"""New ISO image options 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,
    QGridLayout,
    QGroupBox,
    QLabel,
    QLineEdit,
    QVBoxLayout,
)

from ..iso_handler import NewIsoOptions


class NewIsoDialog(QDialog):
    """Collect the options used to create a fresh image."""

    def __init__(self, settings, parent=None):
        super().__init__(parent)
        self.setWindowTitle("New ISO Image")
        self.setMinimumWidth(460)
        self._settings = settings

        # --- volume identity ----------------------------------------------
        vol_group = QGroupBox("Volume Identity")
        vol_form = QFormLayout(vol_group)
        self.volume_label = QLineEdit(settings.default_volume_label)
        self.volume_label.setMaxLength(32)
        vol_form.addRow("Volume label:", self.volume_label)

        self.publisher = QLineEdit()
        vol_form.addRow("Publisher:", self.publisher)
        self.preparer = QLineEdit()
        vol_form.addRow("Data preparer:", self.preparer)
        self.application = QLineEdit("ISO Scalpel")
        vol_form.addRow("Application:", self.application)
        self.system_id = QLineEdit()
        vol_form.addRow("System ID:", self.system_id)
        self.volume_set_id = QLineEdit(" ")
        vol_form.addRow("Volume set ID:", self.volume_set_id)

        # --- extensions ----------------------------------------------------
        ext_group = QGroupBox("Extensions")
        ext_grid = QGridLayout(ext_group)

        ext_grid.addWidget(QLabel("ISO9660 interchange level:"), 0, 0)
        self.interchange = QComboBox()
        self.interchange.addItems(["1 (8.3 names)", "2 (32 chars)", "3 (32 chars, multi-extent)"])
        self.interchange.setCurrentIndex(max(0, settings.default_interchange_level - 1))
        ext_grid.addWidget(self.interchange, 0, 1)

        self.joliet = QCheckBox("Joliet (Microsoft long names, Unicode)")
        self.joliet.setChecked(bool(settings.default_joliet))
        ext_grid.addWidget(self.joliet, 1, 0, 1, 2)

        self.joliet_level = QComboBox()
        self.joliet_level.addItems(["Level 1", "Level 2", "Level 3"])
        self.joliet_level.setCurrentIndex((settings.default_joliet or 3) - 1)
        ext_grid.addWidget(QLabel("Joliet level:"), 2, 0)
        ext_grid.addWidget(self.joliet_level, 2, 1)

        self.rock_ridge = QCheckBox("Rock Ridge (Unix long names + permissions)")
        self.rock_ridge.setChecked(bool(settings.default_rock_ridge))
        ext_grid.addWidget(self.rock_ridge, 3, 0, 1, 2)

        self.rr_version = QComboBox()
        self.rr_version.addItems(["1.09", "1.12"])
        self.rr_version.setCurrentText(settings.default_rock_ridge or "1.09")
        ext_grid.addWidget(QLabel("Rock Ridge version:"), 4, 0)
        ext_grid.addWidget(self.rr_version, 4, 1)

        self.udf = QCheckBox("UDF (Universal Disk Format — new in this port)")
        self.udf.setChecked(bool(settings.default_udf))
        ext_grid.addWidget(self.udf, 5, 0, 1, 2)

        self.udf_version = QComboBox()
        self.udf_version.addItems(["2.50", "2.60"])
        self.udf_version.setCurrentText(settings.default_udf or "2.60")
        ext_grid.addWidget(QLabel("UDF version:"), 6, 0)
        ext_grid.addWidget(self.udf_version, 6, 1)

        self.xa = QCheckBox("XA (Extended Attributes)")
        ext_grid.addWidget(self.xa, 7, 0, 1, 2)

        # --- block size ----------------------------------------------------
        ext_grid.addWidget(QLabel("Logical block size:"), 8, 0)
        self.block_size = QComboBox()
        self.block_size.addItems(["2048", "4096", "8192"])
        self.block_size.setCurrentText(str(settings.default_block_size))
        ext_grid.addWidget(self.block_size, 8, 1)

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

        layout = QVBoxLayout(self)
        layout.addWidget(vol_group)
        layout.addWidget(ext_group)
        layout.addStretch(1)
        layout.addWidget(buttons)

    # ------------------------------------------------------------------ result
    def options(self) -> NewIsoOptions:
        opts = NewIsoOptions()
        opts.volume_label = self.volume_label.text().strip() or "CDROM"
        opts.interchange_level = self.interchange.currentIndex() + 1
        opts.block_size = int(self.block_size.currentText())
        opts.joliet = (self.joliet_level.currentIndex() + 1) if self.joliet.isChecked() else None
        opts.rock_ridge = self.rr_version.currentText() if self.rock_ridge.isChecked() else None
        opts.udf = self.udf_version.currentText() if self.udf.isChecked() else None
        opts.publisher = self.publisher.text()
        opts.preparer = self.preparer.text()
        opts.application = self.application.text() or "ISO Scalpel"
        opts.system_id = self.system_id.text()
        opts.volume_set_id = self.volume_set_id.text() or " "
        opts.xa = self.xa.isChecked()
        return opts