// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. 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 msearch

import (
	"encoding/json"
	"fmt"

	"github.com/elastic/go-elasticsearch/v8/typedapi/types"
)

// AddSearch is a helper function to add a new search to the buffer of the current msearch request.
func (r *Msearch) AddSearch(header types.MultisearchHeader, body types.MultisearchBody) error {
	h, err := json.Marshal(header)
	if err != nil {
		return fmt.Errorf("msearch.AddSearch cannot serialize header: %w", err)
	}

	b, err := json.Marshal(body)
	if err != nil {
		return fmt.Errorf("msearch.AddSearch cannot serialize body: %w", err)
	}

	r.buf.Write(h)
	r.buf.Write([]byte("\n"))
	r.buf.Write(b)
	r.buf.Write([]byte("\n"))

	return nil
}
