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

import bpy


def main(output):
    bpy.ops.wm.read_factory_settings(use_empty=True)
    scene = bpy.context.scene
    scene.name = "WBV2P2001Scene"
    root = scene.collection

    collection = bpy.data.collections.new("WBV2P2001OutlinerCollection")
    root.children.link(collection)
    mesh = bpy.data.meshes.new("WBV2P2001StableMesh")
    mesh.from_pydata(
        [(-1, -1, 0), (1, -1, 0), (0, 1, 0)],
        [],
        [(0, 1, 2)],
    )
    mesh.update()
    obj = bpy.data.objects.new("WBV2P2001SelectedObject", mesh)
    collection.objects.link(obj)
    bpy.context.view_layer.objects.active = obj
    obj.select_set(True)

    # Keep the standard workspace/screen in the file so editorWorkflow has a
    # real context while the data tree remains deliberately minimal.
    bpy.ops.wm.save_as_mainfile(filepath=str(output.resolve()), check_existing=False, compress=True)


if __name__ == "__main__":
    arguments = sys.argv[sys.argv.index("--") + 1 :]
    if len(arguments) != 1:
        raise SystemExit("usage: blender -b --factory-startup --python WBV2-P2-001.py -- OUTPUT")
    main(pathlib.Path(arguments[0]))