#!/usr/bin/env python3
"""Delete one channel's {channel_name}/ tree; leave shared details/ and lab_seeds.json intact."""

from __future__ import annotations

import argparse
import json
import shutil
import sys
from pathlib import Path

import build as xxbb_build

RESULT_MARKER = "CORUNA_BUILD_RESULT "


def main() -> int:
    parser = argparse.ArgumentParser(description="Remove {channel_name}/ from artifact root")
    parser.add_argument("--channel-name", required=True)
    parser.add_argument(
        "--artifact-root",
        type=Path,
        default=xxbb_build.PROJECT_ROOT / "public",
        help="shared artifact root (default: coruna-lab/public)",
    )
    args = parser.parse_args()

    channel_name = xxbb_build.validate_channel_name(args.channel_name)
    artifact_root = args.artifact_root.resolve()
    channel_dir = artifact_root / xxbb_build.CHANNEL_ROOT / channel_name
    removed = False
    if channel_dir.is_dir():
        shutil.rmtree(channel_dir)
        removed = True
        print(f"removed {channel_dir}")
    else:
        print(f"missing {channel_dir} (noop)")

    result = {
        "status": "deleted" if removed else "absent",
        "channel_name": channel_name,
        "artifact_root": str(artifact_root),
        "removed": removed,
    }
    print(RESULT_MARKER + json.dumps(result, separators=(",", ":")), flush=True)
    return 0


if __name__ == "__main__":
    raise SystemExit(main())