1 files changed, 73 insertions, 0 deletions
diff --git a/library/Director/Application/DependencyChecker.php b/library/Director/Application/DependencyChecker.php
new file mode 100644
index 0000000..d726b0b
--- /dev/null
+++ b/library/Director/Application/DependencyChecker.php
@@ -0,0 +1,73 @@
+<?php
+
+namespace Icinga\Module\Director\Application;
+
+use Icinga\Application\ApplicationBootstrap;
+use Icinga\Application\Modules\Module;
+use Icinga\Application\Version;
+
+class DependencyChecker
+{
+    /** @var ApplicationBootstrap */
+    protected $app;
+
+    /** @var \Icinga\Application\Modules\Manager */
+    protected $modules;
+
+    public function __construct(ApplicationBootstrap $app)
+    {
+        $this->app = $app;
+        $this->modules = $app->getModuleManager();
+    }
+
+    /**
+     * @param Module $module
+     * @return Dependency[]
+     */
+    public function getDependencies(Module $module)
+    {
+        $dependencies = [];
+        $isV290 = version_compare(Version::VERSION, '2.9.0', '>=');
+        foreach ($module->getDependencies() as $moduleName => $required) {
+            if ($isV290 && in_array($moduleName, ['ipl', 'reactbundle'], true)) {
+                continue;
+            }
+            $dependency = new Dependency($moduleName, $required);
+            $dependency->setEnabled($this->modules->hasEnabled($moduleName));
+            if ($this->modules->hasInstalled($moduleName)) {
+                $dependency->setInstalledVersion($this->modules->getModule($moduleName, false)->getVersion());
+            }
+            $dependencies[] = $dependency;
+        }
+        if ($isV290) {
+            $libs = $this->app->getLibraries();
+            foreach ($module->getRequiredLibraries() as $libraryName => $required) {
+                $dependency = new Dependency($libraryName, $required);
+                if ($libs->has($libraryName)) {
+                    $dependency->setInstalledVersion($libs->get($libraryName)->getVersion());
+                    $dependency->setEnabled();
+                }
+                $dependencies[] = $dependency;
+            }
+        }
+
+        return $dependencies;
+    }
+
+    //     if (version_compare(Version::VERSION, '2.9.0', 'ge')) {
+    //    }
+    /**
+     * @param Module $module
+     * @return bool
+     */
+    public function satisfiesDependencies(Module $module)
+    {
+        foreach ($this->getDependencies($module) as $dependency) {
+            if (! $dependency->isSatisfied()) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}