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

import bpy


ARMATURE_NAME = "WebGapArmatureSelectSimilarArmature"
OBJECT_NAME = "WebGapArmatureSelectSimilarObject"
ACTIVE_BONE = "WebGapArmatureSelectSimilarActive"
SIMILAR_BONE = "WebGapArmatureSelectSimilarSameLength"
DIFFERENT_BONE = "WebGapArmatureSelectSimilarDifferentLength"


def main():
    arguments = sys.argv[sys.argv.index("--") + 1 :]
    if len(arguments) != 1:
        raise SystemExit("usage: blender -b --factory-startup --python M16-GAP-00257.py -- OUTPUT")
    bpy.ops.wm.read_factory_settings(use_empty=True)
    armature = bpy.data.armatures.new(ARMATURE_NAME)
    obj = bpy.data.objects.new(OBJECT_NAME, armature)
    bpy.context.scene.collection.objects.link(obj)
    bpy.context.view_layer.objects.active = obj
    obj.select_set(True)
    bpy.ops.object.mode_set(mode="EDIT")
    active = armature.edit_bones.new(ACTIVE_BONE)
    active.head = (0.0, 0.0, 0.0)
    active.tail = (0.0, 1.0, 0.0)
    similar = armature.edit_bones.new(SIMILAR_BONE)
    similar.head = (2.0, 0.0, 0.0)
    similar.tail = (2.0, 1.0, 0.0)
    different = armature.edit_bones.new(DIFFERENT_BONE)
    different.head = (4.0, 0.0, 0.0)
    different.tail = (4.0, 2.0, 0.0)
    active.select = True
    active.select_head = True
    active.select_tail = True
    for bone in (similar, different):
        bone.select = False
        bone.select_head = False
        bone.select_tail = False
    armature.edit_bones.active = active
    bpy.ops.object.mode_set(mode="OBJECT")
    bpy.ops.wm.save_as_mainfile(
        filepath=str(pathlib.Path(arguments[0]).resolve()), check_existing=False, compress=True
    )


if __name__ == "__main__":
    main()