#! /usr/bin/env python3
"""MAI_processing — Multiple Aperture Interferometry (SCAFFOLD).

Python port of csh MAI_processing.csh. Specialized multi-aperture InSAR
processing (forward-look + backward-look apertures combined to derive
along-track displacement). Not yet implemented.

Usage:  see MAI_processing.csh for full CLI (186 csh lines).
"""
import sys


def MAI_processing():
    sys.exit(
        "PLAN Phase 5 scaffold — not yet implemented (186 csh lines).\n"
        "Refer to gmtsar/csh/MAI_processing.csh for the legacy CLI."
    )


if __name__ == "__main__":
    MAI_processing()
