"""Door robot arm: the doors' own animation sampled every frame 1-120 (and every quarter frame) -> build/door_path.json,
so the fit (dra_fit.py) can run in plain Python.

    blender -b --factory-startup --python build/dra_door_path.py -- <file.blend>
"""
import os
import sys
import json
import bpy

HERE = os.path.dirname(os.path.abspath(__file__))
ARGS = sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else []
bpy.ops.wm.open_mainfile(filepath=ARGS[0] if ARGS else os.path.join(os.path.dirname(HERE), "DoorRobotArm.blend"))
sf = bpy.data.scenes["DoorArm | Ship fit"]
if bpy.context.window_manager.windows:
    bpy.context.window_manager.windows[0].scene = sf
out = {}
for key, nm in (("AFT", "Moonpool_Door_Aft"), ("FORE", "Moonpool_Door_Fore")):
    ob = bpy.data.objects[nm]
    pts = []
    for q in range(4, 120 * 4 + 1):
        f = q / 4
        sf.frame_set(int(f), subframe=f - int(f))
        t = ob.matrix_world.translation
        pts.append([round(f, 2), round(t.x, 6), round(t.y, 6), round(t.z, 6)])
    out[key] = pts
sf.frame_set(1)
with open(os.path.join(HERE, "door_path.json"), "w") as fh:
    json.dump(out, fh)
print("[dp] written", {k: (v[0], v[len(v) // 2], v[-1]) for k, v in out.items()}, flush=True)