// 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 indexcoord

import (
	"context"
	"testing"

	"github.com/milvus-io/milvus/internal/proto/commonpb"
	"github.com/milvus-io/milvus/internal/proto/indexpb"
	"github.com/milvus-io/milvus/internal/proto/schemapb"
	"github.com/stretchr/testify/assert"
)

func TestNodeManager_PeekClient(t *testing.T) {
	nm := NewNodeManager(context.Background())
	meta := Meta{
		indexMeta: &indexpb.IndexMeta{
			Req: &indexpb.BuildIndexRequest{
				DataPaths: []string{"PeekClient-1", "PeekClient-2"},
				NumRows:   1000,
				TypeParams: []*commonpb.KeyValuePair{
					{
						Key:   "dim",
						Value: "128",
					},
				},
				FieldSchema: &schemapb.FieldSchema{
					DataType: schemapb.DataType_FloatVector,
				},
			},
		},
	}
	nodeID, client := nm.PeekClient(meta)
	assert.Equal(t, int64(-1), nodeID)
	assert.Nil(t, client)
	err := nm.AddNode(1, "indexnode-1")
	assert.Nil(t, err)
	nm.pq.SetMemory(1, 100)
	nodeID2, client2 := nm.PeekClient(meta)
	assert.Equal(t, int64(0), nodeID2)
	assert.Nil(t, client2)
}