"""Pytest configuration and fixtures."""

from collections.abc import Generator
from pathlib import Path

import pytest

from aegis_gitea_mcp.audit import reset_audit_logger
from aegis_gitea_mcp.auth import reset_validator
from aegis_gitea_mcp.config import reset_settings
from aegis_gitea_mcp.oauth import reset_oauth_validator
from aegis_gitea_mcp.observability import reset_metrics_registry
from aegis_gitea_mcp.policy import reset_policy_engine
from aegis_gitea_mcp.rate_limit import reset_rate_limiter


@pytest.fixture(autouse=True)
def reset_globals(tmp_path: Path, monkeypatch: pytest.MonkeyPatch) -> Generator[None, None, None]:
    """Reset global singletons between tests and set up temp audit log."""
    # Reset singletons before each test to ensure clean state
    reset_settings()
    reset_audit_logger()
    reset_validator()
    reset_oauth_validator()
    reset_policy_engine()
    reset_rate_limiter()
    reset_metrics_registry()

    # Use temporary directory for audit logs in tests
    audit_log_path = tmp_path / "audit.log"
    monkeypatch.setenv("AUDIT_LOG_PATH", str(audit_log_path))

    yield

    # Also reset after test for cleanup
    reset_settings()
    reset_audit_logger()
    reset_validator()
    reset_oauth_validator()
    reset_policy_engine()
    reset_rate_limiter()
    reset_metrics_registry()


@pytest.fixture
def mock_env(monkeypatch: pytest.MonkeyPatch) -> None:
    """Set up mock environment variables for testing (standard API key mode)."""
    monkeypatch.setenv("GITEA_URL", "https://gitea.example.com")
    monkeypatch.setenv("GITEA_TOKEN", "test-token-12345")
    monkeypatch.setenv("ENVIRONMENT", "test")
    monkeypatch.setenv("MCP_HOST", "127.0.0.1")
    monkeypatch.setenv("MCP_PORT", "8080")
    monkeypatch.setenv("LOG_LEVEL", "DEBUG")
    monkeypatch.setenv("MCP_API_KEYS", "a" * 64)
    monkeypatch.setenv("STARTUP_VALIDATE_GITEA", "false")


@pytest.fixture
def mock_env_oauth(monkeypatch: pytest.MonkeyPatch) -> None:
    """Set up mock environment variables for OAuth mode testing."""
    monkeypatch.setenv("GITEA_URL", "https://gitea.example.com")
    monkeypatch.setenv("ENVIRONMENT", "test")
    monkeypatch.setenv("MCP_HOST", "127.0.0.1")
    monkeypatch.setenv("MCP_PORT", "8080")
    monkeypatch.setenv("LOG_LEVEL", "DEBUG")
    monkeypatch.setenv("OAUTH_MODE", "true")
    monkeypatch.setenv("GITEA_OAUTH_CLIENT_ID", "test-client-id")
    monkeypatch.setenv("GITEA_OAUTH_CLIENT_SECRET", "test-client-secret")
    monkeypatch.setenv("STARTUP_VALIDATE_GITEA", "false")