package state

import (
	"fmt"
	"math"
	"time"
)

const redisObjectExpire = 604800
const errInvalidValue = "invalid value %f"

func FloatToBool(input float64) interface{} {
	return int(input) != 0
}

func RoundMilli(input float64) interface{} {
	return math.Round(input*1000) / 1000
}

func RoundGPS(input float64) interface{} {
	return math.Round(input*100000) / 100000
}

func IntCeil(input float64) interface{} {
	return int(math.Ceil(input))
}

func IntFloor(input float64) interface{} {
	return int(math.Floor(input))
}

func Int(input float64) interface{} {
	return int(input)
}

// WHy does this return an array of bytes instead of a string, or a time.Time
func SerializeTimestampUSec(timestampUSec int) ([]byte, error) {
	return time.UnixMicro(int64(timestampUSec)).UTC().MarshalJSON()
}

func GetMappedStrValues(valueMap map[float64]string) func(float64) interface{} {
	return func(input float64) interface{} {
		if value, ok := valueMap[input]; ok {
			return value
		}

		return fmt.Sprintf(errInvalidValue, input)
	}
}