dns

type DNSRecord interface {
	// RecordPrefix returns the DNS owner label prefix relative to the base domain,
	// e.g. "_dmarc." or "" for the apex.
	RecordPrefix() string
	// RecordType returns the DNS record type string, e.g. "TXT" or "MX".
	RecordType() string
	// RecordValue returns the wire-ready record value for insertion into a
	// CoreDNS template answer line.
	RecordValue() string
}

type DOHClient struct {
	Client *http.Client
	URL    *url.URL
}

type TXTRecord struct {
	// Name is the DNS owner label relative to the base domain. "" = apex.
	Name string `mapstructure:"name" json:"name,omitempty"`
	// Value is a Go template string for the TXT record content (e.g. "v=spf1 {{.OutboundIPList}} -all").
	Value string `mapstructure:"value" json:"value"`
	// TTL is the DNS TTL in seconds advertised to resolvers. Zero uses DefaultTTL.
	TTL uint32 `mapstructure:"ttl" json:"ttl,omitempty"`
}

type TemplatedRecord interface {
	Render(data any) error
	Empty() bool
}