dynamite: Support operation description and summary

packages/dynamite/lib/src/models/operation.dart

@@ -10,6 +10,8 @@ part 'operation.g.dart';
 class Operation {
   Operation({
     this.operationId,
+    this.summary,
+    this.description,
     this.tags,
     this.parameters,
     this.requestBody,
@@ -21,6 +23,10 @@ class Operation {
 
   final String? operationId;
 
+  final String? summary;
+
+  final String? description;
+
   final List<String>? tags;
 
   final List<Parameter>? parameters;

packages/dynamite/lib/src/models/operation.g.dart

@@ -9,10 +9,12 @@ part of 'operation.dart';
 Operation _$OperationFromJson(Map<String, dynamic> json) {
   $checkKeys(
     json,
-    allowedKeys: const ['operationId', 'tags', 'parameters', 'requestBody', 'responses'],
+    allowedKeys: const ['operationId', 'summary', 'description', 'tags', 'parameters', 'requestBody', 'responses'],
   );
   return Operation(
     operationId: json['operationId'] as String?,
+    summary: json['summary'] as String?,
+    description: json['description'] as String?,
     tags: (json['tags'] as List<dynamic>?)?.map((e) => e as String).toList(),
     parameters:
         (json['parameters'] as List<dynamic>?)?.map((e) => Parameter.fromJson(e as Map<String, dynamic>)).toList(),
@@ -33,6 +35,8 @@ Map<String, dynamic> _$OperationToJson(Operation instance) {
   }
 
   writeNotNull('operationId', instance.operationId);
+  writeNotNull('summary', instance.summary);
+  writeNotNull('description', instance.description);
   writeNotNull('tags', instance.tags);
   writeNotNull('parameters', instance.parameters?.map((e) => e.toJson()).toList());
   writeNotNull('requestBody', instance.requestBody?.toJson());

packages/dynamite/lib/src/openapi_builder.dart

@@ -550,7 +550,18 @@ class OpenAPIBuilder implements Builder {
                             final methodName = _toDartName(operationId);
                             b
                               ..name = methodName
-                              ..modifier = MethodModifier.async;
+                              ..modifier = MethodModifier.async
+                              ..docs.addAll([
+                                if (operation.summary != null) ...[
+                                  operation.summary!,
+                                ],
+                                if (operation.summary != null && operation.description != null) ...[
+                                  '',
+                                ],
+                                if (operation.description != null) ...[
+                                  operation.description!,
+                                ],
+                              ]);
 
                             final code = StringBuffer('''
                             var path = '$path';