#include "file_to_struct.hpp"

namespace smtp::converter
{
    general::SettingsFields FileToStruct::Convert( general::SettingsFileDataType const& from ) const
    {
        general::SettingsFields result;

        ApplyAuth( result, from );
        ApplySsl( result, from );
        ApplyUsername( result, from );
        ApplyPassword( result, from );
        ApplyHost( result, from );
        ApplyPort( result, from );

        return result;
    }

    void FileToStruct::ApplyAuth( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "is_need_auth";

        ApplyBool(from, FIELD, result.is_need_auth);
    }

    void FileToStruct::ApplySsl( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "is_need_ssl";

        ApplyBool(from, FIELD, result.is_need_ssl);
    }

    void FileToStruct::ApplyBool( general::SettingsFileDataType const& from, std::string const& search_field, bool& field ) const
    {
        static const std::string TRUE_AS_STRING = "true";
        static const std::string FALSE_AS_STRING = "false";

        auto find = from.find( search_field );
        if( find == from.end() )
        {
            return;
        }
        if( find->second != TRUE_AS_STRING && find->second != FALSE_AS_STRING )
        {
            return;
        }
        field = (find->second == TRUE_AS_STRING);
    }

    void FileToStruct::ApplyUsername( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "username";

        ApplyString( from, FIELD, result.username );
    }

    void FileToStruct::ApplyPassword( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "password";

        ApplyString( from, FIELD, result.password );
    }

    void FileToStruct::ApplyHost( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "host";

        ApplyString( from, FIELD, result.host );
    }

    void FileToStruct::ApplyPort( general::SettingsFields &result, general::SettingsFileDataType const& from ) const
    {
        static const std::string FIELD = "port";

        ApplyString(from, FIELD, result.port);
    }

    void FileToStruct::ApplyString( general::SettingsFileDataType const& from,  std::string const& search_field, std::string& field ) const
    {
        auto find = from.find( search_field );
        if( find == from.end() )
        {
            return;
        }
        field = find->second;
    }
}