package esquery

import "github.com/fatih/structs"

/*******************************************************************************
 * Match All Queries
 * https://www.elastic.co/guide/en/elasticsearch/reference/current/query-dsl-match-all-query.html
 ******************************************************************************/

type MatchAllQuery struct {
	all    bool
	params matchAllParams
}

type matchAllParams struct {
	Boost float32 `structs:"boost,omitempty"`
}

func (a *MatchAllQuery) Map() map[string]interface{} {
	var mType string
	switch a.all {
	case true:
		mType = "match_all"
	default:
		mType = "match_none"
	}

	return map[string]interface{}{
		mType: structs.Map(a.params),
	}
}

func MatchAll() *MatchAllQuery {
	return &MatchAllQuery{all: true}
}

func (q *MatchAllQuery) Boost(b float32) *MatchAllQuery {
	if q.all {
		q.params.Boost = b
	}
	return q
}

func MatchNone() *MatchAllQuery {
	return &MatchAllQuery{all: false}
}