package dns

import (
	"fmt"
	"os"

	"github.com/libdns/cloudflare"
	"github.com/libdns/libdns"
)

const (
	// CloudflareAPIToken is the environment variable
	// containing the API Token
	CloudflareAPIToken = "CLOUDFLARE_DNS_API_TOKEN"
)

// Provider manages DNS entries
type Provider interface {
	libdns.RecordGetter
	libdns.RecordDeleter
	libdns.RecordSetter
	libdns.RecordAppender
}

// DefaultDNSProvider returns a cloudflare DNS provider
// using an API Token from env [CloudflareAPIToken]
func DefaultDNSProvider() (*cloudflare.Provider, error) {
	s := os.Getenv(CloudflareAPIToken)
	if s == "" {
		return nil, fmt.Errorf("%q: %s", CloudflareAPIToken, "not found")
	}

	p := &cloudflare.Provider{
		APIToken: s,
	}

	return p, nil
}