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# SPDX-License-Identifier: LGPL-2.1-or-later

# ***************************************************************************
# *   Copyright (c) 2025 Samuel Abels <knipknap@gmail.com>                  *
# *                                                                         *
# *   This program is free software; you can redistribute it and/or modify  *
# *   it under the terms of the GNU Lesser General Public License (LGPL)    *
# *   as published by the Free Software Foundation; either version 2 of     *
# *   the License, or (at your option) any later version.                   *
# *   for detail see the LICENCE text file.                                 *
# *                                                                         *
# *   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 Library General Public License for more details.                  *
# *                                                                         *
# *   You should have received a copy of the GNU Library General Public     *
# *   License along with this program; if not, write to the Free Software   *
# *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  *
# *   USA                                                                   *
# *                                                                         *
# ***************************************************************************
import pathlib
from typing import Optional
import FreeCAD
import tempfile
import os
from .doc import ShapeDocFromBytes


_svg_ns = {"s": "http://www.w3.org/2000/svg"}


def file_is_newer(reference: pathlib.Path, file: pathlib.Path):
    return reference.stat().st_mtime > file.stat().st_mtime


def create_thumbnail(filepath: pathlib.Path, w: int = 200, h: int = 200) -> Optional[pathlib.Path]:
    if not FreeCAD.GuiUp:
        return None

    try:
        import FreeCADGui
    except ImportError:
        raise RuntimeError("Error: Could not load UI - is it up?")

    doc = FreeCAD.openDocument(str(filepath))
    view = FreeCADGui.activeDocument().ActiveView
    out_filepath = filepath.with_suffix(".png")
    if not view:
        print("No view active, cannot make thumbnail for {}".format(filepath))
        return

    view.viewFront()
    view.fitAll()
    view.setAxisCross(False)
    view.saveImage(str(out_filepath), w, h, "Transparent")

    FreeCAD.closeDocument(doc.Name)
    return out_filepath


def create_thumbnail_from_data(shape_data: bytes, w: int = 200, h: int = 200) -> Optional[bytes]:
    """
    Create a thumbnail icon from shape data bytes using a temporary document.
    Args:
        shape_data (bytes): The raw bytes of the shape file (.FCStd).
        w (int): Width of the thumbnail.
        h (int): Height of the thumbnail.
    Returns:
        Optional[bytes]: PNG image bytes, or None if generation fails.
    """
    if not FreeCAD.GuiUp:
        return None

    try:
        import FreeCADGui
    except ImportError:
        raise RuntimeError("Error: Could not load UI - is it up?")

    temp_png_path = None
    try:
        with ShapeDocFromBytes(shape_data) as doc:
            view = FreeCADGui.activeDocument().ActiveView

            if not view:
                print("No view active, cannot make thumbnail from data")
                return None

            view.viewFront()
            view.fitAll()
            view.setAxisCross(False)

            # Create a temporary file path for the output PNG
            with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as temp_file:
                temp_png_path = pathlib.Path(temp_file.name)

            view.saveImage(str(temp_png_path), w, h, "Transparent")

            # Read the PNG bytes
            with open(temp_png_path, "rb") as f:
                png_bytes = f.read()

            return png_bytes

    except Exception as e:
        print(f"Error creating thumbnail from data: {e}")
        return None

    finally:
        # Clean up temporary PNG file
        if temp_png_path and temp_png_path.exists():
            os.remove(temp_png_path)

	# SPDX-License-Identifier: LGPL-2.1-or-later

	# ***************************************************************************
	# * Copyright (c) 2025 Samuel Abels <knipknap@gmail.com> *
	# * *
	# * This program is free software; you can redistribute it and/or modify *
	# * it under the terms of the GNU Lesser General Public License (LGPL) *
	# * as published by the Free Software Foundation; either version 2 of *
	# * the License, or (at your option) any later version. *
	# * for detail see the LICENCE text file. *
	# * *
	# * 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 Library General Public License for more details. *
	# * *
	# * You should have received a copy of the GNU Library General Public *
	# * License along with this program; if not, write to the Free Software *
	# * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
	# * USA *
	# * *
	# ***************************************************************************
	import pathlib
	from typing import Optional
	import FreeCAD
	import tempfile
	import os
	from .doc import ShapeDocFromBytes


	_svg_ns = {"s": "http://www.w3.org/2000/svg"}


	def file_is_newer(reference: pathlib.Path, file: pathlib.Path):
	return reference.stat().st_mtime > file.stat().st_mtime


	def create_thumbnail(filepath: pathlib.Path, w: int = 200, h: int = 200) -> Optional[pathlib.Path]:
	if not FreeCAD.GuiUp:
	return None

	try:
	import FreeCADGui
	except ImportError:
	raise RuntimeError("Error: Could not load UI - is it up?")

	doc = FreeCAD.openDocument(str(filepath))
	view = FreeCADGui.activeDocument().ActiveView
	out_filepath = filepath.with_suffix(".png")
	if not view:
	print("No view active, cannot make thumbnail for {}".format(filepath))
	return

	view.viewFront()
	view.fitAll()
	view.setAxisCross(False)
	view.saveImage(str(out_filepath), w, h, "Transparent")

	FreeCAD.closeDocument(doc.Name)
	return out_filepath


	def create_thumbnail_from_data(shape_data: bytes, w: int = 200, h: int = 200) -> Optional[bytes]:
	"""
	Create a thumbnail icon from shape data bytes using a temporary document.

	Args:
	shape_data (bytes): The raw bytes of the shape file (.FCStd).
	w (int): Width of the thumbnail.
	h (int): Height of the thumbnail.

	Returns:
	Optional[bytes]: PNG image bytes, or None if generation fails.
	"""
	if not FreeCAD.GuiUp:
	return None

	try:
	import FreeCADGui
	except ImportError:
	raise RuntimeError("Error: Could not load UI - is it up?")

	temp_png_path = None
	try:
	with ShapeDocFromBytes(shape_data) as doc:
	view = FreeCADGui.activeDocument().ActiveView

	if not view:
	print("No view active, cannot make thumbnail from data")
	return None

	view.viewFront()
	view.fitAll()
	view.setAxisCross(False)

	# Create a temporary file path for the output PNG
	with tempfile.NamedTemporaryFile(suffix=".png", delete=False) as temp_file:
	temp_png_path = pathlib.Path(temp_file.name)

	view.saveImage(str(temp_png_path), w, h, "Transparent")

	# Read the PNG bytes
	with open(temp_png_path, "rb") as f:
	png_bytes = f.read()

	return png_bytes

	except Exception as e:
	print(f"Error creating thumbnail from data: {e}")
	return None

	finally:
	# Clean up temporary PNG file
	if temp_png_path and temp_png_path.exists():
	os.remove(temp_png_path)