package math

import (
	"math"
)

type SignedNumber interface {
	~int | ~int8 | ~int16 | ~int32 | ~int64 | ~float32 | ~float64
}

type Float interface {
	~float32 | ~float64
}

func Abs[T SignedNumber](i T) T {
	var zero T
	if i < zero {
		return -i
	}
	return i
}

func Round[T Float](n T, precision int) T {
	if precision == 0 {
		return T(math.Round(float64(n)))
	}

	ratio := math.Pow(10, float64(precision))
	f := math.Round(float64(n)*ratio) / ratio
	return T(f)
}

func RoundInt[T Float](n T) int {
	return int(Round(n, 0))
}

func Sqrt[T Float](n T) T {
	return T(math.Sqrt(float64(n)))
}