// Copyright 2019 The Vearch Authors.
//
// 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 request

import (
	"encoding/json"
	"github.com/vearch/vearch/ps/engine/sortorder"
)

type SearchDocumentRequest struct {
	From         int               `json:"from,omitempty"`
	Size         *int              `json:"size,omitempty"`
	Fields       []string          `json:"fields,omitempty"`
	Query        json.RawMessage   `json:"query,omitempty"`
	Highlight    *HighlightRequest `json:"highlight,omitempty"`
	MinScore     float64           `json:"min_score,omitempty"`
	Sort         json.RawMessage   `json:"sort,omitempty"`
	Explain      bool              `json:"explain,omitempty"`
	Aggs         json.RawMessage   `json:"aggs,omitempty"`
	Aggregations json.RawMessage   `json:"aggregations,omitempty"` //it not use only for json un serizable
	ScriptFields json.RawMessage   `json:"script_fields,omitempty"`
	Quick        bool              `json:"quick,omitempty"`
	VectorValue  bool              `json:"vector_value,omitempty"`
	sortOrder    sortorder.SortOrder
}

func (this *SearchDocumentRequest) SortOrder() (sortorder.SortOrder, error) {
	if this.sortOrder != nil {
		return this.sortOrder, nil
	}
	var err error
	this.sortOrder, err = sortorder.ParseSort(this.Sort)
	return this.sortOrder, err
}