1 files changed, 84 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/pihole/metrics.go b/src/go/collectors/go.d.plugin/modules/pihole/metrics.go
new file mode 100644
index 000000000..dd4b3b644
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/pihole/metrics.go
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package pihole
+
+type piholeMetrics struct {
+	summary    *summaryRawMetrics   // ?summary
+	queryTypes *queryTypesMetrics   // ?getQueryTypes
+	forwarders *forwardDestinations // ?getForwardedDestinations
+}
+
+func (p piholeMetrics) hasSummary() bool {
+	return p.summary != nil
+}
+func (p piholeMetrics) hasQueryTypes() bool {
+	return p.queryTypes != nil
+}
+func (p piholeMetrics) hasForwarders() bool {
+	return p.forwarders != nil && len(p.forwarders.Destinations) > 0
+}
+
+type piholeAPIVersion struct {
+	Version int
+}
+
+type summaryRawMetrics struct {
+	DomainsBeingBlocked int64   `json:"domains_being_blocked"`
+	DNSQueriesToday     int64   `json:"dns_queries_today"`
+	AdsBlockedToday     int64   `json:"ads_blocked_today"`
+	AdsPercentageToday  float64 `json:"ads_percentage_today"`
+	UniqueDomains       int64   `json:"unique_domains"`
+	QueriesForwarded    int64   `json:"queries_forwarded"`
+	QueriesCached       int64   `json:"queries_cached"`
+	ClientsEverSeen     int64   `json:"clients_ever_seen"`
+	UniqueClients       int64   `json:"unique_clients"`
+	DNSQueriesAllTypes  int64   `json:"dns_queries_all_types"`
+	ReplyNODATA         int64   `json:"reply_NODATA"`
+	ReplyNXDOMAIN       int64   `json:"reply_NXDOMAIN"`
+	ReplyCNAME          int64   `json:"reply_CNAME"`
+	ReplyIP             int64   `json:"reply_IP"`
+	PrivacyLevel        int64   `json:"privacy_level"`
+	Status              string  `json:"status"`
+	GravityLastUpdated  struct {
+		// gravity.list has been removed (https://github.com/pi-hole/pi-hole/pull/2871#issuecomment-520251509)
+		FileExists bool `json:"file_exists"`
+		Absolute   *int64
+	} `json:"gravity_last_updated"`
+}
+
+type queryTypesMetrics struct {
+	Types struct {
+		A    float64 `json:"A (IPv4)"`
+		AAAA float64 `json:"AAAA (IPv6)"`
+		ANY  float64
+		SRV  float64
+		SOA  float64
+		PTR  float64
+		TXT  float64
+	} `json:"querytypes"`
+}
+
+// https://github.com/pi-hole/FTL/blob/6f69dd5b4ca60f925d68bfff3869350e934a7240/src/api/api.c#L474
+type forwardDestinations struct {
+	Destinations map[string]float64 `json:"forward_destinations"`
+}
+
+//type (
+//	item map[string]int64
+//
+//	topClients struct {
+//		Sources item `json:"top_sources"`
+//	}
+//	topItems struct {
+//		TopQueries item `json:"top_queries"`
+//		TopAds     item `json:"top_ads"`
+//	}
+//)
+//
+//func (i *item) UnmarshalJSON(data []byte) error {
+//	if isEmptyArray(data) {
+//		return nil
+//	}
+//	type plain *item
+//	return json.Unmarshal(data, (plain)(i))
+//}