#!/usr/bin/env python3
import pathlib
import sys

import bpy


OBJECT_NAME = "WebGapAssetMarkSingleObject"
MESH_NAME = "WebGapAssetMarkSingleMesh"


def main():
    arguments = sys.argv[sys.argv.index("--") + 1 :]
    if len(arguments) != 1:
        raise SystemExit(
            "usage: blender -b --factory-startup --python M16-GAP-00280.py -- OUTPUT"
        )
    output = pathlib.Path(arguments[0]).resolve()
    bpy.ops.wm.read_factory_settings(use_empty=True)
    mesh = bpy.data.meshes.new(MESH_NAME)
    mesh.from_pydata(((-1.0, 0.0, 0.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0)), (), ((0, 1, 2),))
    obj = bpy.data.objects.new(OBJECT_NAME, mesh)
    bpy.context.scene.collection.objects.link(obj)

    # Background mode has no editor ID context; seed the persisted single-asset record.
    obj.asset_mark()
    obj.asset_data.author = "M16 Fixture"
    obj.asset_data.description = "Asset mark single operator fixture"
    obj.asset_data.tags.new("operator-mark-single")

    bpy.ops.wm.save_as_mainfile(filepath=str(output), check_existing=False, compress=True)


if __name__ == "__main__":
    main()