"""Application settings 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.QtWidgets import (
    QCheckBox,
    QComboBox,
    QDialog,
    QDialogButtonBox,
    QFormLayout,
    QGroupBox,
    QLineEdit,
    QVBoxLayout,
)

from ..config import Settings


class SettingsDialog(QDialog):
    """Edit persistent application preferences."""

    def __init__(self, settings: Settings, parent=None):
        super().__init__(parent)
        self.setWindowTitle("Preferences")
        self.setMinimumWidth(440)
        self._settings = settings

        ui = QGroupBox("Interface")
        uf = QFormLayout(ui)
        self.show_hidden = QCheckBox("Show hidden files in filesystem pane")
        self.show_hidden.setChecked(settings.show_hidden)
        uf.addRow(self.show_hidden)
        self.confirm_delete = QCheckBox("Confirm before deleting entries")
        self.confirm_delete.setChecked(settings.confirm_delete)
        uf.addRow(self.confirm_delete)

        defaults = QGroupBox("New Image Defaults")
        df = QFormLayout(defaults)
        self.d_label = QLineEdit(settings.default_volume_label)
        df.addRow("Volume label:", self.d_label)
        self.d_level = QComboBox()
        self.d_level.addItems(["1", "2", "3"])
        self.d_level.setCurrentText(str(settings.default_interchange_level))
        df.addRow("ISO9660 level:", self.d_level)
        self.d_joliet = QCheckBox("Joliet")
        self.d_joliet.setChecked(bool(settings.default_joliet))
        df.addRow(self.d_joliet)
        self.d_rr = QCheckBox("Rock Ridge")
        self.d_rr.setChecked(bool(settings.default_rock_ridge))
        df.addRow(self.d_rr)
        self.d_udf = QCheckBox("UDF (new)")
        self.d_udf.setChecked(bool(settings.default_udf))
        df.addRow(self.d_udf)

        buttons = QDialogButtonBox(QDialogButtonBox.Ok | QDialogButtonBox.Cancel)
        buttons.accepted.connect(self.accept)
        buttons.rejected.connect(self.reject)

        layout = QVBoxLayout(self)
        layout.addWidget(ui)
        layout.addWidget(defaults)
        layout.addStretch(1)
        layout.addWidget(buttons)

    def apply_to(self, settings: Settings) -> Settings:
        settings.show_hidden = self.show_hidden.isChecked()
        settings.confirm_delete = self.confirm_delete.isChecked()
        settings.default_volume_label = self.d_label.text() or "CDROM"
        settings.default_interchange_level = int(self.d_level.currentText())
        settings.default_joliet = 3 if self.d_joliet.isChecked() else 0
        settings.default_rock_ridge = "1.09" if self.d_rr.isChecked() else ""
        settings.default_udf = "2.60" if self.d_udf.isChecked() else ""
        return settings