"""项目级默认配置。

这些值只作为命令行和 Web 界面的默认项。真正运行时仍可通过参数覆盖，
便于把同一套代码迁移到其他患者或其他机器。
"""

from pathlib import Path


PROJECT_ROOT = Path(__file__).resolve().parent

DATA_ROOT = PROJECT_ROOT / "Data"
DEFAULT_FIXED_DICOM_DIR = DATA_ROOT / "患者1-平扫CT"
DEFAULT_MOVING_DICOM_DIR = DATA_ROOT / "患者1-仰头CT"

OUTPUT_ROOT = PROJECT_ROOT / "outputs"
NIFTI_DIR = OUTPUT_ROOT / "nifti"
PREPROCESSED_DIR = OUTPUT_ROOT / "preprocessed"
CHECKPOINT_DIR = OUTPUT_ROOT / "checkpoints"
INFERENCE_DIR = OUTPUT_ROOT / "inference"

DEFAULT_MOVING_NIFTI = PREPROCESSED_DIR / "patient1_moving_preprocessed.nii.gz"
DEFAULT_FIXED_NIFTI = PREPROCESSED_DIR / "patient1_fixed_preprocessed.nii.gz"
DEFAULT_CHECKPOINT = CHECKPOINT_DIR / "vxm_head_ct_patient1.pt"

# VoxelMorph 的 3D U-Net 多次下采样，三维尺寸建议均为 32 的倍数。
DEFAULT_TARGET_SHAPE = (320, 320, 352)  # NIfTI 轴顺序: X, Y, Z
DEFAULT_TARGET_SPACING = (1.0, 1.0, 1.0)  # mm, X/Y/Z

# 颈部软组织/气道观察常用窗口：W=400, L=40。
DEFAULT_WINDOW_WIDTH = 400.0
DEFAULT_WINDOW_LEVEL = 40.0