package sensorconfig

import (
	"encoding/json"
	"fmt"
	"strconv"
	"strings"

	cuej "git.loafle.net/commons/util-go/encoding/json"
)

type ResultSetRow struct {
	*ResultSet
}

func (rsr *ResultSetRow) setMeta() {
	meta := make([]string, 0)
	arrayColumns := rsr.Item.MappingInfo.ArrayColumns
	keyColumns := rsr.Item.MappingInfo.KeyColumns
	valueColumn := rsr.Item.MappingInfo.ValueColumn

	if nil != arrayColumns {
		for _, c := range arrayColumns {
			meta = append(meta, c)
		}
	}

	if nil != keyColumns {
		for _, c := range keyColumns {
			meta = append(meta, c)
		}
	}

	if "" != valueColumn {
		meta = append(meta, valueColumn)
	}

	if nil == rsr.Meta {
		rsr.Meta = make(map[string]json.Number, 0)
	}

	for i := 0; i < len(meta); i++ {
		rsr.Meta[meta[i]] = json.Number(strconv.Itoa(i))
	}
}

func (rsr *ResultSetRow) GetData() map[string]string {
	return rsr.parse()
}

func (rsr *ResultSetRow) parse() map[string]string {
	valueColumn := rsr.Item.MappingInfo.ValueColumn

	rm := make(map[string]string, 0)

	for _, row := range rsr.Rows {
		key := rsr.makeKey(row)
		if "" == key {
			continue
		}
		idx, _ := cuej.NumberToInt(rsr.Meta[valueColumn])
		rm[key] = row[idx]
	}

	return rm
}

func (rsr *ResultSetRow) makeKey(data []string) string {
	metrics := rsr.Item.Keys
	arrayColumns := rsr.Item.MappingInfo.ArrayColumns
	keyColumns := rsr.Item.MappingInfo.KeyColumns
	keys := rsr.Item.Keys

	findIndex := -1

Loop:
	for _, keyColumn := range keyColumns {
		idx, _ := cuej.NumberToInt(rsr.Meta[keyColumn])
		row := data[idx]
		for i := 0; i < len(keys); i++ {
			if row == keys[i].Key {
				findIndex = i
				break Loop
			}
		}
	}

	if 0 > findIndex {
		return ""
	}

	metric := metrics[findIndex].Metric

	convertChar := "$"

	if nil != arrayColumns {
		for i := 0; i < len(arrayColumns); i++ {
			convertStr := fmt.Sprintf("%s%d", convertChar, i)
			idx, _ := cuej.NumberToInt(rsr.Meta[arrayColumns[i]])
			replaceString := data[idx]
			metric = strings.Replace(metric, convertStr, "'"+replaceString+"'", -1)
		}
	}
	return metric
}