"""Root pytest configuration.

This file exists at the repository root so pytest imports it before
``tests/conftest.py`` and before any test module imports the MindRoom CLI.
"""

import os
import tempfile
from pathlib import Path

# Rich resolves color support once, when a `Console` is constructed, and the CLI builds
# its consoles at import time (`mindroom.cli.config`, `.desktop`, `.service`), so no
# fixture can influence them. A shell that exports `FORCE_COLOR` (Claude Code, Codex and
# several terminals do) makes Rich force a color terminal even though
# `typer.testing.CliRunner` captures to a non-tty buffer, baking ANSI escapes into output
# that tests assert on and parse as YAML.
#
# Pinning a dumb terminal is the one switch that settles it, because Rich gates all three
# sources of noise on `Console.is_dumb_terminal`: color (`_detect_color_system` returns
# `None`), control codes (`Console.control` writes nothing) and width (`Console.size`
# returns a fixed 80x25 instead of the invoking terminal's size). It wins over
# `FORCE_COLOR` and over Typer's own `force_terminal` consoles. Setting `NO_COLOR`
# instead would not do: it strips color but leaves bold and other SGR codes.
os.environ["TERM"] = "dumb"

# pytest-shm moves the temp root to the /dev/shm tmpfs before this file is imported,
# then frees each run's temporary files, tiktoken's downloaded encodings among them.
# Pin its cache to the temp root as it stands now, which survives across runs, so a
# local run neither downloads the encodings again nor needs the network.
if "TIKTOKEN_CACHE_DIR" not in os.environ and "DATA_GYM_CACHE_DIR" not in os.environ:
    os.environ["TIKTOKEN_CACHE_DIR"] = str(Path(tempfile.gettempdir()) / "data-gym-cache")