// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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.

package grpcindexnode

import (
	"context"
	"testing"

	"github.com/milvus-io/milvus/internal/indexnode"
	"github.com/milvus-io/milvus/internal/proto/commonpb"
	"github.com/milvus-io/milvus/internal/proto/indexpb"
	"github.com/milvus-io/milvus/internal/proto/internalpb"
	"github.com/milvus-io/milvus/internal/util/etcd"
	"github.com/milvus-io/milvus/internal/util/metricsinfo"
	"github.com/milvus-io/milvus/internal/util/paramtable"
	"github.com/stretchr/testify/assert"
)

var ParamsGlobal paramtable.GlobalParamTable

func TestIndexNodeServer(t *testing.T) {
	ctx := context.Background()
	server, err := NewServer(ctx)
	assert.Nil(t, err)
	assert.NotNil(t, server)

	inm := &indexnode.Mock{}
	ParamsGlobal.InitOnce()
	etcdCli, err := etcd.GetEtcdClient(&ParamsGlobal.BaseParams)
	assert.NoError(t, err)
	inm.SetEtcdClient(etcdCli)
	err = server.SetClient(inm)
	assert.Nil(t, err)

	err = server.Run()
	assert.Nil(t, err)

	t.Run("GetComponentStates", func(t *testing.T) {
		req := &internalpb.GetComponentStatesRequest{}
		states, err := server.GetComponentStates(ctx, req)
		assert.Nil(t, err)
		assert.Equal(t, internalpb.StateCode_Healthy, states.State.StateCode)
	})

	t.Run("GetTimeTickChannel", func(t *testing.T) {
		req := &internalpb.GetTimeTickChannelRequest{}
		resp, err := server.GetTimeTickChannel(ctx, req)
		assert.Nil(t, err)
		assert.Equal(t, commonpb.ErrorCode_Success, resp.Status.ErrorCode)
	})

	t.Run("GetStatisticsChannel", func(t *testing.T) {
		req := &internalpb.GetStatisticsChannelRequest{}
		resp, err := server.GetStatisticsChannel(ctx, req)
		assert.Nil(t, err)
		assert.Equal(t, commonpb.ErrorCode_Success, resp.Status.ErrorCode)
	})

	t.Run("CreateIndex", func(t *testing.T) {
		req := &indexpb.CreateIndexRequest{
			IndexBuildID: 0,
			IndexID:      0,
			DataPaths:    []string{},
		}
		resp, err := server.CreateIndex(ctx, req)
		assert.Nil(t, err)
		assert.Equal(t, commonpb.ErrorCode_Success, resp.ErrorCode)
	})

	t.Run("GetMetrics", func(t *testing.T) {
		req, err := metricsinfo.ConstructRequestByMetricType(metricsinfo.SystemInfoMetrics)
		assert.Nil(t, err)
		resp, err := server.GetMetrics(ctx, req)
		assert.Nil(t, err)
		assert.Equal(t, commonpb.ErrorCode_Success, resp.Status.ErrorCode)
	})

	err = server.Stop()
	assert.Nil(t, err)
}
