Added grpc api, perm system

grpc api config in creds

src/EllieBot.Generators/EllieBot.Generators.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.0.1" PrivateAssets="all" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.4.0" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.3" PrivateAssets="all" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" PrivateAssets="all" GeneratePathProperty="true" />
   </ItemGroup>

src/EllieBot.Generators/GrpcApiPermGenerator.cs

@@ -0,0 +1,148 @@
+#nullable enable
+using System.CodeDom.Compiler;
+using System.Collections.Immutable;
+using System.Diagnostics;
+using System.Text;
+using System.Text.RegularExpressions;
+using Microsoft.CodeAnalysis;
+using Microsoft.CodeAnalysis.CSharp.Syntax;
+using Microsoft.CodeAnalysis.Text;
+using Newtonsoft.Json;
+
+namespace EllieBot.Generators
+{
+    public readonly record struct MethodPermData
+    {
+        public readonly string Name;
+        public readonly string Value;
+
+        public MethodPermData(string name, string value)
+        {
+            Name = name;
+            Value = value;
+        }
+    }
+
+
+    [Generator]
+    public class GrpcApiPermGenerator : IIncrementalGenerator
+    {
+        public const string Attribute =
+            """
+            namespace EllieBot.GrpcApi;
+
+            [System.AttributeUsage(System.AttributeTargets.Method)]
+            public class GrpcApiPermAttribute : System.Attribute
+            {
+                public GuildPerm Value { get; }
+                public GrpcApiPermAttribute(GuildPerm value) => Value = value;
+            }
+            """;
+
+        public void Initialize(IncrementalGeneratorInitializationContext context)
+        {
+            context.RegisterPostInitializationOutput(ctx => ctx.AddSource("GrpcApiPermAttribute.cs",
+                SourceText.From(Attribute, Encoding.UTF8)));
+
+            var enumsToGenerate = context.SyntaxProvider
+                .ForAttributeWithMetadataName(
+                    "EllieBot.GrpcApi.GrpcApiPermAttribute",
+                    predicate: static (s, _) => s is MethodDeclarationSyntax,
+                    transform: static (ctx, _) => GetMethodSemanticTargets(ctx.SemanticModel, ctx.TargetNode))
+                .Where(static m => m is not null)
+                .Select(static (x, _) => x.Value)
+                .Collect();
+
+            context.RegisterSourceOutput(enumsToGenerate,
+                static (spc, source) => Execute(source, spc));
+        }
+
+        private static MethodPermData? GetMethodSemanticTargets(SemanticModel model, SyntaxNode node)
+        {
+            var method = (MethodDeclarationSyntax)node;
+
+            var name = method.Identifier.Text;
+            var attr = method.AttributeLists
+                .SelectMany(x => x.Attributes)
+                .FirstOrDefault();
+            // .FirstOrDefault(x => x.Name.ToString() == "GrpcApiPermAttribute");
+
+
+            if (attr is null)
+                return null;
+
+            // if (model.GetSymbolInfo(attr).Symbol is not IMethodSymbol attrSymbol)
+            //     return null;
+
+            return new MethodPermData(name, attr.ArgumentList.Arguments[0].ToString());
+            // return new MethodPermData(name, attrSymbol.Parameters[0].ContainingType.ToDisplayString() + "." + attrSymbol.Parameters[0].Name);
+        }
+
+        private static void Execute(ImmutableArray<MethodPermData> fields, SourceProductionContext ctx)
+        {
+            using (var stringWriter = new StringWriter())
+            using (var sw = new IndentedTextWriter(stringWriter))
+            {
+                sw.WriteLine("using System.Collections.Frozen;");
+                sw.WriteLine();
+                sw.WriteLine("namespace EllieBot.GrpcApi;");
+                sw.WriteLine();
+
+                sw.WriteLine("public partial class PermsInterceptor");
+                sw.WriteLine("{");
+
+                sw.Indent++;
+
+                sw.WriteLine("public static FrozenDictionary<string, GuildPerm> perms = new Dictionary<string, GuildPerm>()");
+                sw.WriteLine("{");
+
+                sw.Indent++;
+                foreach (var field in fields)
+                {
+                    sw.WriteLine("{{ \"{0}\", {1} }},", field!.Name, field!.Value);
+                }
+
+                sw.Indent--;
+                sw.WriteLine("}.ToFrozenDictionary();");
+
+                sw.Indent--;
+                sw.WriteLine("}");
+
+                sw.Flush();
+                ctx.AddSource("GrpcApiInterceptor.g.cs", stringWriter.ToString());
+            }
+        }
+
+        private List<TranslationPair> GetFields(string? dataText)
+        {
+            if (string.IsNullOrWhiteSpace(dataText))
+                return new();
+
+            Dictionary<string, string> data;
+            try
+            {
+                var output = JsonConvert.DeserializeObject<Dictionary<string, string>>(dataText!);
+                if (output is null)
+                    return new();
+
+                data = output;
+            }
+            catch
+            {
+                Debug.WriteLine("Failed parsing responses file.");
+                return new();
+            }
+
+            var list = new List<TranslationPair>();
+            foreach (var entry in data)
+            {
+                list.Add(new(
+                    entry.Key,
+                    entry.Value
+                ));
+            }
+
+            return list;
+        }
+    }
+}