from pathlib import Path

from app.config import DEFAULT_VAULT_NAME, REGISTERED_VAULTS
from app.command_target import CommandTarget

def vault_for_path(path:Path) -> str|None:
  resolved = path.resolve()
  best_name:str|None = None
  best_len = -1

  for name, vault_path in REGISTERED_VAULTS.items():
    root = Path(vault_path).resolve()
    try:
      resolved.relative_to(root)
    except ValueError:
      continue

    root_len = len(str(root))
    if root_len > best_len:
      best_name = name
      best_len = root_len

  return best_name

def vault_root_for_target(target:CommandTarget, cwd:Path) -> Path:
  if target.vault and target.vault in REGISTERED_VAULTS:
    return Path(REGISTERED_VAULTS[target.vault]).resolve()

  vault_name = vault_for_path(cwd) or DEFAULT_VAULT_NAME
  return Path(REGISTERED_VAULTS.get(vault_name, cwd)).resolve()