package pain

import (
	"fmt"
	"strings"
)

type DrctDbtTxInf struct {
	Id     PaymentId          `xml:"PmtId"`
	Amount CurrencyWithAmount `xml:"InstdAmt"`
}

type CurrencyWithAmount struct {
	Currency string `xml:"Ccy,attr"`
	Value    string `xml:",innerxml"`
}

type PaymentId struct {
	InstrumentId string `xml:"InstrId"`
	EndToEndId   string `xml:"EndToEndId"`
}

func (p *PaymentId) Valid() error {
	var err []string
	if !SEPARegexps["InstrId"].MatchString(p.InstrumentId) {
		err = append(err, "instrument id does not match format")
	}
	if !SEPARegexps["EndToEndId"].MatchString(p.EndToEndId) {
		err = append(err, "end-to-end id does not match format")
	}

	if len(err) > 0 {
		return fmt.Errorf("payment id not valid: %v", strings.Join(err, ", "))
	}
	return nil
}