import argparse
import os
import subprocess
import sys
from pathlib import Path

MINIMUM_REPORT_SEVERTIY = "medium"
MINIMUM_FAIL_SEVERTIY = "high"


def parse_args() -> argparse.Namespace:
    parser = argparse.ArgumentParser(description="Run cppcheck on the project")
    parser.add_argument("board", nargs="?", help="Board to check, optional")
    return parser.parse_args()


def main() -> int:
    args = parse_args()
    here = Path(__file__).parent
    project_root = here.parent
    build = project_root / ".build"
    os.chdir(str(build))

    if args.board:
        build = build / args.board
        if not build.exists():
            print(f"Board {args.board} not found")
            return 1
        os.chdir(str(build))
    else:
        # Change to the first subdirectory in .build
        subdirs = [d for d in os.listdir() if os.path.isdir(d)]
        assert (
            len(subdirs) == 1
        ), f"Expected exactly one subdirectory in {build}, instead got {subdirs}"
        if subdirs:
            os.chdir(subdirs[0])

    # Run pio check command
    cp = subprocess.run(
        [
            "pio",
            "check",
            "--skip-packages",
            "--src-filters=+<lib/src/>",
            f"--severity={MINIMUM_REPORT_SEVERTIY}",
            f"--fail-on-defect={MINIMUM_FAIL_SEVERTIY}",
            "--flags",
            "--inline-suppr",
        ],
    )
    return cp.returncode


if __name__ == "__main__":
    sys.exit(main())