using System.Runtime.CompilerServices;
using Jint.Runtime;

namespace Jint.Native;

public sealed class JsSymbol : JsValue, IEquatable<JsSymbol>
{
    internal readonly JsValue _value;

    internal JsSymbol(string value) : this(new JsString(value))
    {
    }

    internal JsSymbol(JsValue value) : base(Types.Symbol)
    {
        _value = value;
    }

    public override object ToObject() => _value;

    /// <summary>
    /// https://tc39.es/ecma262/#sec-symboldescriptivestring
    /// </summary>
    public override string ToString()
    {
        var value = _value.IsUndefined() ? "" : _value.AsString();
        return "Symbol(" + value + ")";
    }

    public override bool Equals(JsValue? obj)
    {
        return Equals(obj as JsSymbol);
    }

    public bool Equals(JsSymbol? other)
    {
        return ReferenceEquals(this, other);
    }

    public override int GetHashCode()
    {
        return RuntimeHelpers.GetHashCode(this);
    }
}