Merge branch '27-clean-some-code' into 'master'

Resolve "Clean some code"

Closes #27

See merge request !21

.editorconfig

+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.md]
+trim_trailing_whitespace = false

spotify/lib.php

 <?php
 
-function generatePlaylistName() {
+function generatePlaylistName()
+{
     $now = new DateTime();
     $name = 'Fresh playlist ['.$now->format('Y-m-d H:i:s').']';
 
     return $name;
 }
 
-function createEmptyPlaylist($api) {
+function createEmptyPlaylist($api)
+{
     $name = generatePlaylistName();
     error_log('Create new playlist "'.$name.'".');
     $playlist = $api->createPlaylist([
@@ -17,7 +19,8 @@ function createEmptyPlaylist($api) {
     return $playlist;
 }
 
-function pickRandomTrackFromArray($recommendedTrackIds, $count = 50) {
+function pickRandomTrackFromArray($recommendedTrackIds, $count = 50)
+{
     $recommendedTrackIds = array_keys($recommendedTrackIds);
     error_log('=> Got '.count($recommendedTrackIds).' unique recommendatations.');
     shuffle($recommendedTrackIds);
@@ -27,7 +30,8 @@ function pickRandomTrackFromArray($recommendedTrackIds, $count = 50) {
     return $pickedTrackIds;
 }
 
-function createPlaylistWithRandomTracks($api, $trackIds, $count = 50) {
+function createPlaylistWithRandomTracks($api, $trackIds, $count = 50)
+{
     $playlist = createEmptyPlaylist($api);
     $pickedTrackIds = pickRandomTrackFromArray($trackIds);
     $api->replacePlaylistTracks($playlist->id, $pickedTrackIds);
@@ -35,14 +39,16 @@ function createPlaylistWithRandomTracks($api, $trackIds, $count = 50) {
     return $api->getPlaylist($playlist->id);
 }
 
-function getCreatedPlaylistInformationMessage($api, $playlist) {
+function getCreatedPlaylistInformationMessage($api, $playlist)
+{
     $link = '<a href="'.$playlist->external_urls->spotify.'">'.$playlist->name.'</a>';
     $message = 'Ok created new playlist with '.count($playlist->tracks->items).' tracks: '.$link;
 
     return $message;
 }
 
-function createDisplayablePlaylist($playlist) {
+function createDisplayablePlaylist($playlist)
+{
     $output = [
         'id' => $playlist->id,
         'name' => $playlist->name,