// Copyright (c) 2017-2020, Mudita Sp. z.o.o. All rights reserved.
// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md

#include "InputEvent.hpp"
#include "gui/widgets/BottomBar.hpp"
#include "gui/widgets/TopBar.hpp"
#include "GuiTimer.hpp"
#include "log/log.hpp"

// module-utils
#include <i18n/i18n.hpp>

#include "PowerOffWindow.hpp"
#include "../ApplicationDesktop.hpp"

// services
#include <service-appmgr/model/ApplicationManager.hpp>

#include "service-cellular/ServiceCellular.hpp"
#include <Style.hpp>

namespace gui
{

    PowerOffWindow::PowerOffWindow(app::Application *app) : AppWindow(app, app::window::name::desktop_poweroff)
    {
        buildInterface();
    }

    void PowerOffWindow::rebuild()
    {
        // find which widget has focus
        uint32_t index = 0;
        for (uint32_t i = 0; i < selectionLabels.size(); i++)
            if (selectionLabels[i] == getFocusItem()) {
                index = i;
                break;
            }

        destroyInterface();
        buildInterface();
        setFocusItem(selectionLabels[index]);
    }
    void PowerOffWindow::buildInterface()
    {
        AppWindow::buildInterface();
        bottomBar->setActive(BottomBar::Side::CENTER, true);
        bottomBar->setActive(BottomBar::Side::RIGHT, true);
        bottomBar->setText(BottomBar::Side::CENTER, utils::localize.get(style::strings::common::confirm));
        bottomBar->setText(BottomBar::Side::RIGHT, utils::localize.get(style::strings::common::back));

        powerImage     = new gui::Image(this, 177, 132, 0, 0, "pin_lock_info");
        powerDownImage = new gui::Image(this, 0, 0, 0, 0, "logo");
        powerDownImage->setVisible(false);

        // title label
        titleLabel = new gui::Label(this, 0, 60, 480, 40);
        titleLabel->setFilled(false);
        titleLabel->setBorderColor(gui::ColorFullBlack);
        titleLabel->setFont(style::header::font::title);
        titleLabel->setText(utils::localize.get("app_desktop_poweroff_title"));
        titleLabel->setEdges(RectangleEdge::None);
        titleLabel->setAlignment(gui::Alignment(gui::Alignment::Horizontal::Center, gui::Alignment::Vertical::Bottom));

        // label with question for powering down
        infoLabel = new gui::Label(this, 0, 294, 480, 30);
        infoLabel->setFilled(false);
        infoLabel->setBorderColor(gui::ColorNoColor);
        infoLabel->setFont(style::window::font::medium);
        infoLabel->setAlignment(gui::Alignment(gui::Alignment::Horizontal::Center, gui::Alignment::Vertical::Bottom));
        infoLabel->setText(utils::localize.get("app_desktop_poweroff_question"));

        uint32_t pinLabelX = 46;
        uint32_t pinLabelY = 350;
        for (uint32_t i = 0; i < 4; i++) {
            gui::Label *label = new gui::Label(this, pinLabelX, pinLabelY, 193, 75);
            label->setFilled(false);
            label->setBorderColor(gui::ColorFullBlack);
            label->setPenWidth(0);
            label->setPenFocusWidth(2);
            label->setRadius(5);
            label->setFont(style::window::font::medium);
            label->setEdges(RectangleEdge::All);
            label->setAlignment(gui::Alignment(gui::Alignment::Horizontal::Center, gui::Alignment::Vertical::Center));
            selectionLabels.push_back(label);
            pinLabelX += 193;
        }

        selectionLabels[0]->setText(utils::localize.get(style::strings::common::no));
        selectionLabels[1]->setText(utils::localize.get(style::strings::common::yes));

        pinLabelX = 46;
        pinLabelY += 75;
        eventMgrLabel = new gui::Label(this, pinLabelX, pinLabelY, 193 * 2, 75);
        eventMgrLabel->setFilled(false);
        eventMgrLabel->setBorderColor(gui::ColorFullBlack);
        eventMgrLabel->setPenWidth(0);
        eventMgrLabel->setPenFocusWidth(2);
        eventMgrLabel->setRadius(5);
        eventMgrLabel->setFont(style::window::font::bigbold);
        eventMgrLabel->setText("TURN PWR MGR OFF");
        eventMgrLabel->setEdges(RectangleEdge::All);
        eventMgrLabel->setAlignment(
            gui::Alignment(gui::Alignment::Horizontal::Center, gui::Alignment::Vertical::Center));

        // define navigation between labels
        selectionLabels[0]->setNavigationItem(NavigationDirection::LEFT, selectionLabels[1]);
        selectionLabels[0]->setNavigationItem(NavigationDirection::RIGHT, selectionLabels[1]);
        selectionLabels[0]->setNavigationItem(NavigationDirection::DOWN, eventMgrLabel);

        selectionLabels[1]->setNavigationItem(NavigationDirection::LEFT, selectionLabels[0]);
        selectionLabels[1]->setNavigationItem(NavigationDirection::RIGHT, selectionLabels[0]);
        selectionLabels[1]->setNavigationItem(NavigationDirection::DOWN, eventMgrLabel);

        eventMgrLabel->setNavigationItem(NavigationDirection::UP, selectionLabels[0]);

        // callbacks for getting focus
        selectionLabels[0]->focusChangedCallback = [=](gui::Item &item) {
            if (item.focus)
                this->state = State::Return;
            return true;
        };

        selectionLabels[1]->focusChangedCallback = [=](gui::Item &item) {
            if (item.focus)
                this->state = State::PowerDown;
            return true;
        };

        selectionLabels[1]->activatedCallback = [=](gui::Item &item) {
            LOG_INFO("Closing system");
            application->setShutdownFlag();

            bottomBar->setVisible(false);
            topBar->setVisible(false);
            selectionLabels[0]->setVisible(false);
            selectionLabels[1]->setVisible(false);
            eventMgrLabel->setVisible(false);
            powerImage->setVisible(false);
            powerDownImage->setVisible(true);
            titleLabel->setVisible(false);
            infoLabel->setVisible(false);

            application->refreshWindow(RefreshModes::GUI_REFRESH_DEEP);
            scheduleSystemShutdown();
            return true;
        };

        eventMgrLabel->activatedCallback = [=](gui::Item &item) {
            static bool state = false;
            if (state == false) {
                LOG_INFO("SUSPEND SYSTEM");
                state = true;
            }
            else {
                LOG_INFO("RESUME SYSTEM");
                state = false;
            }
            return true;
        };
    }

    // Temporary solution for shutting down the system.
    // The former solution removed from service-gui during its refactor.
    // To be reimplemented in SystemManager in upcoming commits.
    void PowerOffWindow::scheduleSystemShutdown()
    {
        constexpr auto SystemShutdownDelayInMs = 500;
        auto powerOffTimer                     = std::make_unique<app::GuiTimer>("PowerOffTimer", application);
        powerOffTimer->setInterval(SystemShutdownDelayInMs);
        timerCallback = [this](Item &, Timer &timer) {
            detachTimer(timer);
            sys::SystemManager::CloseSystem(application);
            return true;
        };
        powerOffTimer->start();
        application->connect(std::move(powerOffTimer), this);
    }

    void PowerOffWindow::destroyInterface()
    {
        erase();
        invalidate();
    }

    void PowerOffWindow::invalidate() noexcept
    {
        titleLabel     = nullptr;
        infoLabel      = nullptr;
        eventMgrLabel  = nullptr;
        powerImage     = nullptr;
        powerDownImage = nullptr;
        selectionLabels.clear();
    }

    void PowerOffWindow::onBeforeShow(ShowMode mode, SwitchData *data)
    {
        // on entering screen always set default result as returning to home screen and set focus to "No" label
        state = State::Return;
        setFocusItem(selectionLabels[0]);
    }

    bool PowerOffWindow::onInput(const InputEvent &inputEvent)
    {
        // check if any of the lower inheritance onInput methods catch the event
        if (AppWindow::onInput(inputEvent)) {
            return true;
        }

        // process only short press, consume rest
        if (inputEvent.state != gui::InputEvent::State::keyReleasedShort)
            return true;

        // if enter was pressed check state and power down or return to main desktop's window
        if (inputEvent.keyCode == KeyCode::KEY_ENTER) {
            if (state != State::PowerDown) {
                application->switchWindow("MainWindow");
            }
        }

        return false;
    }

} /* namespace gui */