Refactor oneOf variants in schema components

golden-file-tests/cx-api/build_facade_files_with_preview_visibility.sh

@@ -0,0 +1,31 @@
+# Directory containing the protobuf files
+mkdir -p proto
+cp -a src/** proto/
+cp -a deps/** proto/
+proto_dir="proto"
+go_out_dir="internal"
+mod_prefix="github.com/coralogix"
+mod_name="$mod_prefix/openapi-facade/go"
+proto_files=($(find "$proto_dir" -name "*.proto" -print))
+openapi_args=""
+
+# Build arguments for import paths of all modules
+for proto_file in "${proto_files[@]}" 
+do
+    out_module=$(dirname $proto_file)
+
+    if [[ $out_module == *"coralogix"* ]]; then
+        mod_path="${out_module##*/com/}"
+	# For all other protos, the package path is the same as the directory path
+	openapi_args+="--openapiv3_opt=M${proto_file##*$proto_dir/}=${mod_name}/${go_out_dir}/${mod_path} "
+    fi
+done
+
+protofile_list=""
+
+for proto_file in "${proto_files[@]}" 
+do
+    protofile_list+="${proto_file} "
+done
+
+protoc --proto_path=$proto_dir --openapiv3_out=.. --openapiv3_opt=allow_merge=true,ignore_additional_bindings=true,openapi_naming_strategy=simple,visibility_restriction_selectors=PREVIEW $openapi_args $protofile_list

golden-file-tests/cx-api/src/com/coralogixapis/thing/v1/thing.proto

@@ -19,14 +19,25 @@ message Thing {
   optional google.protobuf.Timestamp created_at = 4 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"2021-01-01T00:00:00Z\""}];
   NestedStruct nested_field = 5;
   string preview_field = 6 [(google.api.field_visibility).restriction = "PREVIEW"];
+  ThingType thing_type = 7 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"THING_TYPE_STANDARD\""}];
+  oneof polymorphic_field {
+    PolymorphicVariantA variant_a = 8;
+    PolymorphicVariantB variant_b = 9;
+  }
 }
 
 message NestedStruct { 
   int32 numeric_field = 1;
   string string_field = 2;
 }
 
+message PolymorphicVariantA {
+  string field_a = 1;
+}
 
+message PolymorphicVariantB {
+  int32 field_b = 1;
+}
 
 enum ThingType {
   option (grpc.gateway.protoc_gen_openapiv3.options.openapiv3_enum) = {

golden-file-tests/cx-api/src/com/coralogixapis/thing/v1/thing_service.proto

@@ -6,6 +6,7 @@ import "com/coralogixapis/thing/v1/thing.proto";
 import "google/api/annotations.proto";
 import "google/api/http.proto";
 import "google/api/visibility.proto";
+import "google/protobuf/timestamp.proto";
 import "protoc-gen-openapiv3/options/annotations.proto";
 
 // ThingService is the service for managing things.
@@ -18,8 +19,8 @@ service ThingService {
   // RPC for creating a thing.
   rpc CreateThing(CreateThingRequest) returns (CreateThingResponse) {
     option (google.api.http) = {
-      post: "/v1/things/{thing.nested_field.numeric_field}"
-      body: "thing.name"
+      post: "/v1/things"
+      body: "*"
     };
 
     option (grpc.gateway.protoc_gen_openapiv3.options.openapiv3_operation) = {
@@ -44,7 +45,7 @@ service ThingService {
   rpc PreviewMethod(CreateThingRequest) returns (CreateThingResponse) {
     option (google.api.http) = {
       post: "/v1/things/preview"
-      body: "thing.name"
+      body: "*"
     };
     option (google.api.method_visibility).restriction = "PREVIEW";
 
@@ -71,8 +72,8 @@ service ThingService {
   // RPC for replacing a thing.
   rpc ReplaceThing(ReplaceThingRequest) returns (ReplaceThingResponse) {
     option (google.api.http) = {
-      put: "/v1/things/{thing.id}"
-      body: "*"
+      put: "/v1/things/{thing_id}"
+      body: "thing"
     };
 
     option (grpc.gateway.protoc_gen_openapiv3.options.openapiv3_operation) = {
@@ -139,7 +140,7 @@ service ThingService {
 
   // RPC for listing things with pagination.
   rpc ListThings(ListThingsRequest) returns (ListThingsResponse) {
-    option (google.api.http) = {get: "/v1/things"};
+    option (google.api.http) = {get: "/v1/things/{page_size}"};
 
     option (grpc.gateway.protoc_gen_openapiv3.options.openapiv3_operation) = {
       responses: {
@@ -162,9 +163,21 @@ service ThingService {
 
 // CreateThingRequest is the request for the CreateThing RPC.
 message CreateThingRequest {
-  //  The thing to create.
-  Thing thing = 1;
-  string a_query_parameter = 2;
+  // ID is the unique identifier of the thing.
+  string id = 1 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"123e4567-e89b-12d3-a456-426614174000\""}];
+
+  // Name of the thing.
+  string name = 2 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"A Thing's Name\""}];
+
+  // Creation timestamp of the thing.
+  optional google.protobuf.Timestamp created_at = 4 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"2021-01-01T00:00:00Z\""}];
+  NestedStruct nested_field = 5;
+  string preview_field = 6 [(google.api.field_visibility).restriction = "PREVIEW"];
+  ThingType thing_type = 7 [(grpc.gateway.protoc_gen_openapiv3.options.openapiv3_field) = {example: "\"THING_TYPE_STANDARD\""}];
+  oneof polymorphic_field {
+    PolymorphicVariantA variant_a = 8;
+    PolymorphicVariantB variant_b = 9;
+  }
 }
 
 // CreateThingResponse is the response for the CreateThing RPC.
@@ -176,16 +189,16 @@ message CreateThingResponse {
 // ListThingsRequest is the request for the ListThings RPC.
 message ListThingsRequest {
   // The filter.
-  optional string filter = 1; // use whatever type is actually required
+  string filter = 1; // use whatever type is actually required
 
   // The page size.
-  optional int32 page_size = 2;
+  int32 page_size = 2;
 
   // The skip count.
-  optional int32 skip = 3;
+  int32 skip = 3;
 
   // The page token.
-  optional string page_token = 4;
+  string page_token = 4;
 }
 
 // ListThingsResponse is the response for the ListThings RPC.
@@ -203,6 +216,7 @@ message ListThingsResponse {
 // ReplaceThingRequest is the request for the ReplaceThing RPC.
 message ReplaceThingRequest {
   //  The thing to replace.
+  string thing_id = 2;
   Thing thing = 1;
 }
 

golden-file-tests/run_golden_file_test.sh

@@ -2,10 +2,24 @@
 cd cx-api && bash build_facade_files.sh
 cd ..
 
-if diff <(jq --sort-keys . apidocs_golden.swagger.json) <(jq --sort-keys . apidocs.swagger.json) > /dev/null; then
-  echo "Plugin output matches golden file."
+if diff <(jq --sort-keys . apidocs_golden.swagger.json | jq 'walk(if type == "object" and has("oneOf") and (.oneOf | type) == "array" then .oneOf |= sort_by(."$ref") else . end)') \
+     <(jq --sort-keys . apidocs.swagger.json | jq 'walk(if type == "object" and has("oneOf") and (.oneOf | type) == "array" then .oneOf |= sort_by(."$ref") else . end)') > /dev/null; then
+  echo "Plugin output matches golden file without preview visibility."
 else
-  echo "Plugin output does not match golden file."
+  echo "Plugin output does not match golden file without preview visibility."
+  exit 1
+fi
+
+rm -r apidocs.swagger.json
+
+cd cx-api && bash build_facade_files_with_preview_visibility.sh
+cd ..
+
+if diff <(jq --sort-keys . apidocs_golden_preview_visibility.swagger.json | jq 'walk(if type == "object" and has("oneOf") and (.oneOf | type) == "array" then .oneOf |= sort_by(."$ref") else . end)') \
+     <(jq --sort-keys . apidocs.swagger.json | jq 'walk(if type == "object" and has("oneOf") and (.oneOf | type) == "array" then .oneOf |= sort_by(."$ref") else . end)') > /dev/null; then
+  echo "Plugin output matches golden file with preview visibility."
+else
+  echo "Plugin output does not match golden file with preview visibility."
   exit 1
 fi
 

protoc-gen-openapiv3/internal/genopenapi/helpers.go

@@ -3,6 +3,11 @@
 
 package genopenapi
 
+import (
+	"strings"
+	"unicode"
+)
+
 // this method will filter the same fields and return the unique one
 func getUniqueFields(schemaFieldsRequired []string, fieldsRequired []string) []string {
 	var unique []string
@@ -23,3 +28,28 @@ func getUniqueFields(schemaFieldsRequired []string, fieldsRequired []string) []s
 	}
 	return unique
 }
+
+func toPascalCase(s string) string {
+	if s == "" {
+		return ""
+	}
+
+	var builder strings.Builder
+	capitalizeNext := true
+
+	for _, r := range s {
+		if r == '_' {
+			capitalizeNext = true
+			continue // Skip the underscore itself
+		}
+
+		if capitalizeNext {
+			builder.WriteRune(unicode.ToUpper(r))
+			capitalizeNext = false // Reset the flag
+		} else {
+			builder.WriteRune(r)
+		}
+	}
+
+	return builder.String()
+}