"""Pytest configuration and shared fixtures."""

import json
import os
import shutil
import tempfile
from pathlib import Path
from unittest.mock import patch

import pytest
from fastapi.testclient import TestClient

from leggen.utils.config import Config

# Create test config before any imports that might load it
_test_config_dir = tempfile.mkdtemp(prefix="leggen_test_")
_test_config_path = Path(_test_config_dir) / "config.toml"

# Create minimal test config
_config_data = {
    "gocardless": {
        "key": "test-key",
        "secret": "test-secret",
        "url": "https://bankaccountdata.gocardless.com/api/v2",
    },
    "database": {"sqlite": True},
    "scheduler": {"sync": {"enabled": True, "hour": 3, "minute": 0}},
}

import tomli_w
with open(_test_config_path, "wb") as f:
    tomli_w.dump(_config_data, f)

# Set environment variables to point to test config BEFORE importing the app
os.environ["LEGGEN_CONFIG_FILE"] = str(_test_config_path)

from leggen.commands.server import create_app


def pytest_configure(config):
    """Pytest hook called before test collection."""
    # Ensure test config is set
    os.environ["LEGGEN_CONFIG_FILE"] = str(_test_config_path)


def pytest_unconfigure(config):
    """Pytest hook called after all tests."""
    # Cleanup test config directory
    if Path(_test_config_dir).exists():
        shutil.rmtree(_test_config_dir)


@pytest.fixture
def temp_config_dir():
    """Create a temporary config directory for testing."""
    with tempfile.TemporaryDirectory() as tmpdir:
        config_dir = Path(tmpdir) / ".config" / "leggen"
        config_dir.mkdir(parents=True, exist_ok=True)
        yield config_dir


@pytest.fixture
def temp_db_path():
    """Create a temporary database file for testing."""
    with tempfile.NamedTemporaryFile(suffix=".db", delete=False) as tmp_file:
        db_path = Path(tmp_file.name)
        yield db_path
    # Clean up the temporary database file after test
    if db_path.exists():
        db_path.unlink()


@pytest.fixture
def mock_config(temp_config_dir, temp_db_path):
    """Mock configuration for testing."""
    config_data = {
        "gocardless": {
            "key": "test-key",
            "secret": "test-secret",
            "url": "https://bankaccountdata.gocardless.com/api/v2",
        },
        "database": {"sqlite": True},
        "scheduler": {"sync": {"enabled": True, "hour": 3, "minute": 0}},
    }

    config_file = temp_config_dir / "config.toml"
    with open(config_file, "wb") as f:
        import tomli_w

        tomli_w.dump(config_data, f)

    # Mock the config path
    with patch.object(Config, "load_config") as mock_load:
        mock_load.return_value = config_data
        config = Config()
        config._config = config_data
        config._config_path = str(config_file)
        yield config


@pytest.fixture
def mock_auth_token(temp_config_dir):
    """Mock GoCardless authentication token."""
    auth_data = {"access": "mock-access-token", "refresh": "mock-refresh-token"}

    auth_file = temp_config_dir / "auth.json"
    with open(auth_file, "w") as f:
        json.dump(auth_data, f)

    return auth_data


@pytest.fixture
def fastapi_app(mock_db_path):
    """Create FastAPI test application."""
    # Patch the database path for the app
    with patch("leggen.utils.paths.path_manager.get_database_path", return_value=mock_db_path):
        app = create_app()
        yield app


@pytest.fixture
def api_client(fastapi_app):
    """Create FastAPI test client."""
    return TestClient(fastapi_app)


@pytest.fixture
def mock_db_path(temp_db_path):
    """Mock the database path to use temporary database for testing."""
    from leggen.utils.paths import path_manager

    # Set the path manager to use the temporary database
    original_database_path = path_manager._database_path
    path_manager.set_database_path(temp_db_path)

    try:
        yield temp_db_path
    finally:
        # Restore original path
        path_manager._database_path = original_database_path


@pytest.fixture
def sample_bank_data():
    """Sample bank/institution data for testing."""
    return {
        "results": [
            {
                "id": "REVOLUT_REVOLT21",
                "name": "Revolut",
                "bic": "REVOLT21",
                "transaction_total_days": 90,
                "countries": ["GB", "LT"],
            },
            {
                "id": "BANCOBPI_BBPIPTPL",
                "name": "Banco BPI",
                "bic": "BBPIPTPL",
                "transaction_total_days": 90,
                "countries": ["PT"],
            },
        ]
    }


@pytest.fixture
def sample_account_data():
    """Sample account data for testing."""
    return {
        "id": "test-account-123",
        "institution_id": "REVOLUT_REVOLT21",
        "status": "READY",
        "iban": "LT313250081177977789",
        "created": "2024-02-13T23:56:00Z",
        "last_accessed": "2025-09-01T09:30:00Z",
    }


@pytest.fixture
def sample_transaction_data():
    """Sample transaction data for testing."""
    return {
        "transactions": {
            "booked": [
                {
                    "internalTransactionId": "txn-123",
                    "bookingDate": "2025-09-01",
                    "valueDate": "2025-09-01",
                    "transactionAmount": {"amount": "-10.50", "currency": "EUR"},
                    "remittanceInformationUnstructured": "Coffee Shop Payment",
                }
            ],
            "pending": [],
        }
    }