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

namespace ZB.MOM.WW.LmxOpcUa.Tests.Domain
{
    /// <summary>
    /// Verifies the operator-facing error messages and quality mappings derived from MXAccess error codes.
    /// </summary>
    public class MxErrorCodesTests
    {
        /// <summary>
        /// Confirms that known MXAccess error codes produce readable operator-facing descriptions.
        /// </summary>
        /// <param name="code">The MXAccess error code.</param>
        /// <param name="expectedSubstring">A substring expected in the returned description.</param>
        [Theory]
        [InlineData(1008, "Invalid reference")]
        [InlineData(1012, "Wrong data type")]
        [InlineData(1013, "Not writable")]
        [InlineData(1014, "Request timed out")]
        [InlineData(1015, "Communication failure")]
        [InlineData(1016, "Not connected")]
        public void GetMessage_KnownCodes_ContainsDescription(int code, string expectedSubstring)
        {
            MxErrorCodes.GetMessage(code).ShouldContain(expectedSubstring);
        }

        /// <summary>
        /// Confirms that unknown MXAccess error codes are reported as unknown while preserving the numeric code.
        /// </summary>
        [Fact]
        public void GetMessage_UnknownCode_ReturnsUnknown()
        {
            MxErrorCodes.GetMessage(9999).ShouldContain("Unknown");
            MxErrorCodes.GetMessage(9999).ShouldContain("9999");
        }

        /// <summary>
        /// Confirms that known MXAccess error codes map to the expected bridge quality values.
        /// </summary>
        /// <param name="code">The MXAccess error code.</param>
        /// <param name="expected">The expected bridge quality value.</param>
        [Theory]
        [InlineData(1008, Quality.BadConfigError)]
        [InlineData(1012, Quality.BadConfigError)]
        [InlineData(1013, Quality.BadOutOfService)]
        [InlineData(1014, Quality.BadCommFailure)]
        [InlineData(1015, Quality.BadCommFailure)]
        [InlineData(1016, Quality.BadNotConnected)]
        public void MapToQuality_KnownCodes(int code, Quality expected)
        {
            MxErrorCodes.MapToQuality(code).ShouldBe(expected);
        }

        /// <summary>
        /// Confirms that unknown MXAccess error codes map to the generic bad quality bucket.
        /// </summary>
        [Fact]
        public void MapToQuality_UnknownCode_ReturnsBad()
        {
            MxErrorCodes.MapToQuality(9999).ShouldBe(Quality.Bad);
        }
    }
}