Support playlist management

[infodrom/musiikki-web.git] / class / playlists.class.php

diff --git a/class/playlists.class.php b/class/playlists.class.php
new file mode 100644 (file)
index 0000000..2c0d329
--- /dev/null
+++ b/class/playlists.class.php
@@ -0,0 +1,90 @@
+<?php
+
+class Playlists {
+    const EMPTYSTRING = 'not empty';
+
+    public function getList()
+    {
+       $dir = Config::main()->get('media_dir_A') . '/playlists';
+       $list = [];
+
+       foreach (new DirectoryIterator($dir) as $fileInfo) {
+           if ($fileInfo->isDot()) continue;
+           if ($fileInfo->isDir()) continue;
+           if ($fileInfo->getExtension() != 'm3u') continue;
+
+           $lines = preg_split('/\r?\n/', file_get_contents($fileInfo->getPathname()));
+           if ($lines[0] == static::EMPTYSTRING) {
+               $count = 0;
+           } else {
+               $count = count($lines) - 1;
+           }
+
+           $list[] = ['name' => $fileInfo->getBasename('.m3u'), 'count' => $count];
+       }
+
+       usort($list, function($a, $b){return strcmp($a['name'], $b['name']);});
+       return $list;
+    }
+
+    public function getContents($name)
+    {
+       $dir = Config::main()->get('media_dir_A') . '/playlists';
+       $list = [];
+
+       $path = $dir . '/' . $name . '.m3u';
+       if (file_exists($path)) {
+           $content = explode("\n", file_get_contents($path));
+           foreach ($content as $path) {
+               if (empty(trim($path))) continue;
+               if ($path == static::EMPTYSTRING) continue;
+
+               $fname = basename($path);
+
+               if (($pos = strrpos($fname, '.')) > strlen($fname)-10)
+                   $fname = substr($fname, 0, $pos);
+               $list[] = $fname;
+           }       
+       }
+
+       return $list;
+    }
+
+    public function add($name, $path)
+    {
+       $playlist = Config::main()->get('media_dir_A') . '/playlists/' . $name . '.m3u';
+       if (!file_exists($playlist)) return;
+
+       $content = explode("\n", file_get_contents($playlist));
+       $found = false;
+       foreach ($content as $line)
+           if ($line == $path)
+               $found = true;
+
+       if (!$found)
+           $content[] = $path;
+
+       if (($f = fopen($playlist.'.new', 'w')) !== false) {
+           foreach ($content as $line) {
+               if (empty(trim($line))) continue;
+               if ($line == static::EMPTYSTRING) continue;
+               fwrite($f, $line . "\n");
+           }
+           fclose($f);
+           rename($playlist.'.new', $playlist);
+       }
+       
+    }
+
+    public function create($name)
+    {
+       $playlist = Config::main()->get('media_dir_A') . '/playlists/' . $name . '.m3u';
+       if (file_exists($playlist)) return;
+
+       if (($f = fopen($playlist, 'w')) !== false) {
+           fwrite($f, static::EMPTYSTRING . "\n");
+           
+           fclose($f);
+       }
+    }
+}