rewrite typeysation

src/tidal/service.ts

@@ -1,43 +1,43 @@
 import type { TidalSong, TidalVolume } from "@dpu/shared";
+import { BaseService, type ServiceResult } from "@dpu/shared/dist/fastify.js";
 import { logWarning } from "@dpu/shared/dist/logger.js";
-import type { TidalClient } from "./client.js";
+import type { TidalClient } from "./client";
 
-export class TidalService {
-  private client: TidalClient;
-
-  constructor(client: TidalClient) {
-    this.client = client;
-  }
-
-  async getSongFormatted(): Promise<string> {
-    const song = await this.getSong();
-    if (song) {
+export class TidalService extends BaseService<TidalClient> {
+  async getSongFormatted(): Promise<ServiceResult<string>> {
+    const req = await this.getSong();
+    if (req.successful) {
+      const song = req.result as TidalSong;
       const status = song.status === "playing" ? "▶️" : "⏸️";
-      return `listening to ${song.title} by ${song.artists}. ${status} ${song.current}/${song.duration}. link: ${song.url}`;
+      return this.getSuccessfulResult(
+        `listening to ${song.title} by ${song.artists}. ${status} ${song.current}/${song.duration}. link: ${song.url}`,
+      );
     } else {
-      return `no song found`;
+      return this.getErrorResult(req.result as string);
     }
   }
 
-  async getSong(): Promise<TidalSong | null> {
+  async getSong(): Promise<ServiceResult<TidalSong | string>> {
     try {
-      const response = this.client.get<TidalSong>("current");
+      const response = await this.getClient().get<TidalSong>("current");
 
-      return response;
+      return this.getSuccessfulResult(response);
     } catch {
-      logWarning("error getting song from tidal");
-      return null;
+      const error_message = "error getting song from tidal";
+      logWarning(error_message);
+      return this.getErrorResult(error_message);
     }
   }
 
-  async getVolume(): Promise<TidalVolume | null> {
+  async getVolume(): Promise<ServiceResult<TidalVolume | string>> {
     try {
-      const response = await this.client.get<TidalVolume>("volume");
+      const response = await this.getClient().get<TidalVolume>("volume");
 
-      return response;
+      return this.getSuccessfulResult(response);
     } catch {
-      logWarning("error getting volume from tidal");
-      return null;
+      const error_message = "error getting volume from tidal";
+      logWarning(error_message);
+      return this.getErrorResult(error_message);
     }
   }
 
@@ -45,13 +45,16 @@ export class TidalService {
     return Math.min(Math.max(value, 0), 100);
   }
 
-  async setVolume(argument: string): Promise<TidalVolume | null> {
+  async setVolume(
+    argument: string,
+  ): Promise<ServiceResult<TidalVolume | string>> {
     const value = parseInt(argument, 10);
     // relative
     const adjustMatch = argument.match(/^([+-])(\d+)$/);
     if (adjustMatch) {
-      const volume = await this.getVolume();
-      if (volume) {
+      const req = await this.getVolume();
+      if (req.successful) {
+        const volume = req.result as TidalVolume;
         const wantedVolume = volume.volume + value;
         const clampWantedVolume = this.clamp(wantedVolume);
         return await this.setVolumeToTidal(clampWantedVolume);
@@ -65,19 +68,24 @@ export class TidalService {
       return await this.setVolumeToTidal(clampValue);
     }
 
-    return null;
+    const error_message = "error parsing volume to set";
+    logWarning(error_message);
+    return this.getErrorResult(error_message);
   }
 
-  async setVolumeToTidal(volume: number): Promise<TidalVolume | null> {
+  async setVolumeToTidal(
+    volume: number,
+  ): Promise<ServiceResult<TidalVolume | string>> {
     try {
-      const response = await this.client.post<TidalVolume>("volume", {
+      const response = await this.getClient().post<TidalVolume>("volume", {
         volume,
       });
 
-      return response;
+      return this.getSuccessfulResult(response);
     } catch {
-      logWarning("error setting volume from tidal");
-      return null;
+      const error_message = "error setting volume from tidal";
+      logWarning(error_message);
+      return this.getErrorResult(error_message);
     }
   }
 }