Correctly configure eslint & fix general issues

src/db/lazyKv.ts

@@ -21,14 +21,14 @@ export class lazyKv {
 
   async get<T>(key: string, fallback?: T): Promise<T> {
     const data = await readFile(this.path, 'utf-8');
-    const json = JSON.parse(data);
+    const json = JSON.parse(data) as Record<string, T>;
 
     return json[key] ?? (fallback || null);
   }
 
   async set<T>(key: string, value: T): Promise<void> {
     const data = await readFile(this.path, 'utf-8');
-    const json = JSON.parse(data);
+    const json = JSON.parse(data) as Record<string, T>;
 
     json[key] = value;
 
@@ -37,7 +37,7 @@ export class lazyKv {
 
   async delete(key: string): Promise<void> {
     const data = await readFile(this.path, 'utf-8');
-    const json = JSON.parse(data);
+    const json = JSON.parse(data) as Record<string, unknown>;
 
     delete json[key];
 

src/index.ts

@@ -35,7 +35,7 @@ void (async () => {
 
       const manga = await getManga(mangaId);
       const chapters = await getAllChapters(mangaId);
-      const latestChapter = await getLatestChapter(chapters);
+      const latestChapter = getLatestChapter(chapters);
       const cover = await getCover(manga);
 
       if (lastChapterId !== latestChapter.id) {
@@ -68,6 +68,6 @@ void (async () => {
     }
   };
 
-  setInterval(async () => checkForUpdates(), checkInterval * 1000);
+  setInterval(() => void checkForUpdates(), checkInterval * 1000);
   await checkForUpdates();
 })();

src/mangadex/chapters.ts

@@ -1,12 +1,13 @@
 import axios from 'axios';
 import { sleep } from '../utils/sleep';
 import { Chapter } from '../types';
+import { getUserAgent } from '../utils/user-agent';
 
 export const getAllChapters = async (id: string): Promise<Chapter[]> => {
   let nextPage = false;
   let offset = 0;
 
-  let chapters: Chapter[] = [];
+  const chapters: Chapter[] = [];
   do {
     const response = await axios.get<{
       data: Chapter[];
@@ -19,8 +20,7 @@ export const getAllChapters = async (id: string): Promise<Chapter[]> => {
         offset,
       },
       headers: {
-        'User-Agent':
-          'Personal Chapter Update Tracker (Maintained by: https://pfy.ch)',
+        'User-Agent': getUserAgent(),
       },
     });
 
@@ -41,9 +41,7 @@ export const getAllChapters = async (id: string): Promise<Chapter[]> => {
   return chapters;
 };
 
-export const getLatestChapter = async (
-  chapters: Chapter[],
-): Promise<Chapter> => {
+export const getLatestChapter = (chapters: Chapter[]): Chapter => {
   let latestFoundByChapterNumber = {
     id: '',
     chapter: 0,
@@ -63,5 +61,5 @@ export const getLatestChapter = async (
 
   return chapters.find(
     (chapter) => chapter.id === latestFoundByChapterNumber.id,
-  ) as Chapter;
+  );
 };

src/mangadex/cover.ts

@@ -1,5 +1,6 @@
 import axios from 'axios';
-import { Manga } from './manga';
+import { Manga } from '../types';
+import { getUserAgent } from '../utils/user-agent';
 
 export const getCover = async (manga: Manga): Promise<string> => {
   const coverId = Object.values(manga.relationships).find(
@@ -10,15 +11,13 @@ export const getCover = async (manga: Manga): Promise<string> => {
     return '';
   }
 
-  const response = await axios.get(
-    `https://api.mangadex.org/cover/${coverId}`,
-    {
-      headers: {
-        'User-Agent':
-          'Personal Chapter Update Tracker (Maintained by: https://pfy.ch)',
-      },
+  const response = await axios.get<{
+    data: { attributes: { fileName: string } };
+  }>(`https://api.mangadex.org/cover/${coverId}`, {
+    headers: {
+      'User-Agent': getUserAgent(),
     },
-  );
+  });
 
   return `https://mangadex.org/covers/${manga.id}/${response.data.data.attributes.fileName}`;
 };

src/mangadex/manga.ts

@@ -1,5 +1,6 @@
 import axios from 'axios';
 import { Manga } from '../types';
+import { getUserAgent } from '../utils/user-agent';
 
 export const getManga = async (id: string): Promise<Manga> => {
   const response = await axios.get<{
@@ -9,8 +10,7 @@ export const getManga = async (id: string): Promise<Manga> => {
     total: number;
   }>(`https://api.mangadex.org/manga/${id}`, {
     headers: {
-      'User-Agent':
-        'Personal Chapter Update Tracker (Maintained by: https://pfy.ch)',
+      'User-Agent': getUserAgent(),
     },
   });
 

src/utils/user-agent.ts

@@ -0,0 +1,6 @@
+export const getUserAgent = () => {
+  return (
+    process.env.USER_AGENT ||
+    'Personal Chapter Update Tracker (https://git.pfy.ch/pfych/chapter-tracker)'
+  );
+};

src/utils/webhook.ts

@@ -1,7 +1,6 @@
 /* eslint-disable camelcase */
 import axios from 'axios';
-import { Manga } from '../mangadex/manga';
-import { Chapter } from '../mangadex/chapters';
+import { Chapter, Manga } from '../types';
 
 export const sendWebhook = async (args: {
   webhookUrl: string;