namespace Qrakhen.Qamp.Core.Values.Objects;

public class List(IEnumerable<Value> data) : ItemProvider<int>(ValueType.List)
{
   public List<Value> Data = [..data];

   public void Add(Value value)
   {
      Data.Add(value);
   }

   public void Remove(Value index)
   {
      int _index = ExtractIndex(index);
      AssertValidAccesor(_index);
      Data.RemoveAt(_index);
   }

   protected override void InnerSet(int index, Value value)
   {
      Data[index] = value;
   }

   protected override Value InnerGet(int index)
   {
      return Data[index];
   }

   protected override void AssertValidAccesor(int index)
   {
      if (index < 0 || index > Data.Count)
         throw new ItemProviderException($"Can not index '{index}' of list, as the index is outside its boundaries.", this);
   }

   protected override int ExtractIndex(Value value)
   {
      int index;
      if (value.IsSigned)
         index = (int)value.Signed;
      else if (value.IsUnsigned)
         index = (int)value.Unsigned;
      else
         throw new ItemProviderException($"Can not use {value} as an accessor, as it is not an integer.", this);

      return index;
   }

   public override string ToString() => ToString(true);
   public string ToString(bool detail) => detail ? $":[{string.Join(", ", Data)}]" : $"List[{Data.Count}]";
}