Time filtering of notifications

main.go

@@ -1198,7 +1198,45 @@ func actionConfigurationNotificationDelete(w http.ResponseWriter, r *http.Reques
 } // }}}
 
 func pageNotifications(w http.ResponseWriter, r *http.Request, _ *session.T) { // {{{
-	nss, err := notificationsSent()
+	var err error
+
+	// GET parameters.
+	var timeFrom, timeTo time.Time
+	lastWeek := time.Now().Add(time.Duration(-7 * 24 * time.Hour))
+
+	timeFrom, err = parseHTMLDateTime(r.URL.Query().Get("f"), lastWeek)
+	if err != nil {
+		httpError(w, werr.Wrap(err).Log())
+		return
+	}
+
+	timeTo, err = parseHTMLDateTime(r.URL.Query().Get("t"), time.Now())
+	if err != nil {
+		httpError(w, werr.Wrap(err).Log())
+		return
+	}
+
+	var presetTime int
+	now := time.Now()
+	presetStr := r.URL.Query().Get("preset")
+	if presetStr != "" {
+		presetTime, err = strconv.Atoi(presetStr)
+		if err != nil {
+			pageError(w, "/notifications", werr.Wrap(err).WithData(presetStr).Log())
+			return
+		}
+		timeFrom = now.Add(time.Hour * -1 * time.Duration(presetTime))
+		timeTo = now
+	}
+
+	// Apply an optionally set offset (in seconds).
+	var offsetTime int
+	offsetTimeStr := r.URL.Query().Get("offset-time")
+	offsetTime, err = strconv.Atoi(offsetTimeStr)
+	timeFrom = timeFrom.Add(time.Second * time.Duration(offsetTime))
+	timeTo = timeTo.Add(time.Second * time.Duration(offsetTime))
+
+	nss, err := notificationsSent(timeFrom, timeTo)
 	if err != nil {
 		pageError(w, "/", werr.Wrap(err).Log())
 	}
@@ -1209,6 +1247,8 @@ func pageNotifications(w http.ResponseWriter, r *http.Request, _ *session.T) { /
 		CONFIG: smonConfig.Settings,
 		Data: map[string]any{
 			"Notifications": nss,
+			"TimeFrom":      timeFrom.Format("2006-01-02T15:04:05"),
+			"TimeTo":        timeTo.Format("2006-01-02T15:04:05"),
 		},
 	}