package sensorconfig

import "encoding/json"

type ResultSetter interface {
	AddRow(row []string)
	GetMeta() map[string]json.Number
	GetData() map[string]string
}

type ResultSet struct {
	Item *Item                  `json:"item,omitempty"`
	Rows [][]string             `json:"rows,omitempty"`
	Meta map[string]json.Number `json:"meta,omitempty"`
}

func (rs *ResultSet) AddRow(row []string) {
	rs.Rows = append(rs.Rows, row)
}

func (rs *ResultSet) GetMeta() map[string]json.Number {
	return rs.Meta
}

func NewResultSet(item *Item) ResultSetter {
	if nil == item.MappingInfo {
		item.MappingInfo = &MappingInfo{}
	}
	rs := &ResultSet{}
	rs.Item = item
	rs.Rows = make([][]string, 0)

	switch item.MappingInfo.ParseDirection {
	case "row":
		rsr := &ResultSetRow{}
		rsr.ResultSet = rs
		rsr.setMeta()
		return rsr
	default:
		rsc := &ResultSetCol{}
		rsc.ResultSet = rs
		rsc.setMeta()
		return rsc
	}

}