package cli

import (
	"fmt"
	"strings"

	"github.com/alecthomas/kong"
)

var _ kong.MapperValue = (*TokenClaim)(nil)

type TokenClaim struct {
	Key, Value string
}

func (t *TokenClaim) Decode(ctx *kong.DecodeContext) error {
	token, err := ctx.Scan.PopValue("claim")
	if err != nil {
		return err
	}

	split := strings.Split(token.String(), "=")
	if len(split) != 2 {
		return fmt.Errorf("cannot split into key value pair: %s", token.String())
	}

	t.Key = split[0]
	t.Value = split[1]

	return nil
}