Fix "yarn lint" & configure eslint for typescript

.eslintrc.js

@@ -13,5 +13,13 @@ module.exports = {
   },
   rules: {
   },
-  ignorePatterns: ['*.d.ts']
+  overrides: [{
+    files: ['*.d.ts'],
+    extends: [
+      'standard-with-typescript'
+    ],
+    parserOptions: {
+      project: 'tsconfig.json'
+    }
+  }]
 }

package.json

@@ -6,14 +6,17 @@
   "license": "MIT",
   "types": "src/index.d.ts",
   "scripts": {
-    "lint": "eslint --ext .js,.ts",
+    "lint": "eslint --ext .js,.d.ts .",
     "example": "node example",
     "profile": "node scripts/profile"
   },
   "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^4.15.2",
+    "@typescript-eslint/parser": "^4.15.2",
     "babel-eslint": "^10.1.0",
     "eslint": "^7.19.0",
     "eslint-config-standard": "^16.0.2",
+    "eslint-config-standard-with-typescript": "^20.0.0",
     "eslint-import-resolver-node": "^0.3.4",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-node": "^11.1.0",

src/api/index.d.ts

@@ -1,2 +1,2 @@
-declare var content: any
+declare const content: any
 export = content

src/profiles/application/index.js

@@ -4,4 +4,4 @@ import a304 from './a304'
 export {
   a297,
   a304
-}
+}

src/profiles/index.d.ts

@@ -1,5 +1,5 @@
-type Locale = { languages?: string, locale?: string, acceptLanguages?: string }
-type Application = {
+interface Locale { languages?: string, locale?: string, acceptLanguages?: string }
+interface Application {
   apiRoot?: string
   userAgent?: string
   userAgentStatic?: string
@@ -14,9 +14,9 @@ type Application = {
 }
 
 type Profile = Application & Locale & {
-  token?: string,
-  userId?: string,
-  deviceId?: string,
+  token?: string
+  userId?: string
+  deviceId?: string
   fetchOptions?: any
 }
 

src/structures/agent.d.ts

@@ -1,4 +1,5 @@
-import fetch  from "cross-fetch"
-import { Profile } from "../profiles"
+import fetch from 'cross-fetch'
+import { Profile } from '../profiles'
 
-export default function agent(url: string, options: any, customs: Profile): ReturnType<typeof fetch>
+declare function agent (url: string, options: any, customs: Profile): ReturnType<typeof fetch>
+export default agent

src/structures/client.d.ts

@@ -1,8 +1,8 @@
-import { Profile } from "../profiles";
+import { Profile } from '../profiles'
 
-type ClubhouseApiResult<T> = ({ success: true } & T) |
-  { success: false, error_message: string }
+type ClubhouseApiResult<T> = ({ success: true } & T) | { success: false, error_message: string }
 
+// eslint-disable-next-line @typescript-eslint/no-extraneous-class
 export declare class Client {
   constructor (options: { profile: Profile })
   [k: string]: <T>(...params: any) => Promise<ClubhouseApiResult<T>>

tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "lib": [
+      "ESNext"
+    ],
+    "strictNullChecks": true
+  }
+}