import subprocess
import os
from pathlib import Path


def clone_repo(repo_url: str, target_dir: Path, token: str = None):
    """Klont ein Repository in den Zielordner."""
    if not target_dir.exists():
        target_dir.mkdir(parents=True)

    # URL mit Token (falls nötig)
    if token and "@" not in repo_url:
        repo_url = repo_url.replace("https://", f"https://{token}@")

    result = subprocess.run(
        ["git", "clone", repo_url, str(target_dir)],
        capture_output=True,
        text=True
    )

    # ✅ BERECHTIGUNGEN SETZEN NACH DEM KLOONEN!
    if result.returncode == 0:
        try:
            os.chmod(str(target_dir), 0o755)
            for root, dirs, files in os.walk(str(target_dir)):
                for d in dirs:
                    os.chmod(os.path.join(root, d), 0o755)
                for f in files:
                    os.chmod(os.path.join(root, f), 0o644)
        except Exception as e:
            print(f"Warnung bei Berechtigungen: {e}")

    return {"success": result.returncode == 0, "output": result.stdout, "error": result.stderr}


def unsubscribe_repo(target_dir: Path):
    """Loescht ein abonniertes Projekt."""
    import shutil

    if not target_dir.exists():
        return {"success": False, "error": "Projekt nicht gefunden"}

    try:
        # ✅ ALLE CHANGES MARKIERUNG LÖSCHEN
        changes_marker = target_dir / ".gitea-changes.marker"
        if changes_marker.exists():
            changes_marker.unlink()

        shutil.rmtree(str(target_dir))
        return {"success": True, "message": f"{target_dir.name} erfolgreich geloescht"}
    except Exception as e:
        return {"success": False, "error": str(e)}


def push_changes(repo_path: Path, message: str = "Update 🧠"):
    """Pusht lokale Änderungen ins Repository."""
    result = subprocess.run(
        ["git", "add", "."], cwd=repo_path, capture_output=True, text=True
    )

    if result.returncode != 0:
        return {"success": False, "error": f"git add fehlgeschlagen: {result.stderr}"}

    result = subprocess.run(
        ["git", "commit", "-m", message], cwd=repo_path, capture_output=True, text=True
    )

    if result.returncode != 0 and "nothing to commit" not in result.stderr.lower():
        return {"success": False, "error": f"Commit fehlgeschlagen: {result.stderr}"}

    result = subprocess.run(
        ["git", "push"], cwd=repo_path, capture_output=True, text=True
    )

    return {"success": result.returncode == 0, "output": result.stdout}