# Import the hair cards as their own skeletal mesh (0.2.2).
#
#   blender -b Art/blender/character/character-2026-11-07.blend \
#       --python Tools/character_hair_build.py -- --out /tmp/gigline/character-hair.fbx
#   <engine>/Engine/Binaries/Linux/UnrealEditor-Cmd <uproject> -run=pythonscript \
#     -script=<repo>/Tools/ue_character_hair_import.py -nullrhi -unattended -nopause -stdout
#
# The hair is a separate asset on purpose: Unreal collapses the second material slot
# when hair is joined into the body mesh, so a card system has to be its own object
# (which is what the character-artist skill asks for anyway).
#
# Result file: /tmp/gigline/character-hair-import.txt

import unreal

SRC = "/tmp/gigline/character-hair.fbx"
DEST = "/Game/Test/Character"
NAME = "CharacterHair"
RESULT = "/tmp/gigline/character-hair-import.txt"
lines = []


def log(msg):
    lines.append(str(msg))
    unreal.log(str(msg))


def main():
    task = unreal.AssetImportTask()
    task.filename = SRC
    task.destination_path = DEST
    task.destination_name = NAME
    task.automated = True
    task.save = True
    task.replace_existing = True

    ui = unreal.FbxImportUI()
    ui.import_mesh = True
    ui.import_as_skeletal = True
    ui.import_animations = False
    ui.import_materials = True
    ui.import_textures = False
    ui.skeletal_mesh_import_data.import_uniform_scale = 1.0
    task.options = ui
    unreal.AssetToolsHelpers.get_asset_tools().import_asset_tasks([task])

    mesh = unreal.EditorAssetLibrary.load_asset(f"{DEST}/{NAME}")
    if mesh is None:
        log(f"MISSING {DEST}/{NAME}")
        lines.append("VERDICT: FAIL")
        return
    mats = mesh.get_editor_property("materials")
    log(f"{NAME}: {len(mats)} material slot(s)")
    for i, m in enumerate(mats):
        face = m.get_editor_property("material_interface")
        log(f"  slot {i}: {face.get_name() if face else 'None'}")
    lines.append("VERDICT: PASS")


try:
    main()
except Exception as exc:  # noqa: BLE001
    import traceback
    log(f"FAILED: {type(exc).__name__}: {exc}")
    log(traceback.format_exc())
    lines.append("VERDICT: FAIL")

unreal.EditorLoadingAndSavingUtils.save_dirty_packages(True, True)
with open(RESULT, "w") as f:
    f.write("\n".join(lines) + "\n")