Fix: Linter warnings (#137)

* Automaticly fixable eslint issues, mostly 3 -> 2 space indentation

* fix: updated plex_userid to camelcase

* Linted and some consistency refactor on middleware

* eslint uses ecmaversion 2020 & allow empty catch rule

* Started linting source files

* Fixed eslint errors & improved a lot of error handling

* Set 2 eslint rules as warning temporarly

src/request/utils.js

@@ -1,34 +1,48 @@
 // TODO : test title and date are valid matches to columns in the database
-const validSortParams = ['title', 'date']
-const validSortDirs = ['asc', 'desc']
-const validFilterParams = ['movie', 'show', 'seeding', 'downloading', 'paused', 'finished', 'downloaded']
+const validSortParams = ["title", "date"];
+const validSortDirs = ["asc", "desc"];
+const validFilterParams = [
+  "movie",
+  "show",
+  "seeding",
+  "downloading",
+  "paused",
+  "finished",
+  "downloaded"
+];
 
 function validSort(by, direction) {
   return new Promise((resolve, reject) => {
     if (by === undefined) {
-      resolve()
+      resolve();
     }
 
     if (validSortParams.includes(by) && validSortDirs.includes(direction)) {
-      resolve()
+      resolve();
     } else {
-      reject(new Error(`invalid sort parameter, must be of: ${validSortParams} with optional sort directions: ${validSortDirs} appended with ':'`))
+      reject(
+        new Error(
+          `invalid sort parameter, must be of: ${validSortParams} with optional sort directions: ${validSortDirs} appended with ':'`
+        )
+      );
     }
   });
 }
 
-function validFilter(filter_param) {
+function validFilter(filterParam) {
   return new Promise((resolve, reject) => {
-     if (filter_param === undefined) {
-      resolve()
+    if (filterParam === undefined) {
+      resolve();
     }
 
-    if (filter_param && validFilterParams.includes(filter_param)) {
-      resolve()
+    if (filterParam && validFilterParams.includes(filterParam)) {
+      resolve();
     } else {
-      reject(new Error(`filter parameteres must be of type: ${validFilterParams}`))
+      reject(
+        new Error(`filter parameteres must be of type: ${validFilterParams}`)
+      );
     }
   });
 }
 
-module.exports = { validSort, validFilter }
+module.exports = { validSort, validFilter };