"""Tests for settings endpoints."""

import pytest
from unittest.mock import AsyncMock
import httpx


class TestSettingsEndpoints:
    """Tests for /api/v1/settings endpoints."""

    def test_get_settings_success(self, client, mock_db_client, test_settings):
        """Test getting user settings successfully."""
        mock_db_client.get_user_settings = AsyncMock(return_value=test_settings)

        response = client.get("/api/v1/settings")

        assert response.status_code == 200
        data = response.json()

        assert data["user_id"] == "test-user-123"
        assert "settings" in data
        assert "ift" in data["settings"]
        assert "psi" in data["settings"]
        assert "prod" in data["settings"]
        assert data["settings"]["ift"]["apiMode"] == "bench"

        mock_db_client.get_user_settings.assert_called_once_with("test-user-123")

    def test_get_settings_not_found(self, client, mock_db_client):
        """Test getting settings when user not found."""
        # Mock 404 from DB API
        error_response = httpx.Response(404, json={"detail": "Not found"})
        mock_db_client.get_user_settings = AsyncMock(
            side_effect=httpx.HTTPStatusError("Not found", request=None, response=error_response)
        )

        response = client.get("/api/v1/settings")

        assert response.status_code == 404
        assert "not found" in response.json()["detail"].lower()

    def test_get_settings_unauthenticated(self, unauthenticated_client):
        """Test getting settings without authentication."""
        response = unauthenticated_client.get("/api/v1/settings")

        assert response.status_code == 401  # HTTPBearer returns 401

    def test_update_settings_success(self, client, mock_db_client, test_settings):
        """Test updating user settings successfully."""
        mock_db_client.update_user_settings = AsyncMock(return_value=test_settings)

        update_data = {
            "settings": {
                "ift": {
                    "apiMode": "backend",
                    "bearerToken": "new-token",
                    "resetSessionMode": False
                }
            }
        }

        response = client.put("/api/v1/settings", json=update_data)

        assert response.status_code == 200
        data = response.json()

        assert data["user_id"] == "test-user-123"
        mock_db_client.update_user_settings.assert_called_once()

    def test_update_settings_invalid_data(self, client, mock_db_client):
        """Test updating settings with invalid data."""
        error_response = httpx.Response(400, json={"detail": "Invalid format"})
        mock_db_client.update_user_settings = AsyncMock(
            side_effect=httpx.HTTPStatusError("Bad request", request=None, response=error_response)
        )

        update_data = {
            "settings": {
                "invalid_env": {"apiMode": "invalid"}
            }
        }

        response = client.put("/api/v1/settings", json=update_data)

        assert response.status_code == 400

    def test_update_settings_db_api_error(self, client, mock_db_client):
        """Test update settings when DB API fails."""
        mock_db_client.update_user_settings = AsyncMock(
            side_effect=Exception("DB error")
        )

        update_data = {
            "settings": {
                "ift": {"apiMode": "bench"}
            }
        }

        response = client.put("/api/v1/settings", json=update_data)

        assert response.status_code == 500

    def test_get_settings_db_api_502_error(self, client, mock_db_client):
        """Test get settings when DB API returns 502."""
        error_response = httpx.Response(503, json={"detail": "Service unavailable"})
        mock_db_client.get_user_settings = AsyncMock(
            side_effect=httpx.HTTPStatusError("Service error", request=None, response=error_response)
        )

        response = client.get("/api/v1/settings")

        assert response.status_code == 502
        assert "failed to retrieve settings" in response.json()["detail"].lower()

    def test_get_settings_unexpected_error(self, client, mock_db_client):
        """Test get settings with unexpected error."""
        mock_db_client.get_user_settings = AsyncMock(
            side_effect=Exception("Unexpected error")
        )

        response = client.get("/api/v1/settings")

        assert response.status_code == 500
        assert "internal server error" in response.json()["detail"].lower()

    def test_update_settings_user_not_found(self, client, mock_db_client):
        """Test update settings when user not found."""
        error_response = httpx.Response(404, json={"detail": "User not found"})
        mock_db_client.update_user_settings = AsyncMock(
            side_effect=httpx.HTTPStatusError("Not found", request=None, response=error_response)
        )

        update_data = {
            "settings": {
                "ift": {"apiMode": "bench"}
            }
        }

        response = client.put("/api/v1/settings", json=update_data)

        assert response.status_code == 404
        assert "user not found" in response.json()["detail"].lower()

    def test_update_settings_db_api_502_error(self, client, mock_db_client):
        """Test update settings when DB API returns 502."""
        error_response = httpx.Response(503, json={"detail": "Service unavailable"})
        mock_db_client.update_user_settings = AsyncMock(
            side_effect=httpx.HTTPStatusError("Service error", request=None, response=error_response)
        )

        update_data = {
            "settings": {
                "ift": {"apiMode": "bench"}
            }
        }

        response = client.put("/api/v1/settings", json=update_data)

        assert response.status_code == 502
        assert "failed to update settings" in response.json()["detail"].lower()