from __future__ import annotations
import os
from pathlib import Path
from typing import List, Tuple


def discover_playbooks(root: Path, data_subdir: str = "data") -> List[Tuple[str, Path, int]]:
    """
    Liefert Liste aus (Display-Text, voller Pfad, Level).
    Ignoriert das data-Verzeichnis auf oberster Ebene.
    """
    playbooks: List[Tuple[str, Path, int]] = []
    if not root.exists():
        return playbooks

    for dirpath, dirnames, filenames in os.walk(root):
        path = Path(dirpath)
        # ignore top-level data dir
        if path.parent == root and path.name == data_subdir:
            dirnames[:] = []
            continue

        rel = path.relative_to(root)
        level = 0 if rel == Path(".") else len(rel.parts)
        for fn in filenames:
            if fn.endswith(".yml") or fn.endswith(".yaml"):
                full = path / fn
                indent = "  " * level
                display = f"{indent}{fn}"
                playbooks.append((display, full, level))
    return playbooks