/* SPDX-FileCopyrightText: 2026 Project Tick
 * SPDX-FileContributor: Project Tick
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 *   MeshMC - A Custom Launcher for Minecraft
 *   Copyright (C) 2026 Project Tick
 *
 *   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 <https://www.gnu.org/licenses/>.
 *
 *  This file incorporates work covered by the following copyright and
 *  permission notice:
 *
 * Copyright 2013-2021 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "MSALoginDialog.h"
#include "ui_MSALoginDialog.h"

#include "minecraft/auth/AccountTask.h"

#include <QtWidgets/QPushButton>
#include <QUrl>

MSALoginDialog::MSALoginDialog(QWidget* parent)
	: QDialog(parent), ui(new Ui::MSALoginDialog)
{
	ui->setupUi(this);
	ui->progressBar->setVisible(false);

	connect(ui->buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
	connect(ui->buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
}

int MSALoginDialog::exec()
{
	setUserInputsEnabled(false);
	ui->progressBar->setVisible(true);
	ui->progressBar->setMaximum(0); // Indeterminate progress
	ui->label->setText(tr("Opening your browser for Microsoft login..."));

	// Setup the login task and start it
	m_account = MinecraftAccount::createBlankMSA();
	m_loginTask = m_account->loginMSA();
	connect(m_loginTask.get(), &Task::failed, this,
			&MSALoginDialog::onTaskFailed);
	connect(m_loginTask.get(), &Task::succeeded, this,
			&MSALoginDialog::onTaskSucceeded);
	connect(m_loginTask.get(), &Task::status, this,
			&MSALoginDialog::onTaskStatus);
	connect(m_loginTask.get(), &Task::progress, this,
			&MSALoginDialog::onTaskProgress);
	connect(m_loginTask.get(), &AccountTask::authorizeWithBrowser, this,
			&MSALoginDialog::onAuthorizeWithBrowser);
	m_loginTask->start();

	return QDialog::exec();
}

MSALoginDialog::~MSALoginDialog()
{
	delete ui;
}

void MSALoginDialog::onAuthorizeWithBrowser(const QUrl& url)
{
	QString urlString = url.toString();
	QString linkString =
		QString("<a href=\"%1\">%2</a>").arg(urlString, tr("here"));
	ui->label->setText(
		tr("<p>A browser window will open for Microsoft login.</p>"
		   "<p>If it doesn't open automatically, click %1.</p>")
			.arg(linkString));
}

void MSALoginDialog::setUserInputsEnabled(bool enable)
{
	ui->buttonBox->setEnabled(enable);
}

void MSALoginDialog::onTaskFailed(const QString& reason)
{
	// Set message
	auto lines = reason.split('\n');
	QString processed;
	for (auto line : lines) {
		if (line.size()) {
			processed += "<font color='red'>" + line + "</font><br />";
		} else {
			processed += "<br />";
		}
	}
	ui->label->setText(processed);

	// Re-enable user-interaction
	setUserInputsEnabled(true);
	ui->progressBar->setVisible(false);
}

void MSALoginDialog::onTaskSucceeded()
{
	QDialog::accept();
}

void MSALoginDialog::onTaskStatus(const QString& status)
{
	ui->label->setText(status);
}

void MSALoginDialog::onTaskProgress(qint64 current, qint64 total)
{
	ui->progressBar->setMaximum(total);
	ui->progressBar->setValue(current);
}

// Public interface
MinecraftAccountPtr MSALoginDialog::newAccount(QWidget* parent, QString msg)
{
	MSALoginDialog dlg(parent);
	dlg.ui->label->setText(msg);
	if (dlg.exec() == QDialog::Accepted) {
		return dlg.m_account;
	}
	return nullptr;
}