#include "ui/hotseat_recruitment/recruitmentscene.h"
#include "gui/guiscenemanager.h"
#include "gui/scene.h"
#include "playermanager.h"
#include "player.h"
#include "racemanager.h"
#include "race.h"
#include "soundengine.h"

#include <ui_recruitmentscene.h>
#include <QString>
#include <QStringList>
#include <QMovie>
#include <QDebug>

#include <vector>

RecruitmentScene::RecruitmentScene(QWidget *parent)
    : Scene(parent)
    , ui(new Ui::RecruitmentScene)
{
    ui->setupUi(this);

    movie = new QMovie(":/assets/hotseat_recruit/image.gif");
    ui->image->setMovie(movie);
    movie->start();

    watcher = new ButtonEventListener(this);
    ui->complete_choice_button->installEventFilter(watcher);
    ui->back_button->installEventFilter(watcher);


    // Создаём обработчик событий нажатия иконок рас
    race_icon_watcher = new RaceIconEventListener(this, this);

    for (unsigned i = 0; i < RACES_NUMBER; i++) {
        QLabel* race_icon = findChild<QLabel*>("available_race_" + QString::number(i));
        if (race_icon)
            race_icon->installEventFilter(race_icon_watcher);
    }
    ui->chosen_race_image_->installEventFilter(race_icon_watcher);

    // Создаём обработчик событий нажатия иконок юнитов
    unit_icon_watcher = new UnitIconEventListener(this, this);

//    for (unsigned i = 0; i < AVAILABLE_UNIT_NUMBER; i++) {
//        QLabel* unit_icon = findChild<QLabel*>("available_unit_" + QString::number(i));
//        if (unit_icon)
//            unit_icon->installEventFilter(unit_icon_watcher);
//    }

//    for (unsigned i = 0; i < MAX_PARTY_SIZE; i++) {
//        QLabel* unit_icon = findChild<QLabel*>("chosen_unit_" + QString::number(i));
//        if (unit_icon)
//            unit_icon->installEventFilter(unit_icon_watcher);
//    }
}

RecruitmentScene::~RecruitmentScene()
{
}

void RecruitmentScene::parseArgs(QString args) {
    QStringList list = args.split("|");
    if (list.size() < 2) {
        // TODO: ERROR MESSAGE - incorrect arguments number
        GuiSceneManager::getInstance().changeScene("main_menu");
    }

    current_player_id_ = list[0].toInt();
    current_player_ = PlayerManager::getInstance().getPlayer(current_player_id_);
    available_money_ = std::max(0, list[1].toInt());

    if (!current_player_) {
        // TODO: ERROR MESSAGE - incorrect argument - player_id;
        GuiSceneManager::getInstance().changeScene("main_menu");
    }
}

void RecruitmentScene::init() {
    current_money_ = available_money_;
    initAvailableRaces();
    initAvailableUnits();
    showChosenUnits();

    ui->title_->setText(
        "<p align=\"center\">Набор юнитов - " + current_player_->getPlayerName() + "</p>"
    );

    QString race_name = current_player_->getRace()->getRaceId();
    ui->chosen_race_image_->setText(
        "<img src=\":/assets/units/" + race_name + "/icon.png\" width=\"100\" height=\"100\"/>"
    );

    setMoney(current_money_);
}

void RecruitmentScene::initAvailableRaces() {
    auto races = RaceManager::getInstance().getAvailableRacesList();
    race_ids_.clear();
    for (unsigned i = 0; i < std::min(RACES_NUMBER, races.size()); i++) {
        QString race_name = races[i];
        race_ids_.push_back(race_name);
        QLabel* race_icon = findChild<QLabel*>("available_race_" + QString::number(i));
        if (race_icon)
            race_icon->setText("<img src=\":/assets/units/" + race_name + "/icon.png\" width=\"66\" height=\"66\"/>");
    }
}

void RecruitmentScene::initAvailableUnits() {
    auto units_list = current_player_->getRace()->getAllUnitsList();
    available_unit_ids.clear();
    for (unsigned i = 0; i < std::min(AVAILABLE_UNIT_NUMBER, units_list.size()); i++) {
        QString race_name = current_player_->getRace()->getRaceId();
        QString unit_name = units_list[i]->getUnitId();
        available_unit_ids.push_back(unit_name);

        QLabel* unit_icon = findChild<QLabel*>("available_unit_" + QString::number(i));
        qDebug() << "<img src=\":/assets/units/" + race_name + "/" + unit_name + "/icon.png\" width=\"58\" height=\"58\"/>";
        if (unit_icon)
            unit_icon->setText("<img src=\":/assets/units/" + race_name + "/" + unit_name + "/icon.png\" width=\"58\" height=\"58\"/>");
    }
}

void RecruitmentScene::showChosenUnits() {
    int counter = 0;
    chosen_unit_ids.clear();

    for (auto unit : current_player_->getUnits()) {
        if (counter >= MAX_PARTY_SIZE)
            break;
        QString unit_name = unit->getUnitId();
        chosen_unit_ids.push_back(unit_name);
        QString race_name = current_player_->getRace()->getRaceId();
        QLabel* unit_icon = findChild<QLabel*>("chosen_unit_" + QString::number(counter));
        if (unit_icon)
            unit_icon->setText("<img src=\":/assets/units/" + race_name + "/" + unit_name + "/icon.png\" width=\"58\" height=\"58\"/>");
        counter++;
    }


    for (int i = counter; i < MAX_PARTY_SIZE; i++) {
        QLabel* unit_icon = findChild<QLabel*>("chosen_unit_" + QString::number(i));
        if (unit_icon)
            unit_icon->setText("");
    }

}

void RecruitmentScene::changeRace(Race *race) {
    current_player_->clearUnits();
    current_player_->setRace(race);
    init();
}

void RecruitmentScene::setMoney(int money_) {
   ui->available_money_text_->setText("Монеты: " + QString::number(money_));
}

void RecruitmentScene::on_back_button_clicked() {
    GuiSceneManager::getInstance().changeScene("pvp_intro");
}


RaceIconEventListener::RaceIconEventListener(QObject *parent, RecruitmentScene* scene)
    : QObject(parent)
    , scene_(scene)  {
}

bool RaceIconEventListener::eventFilter(QObject *watched, QEvent *event) {
    QLabel* icon = qobject_cast<QLabel*>(watched);
    if (!icon) {
        return false;
    }

    if (event->type() == QEvent::Enter) {
        IconHint *hint = new IconHint(scene_);
        unsigned race_id_number = icon->objectName().mid(icon->objectName().lastIndexOf('_') + 1).toInt();
        QString race_name = RaceManager::getInstance().getRace(scene_->race_ids_[race_id_number])->getRaceName();
        hint->setTitle("Раса \"" + race_name + "\"");

        if (icon->objectName() != "chosen_race_image_") {
            icon->setStyleSheet("border-image: url(:/assets/hotseat_recruit/unit_icon_hover.png);\nbackground-color: rgb(253, 234, 168);");
            SoundEngine::getInstance().playAsync("qrc:/assets/common/buttons/button_hover.mp3");
            hint->setText("ЛКМ - сменить расу\nПКМ - открыть окно информации");
        } else {
            hint->setText("ПКМ - открыть окно информации");
        }
        hint->move(icon->mapToGlobal(QPoint(0,0)).x() + icon->width() / 2 - hint->width() / 2, icon->mapToGlobal(QPoint(0,0)).y() + icon->height() + 2);
        return false;
    }

    if (event->type() == QEvent::Leave) {
        if (icon->objectName() != "chosen_race_image_") {
            icon->setStyleSheet("border-image: url(:/assets/hotseat_recruit/unit_icon_default.png);\nbackground-color: rgb(253, 234, 168);");
            SoundEngine::getInstance().playAsync("qrc:/assets/common/buttons/button_hover.mp3");
            if (!scene_)
                return false;
        }

        QList<IconHint*> hints = scene_->findChildren<IconHint*>("hint");
        for (auto &hint : hints) {
            hint->hide();
            hint->deleteLater();
        }
        return false;
    }

    if (event->type() == QEvent::MouseButtonDblClick) {

    }

    return false;
}


UnitIconEventListener::UnitIconEventListener(QObject *parent, RecruitmentScene *scene)
    : QObject(parent)
    , scene_(scene)  {
}

bool UnitIconEventListener::eventFilter(QObject *watched, QEvent *event) {
    return false;
}