#!/usr/bin/env python3
"""Reset lab-root web/ + sync/ from source/, then patch_all --apply (new DGA seeds/domains)."""

from __future__ import annotations

import argparse
import shutil
import subprocess
import sys
from pathlib import Path

TOOLS = Path(__file__).resolve().parent
LAB_ROOT = TOOLS.parent
SOURCE_ROOT = LAB_ROOT / "source"
CAMPAIGN_HASH = "34f5121f572d6742703eb84ec2f866a6"


def _ignore_junk(_dir: str, names: list[str]) -> set[str]:
    skip = {"_bak", "__pycache__", ".DS_Store"}
    return {n for n in names if n in skip or n.endswith(".pyc")}


def replace_tree(src: Path, dst: Path) -> None:
    if dst.exists():
        shutil.rmtree(dst)
    shutil.copytree(src, dst, symlinks=False, ignore=_ignore_junk)


def main() -> int:
    parser = argparse.ArgumentParser(
        description=(
            "Copy source/web + source/sync to coruna-lab root, then run "
            "patch_all.py --apply --root <lab-root> (fresh Deployment/Reporting domains)."
        )
    )
    parser.add_argument(
        "--deployment-seed",
        help="optional; forwarded to patch_all (default: random)",
    )
    parser.add_argument(
        "--reporting-seed",
        help="optional; forwarded to patch_all (default: random)",
    )
    parser.add_argument(
        "-n",
        "--count",
        type=int,
        default=5,
        help="DGA candidates to print per pool (default 5)",
    )
    parser.add_argument(
        "--skip-patch",
        action="store_true",
        help="only copy source trees to lab root; do not run patch_all",
    )
    args = parser.parse_args()

    src_web = SOURCE_ROOT / "web"
    src_sync = SOURCE_ROOT / "sync"
    if not (src_web / CAMPAIGN_HASH).is_dir():
        raise SystemExit(f"missing source campaign: {src_web / CAMPAIGN_HASH}")
    if not src_sync.is_dir():
        raise SystemExit(f"missing source sync: {src_sync}")

    dst_web = LAB_ROOT / "web"
    dst_sync = LAB_ROOT / "sync"

    print("=== reset lab root from source ===")
    print(f"from: {SOURCE_ROOT}")
    print(f"to:   {LAB_ROOT}/{{web,sync}}")
    replace_tree(src_web, dst_web)
    replace_tree(src_sync, dst_sync)
    print(f"copied web/ ({CAMPAIGN_HASH}) + sync/")

    if args.skip_patch:
        print("skip-patch: done (source copy only)")
        return 0

    cmd = [
        sys.executable,
        str(TOOLS / "patch_all.py"),
        "--apply",
        "--root",
        str(LAB_ROOT),
        "-n",
        str(args.count),
    ]
    if args.deployment_seed:
        cmd += ["--deployment-seed", args.deployment_seed]
    if args.reporting_seed:
        cmd += ["--reporting-seed", args.reporting_seed]

    print()
    print("=== patch_all --apply ===")
    print("+", " ".join(cmd), flush=True)
    subprocess.run(cmd, cwd=str(LAB_ROOT), check=True)

    print()
    print("=== ready ===")
    print(f"web:     {dst_web / CAMPAIGN_HASH}")
    print(f"sync:    {dst_sync}")
    print(f"seeds:   {LAB_ROOT / 'out' / 'seeds.json'}")
    print(f"domains: {LAB_ROOT / 'out' / 'domains.json'}")
    print()
    print("serve example:")
    print(f"  cd {LAB_ROOT} && python3 -m http.server 8765 --bind 0.0.0.0")
    return 0


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