/// <summary>
/// Creates a new service provider.
/// </summary>
/// <param name="handler">A callback object used when the the user needs to be asked questions or informed about download and IO tasks.</param>
public ServiceProvider(ITaskHandler handler)
{
Handler = handler ?? throw new ArgumentNullException(nameof(handler));
_feedCache = new(() => FeedCaches.Default(OpenPgp));
_trustManager = new(() => new(TrustDB.LoadSafe(), Config, OpenPgp, FeedCache, Handler));
_feedManager = new(() => new(Config, FeedCache, TrustManager, Handler));
_catalogManager = new(() => new(TrustManager, Handler));
_selectionCandidateProvider = new(() => new(Config, FeedManager, ImplementationStore, PackageManager));
_solver = new(() =>
{
var backtrackingSolver = new BacktrackingSolver(SelectionCandidateProvider);
if (Config.ExternalSolverUri == null)
{
return(backtrackingSolver);
}
else
{
var externalSolver = new ExternalSolver(backtrackingSolver, SelectionsManager, Fetcher, Executor, FeedManager, Handler, Config.ExternalSolverUri);
return(new FallbackSolver(backtrackingSolver, externalSolver));
}
});
_fetcher = new(() => new(Config, ImplementationStore, Handler));
_executor = new(() => new(ImplementationStore));
_selectionsManager = new(() => new(FeedManager, ImplementationStore, PackageManager));
}
/// <summary>
/// Attempts to Solve game board using provided algorithm
/// </summary>
/// <returns></returns>
public bool Solve(out string solutionWord, out string pathWord)
{
BacktrackingSolver solver = new BacktrackingSolver(boardDefinition);
if (PlayerPositionChanged != null)
{
solver.PlayerPositionChanged += Solver_PlayerPositionChanged;
}
Point startPos = boardDefinition.PlayerStartPosition;
var solution = solver.FindSolution(
startPos.X,
startPos.Y,
boardDefinition.BoardWordSolution,
boardDefinition.BoardSolution);
bool solutionFound = solution.SolutionFound;
solutionWord = solution.SolutionWord;
pathWord = solution.PathWord;
return(solutionFound);
}