Initial commit

src/DatasetManager.php

@@ -0,0 +1,70 @@
+<?php
+
+namespace NoccyLabs\Dataset;
+
+/**
+ * DatasetManager is the central class of noccylabs/dataset.
+ * 
+ * @author Christopher Vagnetoft <cvagnetoft@gmail.com>
+ * @copyright (c) 2022, NoccyLabs
+ * @package noccylabs/dataset
+ */
+class DatasetManager
+{
+
+
+    private static $datasets = [];
+
+    public function __construct()
+    {
+        if (count(self::$datasets) == 0) {
+            $this->scanForDatasets();
+        }
+    }
+
+    private function scanForDatasets()
+    {
+        $root = $this->determineVendorPath();
+        if (!$root) {
+            // Skip loading if we couldn't determine the root
+            return;
+        }
+
+        $glob = glob($root."/*/*/dataset.json");
+    }
+
+    private function determineVendorPath(): ?string
+    {
+        if (file_exists(__DIR__."/../../../autoload.php")) {
+            // we are installed as a composer package
+            return dirname(__DIR__, 3);
+        }
+        return null;
+    }
+
+    public function registerDataset(Dataset $dataset)
+    {
+        $id = $dataset->getIdentifier();
+        if (array_key_exists($id, self::$datasets)) {
+            // Don't overwrite previously registered datasets. Investigate how
+            // this can be handled better in the future.
+            return;
+        }
+
+        self::$datasets[$id] = $dataset;
+    }
+
+
+
+    /**
+     * 
+     * 
+     * @throws InvalidDatasetException if the dataset can not be opened
+     * @throws UnknownDatasetExcception if the dataset does not exist
+     */
+    public function getDataset(string $identifier): Dataset
+    {
+
+        return self::$datasets[$identifier];
+    }
+}