from types import SimpleNamespace

import pytest
from fastapi import HTTPException

from app.gateway.routers import system_settings as system_settings_router
from deerflow.config.html_runtime_config import (
    DEFAULT_HTML_MAP_TILE_URL,
    DEFAULT_HTML_RUNTIME_BASE_URL,
)
from deerflow.config.system_settings import HtmlRuntimeSettings, SystemSettings
from deerflow.html_runtime.addresses import (
    html_map_tile_url,
    html_runtime_base_url,
    normalize_html_map_tile_url,
    normalize_html_runtime_base_url,
)


def test_domain_only_runtime_address_receives_the_public_asset_path() -> None:
    assert (
        normalize_html_runtime_base_url("https://cm.example.com/")
        == "https://cm.example.com/api/public/html-runtime"
    )
    assert (
        normalize_html_runtime_base_url("https://cm.example.com/prefix/api/public/html-runtime/")
        == "https://cm.example.com/prefix/api/public/html-runtime"
    )


def test_runtime_address_rejects_a_bare_host_and_credentials() -> None:
    with pytest.raises(ValueError, match="http://"):
        normalize_html_runtime_base_url("cm.example.com")
    with pytest.raises(ValueError, match="账号或密码"):
        normalize_html_runtime_base_url("https://user:secret@cm.example.com")


def test_tile_address_requires_xyz_placeholders() -> None:
    assert normalize_html_map_tile_url(DEFAULT_HTML_MAP_TILE_URL) == DEFAULT_HTML_MAP_TILE_URL
    with pytest.raises(ValueError, match="占位符"):
        normalize_html_map_tile_url("https://tiles.example/tile.png")


def test_saved_dialog_address_overrides_config(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setattr(
        "deerflow.html_runtime.addresses._saved",
        lambda field: {
            "base_url": "https://users.example/api/public/html-runtime",
            "map_tile_url": "https://tiles.example/{z}/{x}/{y}.png",
        }[field],
    )
    monkeypatch.setattr(
        "deerflow.html_runtime.addresses._config_value",
        lambda _field: "http://server.internal/api/public/html-runtime",
    )

    assert html_runtime_base_url(fallback="http://fallback.example/api/public/html-runtime") == (
        "https://users.example/api/public/html-runtime"
    )
    assert html_map_tile_url() == "https://tiles.example/{z}/{x}/{y}.png"


def test_unset_dialog_address_keeps_the_config_fallback(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setattr("deerflow.html_runtime.addresses._saved", lambda _field: "")
    monkeypatch.setattr(
        "deerflow.html_runtime.addresses._config_value",
        lambda field: {
            "base_url": "http://legacy.example/api/public/html-runtime",
            "map_tile_url": "http://legacy.example/tiles/{z}/{x}/{y}.png",
        }[field],
    )

    assert html_runtime_base_url() == "http://legacy.example/api/public/html-runtime"
    assert html_map_tile_url() == "http://legacy.example/tiles/{z}/{x}/{y}.png"


def test_missing_config_uses_the_built_in_default(monkeypatch: pytest.MonkeyPatch) -> None:
    monkeypatch.setattr("deerflow.html_runtime.addresses._saved", lambda _field: "")
    monkeypatch.setattr("deerflow.html_runtime.addresses._config_value", lambda _field: "")

    assert html_runtime_base_url() == DEFAULT_HTML_RUNTIME_BASE_URL
    assert html_map_tile_url() == DEFAULT_HTML_MAP_TILE_URL


def test_new_settings_leave_html_runtime_unset() -> None:
    assert SystemSettings().html_runtime == HtmlRuntimeSettings()


@pytest.mark.asyncio
async def test_non_admin_cannot_change_html_runtime_addresses(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    async def ordinary_user(_request):
        return SimpleNamespace(system_role="user")

    monkeypatch.setattr(
        system_settings_router,
        "get_optional_user_from_request",
        ordinary_user,
    )

    with pytest.raises(HTTPException) as error:
        await system_settings_router.update_html_runtime_settings(
            system_settings_router.HtmlRuntimeSettingsUpdateRequest(
                base_url="https://users.example",
                map_tile_url="https://tiles.example/{z}/{x}/{y}.png",
            ),
            SimpleNamespace(),
        )

    assert error.value.status_code == 403


@pytest.mark.asyncio
async def test_admin_can_save_html_runtime_addresses(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    current = SystemSettings()
    saved: list[SystemSettings] = []

    async def admin_user(_request):
        return SimpleNamespace(system_role="admin")

    monkeypatch.setattr(system_settings_router, "get_optional_user_from_request", admin_user)
    monkeypatch.setattr(system_settings_router, "load_system_settings", lambda: current)
    monkeypatch.setattr(
        system_settings_router,
        "save_system_settings",
        lambda settings: saved.append(settings) or settings,
    )

    response = await system_settings_router.update_html_runtime_settings(
        system_settings_router.HtmlRuntimeSettingsUpdateRequest(
            base_url="https://users.example",
            map_tile_url="https://tiles.example/{z}/{x}/{y}.png",
        ),
        SimpleNamespace(),
    )

    assert response.base_url == "https://users.example/api/public/html-runtime"
    assert response.map_tile_url == "https://tiles.example/{z}/{x}/{y}.png"
    assert saved[0].html_runtime.base_url == response.base_url
    assert saved[0].prompt_prefix == current.prompt_prefix


@pytest.mark.asyncio
async def test_invalid_html_runtime_address_is_rejected(
    monkeypatch: pytest.MonkeyPatch,
) -> None:
    async def admin_user(_request):
        return SimpleNamespace(system_role="admin")

    monkeypatch.setattr(system_settings_router, "get_optional_user_from_request", admin_user)

    with pytest.raises(HTTPException) as error:
        await system_settings_router.update_html_runtime_settings(
            system_settings_router.HtmlRuntimeSettingsUpdateRequest(
                base_url="not a url",
                map_tile_url="https://tiles.example/{z}/{x}/{y}.png",
            ),
            SimpleNamespace(),
        )

    assert error.value.status_code == 400