/// <summary>
/// Filter a list of systems with parameters
/// </summary>
/// <param name="systems">List of systems to filter through</param>
/// <param name="result">New list with only the filtered systems</param>
/// <param name="filter">Filter settings</param>
/// <returns>True, if atleast one system matching the filters was found</returns>
public static bool Filter(this IEnumerable <StarSystem> systems, SystemSearchFilter filter, out List <StarSystem> result)
{
if (filter.PermitName != null)
{
filter.PermitLocked = true;
}
result = new List <StarSystem>(systems);
List <StarSystem> remove = new List <StarSystem>();
if (filter.TraderType != null)
{
remove.AddRange(result.Where(system => system.MaterialTraderType != filter.TraderType));
result.RemoveClear(remove);
}
if (filter.PermitLocked != null)
{
remove.AddRange(result.Where(system => system.IsPermitLocked != filter.PermitLocked.Value));
result.RemoveClear(remove);
}
if (filter.PermitName != null)
{
remove.AddRange(result.Where(system => system.PermitName != filter.PermitName));
result.RemoveClear(remove);
}
if (filter.Security != null)
{
remove.AddRange(result.Where(system => system.Security != filter.Security.Value));
result.RemoveClear(remove);
}
return(result.Count > 0);
}
/// <summary>
/// Filters stations in a list of systems
/// </summary>
/// <param name="systems">Enumerable to filter through</param>
/// <param name="systemFilter">system filter to apply</param>
/// <param name="stationFilter">station filter to apply</param>
/// <param name="result">a resulting new List with all stations</param>
/// <returns></returns>
public static bool FilterStations(this IEnumerable <StarSystem> systems, SystemSearchFilter systemFilter, StationSearchFilter stationFilter, out List <Station> result)
{
result = new List <Station>();
if (systems.Filter(systemFilter, out var validSystems))
{
foreach (StarSystem system in validSystems)
{
if (system.FilterStations(stationFilter, out List <Station> stations))
{
result.AddRange(stations);
}
}
return(result.Count > 0);
}
else
{
return(false);
}
}
