"""Shared bootstrap for book-translation regression tests."""

import sys
from pathlib import Path
from types import ModuleType


PROJECT_ROOT = Path(__file__).resolve().parents[1]
if str(PROJECT_ROOT) not in sys.path:
    sys.path.insert(0, str(PROJECT_ROOT))

try:
    import openai  # noqa: F401
except ImportError:
    openai_stub = ModuleType("openai")
    openai_stub.OpenAI = object
    sys.modules["openai"] = openai_stub

try:
    import tiktoken  # noqa: F401
except ImportError:
    tiktoken_stub = ModuleType("tiktoken")
    encoder = type("Enc", (), {"encode": lambda self, text: list(text or "")})
    tiktoken_stub.encoding_for_model = lambda _model: encoder()
    tiktoken_stub.get_encoding = lambda _name: encoder()
    sys.modules["tiktoken"] = tiktoken_stub