/*
 * nheko Copyright (C) 2017  Konstantinos Sideris <siderisk@auth.gr>
 *
 * 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, 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
 * 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, see <http://www.gnu.org/licenses/>.
 */

#include <QDebug>
#include <QTimer>

#include "Config.h"
#include "FlatButton.h"
#include "MainWindow.h"
#include "UserInfoWidget.h"

UserInfoWidget::UserInfoWidget(QWidget *parent)
  : QWidget(parent)
  , display_name_("User")
  , user_id_("@user:homeserver.org")
  , logoutModal_{ nullptr }
  , logoutDialog_{ nullptr }
  , logoutButtonSize_{ 32 }
{
	QSizePolicy sizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Fixed);
	setSizePolicy(sizePolicy);
	setMinimumSize(QSize(0, 65));

	topLayout_ = new QHBoxLayout(this);
	topLayout_->setSpacing(0);
	topLayout_->setMargin(5);

	avatarLayout_ = new QHBoxLayout();
	textLayout_ = new QVBoxLayout();

	userAvatar_ = new Avatar(this);
	userAvatar_->setLetter(QChar('?'));
	userAvatar_->setSize(55);
	userAvatar_->setBackgroundColor("#f9f9f9");
	userAvatar_->setTextColor("#333333");

	QFont nameFont("Open Sans SemiBold");
	nameFont.setPixelSize(conf::userInfoWidget::fonts::displayName);

	displayNameLabel_ = new QLabel(this);
	displayNameLabel_->setFont(nameFont);
	displayNameLabel_->setStyleSheet("padding: 0 9px; color: #171919; margin-bottom: -10px;");
	displayNameLabel_->setAlignment(Qt::AlignLeading | Qt::AlignLeft | Qt::AlignTop);

	QFont useridFont("Open Sans");
	useridFont.setPixelSize(conf::userInfoWidget::fonts::userid);

	userIdLabel_ = new QLabel(this);
	userIdLabel_->setFont(useridFont);
	userIdLabel_->setStyleSheet("padding: 0 8px 8px 8px; color: #555459;");
	userIdLabel_->setAlignment(Qt::AlignLeading | Qt::AlignLeft | Qt::AlignVCenter);

	avatarLayout_->addWidget(userAvatar_);
	textLayout_->addWidget(displayNameLabel_);
	textLayout_->addWidget(userIdLabel_);

	topLayout_->addLayout(avatarLayout_);
	topLayout_->addLayout(textLayout_);
	topLayout_->addStretch(1);

	buttonLayout_ = new QHBoxLayout();
	buttonLayout_->setSpacing(0);
	buttonLayout_->setMargin(0);

	logoutButton_ = new FlatButton(this);
	logoutButton_->setForegroundColor(QColor("#555459"));
	logoutButton_->setFixedSize(logoutButtonSize_, logoutButtonSize_);
	logoutButton_->setCornerRadius(logoutButtonSize_ / 2);

	QIcon icon;
	icon.addFile(":/icons/icons/power-button-off.png", QSize(), QIcon::Normal, QIcon::Off);

	logoutButton_->setIcon(icon);
	logoutButton_->setIconSize(QSize(logoutButtonSize_ / 2, logoutButtonSize_ / 2));

	buttonLayout_->addWidget(logoutButton_);

	topLayout_->addLayout(buttonLayout_);

	// Show the confirmation dialog.
	connect(logoutButton_, &QPushButton::clicked, this, [=]() {
		if (logoutDialog_ == nullptr) {
			logoutDialog_ = new LogoutDialog(this);
			connect(logoutDialog_, SIGNAL(closing(bool)), this, SLOT(closeLogoutDialog(bool)));
		}

		if (logoutModal_ == nullptr) {
			logoutModal_ = new OverlayModal(MainWindow::instance(), logoutDialog_);
			logoutModal_->setDuration(100);
			logoutModal_->setColor(QColor(55, 55, 55, 170));
		}

		logoutModal_->fadeIn();
	});
}

void
UserInfoWidget::closeLogoutDialog(bool isLoggingOut)
{
	logoutModal_->fadeOut();

	if (isLoggingOut) {
		// Waiting for the modal to fade out.
		QTimer::singleShot(100, this, [=]() { emit logout(); });
	}
}

UserInfoWidget::~UserInfoWidget()
{
}

void
UserInfoWidget::resizeEvent(QResizeEvent *event)
{
	Q_UNUSED(event);

	if (width() <= ui::sidebar::SmallSize) {
		topLayout_->setContentsMargins(0, 0, logoutButtonSize_ / 2 - 5 / 2, 0);

		userAvatar_->hide();
		displayNameLabel_->hide();
		userIdLabel_->hide();
	} else {
		topLayout_->setMargin(5);
		userAvatar_->show();
		displayNameLabel_->show();
		userIdLabel_->show();
	}
}

void
UserInfoWidget::reset()
{
	displayNameLabel_->setText("");
	userIdLabel_->setText("");
	userAvatar_->setLetter(QChar('?'));
}

void
UserInfoWidget::setAvatar(const QImage &img)
{
	avatar_image_ = img;
	userAvatar_->setImage(img);
}

void
UserInfoWidget::setDisplayName(const QString &name)
{
	if (name.isEmpty())
		display_name_ = user_id_.split(':')[0].split('@')[1];
	else
		display_name_ = name;

	displayNameLabel_->setText(display_name_);
	userAvatar_->setLetter(QChar(display_name_[0]));
}

void
UserInfoWidget::setUserId(const QString &userid)
{
	user_id_ = userid;
	userIdLabel_->setText(userid);
}