// SPDX-License-Identifier: Apache-2.0
//
// The OpenSearch Contributors require contributions made to
// this file be licensed under the Apache-2.0 license or a
// compatible open source license.
//
// Modifications Copyright OpenSearch Contributors. See
// GitHub history for details.

// 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 opensearchapi

import (
	"fmt"
	"strconv"
	"strings"
	"time"
)

// ReindexParams represents possible parameters for the ReindexReq
type ReindexParams struct {
	MaxDocs             *int
	Refresh             *bool
	RequestsPerSecond   *int
	Scroll              time.Duration
	Slices              interface{}
	Timeout             time.Duration
	WaitForActiveShards string
	WaitForCompletion   *bool

	Pretty     bool
	Human      bool
	ErrorTrace bool
	FilterPath []string
}

func (r ReindexParams) get() map[string]string {
	params := make(map[string]string)

	if r.MaxDocs != nil {
		params["max_docs"] = strconv.FormatInt(int64(*r.MaxDocs), 10)
	}

	if r.Refresh != nil {
		params["refresh"] = strconv.FormatBool(*r.Refresh)
	}

	if r.RequestsPerSecond != nil {
		params["requests_per_second"] = strconv.FormatInt(int64(*r.RequestsPerSecond), 10)
	}

	if r.Scroll != 0 {
		params["scroll"] = formatDuration(r.Scroll)
	}

	if r.Slices != nil {
		params["slices"] = fmt.Sprintf("%v", r.Slices)
	}

	if r.Timeout != 0 {
		params["timeout"] = formatDuration(r.Timeout)
	}

	if r.WaitForActiveShards != "" {
		params["wait_for_active_shards"] = r.WaitForActiveShards
	}

	if r.WaitForCompletion != nil {
		params["wait_for_completion"] = strconv.FormatBool(*r.WaitForCompletion)
	}

	if r.Pretty {
		params["pretty"] = "true"
	}

	if r.Human {
		params["human"] = "true"
	}

	if r.ErrorTrace {
		params["error_trace"] = "true"
	}

	if len(r.FilterPath) > 0 {
		params["filter_path"] = strings.Join(r.FilterPath, ",")
	}

	return params
}