#include "RegistrationWindow.h"
#include <QVBoxLayout>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QApplication>
#include <QDebug>
#include <QMessageBox>
#include <QThread>
#include <QSettings>

#include "LoaderDialog.h"
#include "dao/SettingsDAO.h"
#include "net/NetworkService.h"

RegistrationWindow::RegistrationWindow(QWidget *parent): QWidget(parent) {
    setWindowTitle("Вход");
    resize(300, 130);

    auto *layout = new QVBoxLayout(this);

    layout->addWidget(new QLabel("Введите ваш идентификатор:"));

    QLineEdit *apiKeyEdit = new QLineEdit();
    apiKeyEdit->setPlaceholderText("Идентификатор");
    layout->addWidget(apiKeyEdit);

    QHBoxLayout *buttonLayout = new QHBoxLayout();

    QPushButton *loginButton = new QPushButton("Войти");
    QPushButton *closeButton = new QPushButton("Закрыть");

    buttonLayout->addWidget(loginButton);
    buttonLayout->addWidget(closeButton);

    layout->addLayout(buttonLayout);

    connect(closeButton, &QPushButton::clicked, qApp, &QApplication::quit);
    connect(loginButton, &QPushButton::clicked, this, [=]() {
        const QString apiKey = apiKeyEdit->text().trimmed();
        if (apiKey.isEmpty()) {
            QMessageBox::warning(this, "Ошибка", "Введите ваш идентификатор");
            return;
        }

        SettingsDAO::set("api_key", apiKey);

        auto *loader = new LoaderDialog(this);
        loader->show();

        auto *thread = new QThread;
        auto *networkService = new NetworkService;
        networkService->moveToThread(thread);

        connect(thread, &QThread::started, networkService, &NetworkService::loginAndSetup);
        connect(networkService, &NetworkService::finished, thread, &QThread::quit);
        connect(networkService, &NetworkService::finished, networkService, &QObject::deleteLater);
        connect(thread, &QThread::finished, thread, &QThread::deleteLater);

        connect(networkService, &NetworkService::finishedWithResult, this, [=](int result) {
            QMetaObject::invokeMethod(this, [=]() {
                loader->close();
                loader->deleteLater();

                if (result == 1) {
                    emit onRegisteredSuccess();
                } else if (result == 0) {
                    SettingsDAO::remove("api_key");
                    QMessageBox::critical(this, "Ошибка входа", "Неверный идентификатор. Проверьте и попробуйте снова.");
                } else {
                    QMessageBox::critical(this, "Ошибка подключения",
                                          "Нет подключения к интернету или сервер не отвечает.\n\nПожалуйста, попробуйте позже.");
                }
            }, Qt::QueuedConnection);
        });
        thread->start();
    });
}