API for ratios of DNS answers oer server

server/dnsanswers.go

@@ -0,0 +1,82 @@
+package server
+
+import (
+	"net/http"
+	"net/netip"
+
+	"github.com/labstack/echo/v4"
+	"go.ntppool.org/common/logger"
+	"golang.org/x/exp/slog"
+)
+
+const pointBasis float64 = 10000
+const pointSymbol = "‱"
+
+// const pointBasis = 1000
+// const pointSymbol = "‰"
+
+func (srv *Server) dnsAnswers(c echo.Context) error {
+
+	log := logger.Setup()
+
+	ctx := c.Request().Context()
+
+	conn, err := srv.chConn(ctx)
+	if err != nil {
+		slog.Error("could not connect to clickhouse", "err", err)
+		return c.String(http.StatusInternalServerError, "clickhouse error")
+	}
+
+	ip, err := netip.ParseAddr(c.Param("server"))
+	if err != nil {
+		log.Warn("could not parse server parameter", "server", c.Param("server"), "err", err)
+		return c.NoContent(http.StatusNotFound)
+	}
+
+	// q := ntpdb.New(srv.db)
+	// zoneStats, err := q.GetZoneStats(ctx)
+	// if err != nil {
+	// 	slog.Error("GetZoneStats", "err", err)
+	// 	return c.String(http.StatusInternalServerError, err.Error())
+	// }
+	// if zoneStats == nil {
+	// 	slog.Info("didn't get zoneStats")
+	// }
+
+	days := 4
+
+	serverData, err := srv.ch.ServerAnswerCounts(c.Request().Context(), conn, ip.String(), days)
+	if err != nil {
+		slog.Error("ServerUserCCData", "err", err)
+		return c.String(http.StatusInternalServerError, err.Error())
+	}
+
+	qtype := "A"
+	if ip.Is6() {
+		qtype = "AAAA"
+	}
+
+	totalData, err := srv.ch.AnswerTotals(c.Request().Context(), conn, qtype, days)
+	if err != nil {
+		slog.Error("AnswerTotals", "err", err)
+		return c.String(http.StatusInternalServerError, err.Error())
+	}
+
+	for _, cc := range serverData {
+		cc.Points = (pointBasis / float64(totalData[cc.CC])) * float64(cc.Count)
+		// log.Info("points", "cc", cc.CC, "points", cc.Points)
+	}
+
+	r := struct {
+		Server interface{}
+		// Totals interface{}
+		PointSymbol string
+	}{
+		Server:      serverData,
+		PointSymbol: pointSymbol,
+		// Totals: totalData,
+	}
+
+	return c.JSONPretty(http.StatusOK, r, "")
+
+}