"""About dialog."""

# This file is part of ISO Scalpel.
# Copyright (C) 2025 Jeremy Anderson <info@dcos.net>
#
# 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 2 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/>
# or write to the Free Software Foundation, Inc., 51 Franklin Street,
# Fifth Floor, Boston, MA  02110-1301 USA.

from __future__ import annotations

from PySide6.QtCore import Qt
from PySide6.QtWidgets import QDialog, QHBoxLayout, QLabel, QPushButton, QVBoxLayout

from .. import __app_name__, __author__, __author_url__, __tagline__, __version__


class AboutDialog(QDialog):
    def __init__(self, parent=None):
        super().__init__(parent)
        self.setWindowTitle(f"About {__app_name__}")
        self.setMinimumWidth(440)

        title = QLabel(f"<h2>{__app_name__}</h2>")
        title.setTextFormat(Qt.RichText)
        ver = QLabel(f"Version {__version__} — <i>{__tagline__}</i>")
        ver.setTextFormat(Qt.RichText)
        body = QLabel(
            "<p>A disc-image editor built with <b>PySide6</b> (Qt 6) and "
            "<b>pycdlib</b>.</p>"
            "<p>Supported features:</p>"
            "<ul>"
            "<li>ISO9660 levels 1–3</li>"  # noqa: RUF001 -- intentional en dash in UI copy
            "<li>Rock Ridge (1.09 / 1.12) — Unix long names &amp; permissions</li>"
            "<li>Joliet (1 / 2 / 3) — Microsoft long names</li>"
            "<li><b>UDF 2.50 / 2.60</b> — Universal Disk Format</li>"
            "<li>El Torito boot images (BIOS / EFI)</li>"
            "<li>Add / extract / rename / delete files &amp; folders</li>"
            "<li>Volume metadata editing</li>"
            "<li>Filesystem diff between two images</li>"
            "<li>Command-line interface (<code>cli.py</code>)</li>"
            "<li>Split-navigation panes with tabs, breadcrumbs &amp; filtering</li>"
            "</ul>"
            f"<p style='color:#666'>Copyright © 2025 {__author__}<br>"
            f"<a href='{__author_url__}'>{__author_url__}</a></p>"
            "<p style='color:#888'>Licensed under the GNU GPL v2.<br>"
            "ISO Scalpel is an independent project; no source code from any "
            "other ISO editing tool was used.</p>"
        )
        body.setTextFormat(Qt.RichText)
        body.setWordWrap(True)
        body.setOpenExternalLinks(True)

        close = QPushButton("Close")
        close.clicked.connect(self.accept)

        layout = QVBoxLayout(self)
        layout.addWidget(title)
        layout.addWidget(ver)
        layout.addWidget(body)
        layout.addStretch(1)
        row = QHBoxLayout()
        row.addStretch(1)
        row.addWidget(close)
        layout.addLayout(row)