#!/usr/bin/env python3
"""PRE-Backup Hotfix Lizenz-Erststart-Blocker 1.3.14."""
from __future__ import annotations

import shutil
import subprocess
from datetime import datetime
from pathlib import Path

ROOT = Path(__file__).resolve().parent
TS = datetime.now().strftime("%Y%m%d_%H%M%S")
BACKUP = ROOT / f"backup_hotfix_license_first_start_blocker_{TS}"
BACKUP.mkdir(parents=True, exist_ok=True)

FILES = [
    "basis14.py",
    "aza_start_panel.py",
    "aza_version.py",
    "version.json",
    "release/version.json",
]
for rel in FILES:
    src = ROOT / rel
    if src.is_file():
        dst = BACKUP / rel
        dst.parent.mkdir(parents=True, exist_ok=True)
        shutil.copy2(src, dst)

for name, cmd in [
    ("git_status_before.txt", ["git", "status", "--short"]),
    ("git_diff_stat_before.txt", ["git", "diff", "--stat"]),
    ("git_diff_before.patch", ["git", "diff"]),
]:
    r = subprocess.run(cmd, cwd=ROOT, capture_output=True, text=True, check=False)
    (BACKUP / name).write_text(r.stdout + r.stderr, encoding="utf-8")

(BACKUP / "README_RESTORE.txt").write_text(
    f"""WIEDERHERSTELLUNG backup_hotfix_license_first_start_blocker
Erstellt: {TS}
Projektroot: {ROOT}

1. Dateien aus diesem Backup ins Projektroot kopieren (ueberschreibt Hotfix-Aenderungen)
2. Bei Bedarf aza_version.py / release/version.json auf 1.3.13 zuruecksetzen
3. Git: git_status_before.txt, git_diff_before.patch
""",
    encoding="utf-8",
)
print(f"BACKUP_DIR={BACKUP}")