/*

 * Hedgewars, a free turn based strategy game

 * Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>

 *

 * This program is free 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; version 2 of the License

 *

 * 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

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA

 */

#include <QVBoxLayout>

#include <QHBoxLayout>

#include <QGridLayout>

#include <QPushButton>

#include <QComboBox>

#include <QLabel>

#include <QLineEdit>

#include <QMessageBox>

#include <QHeaderView>

#include <QGroupBox>

#include <QFontMetrics>

#include <QMenu>

#include <QDebug>

#include <QSortFilterProxyModel>

#include "roomslistmodel.h"

#include "ammoSchemeModel.h"

#include "hwconsts.h"

#include "chatwidget.h"

#include "roomnameprompt.h"

#include "lineeditcursor.h"

#include "pageroomslist.h"

QLayout * PageRoomsList::bodyLayoutDefinition()

{

    QVBoxLayout * pageLayout = new QVBoxLayout();

    pageLayout->setSpacing(0);

    QGridLayout * topLayout = new QGridLayout();

    topLayout->setSpacing(0);

    pageLayout->addLayout(topLayout, 0);

    // Help/prompt message at top

    QLabel * lblDesc = new QLabel(tr("Join a room"));

    lblDesc->setObjectName("lblDesc");

    lblDesc->setStyleSheet("#lblDesc { color: #130F2A; background: #F6CB1C; border: solid 4px #F6CB1C; border-top-left-radius: 10px; padding: 4px 10px;}");

    lblDesc->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

    lblDesc->setFixedHeight(24);

    lblDesc->setMinimumWidth(0);

    // Search text box

    QWidget * searchContainer = new QWidget();

    searchContainer->setFixedHeight(24);

    searchContainer->setObjectName("searchContainer");

    searchContainer->setStyleSheet("#searchContainer { background: #F6CB1C; border-top-right-radius: 10px; padding: 3px; }");

    searchContainer->setFixedWidth(250);

    searchText = new LineEditCursor(searchContainer);

    searchText->setFixedWidth(250);

    searchText->setMaxLength(60);

    searchText->setFixedHeight(22);

    // Search label

    QLabel * lblSearch = new QLabel(tr("Search: "), searchText);

    QFontMetrics lblMetrics(lblSearch->font());

    int lblSearchWidth = lblMetrics.width(lblSearch->text());

    lblSearch->setStyleSheet(QString("background: none; margin-left: -%1px; margin-top: 4px;").arg(lblSearchWidth + 5));

    searchText->setStyleSheet(QString("LineEditCursor, QLabel { border-width: 0px; border-radius: 6px; margin-top: 3px; margin-right: 3px; padding-left: %1px; padding-bottom: 2px; background-color: rgb(23, 11, 54); } LineEditCursor:hover, LineEditCursor:focus { background-color: rgb(13, 5, 68); }").arg(lblSearchWidth + 5));

    // Corner widget

    QLabel * corner = new QLabel();

    corner->setPixmap(QPixmap(QString::fromUtf8(":/res/inverse-corner-bl.png")));

    corner->setFixedSize(10, 10);

    const QIcon& lp = QIcon(":/res/new.png");

    QSize sz = lp.actualSize(QSize(65535, 65535));

    BtnCreate = new QPushButton();

    BtnCreate->setText(tr("Create room"));

    BtnCreate->setIcon(lp);

    BtnCreate->setStyleSheet("padding: 4px 8px; margin-bottom: 6px;");

    BtnJoin = new QPushButton(tr("Join room"));

    BtnJoin->setStyleSheet("padding: 4px 8px; margin-bottom: 6px; margin-left: 6px;");

    BtnJoin->setEnabled(false);

    // Add widgets to top layout

    topLayout->addWidget(lblDesc, 1, 0);

    topLayout->addWidget(searchContainer, 1, 1);

    topLayout->addWidget(corner, 1, 2, Qt::AlignBottom);

    topLayout->addWidget(BtnCreate, 0, 4, 2, 1);

    topLayout->addWidget(BtnJoin, 0, 5, 2, 1);

    // Top layout stretch

    topLayout->setRowStretch(0, 1);

    topLayout->setRowStretch(1, 0);

    topLayout->setColumnStretch(3, 1);

    // Room list

    roomsList = new RoomTableView(this);

    roomsList->setSelectionBehavior(QAbstractItemView::SelectRows);

    roomsList->verticalHeader()->setVisible(false);

    roomsList->horizontalHeader()->setResizeMode(QHeaderView::Interactive);

    roomsList->setAlternatingRowColors(true);

    roomsList->setShowGrid(false);

    roomsList->setSelectionMode(QAbstractItemView::SingleSelection);

    roomsList->setStyleSheet("QTableView { border-top-left-radius: 0px; }");

    roomsList->setFocusPolicy(Qt::NoFocus);

    pageLayout->addWidget(roomsList, 200);

    // Room filters container

    QWidget * filtersContainer = new QWidget();

    filtersContainer->setMaximumWidth(800);

    filtersContainer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);

    pageLayout->addSpacing(7);

    pageLayout->addWidget(filtersContainer, 0, Qt::AlignHCenter);

    pageLayout->addSpacing(7);

    QHBoxLayout * filterLayout = new QHBoxLayout(filtersContainer);

    filterLayout->setSpacing(0);

    filterLayout->setMargin(0);

    const int filterSpacing = 20;

    // State button

    QPushButton * btnState = new QPushButton(tr("Room state"));

    btnState->setStyleSheet("QPushButton { padding: 2px 4px; } QPushButton:pressed { background-color: #ffcc00; border-color: #ffcc00; border-bottom-left-radius: 0px; border-bottom-right-radius: 0px; color: #11084A; }");

    btnState->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);

    filterLayout->addWidget(btnState);

    filterLayout->addSpacing(filterSpacing);

    // State menu

    QMenu * stateMenu = new QMenu(btnState);

    showGamesInLobby = new QAction(QAction::tr("Show games in lobby"), stateMenu);

    showGamesInLobby->setCheckable(true);

    showGamesInLobby->setChecked(true);

    showGamesInProgress = new QAction(QAction::tr("Show games in-progress"), stateMenu);

    showGamesInProgress->setCheckable(true);

    showGamesInProgress->setChecked(true);

    stateMenu->addAction(showGamesInLobby);

    stateMenu->addAction(showGamesInProgress);

    btnState->setMenu(stateMenu);

    // Rules dropdown

    CBRules = new QComboBox(this);

    CBRules->setStyleSheet("QComboBox { border-top-left-radius: 0px; border-bottom-left-radius: 0px; border-left-width: 2px; }");

    QLabel * ruleLabel = new QLabel(tr("Rules:"), this);

    ruleLabel->setFixedHeight(CBRules->height());

    ruleLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

    ruleLabel->setStyleSheet("border: solid; border-width: 3px; border-right-width: 0px; border-color: #ffcc00; border-top-left-radius: 10px; border-bottom-left-radius: 10px; background-color: rgba(13, 5, 68, 70%);");

    filterLayout->addWidget(ruleLabel);

    filterLayout->addWidget(CBRules);

    filterLayout->addSpacing(filterSpacing);

    // Weapons dropdown

    CBWeapons = new QComboBox(this);

    CBWeapons->setStyleSheet("QComboBox { border-top-left-radius: 0px; border-bottom-left-radius: 0px; border-left-width: 2px; }");

    QLabel * weaponLabel = new QLabel(tr("Weapons:"), this);

    weaponLabel->setFixedHeight(CBWeapons->height());

    weaponLabel->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);

    weaponLabel->setStyleSheet("border: solid; border-width: 3px; border-right-width: 0px; border-color: #ffcc00; border-top-left-radius: 10px; border-bottom-left-radius: 10px; background-color: rgba(13, 5, 68, 70%);");

    filterLayout->addWidget(weaponLabel);

    filterLayout->addWidget(CBWeapons);

    filterLayout->addSpacing(filterSpacing);

    // Clear filters button

    BtnClear = addButton(tr("Clear filters"), filterLayout, 0);

    weaponLabel->setFixedHeight(CBWeapons->height());

    BtnClear->setStyleSheet("padding: 4px;");

    // Lobby chat

    chatWidget = new HWChatWidget(this, false);

    pageLayout->addWidget(chatWidget, 350);

    CBRules->addItem(QComboBox::tr("Any"));

    return pageLayout;

}

QLayout * PageRoomsList::footerLayoutDefinition()

{

    QHBoxLayout * bottomLayout = new QHBoxLayout();

    BtnAdmin = addButton(tr("Admin features"), bottomLayout, 0);

    BtnAdmin->setStyleSheet("padding: 4px auto;");

    BtnAdmin->setWhatsThis(tr("Open server administration page"));

    return bottomLayout;

}

void PageRoomsList::connectSignals()

{

    connect(chatWidget, SIGNAL(nickCountUpdate(const int)), this, SLOT(updateNickCounter(const int)));

    connect(BtnCreate, SIGNAL(clicked()), this, SLOT(onCreateClick()));

    connect(BtnJoin, SIGNAL(clicked()), this, SLOT(onJoinClick()));

    connect(BtnClear, SIGNAL(clicked()), this, SLOT(onClearClick()));

    connect(searchText, SIGNAL(moveUp()), this, SLOT(moveSelectionUp()));

    connect(searchText, SIGNAL(moveDown()), this, SLOT(moveSelectionDown()));

    connect(searchText, SIGNAL(returnPressed()), this, SLOT(onJoinClick()));

    connect(roomsList, SIGNAL(doubleClicked (const QModelIndex &)), this, SLOT(onJoinClick()));

    connect(roomsList, SIGNAL(clicked (const QModelIndex &)), searchText, SLOT(setFocus()));

    connect(showGamesInLobby, SIGNAL(triggered()), this, SLOT(onFilterChanged()));

    connect(showGamesInProgress, SIGNAL(triggered()), this, SLOT(onFilterChanged()));

    connect(CBRules, SIGNAL(currentIndexChanged (int)), this, SLOT(onFilterChanged()));

    connect(CBWeapons, SIGNAL(currentIndexChanged (int)), this, SLOT(onFilterChanged()));

    connect(searchText, SIGNAL(textChanged (const QString &)), this, SLOT(onFilterChanged()));

    connect(this, SIGNAL(askJoinConfirmation (const QString &)), this, SLOT(onJoinConfirmation(const QString &)), Qt::QueuedConnection);

    // Set focus on search box

    connect(this, SIGNAL(pageEnter()), searchText, SLOT(setFocus()));

    // sorting

    connect(roomsList->horizontalHeader(), SIGNAL(sortIndicatorChanged(int, Qt::SortOrder)),

            this, SLOT(onSortIndicatorChanged(int, Qt::SortOrder)));

}

void PageRoomsList::moveSelectionUp()

{

    roomsList->setCurrentIndex(roomsList->moveCursor(QAbstractItemView::MoveUp, Qt::NoModifier));

}

void PageRoomsList::moveSelectionDown()

{

    roomsList->setCurrentIndex(roomsList->moveCursor(QAbstractItemView::MoveDown, Qt::NoModifier));

}

void PageRoomsList::roomSelectionChanged(const QModelIndex & current, const QModelIndex & previous)

{

    BtnJoin->setEnabled(current.isValid());

}

PageRoomsList::PageRoomsList(QWidget* parent) :

    AbstractPage(parent)

{

    roomsModel = NULL;

    stateFilteredModel = NULL;

    schemeFilteredModel = NULL;

    weaponsFilteredModel = NULL;

    initPage();

    // not the most elegant solution but it works

    ammoSchemeModel = new AmmoSchemeModel(this, NULL);

    for (int i = 0; i < ammoSchemeModel->predefSchemesNames.count(); i++)

        CBRules->addItem(ammoSchemeModel->predefSchemesNames.at(i).toAscii().constData());

    CBWeapons->addItem(QComboBox::tr("Any"));

    for (int i = 0; i < cDefaultAmmos.count(); i++)

    {

        QPair<QString,QString> ammo = cDefaultAmmos.at(i);

        CBWeapons->addItem(ammo.first.toAscii().constData());

    }

}

void PageRoomsList::displayError(const QString & message)

{

    chatWidget->displayError(message);

}

void PageRoomsList::displayNotice(const QString & message)

{

    chatWidget->displayNotice(message);

}

void PageRoomsList::displayWarning(const QString & message)

{

    chatWidget->displayWarning(message);

}

void PageRoomsList::setAdmin(bool flag)

{

    BtnAdmin->setVisible(flag);

}

/*

void PageRoomsList::setRoomsList(const QStringList & list)

{

    QBrush red(QColor(255, 0, 0));

    QBrush orange(QColor(127, 127, 0));

    QBrush yellow(QColor(255, 255, 0));

    QBrush green(QColor(0, 255, 0));

    listFromServer = list;

    QString selection = "";

    if(QTableWidgetItem *item = roomsList->item(roomsList->currentRow(), 0))

        selection = item->text();

    roomsList->clear();

    roomsList->setColumnCount(7);

    roomsList->setHorizontalHeaderLabels(

    );

    // set minimum sizes

//  roomsList->horizontalHeader()->resizeSection(0, 200);

//  roomsList->horizontalHeader()->resizeSection(1, 50);

//  roomsList->horizontalHeader()->resizeSection(2, 50);

//  roomsList->horizontalHeader()->resizeSection(3, 100);

//  roomsList->horizontalHeader()->resizeSection(4, 100);

//  roomsList->horizontalHeader()->resizeSection(5, 100);

//  roomsList->horizontalHeader()->resizeSection(6, 100);

    // set resize modes

//  roomsList->horizontalHeader()->setResizeMode(QHeaderView::Interactive);

    bool gameCanBeJoined = true;

    if (list.size() % 8)

        return;

    roomsList->setRowCount(list.size() / 8);

    for(int i = 0, r = 0; i < list.size(); i += 8, r++)

    {

        // if we are joining a game

        // TODO: Should NOT be done here

        if (gameInLobby)

        {

            if (gameInLobbyName == list[i + 1])

            {

                gameCanBeJoined = list[i].compare("True");

            }

        }

        // check filter settings

#define NO_FILTER_MATCH roomsList->setRowCount(roomsList->rowCount() - 1); --r; continue

        if (list[i].compare("True") && CBState->currentIndex() == 2)

        {

            NO_FILTER_MATCH;

        }

        if (list[i].compare("False") && CBState->currentIndex() == 1)

        {

            NO_FILTER_MATCH;

        }

        if (CBRules->currentIndex() != 0 && list[i + 6].compare(CBRules->currentText()))

        {

            NO_FILTER_MATCH;

        }

        if (CBWeapons->currentIndex() != 0 && list[i + 7].compare(CBWeapons->currentText()))

        {

            NO_FILTER_MATCH;

        }

        bool found = list[i + 1].contains(searchText->text(), Qt::CaseInsensitive);

        if (!found)

        {

            for (int a = 4; a <= 7; ++a)

            {

                QString compString = list[i + a];

                if (a == 5 && compString == "+rnd+")

                {

                    compString = "Random Map";

                }

                else if (a == 5 && compString == "+maze+")

                {

                    compString = "Random Maze";

                }

                else if (a == 5 && compString == "+drawn+")

                {

                    compString = "Drawn Map";

                }

                if (compString.contains(searchText->text(), Qt::CaseInsensitive))

                {

                    found = true;

                    break;

                }

            }

        }

        if (!searchText->text().isEmpty() && !found)

        {

            NO_FILTER_MATCH;

        }

        QTableWidgetItem * item;

        item = new QTableWidgetItem(list[i + 1]); // room name

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        // pick appropriate room icon and tooltip (game in progress yes/no; later maybe locked rooms etc.)

        if(list[i].compare("True"))

        {

            item->setIcon(QIcon(":/res/iconTime.png"));// game is in lobby

            item->setToolTip(tr("Waiting..."));

            item->setWhatsThis(tr("This game is in lobby: you may join and start playing once the game starts."));

        }

        else

        {

            item->setIcon(QIcon(":/res/iconDamage.png"));// game has started

            item->setToolTip(tr("In progress..."));

            item->setWhatsThis(tr("This game is in progress: you may join and spectate now but you'll have to wait for the game to end to start playing."));

        }

        roomsList->setItem(r, 0, item);

        item = new QTableWidgetItem(list[i + 2]); // number of clients

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setTextAlignment(Qt::AlignCenter);

        item->setWhatsThis(tr("There are %1 clients connected to this room.", "", list[i + 2].toInt()).arg(list[i + 2]));

        roomsList->setItem(r, 1, item);

        item = new QTableWidgetItem(list[i + 3]); // number of teams

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setTextAlignment(Qt::AlignCenter);

        item->setWhatsThis(tr("There are %1 teams participating in this room.", "", list[i + 3].toInt()).arg(list[i + 3]));

        //Should we highlight "full" games? Might get misinterpreted

        //if(list[i + 3].toInt() >= cMaxTeams)

        //    item->setForeground(red);

        roomsList->setItem(r, 2, item);

        item = new QTableWidgetItem(list[i + 4].left(15)); // name of host

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setWhatsThis(tr("%1 is the host. He may adjust settings and start the game.").arg(list[i + 4]));

        roomsList->setItem(r, 3, item);

        if(list[i + 5] == "+rnd+")

        {

            item = new QTableWidgetItem(tr("Random Map")); // selected map (is randomized)

// FIXME - need real icons. Disabling until then

//            item->setIcon(QIcon(":/res/mapRandom.png"));

        }

        else if (list[i+5] == "+maze+")

        {

            item = new QTableWidgetItem(tr("Random Maze"));

// FIXME - need real icons. Disabling until then

//            item->setIcon(QIcon(":/res/mapMaze.png"));

        }

        else

        {

            item = new QTableWidgetItem(list[i + 5]); // selected map

            // check to see if we've got this map

            // not perfect but a start

            if(!mapList->contains(list[i + 5]))

            {

                item->setForeground(red);

                item->setIcon(QIcon(":/res/mapMissing.png"));

            }

            else

            {

                // todo: mission icon?

// FIXME - need real icons. Disabling until then

//               item->setIcon(QIcon(":/res/mapCustom.png"));

            }

        }

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setWhatsThis(tr("Games may be played on precreated or randomized maps."));

        roomsList->setItem(r, 4, item);

        item = new QTableWidgetItem(list[i + 6].left(24)); // selected game scheme

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setWhatsThis(tr("The Game Scheme defines general options and preferences like Round Time, Sudden Death or Vampirism."));

        roomsList->setItem(r, 5, item);

        item = new QTableWidgetItem(list[i + 7].left(24)); // selected weapon scheme

        item->setFlags(Qt::ItemIsEnabled | Qt::ItemIsSelectable);

        item->setWhatsThis(tr("The Weapon Scheme defines available weapons and their ammunition count."));

        roomsList->setItem(r, 6, item);

        if(!list[i + 1].compare(selection) && !selection.isEmpty())

            roomsList->selectionModel()->setCurrentIndex(roomsList->model()->index(r, 0), QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);

    }

    roomsList->horizontalHeader()->setResizeMode(0, QHeaderView::Stretch);

    roomsList->horizontalHeader()->setResizeMode(1, QHeaderView::ResizeToContents);

    roomsList->horizontalHeader()->setResizeMode(2, QHeaderView::ResizeToContents);

    roomsList->horizontalHeader()->setResizeMode(3, QHeaderView::ResizeToContents);

    roomsList->horizontalHeader()->setResizeMode(4, QHeaderView::ResizeToContents);

    roomsList->horizontalHeader()->setResizeMode(5, QHeaderView::ResizeToContents);

    roomsList->horizontalHeader()->setResizeMode(6, QHeaderView::ResizeToContents);

    // TODO: Should NOT be done here

    if (gameInLobby)

    {