feat(dynamite): gracefully handle multiple mimeTypes and default responses

Signed-off-by: Nikolas Rimikis <leptopoda@users.noreply.github.com>

packages/dynamite/dynamite/lib/src/builder/client.dart

@@ -193,7 +193,11 @@ Iterable<Method> buildTags(
       var responses = <openapi.Response, List<int>>{};
       if (operation.responses != null) {
         for (final responseEntry in operation.responses!.entries) {
-          final statusCode = int.parse(responseEntry.key);
+          final statusCode = int.tryParse(responseEntry.key);
+          if (statusCode == null) {
+            print('Default responses are not supported right now. Skipping it for $operationId');
+            continue;
+          }
           final response = responseEntry.value;
 
           responses[response] ??= [];

packages/dynamite/dynamite/lib/src/builder/resolve_mime_type.dart

@@ -15,7 +15,7 @@ TypeResult? resolveMimeTypeDecode(
 ) {
   if (response.content != null) {
     if (response.content!.length > 1) {
-      throw Exception('Can not work with multiple mime types right now');
+      print('Can not work with multiple mime types right now. Using the first supported.');
     }
 
     for (final content in response.content!.entries) {
@@ -35,10 +35,9 @@ TypeResult? resolveMimeTypeDecode(
         return TypeResultBase('String');
       } else if (mimeType == 'application/json') {
         return result;
-      } else {
-        throw Exception('Can not parse mime type "$mimeType"');
       }
     }
+    throw Exception('Can not parse any mime type of Operation: "$identifier"');
   }
   return null;
 }
@@ -52,7 +51,7 @@ Iterable<String> resolveMimeTypeEncode(
 ) sync* {
   if (operation.requestBody != null) {
     if (operation.requestBody!.content!.length > 1) {
-      throw Exception('Can not work with multiple mime types right now');
+      print('Can not work with multiple mime types right now. Using the first supported.');
     }
     for (final content in operation.requestBody!.content!.entries) {
       final mimeType = content.key;
@@ -121,9 +120,9 @@ Iterable<String> resolveMimeTypeEncode(
             yield '}';
           }
           return;
-        default:
-          throw Exception('Can not parse mime type "$mimeType"');
       }
     }
+
+    throw Exception('Can not parse any mime type of Operation: "$identifier"');
   }
 }