From adef35049f6185aba68fe4b694c855b0af8191e3 Mon Sep 17 00:00:00 2001
From: Svilen Markov <7613769+svilenmarkov@users.noreply.github.com>
Date: Tue, 10 Sep 2024 05:33:32 +0100
Subject: [PATCH] Add warning when pihole doesn't return expected data points

---
 internal/feed/pihole.go | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/internal/feed/pihole.go b/internal/feed/pihole.go
index badfb1a..3849267 100644
--- a/internal/feed/pihole.go
+++ b/internal/feed/pihole.go
@@ -2,6 +2,7 @@ package feed
 
 import (
 	"errors"
+	"log/slog"
 	"net/http"
 	"sort"
 	"strings"
@@ -63,6 +64,11 @@ func FetchPiholeStats(instanceURL, token string) (*DNSStats, error) {
 
 	// Pihole _should_ return data for the last 24 hours in a 10 minute interval, 6*24 = 144
 	if len(responseJson.QueriesSeries) != 144 || len(responseJson.BlockedSeries) != 144 {
+		slog.Warn(
+			"DNS stats for pihole: did not get expected 144 data points",
+			"len(queries)", len(responseJson.QueriesSeries),
+			"len(blocked)", len(responseJson.BlockedSeries),
+		)
 		return stats, nil
 	}