using System;
using Aitex.Core.RT.DataCenter;

namespace Aitex.Core.RT.IOCore.Interlock.DataProvider;

public class BoolDataPollProvider : DataPollProviderBase<bool>, IInterlockLimitDataProvider
{
    public BoolDataPollProvider(string dataPath) : base(dataPath)
    {
    }

    /// <summary>
    /// <inheritdoc cref="DataPollProviderBase{T}.HandleGetValue"/>
    /// </summary>
    /// <returns></returns>
    /// <exception cref="NullReferenceException"></exception>
    /// <exception cref="InvalidCastException"></exception>
    protected override object HandleGetValue()
    {
        var value = DATA.Poll(DataPath);
        if (value == null)
            throw new NullReferenceException("null is returned.");

        if (bool.TryParse(value.ToString(), out var bValue))
            return bValue;

        throw new InvalidCastException($"the return value {value} is not bool.");

    }
}