From b2ecce5076bfe366f589dfadf5bb07c50c076f62 Mon Sep 17 00:00:00 2001
From: Yao Sun <yaosun@microsoft.com>
Date: Thu, 24 Feb 2022 14:11:01 -0800
Subject: [PATCH] applicable installer

---
 src/AppInstallerCLICore/Workflows/WorkflowBase.cpp   |  2 +-
 .../PackageManager.idl                               |  6 ++++++
 .../PackageVersionInfo.cpp                           | 12 ++++++++++++
 .../PackageVersionInfo.h                             |  4 +++-
 4 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/src/AppInstallerCLICore/Workflows/WorkflowBase.cpp b/src/AppInstallerCLICore/Workflows/WorkflowBase.cpp
index 75b0054fba..084ca69880 100644
--- a/src/AppInstallerCLICore/Workflows/WorkflowBase.cpp
+++ b/src/AppInstallerCLICore/Workflows/WorkflowBase.cpp
@@ -974,7 +974,7 @@ namespace AppInstaller::CLI::Workflow
         bool isUpdate = WI_IsFlagSet(context.GetFlags(), Execution::ContextFlag::InstallerExecutionUseUpdate);
 
         IPackageVersion::Metadata installationMetadata;
-        
+
         if (isUpdate)
         {
             installationMetadata = context.Get<Execution::Data::InstalledPackageVersion>()->GetMetadata();
diff --git a/src/Microsoft.Management.Deployment/PackageManager.idl b/src/Microsoft.Management.Deployment/PackageManager.idl
index 4023837967..c9888a020e 100644
--- a/src/Microsoft.Management.Deployment/PackageManager.idl
+++ b/src/Microsoft.Management.Deployment/PackageManager.idl
@@ -206,6 +206,12 @@ namespace Microsoft.Management.Deployment
             CompareResult CompareToVersion(String versionString);
         }
 
+        [contract(Microsoft.Management.Deployment.WindowsPackageManagerContract, 4)]
+        {
+            /// Checks if this package version has at least one applicable installer.
+            Boolean HasApplicableInstaller { get; };
+        }
+
         /// DESIGN NOTE:
         /// GetManifest from IPackageVersion in winget/RepositorySearch is not implemented in V1. That class has 
         /// a lot of fields and no one requesting it.
diff --git a/src/Microsoft.Management.Deployment/PackageVersionInfo.cpp b/src/Microsoft.Management.Deployment/PackageVersionInfo.cpp
index c38f56a951..a2e4812cc2 100644
--- a/src/Microsoft.Management.Deployment/PackageVersionInfo.cpp
+++ b/src/Microsoft.Management.Deployment/PackageVersionInfo.cpp
@@ -8,7 +8,10 @@
 #include "PackageCatalogInfo.h"
 #include "PackageCatalog.h"
 #include "CatalogPackage.h"
+#include "ComContext.h"
 #include "Workflows/WorkflowBase.h"
+#include "Workflows/ManifestComparator.h"
+#include "winget/RepositorySearch.h"
 #include "AppInstallerVersions.h"
 #include "Converters.h"
 #include <wil\cppwinrt_wrl.h>
@@ -112,6 +115,15 @@ namespace winrt::Microsoft::Management::Deployment::implementation
             return CompareResult::Equal;
         }
     }
+    bool PackageVersionInfo::HasApplicableInstaller()
+    {
+        AppInstaller::CLI::Execution::COMContext context;
+        AppInstaller::Repository::IPackageVersion::Metadata installationMetadata;
+        AppInstaller::CLI::Workflow::ManifestComparator manifestComparator{ context, installationMetadata };
+        AppInstaller::Manifest::Manifest manifest = m_packageVersion->GetManifest();
+        auto result = manifestComparator.GetPreferredInstaller(manifest);
+        return result.installer.has_value();
+    }
     std::shared_ptr<::AppInstaller::Repository::IPackageVersion> PackageVersionInfo::GetRepositoryPackageVersion()
     { 
         return m_packageVersion; 
diff --git a/src/Microsoft.Management.Deployment/PackageVersionInfo.h b/src/Microsoft.Management.Deployment/PackageVersionInfo.h
index d646498ce1..8d7c5e189f 100644
--- a/src/Microsoft.Management.Deployment/PackageVersionInfo.h
+++ b/src/Microsoft.Management.Deployment/PackageVersionInfo.h
@@ -23,7 +23,9 @@ namespace winrt::Microsoft::Management::Deployment::implementation
         winrt::Windows::Foundation::Collections::IVectorView<hstring> ProductCodes();
         winrt::Microsoft::Management::Deployment::PackageCatalog PackageCatalog();
         winrt::Microsoft::Management::Deployment::CompareResult CompareToVersion(hstring versionString);
-        
+        // Contract version 4
+        bool HasApplicableInstaller();
+
 #if !defined(INCLUDE_ONLY_INTERFACE_METHODS)
     private:
         winrt::Microsoft::Management::Deployment::PackageCatalog m_packageCatalog{ nullptr };