sentio/side.go

package sentio

import (
	"fmt"
	"strings"
)

type Side int

const (
	LONG Side = iota
	SHORT
	BASE
)

var sides = map[Side]string{
	LONG:  "LONG",
	SHORT: "SHORT",
	BASE:  "BASE",
}

func (s Side) String() string {
	side, ok := sides[s]
	if ok {
		return side
	}

	return "undefined"
}

func ParseSide(s string) (Side, error) {
	s = strings.TrimSpace(s)
	s = strings.ToUpper(s)

	for side, s2 := range sides {
		if s == s2 {
			return side, nil
		}
	}

	return -1, fmt.Errorf("`sentio.ParseSide`: undefined Side `%s`", s)
}