// Copyright 2021 gRPC authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

syntax = "proto3";

package api_fuzzer;

import "test/core/event_engine/fuzzing_event_engine/fuzzing_event_engine.proto";
import "test/core/test_util/fuzz_config_vars.proto";
import "test/core/test_util/fuzzing_channel_args.proto";

message Empty {}

message ByteSlice {
    reserved 2;
    reserved "intern";
    bytes value = 1;
}

message StringSlice {
    reserved 2;
    reserved "intern";
    string value = 1;
}

message CredArtifact {
    oneof type {
        string custom = 1;
        int32 builtin = 2;
    }
}

message SslChannelCreds {
    CredArtifact root_certs = 1;
    CredArtifact private_key = 2;
    CredArtifact certs = 3;
}

message CompositeCallCreds {
    repeated CallCreds call_creds = 1;
}

message IAM {
    string auth_token = 1;
    string auth_selector = 2;
}

message CallCreds {
    oneof type {
        CompositeCallCreds composite_call_creds = 1;
        string access_token = 2;
        IAM iam = 3;
        Empty null = 4;
    }
}

message CompositeChannelCreds {
    ChannelCreds channel_creds = 1;
    CallCreds call_creds = 2;
}

message ChannelCreds {
    oneof type {
        SslChannelCreds ssl_channel_creds = 1;
        CompositeChannelCreds composite_channel_creds = 2;
        Empty null = 3;
    }
}

message ServerCreds {
    oneof type {
        Empty insecure_creds = 1;
        Empty null = 2;
    }    
}

message Metadatum {
    StringSlice key = 1;
    ByteSlice value = 2;
}

message CreateChannel {
    string target = 1;
    grpc.testing.FuzzingChannelArgs channel_args = 2;
    ChannelCreds channel_creds = 3;
    bool inproc = 4;
}

message Http2ServerPort {
    int32 port = 1;
    ServerCreds server_creds = 2;
}

message CreateServer {
    grpc.testing.FuzzingChannelArgs channel_args = 1;
    repeated Http2ServerPort http2_ports = 2;
}

message CreateCall {
    uint32 propagation_mask = 1;
    StringSlice method = 2;
    StringSlice host = 3;
    int32 timeout = 4;
}

message SendInitialMetadata {
    repeated Metadatum metadata = 1;
}

message SendMessage {
    repeated ByteSlice message = 1;
}

message SendCloseFromClient {
}

message SendStatusFromServer {
    repeated Metadatum metadata = 1;
    uint32 status_code = 2;
    ByteSlice status_details = 3;
}

message ReceiveInitialMetadata {
}

message ReceiveMessage {
}

message ReceiveStatusOnClient {
}

message ReceiveCloseOnServer {
}

message BatchOp {
    oneof op {
        SendInitialMetadata send_initial_metadata = 1;
        SendMessage send_message = 2;
        SendCloseFromClient send_close_from_client = 3;
        SendStatusFromServer send_status_from_server = 4;
        ReceiveInitialMetadata receive_initial_metadata = 5;
        ReceiveMessage receive_message = 6;
        ReceiveStatusOnClient receive_status_on_client = 7;
        ReceiveCloseOnServer receive_close_on_server = 8;
    }
    uint32 flags = 100;
}

message Batch {
    repeated BatchOp operations = 1;
}

message Action {
    reserved 2;
    oneof type {
        Empty poll_cq = 1;
        CreateChannel create_channel = 3;
        Empty close_channel = 4;
        CreateServer create_server = 5;
        Empty shutdown_server = 6;
        Empty cancel_all_calls_if_shutdown = 7;
        Empty destroy_server_if_ready = 8;
        bool check_connectivity = 9;
        uint32 watch_connectivity = 10;
        CreateCall create_call = 11;
        Empty change_active_call = 12;
        Batch queue_batch = 13;
        Empty cancel_call = 14;
        Empty get_peer = 15;
        Empty get_target = 16;
        Empty ping = 17;
        string enable_tracer = 18;
        string disable_tracer = 19;
        Empty request_call = 20;
        Empty destroy_call = 21;
        uint32 resize_resource_quota = 22;
        uint32 sleep_ms = 23;
    }
}

message Msg {
    repeated Action actions = 1;
    fuzzing_event_engine.Actions event_engine_actions = 2;
    grpc.testing.FuzzConfigVars config_vars = 3;
}