package ledger

import "fmt"

type Currency string

const (
	USD = Currency("$")
)

type Delta struct {
	Date        string
	Name        string
	Value       float64
	Currency    Currency
	Description string
	isSet       bool
}

func newDelta(d, desc, name string, v float64, c string, isSet bool) Delta {
	return Delta{
		Date:        d,
		Name:        name,
		Value:       v,
		Currency:    Currency(c),
		Description: desc,
		isSet:       isSet,
	}
}

func (delta Delta) Debug() string {
	return fmt.Sprintf("{@%s %s:\"%s\" %s%.2f %s}", delta.Date, delta.Name, delta.Description, func() string {
		if !delta.isSet {
			return ""
		}
		return "= "
	}(), delta.Value, delta.Currency)
}