"""Critique 2: what happens when the README's append steps are done in a file that has its own doors (the ship).
A new empty file gets two stand-in doors named like the ship's, then the README's collections are appended from
DoorRobotArm.blend. Where do the drivers point afterwards? Nothing is saved.

  blender -b --factory-startup --python previews/critique2/crit2_append_test.py -- <out.json>
"""
import json
import os
import sys

import bpy

OUT = sys.argv[sys.argv.index("--") + 1]
HERE = os.path.dirname(os.path.abspath(__file__))
SRC = os.path.join(os.path.dirname(os.path.dirname(HERE)), "DoorRobotArm.blend")
bpy.ops.wm.read_factory_settings(use_empty=True)
sc = bpy.context.scene
for n in ("Moonpool_Door_Aft", "Moonpool_Door_Fore"):
    o = bpy.data.objects.new(n, None)          # the ship's own doors (stand-ins)
    sc.collection.objects.link(o)
want = ["DoorArm | version A", "DoorArm | version B", "DoorArm | rail kit", "DoorArm | solver (hidden)",
        "DoorArm | controls"]
with bpy.data.libraries.load(SRC, link=False) as (src, dst):
    dst.collections = [c for c in src.collections if c in want]
for c in dst.collections:
    if c is not None:
        sc.collection.children.link(c)
targets = {}
for o in bpy.data.objects:
    ad = o.animation_data
    if not ad:
        continue
    for fc in ad.drivers:
        for v in fc.driver.variables:
            for t in v.targets:
                if t.id is not None and t.id.name.startswith("Moonpool_Door"):
                    targets[t.id.name] = targets.get(t.id.name, 0) + 1
R = {"driver_targets_named_like_doors": targets,
     "door_objects_now_in_file": sorted(o.name for o in bpy.data.objects if o.name.startswith("Moonpool_Door")),
     "door_copies_in_a_scene": sorted(o.name for o in bpy.data.objects if o.name.startswith("Moonpool_Door") and o.users_scene),
     "objects_appended": len(bpy.data.objects)}
with open(OUT, "w") as fh:
    json.dump(R, fh, indent=1)
print("[crit2] append test", json.dumps(R), flush=True)