/*
    Copyright (C) 2014 by Project Tox <https://tox.im>

    This file is part of qTox, a Qt-based graphical interface for Tox.

    This program is libre software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

    See the COPYING file for more details.
*/

#include "groupwidget.h"
#include "grouplist.h"
#include "group.h"
#include "misc/settings.h"
#include "widget/form/groupchatform.h"
#include "widget/maskablepixmapwidget.h"
#include "style.h"
#include <QPalette>
#include <QMenu>
#include <QContextMenuEvent>

#include "ui_mainwindow.h"

GroupWidget::GroupWidget(int GroupId, QString Name)
    : groupId{GroupId}
{
    setMouseTracking(true);
    setAutoFillBackground(true);
    setLayout(&layout);
    setFixedHeight(55);
    layout.setSpacing(0);
    layout.setMargin(0);
    textLayout.setSpacing(0);
    textLayout.setMargin(0);
    setLayoutDirection(Qt::LeftToRight); // parent might have set Qt::RightToLeft

    avatar = new MaskablePixmapWidget(this, QSize(40,40), ":/img/avatar_mask.png");
    avatar->setPixmap(QPixmap(":img/group.png"), Qt::transparent);

    statusPic.setPixmap(QPixmap(":img/status/dot_online.png"));

    // name
    QPalette pal2;
    pal2.setColor(QPalette::WindowText, Style::getColor(Style::White));
    name.setPalette(pal2);
    name.setText(Name);
    name.setFont(Style::getFont(Style::Big));

    // status
    QPalette pal;
    pal.setColor(QPalette::WindowText, Style::getColor(Style::LightGrey));
    nusers.setPalette(pal);
    nusers.setFont(Style::getFont(Style::Medium));

    // background
    QPalette pal3;
    pal3.setColor(QPalette::Background, Style::getColor(Style::MediumGrey));
    this->setPalette(pal3);

    Group* g = GroupList::findGroup(groupId);
    if (g)
        nusers.setText(GroupWidget::tr("%1 users in chat").arg(g->peers.size()));
    else
        nusers.setText(GroupWidget::tr("0 users in chat"));

    textLayout.addStretch();
    textLayout.addWidget(&name);
    textLayout.addWidget(&nusers);
    textLayout.addStretch();

    layout.addSpacing(20);
    layout.addWidget(avatar);
    layout.addSpacing(10);
    layout.addLayout(&textLayout);
    layout.addStretch();
    layout.addSpacing(10);
    layout.addWidget(&statusPic);
    layout.addSpacing(10);
}

void GroupWidget::contextMenuEvent(QContextMenuEvent * event)
{
    QPoint pos = event->globalPos();
    QMenu menu;
    QAction* quitGroup = menu.addAction(tr("Quit group","Menu to quit a groupchat"));

    QAction* selectedItem = menu.exec(pos);
    if (selectedItem == quitGroup)
    {
        hide();
        show(); //Toggle visibility to work around bug of repaintEvent() not being fired on parent widget when this is hidden
        hide();
        emit removeGroup(groupId);
        return;
    }
}

void GroupWidget::onUserListChanged()
{
    Group* g = GroupList::findGroup(groupId);
    if (g)
        nusers.setText(tr("%1 users in chat").arg(g->nPeers));
    else
        nusers.setText(tr("0 users in chat"));
}

void GroupWidget::setAsActiveChatroom()
{
    setActive(true);

    // status
    QPalette pal;
    pal.setColor(QPalette::WindowText, Style::getColor(Style::MediumGrey));
    nusers.setPalette(pal);

    // name
    QPalette pal2;
    pal2.setColor(QPalette::WindowText, Style::getColor(Style::DarkGrey));
    name.setPalette(pal2);

    avatar->setPixmap(QPixmap(":img/group_dark.png"), Qt::transparent);
}

void GroupWidget::setAsInactiveChatroom()
{
    setActive(false);

    // status
    QPalette pal;
    pal.setColor(QPalette::WindowText, Style::getColor(Style::LightGrey));
    nusers.setPalette(pal);

    // name
    QPalette pal2;
    pal2.setColor(QPalette::WindowText, Style::getColor(Style::White));
    name.setPalette(pal2);

    avatar->setPixmap(QPixmap(":img/group.png"), Qt::transparent);
}

void GroupWidget::updateStatusLight()
{
    Group *g = GroupList::findGroup(groupId);

    if (Settings::getInstance().getUseNativeDecoration())
    {
        if (g->hasNewMessages == 0)
        {
            statusPic.setPixmap(QPixmap(":img/status/dot_online.png"));
        } else {
            if (g->userWasMentioned == 0) statusPic.setPixmap(QPixmap(":img/status/dot_online_notification.png"));
            else statusPic.setPixmap(QPixmap(":img/status/dot_online_notification.png"));
        }
    } else {
        if (g->hasNewMessages == 0)
        {
            statusPic.setPixmap(QPixmap(":img/status/dot_groupchat.png"));
        } else {
            if (g->userWasMentioned == 0) statusPic.setPixmap(QPixmap(":img/status/dot_groupchat_newmessages.png"));
            else statusPic.setPixmap(QPixmap(":img/status/dot_groupchat_notification.png"));
        }
    }
}

void GroupWidget::setChatForm(Ui::MainWindow &ui)
{
    Group* g = GroupList::findGroup(groupId);
    g->chatForm->show(ui);
}

void GroupWidget::resetEventFlags()
{
    Group* g = GroupList::findGroup(groupId);
    g->hasNewMessages = 0;
    g->userWasMentioned = 0;
}