# generat3D - evaluate Daz DSON scenes and write .dbz files
# Copyright (C) 2026 Danilo M. <danix@danix.xyz>
#
# 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, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

import argparse
import sys
from pathlib import Path

from . import Error
from .config import library_roots
from .dbz import build, write
from .library import Library
from .scene import load


def main(argv=None):
    ap = argparse.ArgumentParser(
        prog="generat3d",
        description="Evaluate a Daz scene and write the .dbz file for Diffeomorphic.")
    ap.add_argument("scene", type=Path, help="the .duf scene")
    ap.add_argument("-L", dest="roots", action="append", default=[], metavar="ROOT",
                    help="content library root, repeatable, searched in order; "
                         "replaces library_roots from the config file")
    ap.add_argument("-o", dest="out", type=Path, metavar="OUT.dbz",
                    help="output file (default: the scene path with .dbz)")
    args = ap.parse_args(argv)
    try:
        roots = library_roots(args.roots)
        scene = load(args.scene, Library(roots))
        write(build(scene, roots), args.out or args.scene.with_suffix(".dbz"))
    except Error as e:
        print(f"generat3d: error: {e}", file=sys.stderr)
        return 1
    return 0


if __name__ == "__main__":
    sys.exit(main())