package auth

import (
	"context"
	"net/http"

	"github.com/pkg/errors"
)

type GetClaimFunc func(ctx context.Context, r *http.Request, claimName string) (string, error)

type Option struct {
	GetClaim GetClaimFunc
}

type OptionFunc func(*Option)

func defaultOptions() *Option {
	return &Option{
		GetClaim: dummyGetClaim,
	}
}

func dummyGetClaim(ctx context.Context, r *http.Request, claimName string) (string, error) {
	return "", errors.Errorf("dummy getclaim func cannot retrieve claim '%s'", claimName)
}

func WithGetClaim(fn GetClaimFunc) OptionFunc {
	return func(o *Option) {
		o.GetClaim = fn
	}
}