package triangle

// KindFromSides returns what type of triangle has the sides
// of length a, b, and c
func KindFromSides(a, b, c float64) Kind {
	if a+b > c && b+c > a && a+c > b {
		if a == b && b == c {
			return Equ
		}
		if a == b || b == c || a == c {
			return Iso
		}
		return Sca
	}
	return NaT
}

// Kind describes the different types of triangles
type Kind int

const (
	// Equ - equilateral
	Equ = iota
	// Iso - isosceles
	Iso
	// Sca - scalene
	Sca
	// NaT - not a triangle
	NaT
)