// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
 
using System;
using System.Runtime.Serialization;
using System.Xml.Linq;
using Roslyn.Utilities;
 
namespace Microsoft.CodeAnalysis.Diagnostics.Analyzers.NamingStyles;
 
[DataContract]
internal sealed record class SerializableNamingRule
{
    [DataMember(Order = 0)]
    public Guid SymbolSpecificationID { get; init; }
 
    [DataMember(Order = 1)]
    public Guid NamingStyleID { get; init; }
 
    [DataMember(Order = 2)]
    public ReportDiagnostic EnforcementLevel { get; init; }
 
    public NamingRule GetRule(NamingStylePreferences info)
    {
        return new NamingRule(
            info.GetSymbolSpecification(SymbolSpecificationID),
            info.GetNamingStyle(NamingStyleID),
            EnforcementLevel);
    }
 
    internal XElement CreateXElement()
    {
        var element = new XElement(nameof(SerializableNamingRule),
            new XAttribute(nameof(SymbolSpecificationID), SymbolSpecificationID),
            new XAttribute(nameof(NamingStyleID), NamingStyleID),
            new XAttribute(nameof(EnforcementLevel), EnforcementLevel.ToDiagnosticSeverity() ?? DiagnosticSeverity.Hidden));
 
        return element;
    }
 
    internal static SerializableNamingRule FromXElement(XElement namingRuleElement)
    {
        return new SerializableNamingRule()
        {
            EnforcementLevel = ((DiagnosticSeverity)Enum.Parse(typeof(DiagnosticSeverity), namingRuleElement.Attribute(nameof(EnforcementLevel))!.Value)).ToReportDiagnostic(),
            NamingStyleID = Guid.Parse(namingRuleElement.Attribute(nameof(NamingStyleID))!.Value),
            SymbolSpecificationID = Guid.Parse(namingRuleElement.Attribute(nameof(SymbolSpecificationID))!.Value)
        };
    }
 
    public void WriteTo(ObjectWriter writer)
    {
        writer.WriteGuid(SymbolSpecificationID);
        writer.WriteGuid(NamingStyleID);
        writer.WriteInt32((int)(EnforcementLevel.ToDiagnosticSeverity() ?? DiagnosticSeverity.Hidden));
    }
 
    public static SerializableNamingRule ReadFrom(ObjectReader reader)
    {
        return new SerializableNamingRule
        {
            SymbolSpecificationID = reader.ReadGuid(),
            NamingStyleID = reader.ReadGuid(),
            EnforcementLevel = ((DiagnosticSeverity)reader.ReadInt32()).ToReportDiagnostic(),
        };
    }
}