#include <fstream>

#include "mail.hpp"
#include "logger/logger_set.hpp"

namespace smtp::file
{
	Mail::Mail( std::string const& path_file )
			: mPathFile( path_file )
	{
	}

	manage::MailsSet Mail::Read() const
	{
		std::ifstream mail_file{mPathFile, std::fstream::in};
		if( !mail_file.is_open())
		{
			logger::LoggerSet::GetInstance()->LogError( "Unable to open file to read " + mPathFile );
			return {};
		}
		std::string line{};
		manage::MailsSet result;

		while( std::getline( mail_file, line ))
		{
			auto parsed_data = GetMailFromLine( line );
			if( parsed_data )
			{
				result.push_back( *parsed_data );
			}
		}
		mail_file.close();
		return result;
	}

	bool Mail::Write( manage::MailsSet const& data ) const
	{
		std::ofstream mail_file{mPathFile, std::fstream::out | std::fstream::trunc};
		if( !mail_file.is_open())
		{
			logger::LoggerSet::GetInstance()->LogError( "Unable to open file to write " + mPathFile );
			return false;
		}
		for( const auto& pair: data )
		{
			mail_file << pair << "\n";
		}
		mail_file.close();
		return true;
	}

	std::optional < std::string > Mail::GetMailFromLine( std::string const& line ) const
	{
		//TODO registrator if checking parsing
		auto pos = line.find( '@' );
		if( pos == std::string::npos )
		{
			return {};
		}
		return line;
	}

}