#include "ui_statuswidget.h"
#include "statuswidget.h"

#include "models/patchdownloader.h"

#include "widgets/mainwindow.h"

#include "constants.h"

#include <QDesktopServices>
#include <QUrl>
#include <QDebug>
#include <QMessageBox>
#include <QRandomGenerator>

StatusWidget::StatusWidget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::StatusWidget)
{
    ui->setupUi(this);
    last_statusbar_update_time_.start();
    ui->galadriel_tooltip_example->hide();
    ui->c_progress_bar->setProgress(100);

    connect(ui->weekly_code_widget, &WeeklyCodeWidget::showCompletedTooltip, this, [this](){setToolTipMessage("Еженедельный код скопирован в буфер обмена.", E_INFO);});
    connect(ui->weekly_code_widget, &WeeklyCodeWidget::showHelpTooltip, this, [this](){setToolTipMessage("Нажмите по еженедельному коду, чтобы скопировать его.", E_INFO);});
    connect(ui->weekly_code_widget, &WeeklyCodeWidget::showNoTooltip, this, [this](){unsetToolTipMessage(E_INFO);});

    connect(ui->news_list, &NewsListWidget::showHelpToolTip, this, [this](){setToolTipMessage("Нажмите на заголовок новости, чтобы открыть её в браузере.", E_INFO);});
    connect(ui->news_list, &NewsListWidget::showNoToolTip, this, [this](){unsetToolTipMessage(E_INFO);});

    connect(ui->server_status_widget, &ServerStatusWidget::showServersTooltip, this, [this](QString message){setToolTipMessage(message, E_INFO);});
    connect(ui->server_status_widget, &ServerStatusWidget::showNoTooltip, this, [this](){unsetToolTipMessage(E_INFO);});

    connect(&PatchDownloader::instance(), &PatchDownloader::started, this, &StatusWidget::onPatchDownloaderStarted);
    connect(&PatchDownloader::instance(), &PatchDownloader::progressChanged, this, &StatusWidget::onPatchDownloaderProgressChanged);
    connect(&PatchDownloader::instance(), &PatchDownloader::finished, this, &StatusWidget::onPatchDownloaderFinished);

    connect(&PatchInstaller::instance(), &PatchInstaller::started, this, &StatusWidget::onPatchInstallerStarted);
    connect(&PatchInstaller::instance(), &PatchInstaller::progressChanged, this, &StatusWidget::onPatchInstallerProgressChanged);
    connect(&PatchInstaller::instance(), &PatchInstaller::finished, this, &StatusWidget::onPatchInstallerFinished);

    connect(&PatchInstaller::instance(), &PatchInstaller::videosDownloadProgressChanged, this, &StatusWidget::onPatchInstallerVideoProgressChanged);

    connect(&PatchInstaller::instance(), &PatchInstaller::successfullyInitialized, this, &StatusWidget::showComponentsStatus);
    connect(&PatchInstaller::instance(), &PatchInstaller::deinitialized, this, &StatusWidget::hideComponentsStatus);

    connect(ui->b_components_status, &TranslationComponents::needToPatch, this, &StatusWidget::onTranslationComponentsNeedToPatch);
    connect(ui->b_components_status, &TranslationComponents::noNeedToPatch, this, &StatusWidget::onTranslationComponentsNoNeedToPatch);

    ui->b_components_status->hide();

    _components_status_opacity_effect = new QGraphicsOpacityEffect();
    _components_status_opacity_animation = new QPropertyAnimation(_components_status_opacity_effect, "opacity");
    _components_status_opacity_animation->setStartValue(0);
    _components_status_opacity_animation->setDuration(1000);

    ui->b_components_status->setGraphicsEffect(_components_status_opacity_effect);
}

StatusWidget::~StatusWidget()
{
    _components_status_opacity_animation->stop();
    _components_status_opacity_animation->deleteLater();
    _components_status_opacity_effect->deleteLater();
    random_tooltip_generator_timer_.stop();
    process_completed_tooltip_hide_timer_.stop();
    delete ui;
}

void StatusWidget::updateFontsSizes()
{
    ui->game_button->setFont(trajan_11pt);
    ui->news_label->setFont(trajan_10pt);
}

void StatusWidget::setToolTipMessage(QString message, StatusWidget::ToolTipState state)
{
    if (state == E_RANDOM) {
        random_tooltip_generator_timer_.start();
    } else {
        random_tooltip_generator_timer_.stop();
    }

    tooltip_messages_[state] = message;
    tooltip_state_ = ToolTipState(int(tooltip_state_) | int(state));

    QString message_id = message;
    if (state == E_PROCESS) {
        message_id = "E_PROCESS";
    }

    if (tooltip_state_ < state * 2) {
        if (!tooltip_widgets_.contains(message_id)) {
            createTooltipMessageWidget(message_id);
        }
        tooltip_widgets_[message_id]->setText(message);
        fadeBetweenToolTips(message_id);
    }
}

void StatusWidget::unsetToolTipMessage(StatusWidget::ToolTipState state)
{
    tooltip_state_ = ToolTipState(int(tooltip_state_) & (~int(state)));

    ToolTipState showing_state = E_RANDOM;

    if (tooltip_state_ & E_INFO) {
        showing_state = E_INFO;
    } else if (tooltip_state_ & E_ERROR) {
        showing_state = E_ERROR;
    } else if (tooltip_state_ & E_PROCESS) {
        showing_state = E_PROCESS;
    }

    QString message_id = tooltip_messages_[showing_state];
    if (showing_state == E_PROCESS) {
        message_id = "E_PROCESS";
    }

    if (showing_state == E_RANDOM) {
        random_tooltip_generator_timer_.start();
    } else {
        random_tooltip_generator_timer_.stop();
    }

    if (!tooltip_widgets_.contains(message_id)) {
        createTooltipMessageWidget(message_id);
    }
    tooltip_widgets_[message_id]->setText(tooltip_messages_[showing_state]);
    fadeBetweenToolTips(message_id);
}

void StatusWidget::onErrorStatusChanged(AppErrorStatus status)
{
    if (status == E_NO_ERRORS) {
        init_error_type_message_ = "";
        unsetToolTipMessage(E_ERROR);
        ui->news_list->updateNewsWidget();
        ui->server_status_widget->updateServerStatus();
        ui->weekly_code_widget->updateWeeklyCodeWidget();
        return;
    }

    error_timeout_message_ = "Повторная попытка инициализации через 10 секунд";
    if (status & E_WRONG_GAME_FOLDER) {
        init_error_type_message_ = "Ошибка инициализации: некорректная папка с игрой!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }

    if (status & E_DAT_FILES_MISSING) {
        init_error_type_message_ = "Ошибка инициализации: отсутствуют файлы данных игры!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }

    if (status & E_WRONG_FILE_PERMISSIONS) {
        init_error_type_message_ = "Ошибка инициализации: недостаточно прав для изменения файлов данных!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }

    if (status & E_CANNOT_ACCESS_DAT_FILES) {
        init_error_type_message_ = "Ошибка инициализации: нет доступа к файлам данных!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }

    if (status & E_DAT_FILE_INCORRECT) {
        init_error_type_message_ = "Ошибка инициализации: формат файла данных устарел или некорректен!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }

    if (status & E_NO_SERVER_CONNECTION) {
        init_error_type_message_ = "Ошибка инициализации: нет связи с сервером Наследия!\n";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
        return;
    }
}

void StatusWidget::onSecondsToNextTryToInitChanged(size_t seconds_elapsed)
{
    if (!init_error_type_message_.isEmpty()) {
        error_timeout_message_ = "Повторная попытка инициализации через " + QString::number(seconds_elapsed) + " секунд";
        setToolTipMessage(init_error_type_message_ + error_timeout_message_, E_ERROR);
    }
}

void StatusWidget::resizeEvent(QResizeEvent *)
{
    double coefficient = window_width / default_window_width;
//    ui->game_button->move(QPoint(820, 460) * coefficient);
//    ui->game_button->resize(QSize(150, 60) * coefficient);
//    ui->progressBar->move(QPoint(320, 480) * coefficient);
//    ui->progressBar->resize(QSize(470, 40) * coefficient);
//    ui->progress_label->move(QPoint(330, 390) * coefficient);
//    ui->progress_label->resize(QSize(380, 90) * coefficient);
//    ui->news_label->move(QPoint(45, 33)* coefficient);
//    ui->news_label->resize(QSize(180, 21) * coefficient);
//    ui->news_scroll_area->move(QPoint(40, 75) * coefficient);
//    ui->news_scroll_area->resize(QSize(240, 440) * coefficient);
//    ui->server_status_widget->move(QPoint(820, 90) * coefficient);
//    ui->server_status_widget->resize(QSize(155, 320) * coefficient);
//    ui->weekly_code_widget->move(QPoint(810, 13) * coefficient);
//    ui->weekly_code_widget->resize(QSize(173, 57) * coefficient);
//    ui->galadriel_widget->move(QPoint(320, 20) * coefficient);
//    ui->galadriel_widget->resize(QSize(531, 461) * coefficient);

//    ui->news_tooltip->move(QPoint(38, 13) * coefficient);
//    ui->news_tooltip->resize(QSize(365, 114) * coefficient);
//    ui->weekly_code_tooltip_1->move(QPoint(38, 13) * coefficient);
//    ui->weekly_code_tooltip_1->resize(QSize(365, 114) * coefficient);
//    ui->weekly_code_tooltip_2->move(QPoint(38, 13) * coefficient);
//    ui->weekly_code_tooltip_2->resize(QSize(365, 114) * coefficient);
//    ui->server_status_tooltip->move(QPoint(38, 13) * coefficient);
//    ui->server_status_tooltip->resize(QSize(365, 114) * coefficient);

//    ui->patches_status->move(QPoint(38, 13) * coefficient);
//    ui->patches_status->resize(QSize(385, 114) * coefficient);

    updateFontsSizes();
}

void StatusWidget::generateRandomTooltipMessage()
{
    quint32 number = QRandomGenerator::system()->generate();

    QVector<QString> messages = {
        "<p style=\"font-size: 22px; \">Atra du evarínya ono varda! Я видела тебя в своём зеркале...</p>",
        "<p style=\"font-size: 22px; \">Опасно ходить в рейды в одиночку! Зачищать инсты лучше в хорошей компании :)</p>",
        "<p style=\"font-size: 22px; \">Какое-то ещё мудрое высказывание в стиле эльфов...</p>",
        "<p style=\"font-size: 22px; \">Мудрые сидят в дискорде Наследия, <a href=\"https://discord.gg/j25MdKR\" style=\"color: yellow\">присоединяйся</a>!</p>",
    };
    setToolTipMessage(messages[number % messages.size()], E_RANDOM);
}

void StatusWidget::fadeBetweenToolTips(QString tooltip_id)
{
    if (tooltip_id == current_tooltip_message_) {
        return;
    }

    QPropertyAnimation* showing_anim = tooltip_animations_[tooltip_id];
    showing_anim->setDirection(QAbstractAnimation::Forward);
    if (showing_anim->state() == QAbstractAnimation::Stopped) {
        showing_anim->start();
    }

    if (tooltip_widgets_.contains(current_tooltip_message_)) {
        QString msg = current_tooltip_message_;
        connect(tooltip_animations_[current_tooltip_message_], &QPropertyAnimation::finished, this, [&, msg](){
            if (tooltip_effects_.contains(msg) && tooltip_effects_[msg]->opacity() == 0) {
                tooltip_widgets_.take(msg)->deleteLater();
                tooltip_effects_.take(msg)->deleteLater();
                tooltip_animations_.take(msg)->deleteLater();
            }
        });

        QPropertyAnimation* hiding_anim = tooltip_animations_[current_tooltip_message_];
        hiding_anim->setDirection(QAbstractAnimation::Backward);
        if (hiding_anim->state() == QAbstractAnimation::Stopped) {
            hiding_anim->start();
        }
    }

    current_tooltip_message_ = tooltip_id;
}

void StatusWidget::onPatchDownloaderStarted() {
    process_completed_tooltip_hide_timer_.stop();
    all_patch_operations_finished_ = false;
    ui->game_button->setEnabled(false);
    setToolTipMessage("Проверка обновлений русификации...", E_PROCESS);
}

void StatusWidget::onPatchDownloaderFinished() {
    all_patch_operations_finished_ = true;
    ui->game_button->setEnabled(true);
    setToolTipMessage("Скачивание данных русификации завершено!", E_PROCESS);
    process_completed_tooltip_hide_timer_.start();
}

void StatusWidget::onPatchDownloaderProgressChanged(Downloader::Status status) {
    double download_percent = status.total_bytes > 0 ? double(status.downloaded_bytes) * 100.0 / double(status.total_bytes) : 100;
    ui->c_progress_bar->setProgress(download_percent);
    if (last_statusbar_update_time_.elapsed() > 450) {
        QString text = "Загрузка данных: " + QString::number(download_percent, 'f', 1) + "% ("
                     + Downloader::getSizeFormatted(status.downloaded_bytes) + "/"
                     + Downloader::getSizeFormatted(status.total_bytes) + ")\n"
                     + "До конца загрузки: " + Downloader::getElapsedTimeFormatted(status.elapsed_time);
        setToolTipMessage(text, E_PROCESS);
        last_statusbar_update_time_.restart();
    }
}

void StatusWidget::onPatchInstallerStarted() {
    process_completed_tooltip_hide_timer_.stop();
    all_patch_operations_finished_ = false;
    ui->game_button->setEnabled(false);
    setToolTipMessage("<p style=\"font-size: 22px; \">Подготовка русификатора...</p>", E_PROCESS);
}

void StatusWidget::onPatchInstallerFinished() {
    all_patch_operations_finished_ = true;
    ui->game_button->setEnabled(true);
    setToolTipMessage("<p style=\"font-size: 22px; \">Все операции выполнены!</p>", E_PROCESS);
    process_completed_tooltip_hide_timer_.start();
}

void StatusWidget::onPatchInstallerProgressChanged(PatchInstaller::Status status) {
    double install_percent = status.total_parts > 0 ? double(status.finished_parts) * 100.0 / double(status.total_parts) : 100;
    ui->c_progress_bar->setProgress(install_percent);
    if (last_statusbar_update_time_.elapsed() > 450 || status.finished_parts == 0) {
        QString text = "Установка русификации: "
                     + QString::number(double(status.finished_parts) * 100.0 / double(status.total_parts), 'f', 1)
                     + "%\n(" + QString::number(status.finished_parts)
                     + " фрагментов из " + QString::number(status.total_parts) + ")";
        setToolTipMessage(text, E_PROCESS);
        last_statusbar_update_time_.restart();
    }
}

void StatusWidget::onPatchInstallerVideoProgressChanged(int finished_videos, int total_videos, Downloader::Status status) {
    if (last_statusbar_update_time_.elapsed() > 450) {
        double download_percent = double(status.downloaded_bytes) * 100.0 / double(status.total_bytes);
        QString text = "Загрузка и установка видеороликов ("
                     + QString::number(finished_videos + 1) + " из " + QString::number(total_videos)
                     + ")\n"
                     + "Загружено: " + QString::number(download_percent, 'f', 1) + "% ("
                     + Downloader::getSizeFormatted(status.downloaded_bytes) + "/"
                     + Downloader::getSizeFormatted(status.total_bytes) + ")";
        setToolTipMessage(text, E_PROCESS);
        last_statusbar_update_time_.restart();
    }
}

void StatusWidget::on_game_button_clicked()
{
}

void StatusWidget::createTooltipMessageWidget(QString tooltip_id)
{
    tooltip_widgets_[tooltip_id] = new QLabel(this);
    tooltip_widgets_[tooltip_id]->setGeometry(ui->galadriel_tooltip_example->geometry());
    tooltip_widgets_[tooltip_id]->setStyleSheet(ui->galadriel_tooltip_example->styleSheet());
    tooltip_widgets_[tooltip_id]->setFont(ui->galadriel_tooltip_example->font());
    tooltip_widgets_[tooltip_id]->setWordWrap(true);
    tooltip_widgets_[tooltip_id]->setOpenExternalLinks(true);

    tooltip_widgets_[tooltip_id]->setAlignment(Qt::AlignHCenter | Qt::AlignBottom);

    tooltip_effects_[tooltip_id] = new QGraphicsOpacityEffect(tooltip_widgets_[tooltip_id]);
    tooltip_effects_[tooltip_id]->setOpacity(0);

    tooltip_animations_[tooltip_id] = new QPropertyAnimation(tooltip_effects_[tooltip_id], "opacity");
    tooltip_animations_[tooltip_id]->setDuration(300);
    tooltip_animations_[tooltip_id]->setStartValue(0);
    tooltip_animations_[tooltip_id]->setEndValue(1);
    tooltip_animations_[tooltip_id]->setDirection(QAbstractAnimation::Forward);

    tooltip_widgets_[tooltip_id]->setGraphicsEffect(tooltip_effects_[tooltip_id]);
    tooltip_widgets_[tooltip_id]->show();
}

void StatusWidget::on_check_for_updates_button_clicked()
{
    QMetaObject::invokeMethod(&PatchDownloader::instance(), &PatchDownloader::startPatchDownloaderChain, Qt::QueuedConnection);
}

void StatusWidget::showComponentsStatus() {
    _components_status_opacity_animation->disconnect();
    ui->b_components_status->show();
    _components_status_opacity_animation->stop();
    _components_status_opacity_animation->setEndValue(1);
    _components_status_opacity_animation->start();
}

void StatusWidget::hideComponentsStatus() {
    if (this->isVisible()) {
        _components_status_opacity_animation->stop();
        _components_status_opacity_animation->setEndValue(0);
        _components_status_opacity_animation->start();
        connect(_components_status_opacity_animation, &QPropertyAnimation::finished, ui->b_components_status, &QWidget::hide);
    }
}

void StatusWidget::onTranslationComponentsNeedToPatch() {
    _need_to_install_patches = true;
    updateButtonStatus();

}

void StatusWidget::onTranslationComponentsNoNeedToPatch() {
    _need_to_install_patches = false;
    updateButtonStatus();
}

void StatusWidget::updateButtonStatus() {
    if (_need_to_update) {
        setToolTipMessage("Доступна новая версия русификации. Нажмите \"Обновить\", чтобы начать загрузку.", ToolTipState::E_INFO);
        ui->game_button->setText("ОБНОВИТЬ");
    } else {
        unsetToolTipMessage(ToolTipState::E_INFO);
        ui->game_button->setText("ИГРАТЬ");
    }

    if (_need_to_install_patches) {
        setToolTipMessage("Нажмите \"Установить\", чтобы начать процесс русификации.", ToolTipState::E_INFO);
        ui->game_button->setText("установить");
    } else {
        unsetToolTipMessage(ToolTipState::E_INFO);
        ui->game_button->setText("ИГРАТЬ");
    }
}