"""Critique 2: has the ship changed since the context copy (13:32)? Read-only: both files are opened, never saved.
For each of the copied context objects: world matrix, vertex count, world bounds, and the doors' keyframes; compared
between models/M_Ship_v2_interior_season2.blend and source/ship_context_2026-10-16.blend. Also lists ship objects
near the pockets' upper rails (other mechanisms that ride there).

  blender -b --factory-startup --python previews/critique2/crit2_ship_vs_context.py -- <out.json>
"""
import json
import os
import sys

import bpy
from mathutils import Vector

OUT = sys.argv[sys.argv.index("--") + 1]
HERE = os.path.dirname(os.path.abspath(__file__))
ROOT = os.path.dirname(os.path.dirname(HERE))
SHIP = os.path.normpath(os.path.join(ROOT, "..", "M_Ship_v2_interior_season2.blend"))
CTX = os.path.join(ROOT, "source", "ship_context_2026-10-16.blend")
NAMES = ["Moonpool_Door_Aft", "Moonpool_Door_Fore", "Pocket AFT | upper rail", "Pocket FORE | upper rail",
         "Pocket AFT | conformal closed end", "Pocket FORE | conformal closed end", "Moonpool | deck around open well",
         "Moonpool | hull lining", "Moonpool | curved dry basin channel", "Moonpool | titanium aperture rim",
         "Moonpool | docking lamp", "Moonpool | docking lamp.001", "Moonpool | recessed docking lamp housing",
         "Moonpool | recessed docking lamp housing.001"]


def keys(o):
    ad = o.animation_data
    if not ad or not ad.action:
        return None
    try:
        from bpy_extras.anim_utils import action_get_channelbag_for_slot
        cb = action_get_channelbag_for_slot(ad.action, ad.action_slot)
        fcs = cb.fcurves if cb else []
    except Exception:
        fcs = getattr(ad.action, "fcurves", [])
    out = {}
    for fc in fcs:
        out["%s[%d]" % (fc.data_path, fc.array_index)] = [[round(k.co.x, 2), round(k.co.y, 4)] for k in fc.keyframe_points]
    return out


def gather(path):
    bpy.ops.wm.open_mainfile(filepath=path, load_ui=False)
    dg = bpy.context.evaluated_depsgraph_get()
    res = {}
    for n in NAMES:
        o = bpy.data.objects.get(n)
        if o is None:
            res[n] = None
            continue
        ev = o.evaluated_get(dg) if o.name in bpy.context.scene.objects else o
        M = ev.matrix_world
        bb = [M @ Vector(c) for c in o.bound_box]
        res[n] = {"loc": [round(x, 4) for x in M.translation], "rot": [round(x, 4) for x in M.to_euler()],
                  "scale": [round(x, 4) for x in M.to_scale()],
                  "verts": len(o.data.vertices) if o.type == 'MESH' else None,
                  "bounds": [[round(min(p[i] for p in bb), 4) for i in range(3)], [round(max(p[i] for p in bb), 4) for i in range(3)]],
                  "keys": keys(o), "mods": [m.type for m in o.modifiers],
                  "basis_loc": [round(x, 4) for x in o.location], "parent": o.parent.name if o.parent else None,
                  "in_scene": o.name in bpy.context.scene.objects}
    near = []
    for o in bpy.data.objects:
        if o.name in NAMES or o.type not in ('MESH', 'EMPTY', 'ARMATURE', 'CURVE'):
            continue
        p = (o.evaluated_get(dg) if o.name in bpy.context.scene.objects else o).matrix_world.translation
        for x0, x1 in ((-9.2, -2.4), (8.5, 15.3)):
            if x0 <= p.x <= x1 and -7.2 <= p.y <= -4.3 and -5.5 <= p.z <= -3.3:
                near.append([o.name, [round(c, 2) for c in p], o.hide_viewport, o.hide_render,
                             [c.name for c in o.users_collection][:2]])
    res["_objects_near_the_upper_rails"] = sorted(near)[:80]
    return res


ship = gather(SHIP)
ctx = gather(CTX)
diff = {}
for n in NAMES:
    a, b = ship.get(n), ctx.get(n)
    if a != b:
        diff[n] = {"ship": a, "context": b}
R = {"ship_file": SHIP, "differences": diff, "ship_objects_near_rails": ship["_objects_near_the_upper_rails"],
     "context_objects_near_rails": ctx["_objects_near_the_upper_rails"]}
with open(OUT, "w") as fh:
    json.dump(R, fh, indent=1)
print("[crit2] ship vs context written; differing objects:", list(diff), flush=True)