//  SPDX-FileCopyrightText: 2023 Yury Gubich <blue@macaw.me>
//  SPDX-License-Identifier: GPL-3.0-or-later

#include "server.h"

#include "handler/info.h"
#include "handler/env.h"

constexpr uint8_t currentDbVesion = 1;

Server::Server():
    terminating(false),
    requestCount(0),
    serverName(std::nullopt),
    router(),
    db()
{
    std::cout << "Startig pica..." << std::endl;

    db = DBInterface::create(DBInterface::Type::mysql);
    std::cout << "Database type: MySQL" << std::endl;

    db->setCredentials("pica", "pica");
    db->setDatabase("pica");

    db->connect("/run/mysqld/mysqld.sock");
    db->migrate(currentDbVesion);

    router.addRoute(std::make_unique<Handler::Info>());
    router.addRoute(std::make_unique<Handler::Env>());
}

Server::~Server() {}

void Server::run(int socketDescriptor) {
    while (!terminating) {
        std::unique_ptr<Request> request = std::make_unique<Request>();
        bool result = request->wait(socketDescriptor);
        if (!result) {
            std::cerr << "Error accepting a request" << std::endl;
            return;
        }
        handleRequest(std::move(request));
    }
}

void Server::handleRequest(std::unique_ptr<Request> request) {
    ++requestCount;
    if (!serverName) {
        try {
            serverName = request->getServerName();
            std::cout << "received server name " << serverName.value() << std::endl;
        } catch (...) {
            std::cerr << "failed to read server name" << std::endl;
            Response error(*request.get(), Response::Status::internalError);
            error.send();
            return;
        }
    }

    std::string path = request->getPath(serverName.value());
    router.route(path.data(), std::move(request));
}