package dns

// DNSSettings represents router DNS forwarder, upstream and cache configuration.
type DNSSettings struct {
	Servers             []string       `json:"servers"`               // Configured static upstream DNS servers (e.g. 1.1.1.1, 8.8.8.8)
	DynamicServers      []string       `json:"dynamic_servers"`       // Dynamic DNS servers learned from DHCP/PPP
	AllowRemoteRequests bool           `json:"allow_remote_requests"` // Accept queries from LAN devices (port 53)
	CacheSize           int            `json:"cache_size"`            // Dnsmasq cache size in entries (default 1000)
	Domain              string         `json:"domain"`                // Local domain e.g. "home.lan"
	DoHServer           string         `json:"doh_server,omitempty"`  // Optional DNS-over-HTTPS URL
	VerifyDoHCert       bool           `json:"verify_doh_cert"`       // Validate DoH certificate
	StaticRecords       []StaticRecord `json:"static_records"`        // Local static DNS records
}

// StaticRecord represents a static DNS mapping (hostname -> IP / CNAME)
type StaticRecord struct {
	ID       string `json:"id"`
	Name     string `json:"name"`               // FQDN or hostname e.g. "myrouter.lan"
	Type     string `json:"type"`               // "A", "AAAA", "CNAME", "TXT"
	Address  string `json:"address"`            // Target IP address or target FQDN
	TTL      int    `json:"ttl,omitempty"`      // TTL in seconds (default 3600)
	Comment  string `json:"comment,omitempty"`
	Disabled bool   `json:"disabled"`
}

// DNSStatus provides live status for the router DNS system.
type DNSStatus struct {
	ActiveServers       []string `json:"active_servers"`
	AllowRemoteRequests bool     `json:"allow_remote_requests"`
	CacheSize           int      `json:"cache_size"`
	StaticCount         int      `json:"static_count"`
	Domain              string   `json:"domain"`
	ResolvConfContent   string   `json:"resolv_conf_content"`
	ServiceRunning      bool     `json:"service_running"`
}