source: branches/3026_IntegrationIntoSymSpace/HeuristicLab.JsonInterface/JsonItems/ConcreteRestrictedArrayJsonItem.cs @ 18055

using System.Collections.Generic;
using System.Linq;
using HEAL.Attic;

namespace HeuristicLab.JsonInterface {
  [StorableType("4333B6C0-26F7-41BA-A297-071AB50307F9")]
  public abstract class ConcreteRestrictedArrayJsonItem<T> : ArrayJsonItem<T>, IConcreteRestrictedJsonItem<T> {
    public IEnumerable<T> ConcreteRestrictedItems { get; set; }

    protected override ValidationResult Validate() {
      bool res = true;
      IList<string> errors = new List<string>();
      if (ConcreteRestrictedItems == null) return ValidationResult.Successful();
      foreach (var x in Value) {
        bool tmp = false;
        foreach (var restrictedItem in ConcreteRestrictedItems) {
          tmp = tmp || x.Equals(restrictedItem); //if one tmp is true, it stays true (match found)
        }
        if (!tmp)
          errors.Add($"[{Path}]: Value '{x}' is not one of the allowed values: " +
                     $"'{ string.Join(",", ConcreteRestrictedItems.Select(s => s.ToString()).ToArray()) }'.");
        res = res && tmp; //if one tmp is false, res will set false
      }
      if (res)
        return ValidationResult.Successful();
      else
        return ValidationResult.Faulty(errors);
    }

    public ConcreteRestrictedArrayJsonItem() { }

    [StorableConstructor]
    protected ConcreteRestrictedArrayJsonItem(StorableConstructorFlag _) : base(_) { }
  }
}