From 856839336ba13a357eb91b2a187e1c145529e23c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E6=9C=9D=E6=99=96?= <huangzhwork@gmail.com>
Date: Wed, 27 Jun 2018 17:45:13 +0800
Subject: [PATCH] Parse namespace to dir path according to composer settings
 (https://github.com/swoft-cloud/swoft-component/pull/103)

* Parse namespace to dir path according to composer settings
* Update ComposerHelper.php
---
 .../src/Bean/Resource/AnnotationResource.php  | 15 ++--
 src/framework/src/Helper/ComposerHelper.php   | 68 +++++++++++++++++++
 2 files changed, 75 insertions(+), 8 deletions(-)
 create mode 100644 src/framework/src/Helper/ComposerHelper.php

diff --git a/src/framework/src/Bean/Resource/AnnotationResource.php b/src/framework/src/Bean/Resource/AnnotationResource.php
index bab52f5ba..2d6d72d66 100644
--- a/src/framework/src/Bean/Resource/AnnotationResource.php
+++ b/src/framework/src/Bean/Resource/AnnotationResource.php
@@ -5,8 +5,7 @@
 use Doctrine\Common\Annotations\AnnotationReader;
 use Doctrine\Common\Annotations\AnnotationRegistry;
 use Swoft\Bean\Wrapper\WrapperInterface;
-use Swoft\Helper\ComponentHelper;
-use Swoft\Helper\JsonHelper;
+use Swoft\Helper\ComposerHelper;
 
 /**
  * Annotation resource
@@ -189,8 +188,6 @@ public function parseAnnotationsData()
     }
 
     /**
-     * 添加扫描namespace
-     *
      * @param array $namespaces
      */
     public function addScanNamespace(array $namespaces)
@@ -200,10 +197,12 @@ public function addScanNamespace(array $namespaces)
                 $this->scanNamespaces[$key] = $namespace;
                 continue;
             }
-
-            $nsPath                           = str_replace("\\", "/", $namespace);
-            $nsPath                           = str_replace('App/', 'app/', $nsPath);
-            $this->scanNamespaces[$namespace] = BASE_PATH . "/" . $nsPath;
+            $nsPath = ComposerHelper::getDirByNamespace($namespace);
+            if (!$nsPath) {
+                $nsPath = str_replace("\\", "/", $namespace);
+                $nsPath = BASE_PATH . "/" . $nsPath;
+            }
+            $this->scanNamespaces[$namespace] = $nsPath;
         }
 
         $this->registerNamespace();
diff --git a/src/framework/src/Helper/ComposerHelper.php b/src/framework/src/Helper/ComposerHelper.php
new file mode 100644
index 000000000..9ccde34b7
--- /dev/null
+++ b/src/framework/src/Helper/ComposerHelper.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Swoft\Helper;
+
+
+use Composer\Autoload\ClassLoader;
+
+class ComposerHelper
+{
+
+    /**
+     * @var ClassLoader|mixed
+     */
+    static $loader;
+
+    /**
+     * @return ClassLoader
+     */
+    public static function getLoader(): ClassLoader
+    {
+        if (! self::$loader) {
+            $loader = self::findLoader();
+            $loader instanceof ClassLoader && self::$loader = $loader;
+        }
+        return self::$loader;
+    }
+
+    /**
+     * @return ClassLoader
+     * @throws \RuntimeException When Composer loader not found
+     */
+    public static function findLoader(): ClassLoader
+    {
+        $composerClass = '';
+        foreach (get_declared_classes() as $declaredClass) {
+            if (StringHelper::startsWith($declaredClass, 'ComposerAutoloaderInit') && method_exists($declaredClass, 'getLoader')) {
+                $composerClass = $declaredClass;
+                break;
+            }
+        }
+        if (! $composerClass) {
+            throw new \RuntimeException('Composer loader not found.');
+        }
+        return $composerClass::getLoader();
+    }
+
+    /**
+     * @param string $namespace
+     * @return string
+     */
+    public static function getDirByNamespace(string $namespace): string
+    {
+        $dir = '';
+        $loader = self::findLoader();
+        $prefixesPsr4 = $loader->getPrefixesPsr4();
+        $maxLength = 0;
+        foreach ($prefixesPsr4 as $prefix => $path) {
+            if (StringHelper::startsWith($namespace, $prefix)) {
+                $strLen = strlen($prefix);
+                if ($strLen > $maxLength) {
+                    $dir = current($path) . DIRECTORY_SEPARATOR . substr($namespace, $strLen);
+                }
+            }
+        }
+        return $dir;
+    }
+
+}