internal async Task RunImprovement(Algorithm algorithm, ToSolution solution, AlgorithmType typeToRestart)
{
Algorithm improvementAlgorithm = default;
switch (algorithm)
{
case HybridCustomUpdate hcu:
improvementAlgorithm = hcu;
hcu.StartingSolution = solution;
// hcu.CanContinueToRelaxConstraints = ??; TODO
break;
case HybridCustomInsertion hci:
improvementAlgorithm = hci;
hci.StartingSolution = solution;
break;
case LinKernighan lk:
improvementAlgorithm = lk;
lk.CurrentBestSolution = solution;
break;
}
await StartImprovementAlgorithm(improvementAlgorithm, typeToRestart);
}
internal override void OnTerminating()
{
base.OnTerminating();
Solver.BestSolution = CurrentBestSolution;
Console.ForegroundColor = ConsoleColor.Yellow;
SendMessage(MessageCode.LocalSearchImprovementsPerformed, ImprovementsCount);
SendMessage(MessageCode.LocalSearchStop,
CurrentBestSolution.Id, CurrentBestSolution.Cost);
Console.ForegroundColor = ConsoleColor.Gray;
SendMessage(ToSolution.SolutionCollectionToString(_solutionsHistory));
}
internal override void OnTerminating()
{
base.OnTerminating();
var validSolutions = SolutionsHistory.Where(solution => solution.IsValid);
if (validSolutions.Any())
{
Solver.BestSolution = validSolutions.MaxBy(solution => solution.Cost);
SendMessage(ToSolution.SolutionCollectionToString(SolutionsHistory));
return;
}
Solver.BestSolution = SolutionsHistory.MaxBy(solution => solution.Cost);
Console.ForegroundColor = ConsoleColor.Green;
SendMessage(MessageCode.GreedyNotFoundValidSolutions, Type);
Console.ForegroundColor = ConsoleColor.Gray;
}