package util

import (
	"fmt"
	"math"
	"strconv"
	"regexp"
)

func StringToFloat64(str string) float64 {
	n, _ := strconv.ParseFloat(str, 64)
	return n
}

func Float64ToString(num float64) string {

	return fmt.Sprintf("%v", toFixed(num, 2))
}

func round(num float64) int {
	return int(num + math.Copysign(0.5, num))
}

func toFixed(num float64, precision int) float64 {
	output := math.Pow(10, float64(precision))
	return float64(round(num*output)) / output
}

func ExtractInBracket(str string) string {
	regex := regexp.MustCompile(`\[(.*?)\]`)
	return regex.FindStringSubmatch(str)[1]
}