Implement cache deletion functionality and update documentation

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Raj Nandan Sharma
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

src/lib/server/cache/cache.ts

@@ -13,6 +13,11 @@ export async function setCache<T>(key: string, value: T | null | undefined, ttlS
   await redis.set(getCacheKey(key), payload, "EX", ttl);
 }
 
+export async function deleteCache(key: string): Promise<void> {
+  const redis = redisIOConnection();
+  await redis.del(getCacheKey(key));
+}
+
 export async function getCache<T>(
   key: string,
   fetcher?: () => Promise<T | null | undefined> | T | null | undefined,

src/lib/server/cache/setGet.ts

@@ -1,5 +1,5 @@
 import type { MonitoringData } from "../types/db.js";
-import { setCache, getCache } from "./cache.js";
+import { setCache, getCache, deleteCache } from "./cache.js";
 export async function SetLastMonitoringValue(tag: string, value: MonitoringData): Promise<void> {
   await setCache<MonitoringData>(tag + ":last_status", value, 86400); //set ttl to 1 day
 }
@@ -20,3 +20,8 @@ export async function SetLastHeartbeat(tag: string, timestamp: number): Promise<
 export async function GetLastHeartbeat(tag: string): Promise<{ timestamp: number } | null> {
   return await getCache<{ timestamp: number }>("last_heartbeat:" + tag, undefined, 45 * 86400);
 }
+
+export async function DeleteMonitorCaches(tag: string): Promise<void> {
+  await deleteCache(tag + ":last_status");
+  await deleteCache("last_heartbeat:" + tag);
+}

src/lib/server/controllers/monitorsController.ts

@@ -25,8 +25,8 @@ import type { DayWiseStatus, NumberWithChange } from "../../types/monitor.js";
 import GC, { getBadgeStyle, type BadgeStyle } from "../../global-constants.js";
 import { makeBadge } from "badge-maker";
 import { ErrorSvg } from "../../anywhere.js";
-import { GetLastMonitoringValue, SetLastHeartbeat } from "../cache/setGet.js";
+import { GetLastMonitoringValue, SetLastHeartbeat, DeleteMonitorCaches } from "../cache/setGet.js";
-import type { HeartbeatMonitor } from "../types/monitor.js";
+import type { HeartbeatMonitor, GroupMonitorTypeData } from "../types/monitor.js";
 
 interface GroupUpdateData {
   monitor_tag: string;
@@ -376,12 +376,71 @@ export const RegisterHeartbeat = async (tag: string, secret: string): Promise<st
   throw new Error("Invalid heartbeat secret");
 };
 
+/**
+ * Removes a monitor tag from all GROUP monitors that reference it,
+ * rebalances weights equally, and deactivates groups left with < 2 members.
+ */
+async function removeTagFromGroupMonitors(tag: string): Promise<void> {
+  const groupMonitors = await GetMonitorsParsed({ monitor_type: "GROUP" });
+
+  for (const group of groupMonitors) {
+    const typeData = group.type_data as GroupMonitorTypeData;
+    if (!typeData.monitors || !Array.isArray(typeData.monitors)) continue;
+
+    const hasMember = typeData.monitors.some((m) => m.tag === tag);
+    if (!hasMember) continue;
+
+    // Remove the deleted tag
+    const remaining = typeData.monitors.filter((m) => m.tag !== tag);
+
+    // Rebalance weights equally across remaining monitors
+    if (remaining.length > 0) {
+      const weight = Math.round((1 / remaining.length) * 1000) / 1000;
+      for (let i = 0; i < remaining.length; i++) {
+        remaining[i].weight =
+          i === remaining.length - 1
+            ? Math.round((1 - weight * (remaining.length - 1)) * 1000) / 1000
+            : weight;
+      }
+    }
+
+    typeData.monitors = remaining;
+
+    const updateData: Record<string, unknown> = {
+      id: group.id,
+      tag: group.tag,
+      name: group.name,
+      description: group.description,
+      image: group.image,
+      cron: group.cron,
+      default_status: group.default_status,
+      status: remaining.length < 2 ? "INACTIVE" : group.status,
+      category_name: group.category_name,
+      monitor_type: group.monitor_type,
+      type_data: JSON.stringify(typeData),
+      day_degraded_minimum_count: group.day_degraded_minimum_count,
+      day_down_minimum_count: group.day_down_minimum_count,
+      include_degraded_in_downtime: group.include_degraded_in_downtime,
+      is_hidden: group.is_hidden,
+      monitor_settings_json:
+        typeof group.monitor_settings_json === "string"
+          ? group.monitor_settings_json
+          : JSON.stringify(group.monitor_settings_json),
+      external_url: group.external_url,
+    };
+
+    await db.updateMonitor(updateData as unknown as MonitorRecord);
+  }
+}
+
 export const DeleteMonitorCompletelyUsingTag = async (tag: string): Promise<number> => {
   await db.deleteMonitorDataByTag(tag);
   await db.deleteIncidentMonitorsByTag(tag);
   await db.deleteMonitorAlertsByTag(tag);
   await db.deletePageMonitorsByTag(tag);
   await db.deleteMaintenanceMonitorsByTag(tag);
+  await removeTagFromGroupMonitors(tag);
+  await DeleteMonitorCaches(tag);
   return await db.deleteMonitorsByTag(tag);
 };
 

src/routes/(docs)/docs/+page.svelte

@@ -283,25 +283,22 @@
   </header>
 
   <section class="bg-background min-h-screen bg-(image:--docs-home-hero-gradient) px-6 py-20 md:py-24">
-    <div class="mx-auto mt-20 grid max-w-[1200px] items-center gap-10 lg:grid-cols-2">
+    <div class="mx-auto mt-20 grid max-w-[1200px] items-center gap-10">
-      <div class="text-center lg:text-left">
+      <div class="text-center">
-        <Badge variant="secondary" class="mb-6 inline-flex items-center gap-2 px-3 py-1 text-xs">
+        <Badge variant="outline" class="mb-6 inline-flex items-center gap-2 px-3 py-1 text-xs">
           <Shield class="h-3.5 w-3.5" />
           Production-ready status page platform
         </Badge>
         <h1 class="text-foreground mb-6 text-2xl leading-tight font-bold tracking-tight md:text-4xl">
-          Build trust with
+          Build stunning status pages with
-          <span class="from-primary to-accent-foreground bg-linear-to-r bg-clip-text text-transparent"
+          <span class="from-primary to-accent-foreground bg-linear-to-r bg-clip-text text-transparent"> Kener </span>
-            >{data.config.name}</span
-          >
-          documentation that actually gets used
         </h1>
-        <p class="text-muted-foreground mb-8 max-w-[760px] text-sm leading-relaxed md:text-base">
+        <p class="text-muted-foreground mx-auto mb-8 max-w-[760px] text-sm leading-relaxed md:text-base">
           From quick setup to advanced operations, Kener gives you open-source monitoring, incident workflows,
           notifications, maintenance scheduling, embeds, and automation APIs—all in one modern platform.
         </p>
 
-        <div class="mb-8 flex flex-wrap justify-center gap-3 md:gap-4 lg:justify-start">
+        <div class="mb-8 flex flex-wrap justify-center gap-3 md:gap-4 lg:justify-center">
           {#each getCtaButtons() as button (button.title)}
             <Button
               href={getHref(button.href)}

src/routes/(docs)/docs/content/v3/home.md

@@ -4,53 +4,9 @@ description: Kener is a feature-rich and modern status page system built with Sv
 ---
 
 <p align="center">
-	<img src="/newbg.png" width="100%" height="auto" class="rounded-lg shadow-lg" alt="kener example illustration">
+	<img src="/og.jpg" width="100%" height="auto" class="rounded-lg shadow-lg" alt="kener example illustration">
 </p>
 
-<p class="flex space-x-2 justify-center">
-	<a href="https://github.com/rajnandan1/kener/stargazers"  >
-		<img alt="GitHub Repo stars"   src="https://img.shields.io/github/stars/rajnandan1/kener?label=Star%20Repo&
-		style=social">
-	</a>
-	<a href="https://github.com/ivbeg/awesome-status-pages"  >
-		<img src="https://cdn.rawgit.com/sindresorhus/awesome/d7305f38d29fed78fa85652e3a63e154dd8e8829/media/badge.svg" alt="Awesome status page" />
-	</a>
-	<a href="https://hub.docker.com/r/rajnandan1/kener"  >
-		<img src="https://img.shields.io/docker/pulls/rajnandan1/kener" alt="Docker Kener" />
-	</a>
-</p>
-<div class="flex gap-4 justify-center">
-	<picture>
-		<source srcset="https://fonts.gstatic.com/s/e/notoemoji/latest/1f38a/512.webp" type="image/webp">
-		<img src="https://fonts.gstatic.com/s/e/notoemoji/latest/1f38a/512.gif" alt="🎊" width="32" height="32">
-	</picture>
-	<picture>
-		<source srcset="https://fonts.gstatic.com/s/e/notoemoji/latest/1f514/512.webp" type="image/webp">
-		<img src="https://fonts.gstatic.com/s/e/notoemoji/latest/1f514/512.gif" alt="🔔" width="32" height="32">
-	</picture>
-	<picture>
-  		<source srcset="https://fonts.gstatic.com/s/e/notoemoji/latest/2049_fe0f/512.webp" type="image/webp">
-  		<img src="https://fonts.gstatic.com/s/e/notoemoji/latest/2049_fe0f/512.gif" alt="⁉" width="32" height="32">
-	</picture>
-</div>
-<div class="flex gap-2 kener-home-links">
-	<a href="https://kener.ing" class="flex-1 border rounded-md py-4 px-2 text-center">
-		Live Demo
-	</a>
-	<a href="https://kener.ing/docs/quick-start" class="flex-1 border rounded-md  py-4 px-2 text-center">
-		Quick Start
-	</a>
-	<a href="https://github.com/rajnandan1/kener" class="flex-1 border rounded-md  py-4 px-2 text-center">
-		Clone
-	</a>
-	<a href="https://kener.ing/docs/deployment" class="flex-1 border rounded-md  py-4 px-2 text-center">
-		Deploy
-	</a>
-	<a href="https://kener.ing/docs/kener-apis" class="flex-1 border rounded-md  py-4 px-2 text-center">
-		APIs
-	</a>
-</div>
-
 ## Forget Boring Status Pages. Hello Kener!
 
 **Kener** isn't just another status page – it's a beautifully crafted, lightning-fast monitoring system that makes your services look good even when they're down. Built with modern tech (**SvelteKit** + **NodeJS**), it delivers enterprise-grade reliability monitoring without the enterprise price tag (it's completely free!).