"""LiDAR Archaeological Pipeline — detection of archaeological structures from LiDAR data.

Usage:
    python -m lidar_pipeline /path/to/input -o /path/to/output -r 0.5 -v
"""

# Lazy imports to avoid importing heavy dependencies at package import time


def __getattr__(name):
    """Lazy-load heavy submodules only when accessed."""
    if name == 'LidarArchaeoPipeline':
        from .pipeline import LidarArchaeoPipeline
        return LidarArchaeoPipeline
    if name == 'VIZ_STEPS':
        from .pipeline import VIZ_STEPS
        return VIZ_STEPS
    if name == 'main':
        from .cli import main
        return main
    raise AttributeError(f"module {__name__!r} has no attribute {name!r}")