using Qrakhen.Qamp.Core.Collections;

namespace Qrakhen.Qamp.Core.Values.Objects;

using T = ValueType;

/// <summary>
///     Wrapper to access values that are spread around the stack inside contexts
/// </summary>
public class Outer(Pointer<Value> target) : Obj(T.Outer)
{
    private Value _stored = Value.Void;
    public Pointer<Value> Target = target;

    public bool IsClosed { get; private set; }

    /// <summary>
    ///     Dynamic getter & setter that returns or writes to either the target value directly,
    ///     or the stored value if this <see cref="Outer"/> has been closed.
    /// </summary>
    public Value Value 
    {
        get => IsClosed ? _stored : Target!.Get();
        set {
            if (IsClosed)
                _stored = value;
            else
                Target.Set(value);
        }
    }

    public Value Close()
    {
        if (IsClosed)
            throw new Exception($"meh, something not right here (cant close already closed outer)");
        _stored = Target!.Get();
        IsClosed = true;
        return _stored;
    }
}