Add DownloaderFactory class

Author: adazem009

src/internal/CMakeLists.txt

@@ -9,12 +9,15 @@ target_sources(scratchcpp
     projecturl.cpp
     projecturl.h
     idownloader.h
+    idownloaderfactory.h
 )
 
 if (LIBSCRATCHCPP_NETWORK_SUPPORT)
     target_sources(scratchcpp
       PRIVATE
         downloader.cpp
 	downloader.h
+	downloaderfactory.cpp
+	downloaderfactory.h
     )
 endif()

src/internal/downloaderfactory.cpp

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#include "downloaderfactory.h"
+#include "downloader.h"
+
+using namespace libscratchcpp;
+
+std::shared_ptr<DownloaderFactory> DownloaderFactory::m_instance = std::make_shared<DownloaderFactory>();
+
+DownloaderFactory::DownloaderFactory()
+{
+}
+
+std::shared_ptr<DownloaderFactory> DownloaderFactory::instance()
+{
+    return m_instance;
+}
+
+std::shared_ptr<IDownloader> DownloaderFactory::create() const
+{
+    return std::make_shared<Downloader>();
+}

src/internal/downloaderfactory.h

@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include "idownloaderfactory.h"
+
+namespace libscratchcpp
+{
+
+class DownloaderFactory : public IDownloaderFactory
+{
+    public:
+        DownloaderFactory();
+
+        static std::shared_ptr<DownloaderFactory> instance();
+        std::shared_ptr<IDownloader> create() const override;
+
+    private:
+        static std::shared_ptr<DownloaderFactory> m_instance;
+};
+
+} // namespace libscratchcpp

src/internal/idownloaderfactory.h

@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: Apache-2.0
+
+#pragma once
+
+#include <memory>
+
+namespace libscratchcpp
+{
+
+class IDownloader;
+
+class IDownloaderFactory
+{
+    public:
+        virtual ~IDownloaderFactory() { }
+
+        virtual std::shared_ptr<IDownloader> create() const = 0;
+};
+
+} // namespace libscratchcpp

test/network/CMakeLists.txt

@@ -11,3 +11,20 @@ target_link_libraries(
 )
 
 gtest_discover_tests(projecturl_test)
+
+if (LIBSCRATCHCPP_NETWORK_SUPPORT)
+    # downloaderfactory_test
+    add_executable(
+	downloaderfactory_test
+	downloaderfactory_test.cpp
+    )
+
+    target_link_libraries(
+	downloaderfactory_test
+	GTest::gtest_main
+	scratchcpp
+	cpr::cpr
+    )
+
+    gtest_discover_tests(downloaderfactory_test)
+endif()

test/network/downloaderfactory_test.cpp

@@ -0,0 +1,14 @@
+#include <internal/downloaderfactory.h>
+#include <internal/downloader.h>
+
+#include "../common.h"
+
+using namespace libscratchcpp;
+
+TEST(DownloaderFactoryTest, Create)
+{
+    auto factory = DownloaderFactory::instance();
+    std::shared_ptr<IDownloader> downloader = factory->create();
+    ASSERT_TRUE(downloader);
+    ASSERT_TRUE(std::dynamic_pointer_cast<Downloader>(downloader));
+}