added session to prevent repeated API calls and allow data to be toggled between core and explore.

music/explore.php

@@ -3,51 +3,14 @@ require_once 'vendor/autoload.php';
 
 $dotenv = Dotenv\Dotenv::createImmutable(__DIR__);
 $dotenv->safeLoad();
-$html = '';
 
+session_start();
 $client_id = $_ENV['SPOTIFY_CLIENT_ID'];
 $client_secret = $_ENV['SPOTIFY_CLIENT_SECRET'];
 $auth_code = $_GET['code'];
 
 $client_credentials = get_client_credentials($client_id, $client_secret);
 
-// TODO: Dynamically retrieve top 10 albums from Spotify API
-// TODO: Implement server-side caching for faster load times.
-$albums = [
-    '2FQieUp8BxPN7OR8fE76TE',
-    '5mUo2e4QpUA7NJl2t51uFu',
-    '7ycBtnsMtyVbbwTfJwRjSP',
-    '2ZytN2cY4Zjrr9ukb2rqTP',
-    '4ZDBQSIDIZRUBOG2OHcN3T',
-    '1FHREwXgTQvqiG8q5KlRzc',
-    '1MmVkhiwTH0BkNOU3nw5d3',
-    '79dL7FLiJFOO0EoehUHQBv',
-    '35qVMfUfBN6q2xzm9rZn5a',
-    '2eQMC9nJE3f3hCNKlYYHL1'
-];
-
-shuffle($albums);
-
-$content = '';
-foreach ($albums as $album_id) {
-    $data = get_album($client_credentials, $album_id);
-    $content = $content . '<tr>
-    <td><img src="' . $data['images'][0]['url'] . '" /></td>
-    <td>' . $data['name'] . '</td>
-    <td>' . $data['artists'][0]['name'] . '</td>
-    <td><a href="' . $data['external_urls']['spotify'] . '" target="_blank">Spotify</a></td>
-    </tr>';
-}
-
-$html = '
-<table>
-<tr>
-<th>Art</th>
-<th>Name</th>
-<th>Artist</th>
-<th>Spotify</th>
-</tr>' . $content . '</table>';
-
 function get_client_credentials($client_id, $client_secret)
 {
     $url = 'https://accounts.spotify.com/api/token';
@@ -173,6 +136,7 @@ function get_albums($auth_code, $client_id, $client_secret)
     curl_close($ch);
 
     $song_data = [];
+    if ($_SESSION['data'] == null) {
         foreach ($top_songs as $song) {
             $song_data[] = array(
                 'image' => $song['album']['images'][0]['url'],
@@ -184,6 +148,12 @@ function get_albums($auth_code, $client_id, $client_secret)
             );
         }
 
+        echo "saving data to $_SESSION";
+        $_SESSION['data'] = $song_data;
+    } else {
+        $song_data = $_SESSION['data'];
+    }
+
     foreach ($song_data as $s) {
         echo '
             <img src="' . $s['image'] . '">
@@ -196,5 +166,4 @@ function get_albums($auth_code, $client_id, $client_secret)
 }
 
 get_albums($auth_code, $client_id, $client_secret);
-// echo $html;
 ?>