✨ 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/tools/server/sdk/pihole/piHole.ts

@@ -0,0 +1,74 @@
+import { PiHoleApiStatusChangeResponse, PiHoleApiSummaryResponse } from './piHole.type';
+
+export class PiHoleClient {
+  private readonly baseHostName: string;
+
+  constructor(hostname: string, private readonly apiToken: string) {
+    this.baseHostName = this.trimStringEnding(hostname, ['/admin/index.php', '/admin', '/']);
+  }
+
+  async getSummary() {
+    const response = await fetch(
+      new URL(`${this.baseHostName}/admin/api.php?summaryRaw&auth=${this.apiToken}`)
+    );
+
+    if (response.status !== 200) {
+      throw new Error(`Status code does not indicate success: ${response.status}`);
+    }
+
+    const json = await response.json();
+
+    if (Array.isArray(json)) {
+      throw new Error(
+        `Response does not indicate success. Authentication is most likely invalid: ${json}`
+      );
+    }
+
+    return json as PiHoleApiSummaryResponse;
+  }
+
+  async enable() {
+    const response = await this.sendStatusChangeRequest('enable');
+    return response.status === 'enabled';
+  }
+
+  async disable() {
+    const response = await this.sendStatusChangeRequest('disable');
+    return response.status === 'disabled';
+  }
+
+  private async sendStatusChangeRequest(
+    action: 'enable' | 'disable'
+  ): Promise<PiHoleApiStatusChangeResponse> {
+    const response = await fetch(
+      `${this.baseHostName}/admin/api.php?${action}&auth=${this.apiToken}`
+    );
+
+    if (response.status !== 200) {
+      return Promise.reject(new Error(`Status code does not indicate success: ${response.status}`));
+    }
+
+    const json = await response.json();
+
+    if (Array.isArray(json)) {
+      return Promise.reject(
+        new Error(
+          `Response does not indicate success. Authentication is most likely invalid: ${json}`
+        )
+      );
+    }
+
+    return json as PiHoleApiStatusChangeResponse;
+  }
+
+  private trimStringEnding(original: string, toTrimIfExists: string[]) {
+    for (let i = 0; i < toTrimIfExists.length; i += 1) {
+      if (!original.endsWith(toTrimIfExists[i])) {
+        continue;
+      }
+      return original.substring(0, original.indexOf(toTrimIfExists[i]));
+    }
+
+    return original;
+  }
+}