from __future__ import annotations

from pathlib import Path
import sys
from typing import Any

import pytest
import tomli_w

from vibe.core import config_path


def get_base_config() -> dict[str, Any]:
    return {
        "active_model": "devstral-latest",
        "providers": [
            {
                "name": "mistral",
                "api_base": "https://api.mistral.ai/v1",
                "api_key_env_var": "MISTRAL_API_KEY",
                "backend": "mistral",
            }
        ],
        "models": [
            {
                "name": "mistral-vibe-cli-latest",
                "provider": "mistral",
                "alias": "devstral-latest",
            }
        ],
    }


@pytest.fixture(autouse=True)
def config_dir(
    monkeypatch: pytest.MonkeyPatch, tmp_path_factory: pytest.TempPathFactory
) -> Path:
    tmp_path = tmp_path_factory.mktemp("vibe")
    config_dir = tmp_path / ".vibe"
    config_dir.mkdir(parents=True, exist_ok=True)
    config_file = config_dir / "config.toml"
    config_file.write_text(tomli_w.dumps(get_base_config()), encoding="utf-8")

    monkeypatch.setattr(config_path, "_DEFAULT_VIBE_HOME", config_dir)
    return config_dir


@pytest.fixture(autouse=True)
def _mock_api_key(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setenv("MISTRAL_API_KEY", "mock")


@pytest.fixture(autouse=True)
def _mock_platform(monkeypatch: pytest.MonkeyPatch) -> None:
    """Mock platform to be Linux with /bin/sh shell for consistent test behavior.

    This ensures that platform-specific system prompt generation is consistent
    across all tests regardless of the actual platform running the tests.
    """
    monkeypatch.setattr(sys, "platform", "linux")
    monkeypatch.setenv("SHELL", "/bin/sh")