public string WriteSolution(Solution solution)
{
var costSolver = new CostSolver();
StringBuilder sb = new StringBuilder();
sb.AppendLine("Solution:");
foreach (var slot in solution.Problem.Slots)
{
var mappings = solution.Mappings.Where(m => m.Slot == slot);
sb.Append(String.Format("'{0}' -> ", slot.Identifier));
if (mappings.Count() == 1)
{
sb.AppendLine(String.Format("'{0}'", mappings.First().Resource.Identifier));
}
else
{
sb.AppendLine("Invalid");
}
}
foreach (var resource in solution.Problem.Resources)
{
var mappings = solution.Mappings.Where(m => m.Resource == resource);
var cost = costSolver.CalculateResourceCost(solution, resource);
sb.AppendLine(String.Format("Resource '{0}' -> {1} mappings, {2} cost", resource.Identifier, mappings.Count(), cost));
}
return(sb.ToString());
}
public Solution Solve()
{
var costSolver = new CostSolver();
var solutionWriter = new SolutionWriter();
var csvWriter = new CsvWriter();
var csvFile = new FileInfo("solution.csv");
double minCost = 0;
Solution bestSolution = null;
while (true)
{
var solution = this.CreateRandomSolution();
var solutionCost = costSolver.CalculateCost(solution);
if (bestSolution == null || solutionCost < minCost)
{
minCost = solutionCost;
bestSolution = solution;
Console.WriteLine("new min cost: " + minCost);
Console.WriteLine(solutionWriter.WriteSolution(bestSolution));
File.WriteAllText(csvFile.FullName, csvWriter.WriteSolution(bestSolution));
}
}
return(null);
}
public string WriteSolution(Solution solution)
{
var costSolver = new CostSolver();
StringBuilder sb = new StringBuilder();
sb.AppendLine("KW,Datum,Montag,Dienstag,Mittwoch,Donnerstag,Freitag");
foreach (var group in solution.Problem.Groups)
{
Mapping[] groupMappings = new Mapping[5];
foreach (var slot in group.Slots)
{
var mapping = solution.Mappings.Single(m => m.Slot == slot);
var slotDate = DateTime.Parse(slot.Identifier);
int slotIndex = (int)slotDate.DayOfWeek - 1;
if (slotIndex < 0 || slotIndex > 4)
{
throw new Exception("xxx");
}
groupMappings[slotIndex] = mapping;
}
var values = new List <string>();
values.Add(group.Identifier);
var minDate = groupMappings.Where(m => m != null).Min(m => DateTime.Parse(m.Slot.Identifier));
var maxDate = groupMappings.Where(m => m != null).Max(m => DateTime.Parse(m.Slot.Identifier));
values.Add($"{minDate.ToString("dd.MM.yyyy")}-{maxDate.ToString("dd.MM.yyyy")}");
for (int i = 0; i < 5; i++)
{
if (groupMappings[i] != null)
{
values.Add(groupMappings[i].Resource.Identifier);
}
else
{
values.Add("-");
}
}
sb.AppendLine(String.Join(",", values));
}
//sb.AppendLine("Solution:");
//foreach (var slot in solution.Problem.Slots)
//{
// var mappings = solution.Mappings.Where(m => m.Slot == slot);
// sb.Append(String.Format("'{0}' -> ", slot.Identifier));
// if (mappings.Count() == 1)
// {
// sb.AppendLine(String.Format("'{0}'", mappings.First().Resource.Identifier));
// }
// else
// {
// sb.AppendLine("Invalid");
// }
//}
//foreach (var resource in solution.Problem.Resources)
//{
// var mappings = solution.Mappings.Where(m => m.Resource == resource);
// var cost = costSolver.CalculateResourceCost(solution, resource);
// sb.AppendLine(String.Format("Resource '{0}' -> {1} mappings, {2} cost", resource.Identifier, mappings.Count(), cost));
//}
return(sb.ToString());
}
