// Copyright (c) 2024 Alibaba Group Holding Ltd.
//
// 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.

package langchain

import (
	"os"
)

const (
	MLlmGenerateSingle = "llmGenerateSingle"
	MAgentAction       = "agentAction"
	MChains            = "chains"
	MEmbedSingle       = "singleEmbed"
	MEmbedBatch        = "batchedEmbed"
	MRelevantDoc       = "relevantDocuments"
)

type langChainInnerEnabler struct {
	enabled bool
}

func (l langChainInnerEnabler) Enable() bool {
	return l.enabled
}

var langChainEnabler = langChainInnerEnabler{os.Getenv("OTEL_INSTRUMENTATION_LANGCHAIN_ENABLED") != "false"}

var langChainCommonInstrument = BuildCommonLangchainOtelInstrumenter()
