#include <expected>
#include <string>
#include <cstring>

#include <tservice.hpp>
#include <uxlogger.hpp>
#include <srvconfig.hpp>

std::expected<void, std::string> Run() {
        ServConfig config;

        auto readRes = config.Read("helmetsrv.conf");
        if (!readRes) {
                return std::unexpected("Read config error: " + readRes.error());
        }
        auto validateRes = config.Validate();
        if (!validateRes) {
                return std::unexpected("Validate config error: " + validateRes.error());
        }
        auto listport = config.Listenport();
        auto localnets = config.Localnets();
        auto tunnelnet = config.Tunnelnet();
        TunService service(listport, tunnelnet, localnets);
        auto bindRes = service.Bind();
        if (!bindRes) {
                return std::unexpected("Bind error: " + bindRes.error());
        }
        uxlogger.Info(std::format("Listening on port {}", listport));
        auto listenRes = service.Listen();
        if (!listenRes) {
                return std::unexpected("Listen error: " + listenRes.error());
        }
        return {};
}

int main(int argc, char** argv) {
        auto runRes = Run();
        if (!runRes) {
                uxlogger.Log(runRes.error());
                return 1;
        }
        return 0;
}