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

import bpy


def main(output: pathlib.Path) -> None:
    bpy.ops.wm.read_factory_settings(use_empty=True)
    settings = bpy.data.particles.new("WebGapParticleSettings")
    settings.use_fake_user = True
    settings.type = "EMITTER"
    settings.emit_from = "FACE"
    settings.physics_type = "NEWTON"
    settings.distribution = "JIT"
    settings.count = 128
    settings.frame_start = 4.0
    settings.frame_end = 96.0
    settings.lifetime = 32.0
    settings.particle_size = 0.125
    settings.display_size = 0.25
    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 --python M16-GAP-00018.py -- OUTPUT")
    main(pathlib.Path(arguments[0]))