✨ Add pihole integration (#860)

* ✨ Add pihole integration

* Update src/widgets/adhole/AdHoleControls.tsx

Co-authored-by: Larvey <39219859+LarveyOfficial@users.noreply.github.com>

* Update src/tools/client/math.ts

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

* Update src/widgets/dnshole/DnsHoleSummary.tsx

Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

---------

Co-authored-by: Larvey <39219859+LarveyOfficial@users.noreply.github.com>
Co-authored-by: Meier Lukas <meierschlumpf@gmail.com>

src/pages/api/modules/dns-hole/summary.ts

@@ -0,0 +1,60 @@
+import Consola from 'consola';
+import { getCookie } from 'cookies-next';
+import { NextApiRequest, NextApiResponse } from 'next';
+import { findAppProperty } from '../../../../tools/client/app-properties';
+import { getConfig } from '../../../../tools/config/getConfig';
+import { PiHoleClient } from '../../../../tools/server/sdk/pihole/piHole';
+import { AdStatistics } from '../../../../widgets/dnshole/type';
+
+export const Get = async (request: NextApiRequest, response: NextApiResponse) => {
+  const configName = getCookie('config-name', { req: request });
+  const config = getConfig(configName?.toString() ?? 'default');
+
+  const applicableApps = config.apps.filter((x) => x.integration?.type === 'pihole');
+
+  const data: AdStatistics = {
+    domainsBeingBlocked: 0,
+    adsBlockedToday: 0,
+    adsBlockedTodayPercentage: 0,
+    dnsQueriesToday: 0,
+    status: [],
+  };
+
+  const adsBlockedTodayPercentageArr: number[] = [];
+
+  for (let i = 0; i < applicableApps.length; i += 1) {
+    const app = applicableApps[i];
+
+    try {
+      const piHole = new PiHoleClient(app.url, findAppProperty(app, 'password'));
+
+      // eslint-disable-next-line no-await-in-loop
+      const summary = await piHole.getSummary();
+
+      data.domainsBeingBlocked += summary.domains_being_blocked;
+      data.adsBlockedToday += summary.ads_blocked_today;
+      data.dnsQueriesToday += summary.dns_queries_today;
+      data.status.push({
+        status: summary.status,
+        appId: app.id,
+      });
+      adsBlockedTodayPercentageArr.push(summary.ads_percentage_today);
+    } catch (err) {
+      Consola.error(`Failed to communicate with PiHole at ${app.url}: ${err}`);
+    }
+  }
+
+  data.adsBlockedTodayPercentage = data.adsBlockedToday / data.dnsQueriesToday;
+  if (Number.isNaN(data.adsBlockedTodayPercentage)) {
+    data.adsBlockedTodayPercentage = 0;
+  }
+  return response.status(200).json(data);
+};
+
+export default async (request: NextApiRequest, response: NextApiResponse) => {
+  if (request.method === 'GET') {
+    return Get(request, response);
+  }
+
+  return response.status(405);
+};