"""Read imported world geometry, transforms and bind matrices for rig diagnosis."""
import json
import sys
from pathlib import Path
import bpy
from mathutils import Vector

for arg in sys.argv[sys.argv.index('--') + 1:]:
    bpy.ops.wm.read_factory_settings(use_empty=True)
    path = Path(arg)
    if path.suffix.lower() == '.fbx':
        bpy.ops.import_scene.fbx(filepath=str(path))
    else:
        bpy.ops.import_scene.gltf(filepath=str(path))
    print('FILE', str(path))
    for o in bpy.data.objects:
        if o.type not in ('MESH', 'ARMATURE'):
            continue
        print('OBJECT', o.name, o.type, 'parent', o.parent.name if o.parent else None,
              'matrix', [list(v) for v in o.matrix_world])
        if o.type == 'MESH':
            points = [o.matrix_world @ v.co for v in o.data.vertices]
            mn = [min(p[i] for p in points) for i in range(3)]
            mx = [max(p[i] for p in points) for i in range(3)]
            print('GEOMETRY', len(points), 'min', mn, 'max', mx,
                  'modifiers', [(m.type, m.object.name if getattr(m, 'object', None) else None) for m in o.modifiers])
            links=[[] for _ in points]
            for edge in o.data.edges:
                a,b=edge.vertices;links[a].append(b);links[b].append(a)
            unseen=set(range(len(points)));components=[]
            while unseen:
                stack=[unseen.pop()];indices=[]
                while stack:
                    v=stack.pop();indices.append(v)
                    for n in links[v]:
                        if n in unseen:unseen.remove(n);stack.append(n)
                components.append(indices)
            for indices in sorted(components,key=len,reverse=True)[:12]:
                print('COMPONENT',len(indices),'min',[min(points[v][i] for v in indices) for i in range(3)],
                      'max',[max(points[v][i] for v in indices) for i in range(3)])
        else:
            print('BONES', len(o.data.bones))
            for b in o.data.bones:
                print('BONE', b.name, 'parent', b.parent.name if b.parent else None, 'worldhead', list(o.matrix_world @ b.head_local),
                      'worldtail', list(o.matrix_world @ b.tail_local))