using Shouldly;
using Xunit;
using ZB.MOM.WW.OtOpcUa.Host.Domain;

namespace ZB.MOM.WW.OtOpcUa.Tests.Domain
{
    public class SecurityClassificationMapperTests
    {
        /// <summary>
        ///     Verifies that Galaxy classifications intended for operator and engineering writes remain writable through OPC UA.
        /// </summary>
        /// <param name="classification">The Galaxy security classification value being evaluated for write access.</param>
        /// <param name="expected">The expected writable result for the supplied Galaxy classification.</param>
        [Theory]
        [InlineData(0, true)] // FreeAccess
        [InlineData(1, true)] // Operate
        [InlineData(4, true)] // Tune
        [InlineData(5, true)] // Configure
        public void Writable_SecurityLevels(int classification, bool expected)
        {
            SecurityClassificationMapper.IsWritable(classification).ShouldBe(expected);
        }

        /// <summary>
        ///     Verifies that secured or view-only Galaxy classifications are exposed as read-only attributes.
        /// </summary>
        /// <param name="classification">The Galaxy security classification value expected to block writes.</param>
        /// <param name="expected">The expected writable result for the supplied read-only Galaxy classification.</param>
        [Theory]
        [InlineData(2, false)] // SecuredWrite
        [InlineData(3, false)] // VerifiedWrite
        [InlineData(6, false)] // ViewOnly
        public void ReadOnly_SecurityLevels(int classification, bool expected)
        {
            SecurityClassificationMapper.IsWritable(classification).ShouldBe(expected);
        }

        /// <summary>
        ///     Verifies that unknown security classifications do not accidentally block writes for unmapped Galaxy values.
        /// </summary>
        /// <param name="classification">
        ///     An unmapped Galaxy security classification value that should fall back to writable
        ///     behavior.
        /// </param>
        [Theory]
        [InlineData(-1)]
        [InlineData(7)]
        [InlineData(99)]
        public void Unknown_Values_DefaultToWritable(int classification)
        {
            SecurityClassificationMapper.IsWritable(classification).ShouldBeTrue();
        }
    }
}