"""
Shared fixtures for Cortex test suite.

Key design choices:
  - All file I/O goes to a tmp_path, never touching home/ or real sessions.
  - LLM calls are mocked by default — tests are fast and deterministic.
  - The 'client' fixture patches settings before importing main, so all modules
    see the temp directory.

Home layout mirrors the two-level structure:
  tmp/
    scott/
      persona/
        inara/    ← the default test persona
    holly/
      persona/
        tina/
"""

import json
import pytest
import pytest_asyncio
from pathlib import Path
from unittest.mock import AsyncMock, patch

import httpx
from httpx import ASGITransport


# ---------------------------------------------------------------------------
# Temp home directory
# ---------------------------------------------------------------------------

@pytest.fixture(scope="session")
def home_root(tmp_path_factory) -> Path:
    """A temp home/ dir with minimal user/persona stubs for testing."""
    root = tmp_path_factory.mktemp("home")
    _make_persona(root, "scott", "inara", "Inara", "Scott")
    _make_persona(root, "holly", "tina",  "Tina",  "Holly")
    return root


def _make_persona(root: Path, username: str, persona: str,
                  agent: str, user: str) -> Path:
    p = root / username / "persona" / persona
    p.mkdir(parents=True, exist_ok=True)
    (p / "IDENTITY.md").write_text(f"# {agent}\nTest identity for {agent}.")
    (p / "SOUL.md").write_text(f"# Soul\nTest soul for {agent}.")
    (p / "PROTOCOLS.md").write_text("# Protocols\nBe helpful.")
    (p / "USER.md").write_text(f"# {user}\nTest user profile.")
    (p / "HELP.md").write_text("# Help\nTest help content.")
    (p / "MEMORY_LONG.md").write_text("Not yet populated.")
    (p / "MEMORY_MID.md").write_text("Not yet populated.")
    (p / "MEMORY_SHORT.md").write_text("Not yet populated.")
    (p / "TASKS.json").write_text("[]")
    (p / "CRONS.json").write_text("[]")
    (p / "SCRATCH.md").write_text("")
    (p / "REMINDERS.md").write_text("")
    (p / "sessions").mkdir()
    return p


# ---------------------------------------------------------------------------
# App fixture — patches settings before the ASGI app is started
# ---------------------------------------------------------------------------

@pytest_asyncio.fixture
async def client(home_root, tmp_path):
    """
    HTTPX async test client with a valid session cookie for 'scott'.
    The auth middleware is active but a JWT cookie is pre-set so API tests
    don't need to go through the login flow.
    """
    import config
    import persona as persona_mod

    sessions_dir = tmp_path / "sessions"
    sessions_dir.mkdir()

    with (
        patch.object(config.settings, "home_dir", home_root),
        patch.object(config.settings, "sessions_dir", sessions_dir),
        patch.object(config.settings, "jwt_secret", "test-secret-key-xxxxxxxxxxxxxxxx"),
        patch("scheduler.start"),   # don't run APScheduler in tests
        patch("scheduler.stop"),
    ):
        persona_mod.set_context("scott", "inara")

        from main import app
        from auth_utils import create_token
        token = create_token("scott")

        async with httpx.AsyncClient(
            transport=ASGITransport(app=app),
            base_url="http://test",
            cookies={"cortex_session": token},
        ) as c:
            yield c


# ---------------------------------------------------------------------------
# LLM mock
# ---------------------------------------------------------------------------

@pytest.fixture
def mock_llm():
    """
    Patch complete() at every import site so no real LLM calls are made.
    Each router does `from llm_client import complete`, creating a local reference.
    Patching llm_client.complete alone won't intercept those — patch each site.
    """
    ret = ("Hello, I am a test response.", "claude")
    with (
        patch("routers.chat.complete", new_callable=AsyncMock, return_value=ret),
        patch("routers.nextcloud_talk.complete", new_callable=AsyncMock, return_value=ret),
        patch("routers.google_chat.complete", new_callable=AsyncMock, return_value=ret),
        patch("llm_client.complete", new_callable=AsyncMock, return_value=ret),
    ):
        yield