new List <AdjacentSeats>();
var adjacentSeats = new List <Seat>();
var currentSeats = seats.ToList();
if (partyRequested.PartySize == 1)
{
return(currentSeats.Select(s => new AdjacentSeats(new List <Seat> {
s
})));
}
foreach (var candidateSeat in currentSeats.ToList())
{
if (!adjacentSeats.Any())
{
adjacentSeats.Add(candidateSeat);
continue;
}
adjacentSeats = adjacentSeats.OrderBy(s => s.Number).ToList();
if (candidateSeat.IsAdjacentWith(adjacentSeats))
{
adjacentSeats.Add(candidateSeat);
if (NoMoreSeats(adjacentSeats, currentSeats))
{
adjacentSeatsGroups.Add(new AdjacentSeats(ReduceAdjacentSeats(partyRequested, adjacentSeats)));
}
}
else
{
if (adjacentSeats.Any())
{
adjacentSeatsGroups.Add(ReduceAdjacentSeats(partyRequested, adjacentSeats));
}
adjacentSeats = new List <Seat> {
candidateSeat
};
}
}
return(adjacentSeatsGroups.Where(adjacent => adjacent.Count() >= partyRequested.PartySize));
}
public static Maybe <SuggestionsMade> TryMakeSuggestions(ShowId showId, PartyRequested partyRequested, AuditoriumSeating auditoriumSeating)
{
var suggestionsMade = new SuggestionsMade(showId, partyRequested);
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested, PricingCategory.First));
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested, PricingCategory.Second));
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested, PricingCategory.Third));
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested, PricingCategory.Mixed));
if (suggestionsMade.MatchExpectations())
{
return(new Maybe <SuggestionsMade>(suggestionsMade));
}
return(new Maybe <SuggestionsMade>());
}
public async Task <SuggestionsMade> MakeSuggestions(ShowId showId, PartyRequested partyRequested)
{
var auditoriumSeating = await _auditoriumSeatingAdapter.GetAuditoriumSeating(showId);
var suggestionsMade = new SuggestionsMade(showId, partyRequested);
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested,
PricingCategoryRequested.First));
suggestionsMade.Add(
GiveMeSuggestionsFor(auditoriumSeating, partyRequested, PricingCategoryRequested.Second));
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested,
PricingCategoryRequested.Third));
suggestionsMade.Add(GiveMeSuggestionsFor(auditoriumSeating, partyRequested,
PricingCategoryRequested.Mixed));
if (suggestionsMade.DoesMatchExpectations())
{
return(suggestionsMade);
}
return(new SuggestionNotAvailable(showId, partyRequested));
}
private static IEnumerable <SuggestionMade> GiveMeSuggestionsFor(
AuditoriumSeating auditoriumSeating,
PartyRequested partyRequested,
PricingCategoryRequested pricingCategoryRequested)
{
var foundedSuggestions = new List <SuggestionMade>();
for (var i = 0; i < NumberOfSuggestionsPerPricingCategory; i++)
{
var seatOptionsSuggested = auditoriumSeating
.SuggestSeatingOptionFor(new SuggestionRequest(partyRequested, pricingCategoryRequested));
if (seatOptionsSuggested.MatchExpectation())
{
// We get the new version of the Auditorium after the allocation
auditoriumSeating = auditoriumSeating.Allocate(seatOptionsSuggested);
foundedSuggestions.Add(new SuggestionMade(partyRequested, pricingCategoryRequested,
seatOptionsSuggested.Seats));
}
}
return(foundedSuggestions);
}
public SeatingOptionSuggested(SuggestionRequest suggestionRequest)
{
PartyRequested = suggestionRequest.PartyRequested;
PricingCategory = suggestionRequest.PricingCategory;
}
public SuggestionRequest(PartyRequested partyRequested, PricingCategory pricingCategory)
{
PartyRequested = partyRequested;
PricingCategory = pricingCategory;
}
private static bool DoesNotExceedPartyRequestedAndCandidateSeatIsAdjacent(Seat candidateSeat, List <Seat> adjacentSeats, PartyRequested partyRequested)
{
return(candidateSeat.IsAdjacentWith(adjacentSeats) && adjacentSeats.Count < partyRequested.PartySize);
}
public static IEnumerable <AdjacentSeats> SelectAdjacentSeats(this IEnumerable <Seat> seats, PartyRequested partyRequested)
{
var adjacentSeatsGroups = new List <AdjacentSeats>();
var adjacentSeats = new List <Seat>();
if (partyRequested.PartySize == 1)
{
return(seats.Select(s => new AdjacentSeats(new List <Seat> {
s
})));
}
foreach (var candidateSeat in seats.OrderBy(s => s.DistanceFromRowCentroid))
{
if (!adjacentSeats.Any())
{
adjacentSeats.Add(candidateSeat);
continue;
}
adjacentSeats = adjacentSeats.OrderBy(s => s.Number).ToList();
if (DoesNotExceedPartyRequestedAndCandidateSeatIsAdjacent(candidateSeat, adjacentSeats, partyRequested))
{
adjacentSeats.Add(candidateSeat);
}
else
{
if (adjacentSeats.Any())
{
adjacentSeatsGroups.Add(new AdjacentSeats(adjacentSeats));
}
adjacentSeats = new List <Seat> {
candidateSeat
};
}
}
return(adjacentSeatsGroups.Where(adjacent => adjacent.Count() == partyRequested.PartySize));
}
public async static Task <SuggestionsMade> MakeSuggestionsImperativeShell(Ports.IProvideUpToDateAuditoriumSeating auditoriumSeatingProvider, ShowId id, PartyRequested partyRequested)
{
// non-pure function
var auditoriumSeating = await auditoriumSeatingProvider.GetAuditoriumSeating(id);
// call pure function
return(SeatAllocator
.TryMakeSuggestions(id, partyRequested, auditoriumSeating)
.GetValueOrFallback(new SuggestionNotAvailable(id, partyRequested)));
// Balance restored:
// - inner hexagon knows about adapter capabilities but not implementation
// - orchestration is back in the 'core' where we can locally reason about it
// Notes:
// in this case the imperative shells can be easily distinguished by the 'async' keyword which kind of plays the role of the IO<> marker type.
}
private static AdjacentSeats ReduceAdjacentSeats(PartyRequested partyRequested, IEnumerable <Seat> adjacentSeats)
{
var orderedAdjacentSeats = adjacentSeats.OrderBy(s => s.DistanceFromRowCentroid).ToList();
return(new AdjacentSeats(orderedAdjacentSeats.Take(partyRequested.PartySize).OrderBy(s => s.Number)));
}
