# tests/conftest.py — Shared fixtures for ObsiGate test suite
import os
import sys
import tempfile
from pathlib import Path

import pytest
from fastapi.testclient import TestClient

# Add project root to path so we can import backend modules
sys.path.insert(0, str(Path(__file__).resolve().parent.parent))


@pytest.fixture(autouse=True)
def _clean_env():
    """Ensure no vault env vars leak between tests — but preserve test vault config."""
    saved = {}
    # Only clean VAULT_N/DIR_N vars, NOT OBSIGATE_ vars needed by the app
    for key in list(os.environ.keys()):
        if key.startswith(("VAULT_", "DIR_")):
            saved[key] = os.environ.pop(key)
    yield
    # Restore
    for key in list(os.environ.keys()):
        if key.startswith(("VAULT_", "DIR_")):
            if key not in saved:
                os.environ.pop(key)
    os.environ.update(saved)


@pytest.fixture
def test_vault_dir(tmp_path: Path) -> str:
    """Create a temporary Obsidian-style vault with markdown files."""
    vault = tmp_path / "TestVault"
    vault.mkdir()

    # Simple markdown file
    (vault / "note1.md").write_text(
        "---\ntags:\n  - python\n  - tutorial\ntitle: Introduction à Python\n---\n"
        "# Introduction à Python\nPython est un langage de programmation moderne.\n"
        "Il supporte la programmation orientée objet et fonctionnelle.\n"
        "La syntaxe de Python est claire et lisible.\n",
        encoding="utf-8",
    )

    # File with inline tags and wikilinks
    (vault / "note2.md").write_text(
        "---\ntags:\n  - docker\nstatut: actif\nauteur: Jean Dupont\ntitle: Docker Guide\n---\n"
        "# Docker Guide\nDocker est une plateforme de conteneurisation.\n"
        "Voir aussi [[Introduction à Python]] pour les scripts.\n"
        "Et aussi [[Proxmox Setup]] pour l'infrastructure.\n"
        "Un tag inline #devops pour le fun.\n",
        encoding="utf-8",
    )

    # File in subdirectory
    sub = vault / "Projets"
    sub.mkdir()
    (sub / "projet.md").write_text(
        "---\ntags:\n  - projet\n  - python\ntitle: Mon Projet\n---\n"
        "# Mon Projet\nUtilise Docker et Python.\n"
        "Voir [[Introduction à Python]].\n",
        encoding="utf-8",
    )

    # Non-markdown file
    (vault / "config.json").write_text('{"key": "value"}', encoding="utf-8")

    # File with accents in title
    (vault / "café_crème.md").write_text(
        "---\ntitle: Café Crème\n---\n# Café Crème\nUn bon café.\n",
        encoding="utf-8",
    )

    return str(vault)


@pytest.fixture
def app_with_vault(test_vault_dir: str):
    """Create a FastAPI TestClient with a test vault configured.

    Imports app lazily to avoid side-effects at module load time.
    Disables auth and watcher for testing.
    """
    os.environ["VAULT_1_NAME"] = "TestVault"
    os.environ["VAULT_1_PATH"] = test_vault_dir
    os.environ["OBSIGATE_AUTH_ENABLED"] = "false"

    # Prevent watcher from starting (not needed for tests)
    import backend.main
    backend.main._load_config = lambda: {"watcher_enabled": False}

    from backend.main import app
    from backend.indexer import build_index, vault_config, index
    import asyncio

    # Build the index
    loop = asyncio.new_event_loop()
    asyncio.set_event_loop(loop)
    loop.run_until_complete(build_index())

    # Build inverted index for search
    from backend.search import init_inverted_index, _inverted_index
    init_inverted_index()

    client = TestClient(app)
    return client


@pytest.fixture
def client(app_with_vault):
    """Alias for app_with_vault."""
    return app_with_vault