1 files changed, 71 insertions, 0 deletions
diff --git a/src/management/mail.cpp b/src/management/mail.cpp
new file mode 100644
index 0000000..5c3c276
--- /dev/null
+++ b/src/management/mail.cpp
@@ -0,0 +1,71 @@
+#include <algorithm>
+
+#include "mail.hpp"
+
+namespace smtp::manage
+{
+	Mail::Mail( file::Mail const& file_reader )
+			: mFileReader( file_reader )
+	{
+		mMails = mFileReader.Read();
+	}
+
+	MailsSet Mail::GetMailToSend() const
+	{
+		return mMails;
+	}
+
+	bool Mail::AddMailsToSend( MailsSet const& mails_to_add )
+	{
+		auto merged_mails = GetMergedMails( mails_to_add );
+
+		auto result = mFileReader.Write( merged_mails );
+		if( result )
+		{
+			mMails = merged_mails;
+		}
+		return result;
+	}
+
+	bool Mail::DeleteMailToSend( MailsSet const& mail_to_send )
+	{
+		auto mails_to_delete = GetItersectionMails( mail_to_send );
+		auto result_set_after_delete = GetMailsAfterDelete( mails_to_delete );
+		auto result_of_delete = mFileReader.Write( result_set_after_delete );
+		if( result_of_delete )
+		{
+			mMails = result_set_after_delete;
+		}
+		return result_of_delete;
+	}
+
+	MailsSet Mail::GetMergedMails( MailsSet const& mails_to_add )
+	{
+		auto result = mails_to_add;
+		result.merge( mMails );
+		return result;
+	}
+
+	MailsSet Mail::GetItersectionMails( MailsSet const& mail_to_send )
+	{
+		MailsSet result;
+
+		auto sorted_mail_to_send = mail_to_send;
+		sorted_mail_to_send.sort();
+		mMails.sort();
+		std::set_intersection( mMails.cbegin(), mMails.cend(),
+							   sorted_mail_to_send.cbegin(), sorted_mail_to_send.cend(),
+							   std::back_inserter( result ));
+		return result;
+	}
+
+	MailsSet Mail::GetMailsAfterDelete( MailsSet const& result_set_after_delete )
+	{
+		auto result = mMails;
+		for( const auto& element_to_delete: result_set_after_delete )
+		{
+			result.remove( element_to_delete );
+		}
+		return result;
+	}
+}