Merge branch 'develop'

www/index.php

@@ -1,10 +1,48 @@
 <?php
 
-$version = explode('?', explode('/', $_SERVER['REQUEST_URI'])[1])[0];
-$route = __DIR__ . '/../src/' . $version . '/route.php';
+$requestedVersion = explode('?', explode('/', $_SERVER['REQUEST_URI'])[1])[0];
+$src  = __DIR__ . '/../src/';
 
-if (is_readable($route)) {
-    require_once $route;
-} else {
-    echo 'Invalid version. Try `/latest`';
+// Try direct route with the requested version
+if (!empty($requestedVersion)) {
+    $route = $src . $requestedVersion . '/route.php';
+    if (is_readable($route)) {
+        require_once $route;
+        die;
+    }
 }
+
+// Loop through these `src` folder and look for folder names which would be an indicative
+// of which versions available currently
+$availableVersions = [];
+foreach (scandir($src) as $result) {
+    if ($result === '.' or $result === '..') continue;
+    if (is_dir($src . '/' . $result)) {
+        $availableVersions[] = $result;
+    }
+}
+
+// Try to look if we have `rc` tags for the requested version (naive implementation)
+// This should only be used in staging. ie. look for `v0.1.0-rc.3` for `v0.1.0`
+if (!empty($requestedVersion)) {
+    // Reverse sort versions array so the latest version would stay top of the array
+    // Then, do a simple string matching to grab be first one
+    rsort($availableVersions, SORT_STRING);
+    foreach ($availableVersions as $version) {
+        $containsRc = strpos($version, '-rc.') !== false;
+        $firstPartEqualsToRequestedVersion = explode('-', $version)[0] === $requestedVersion;
+        if ($containsRc && $firstPartEqualsToRequestedVersion) {
+            $route = $src . $version . '/route.php';
+            if (is_readable($route)) {
+                require_once $route;
+                die;
+            }
+        }
+    }
+}
+
+echo json_encode([
+    'message' => 'Invalid version. Try `latest` or other available versions',
+    'versions' => $availableVersions
+]);
+die;