# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ========= Copyright 2025-2026 @ Eigent.ai All Rights Reserved. =========

import os
from types import SimpleNamespace
from unittest.mock import AsyncMock, MagicMock, patch

import pytest
from fastapi import HTTPException
from fastapi.testclient import TestClient

from app.controller import tool_controller
from app.controller.tool_controller import install_tool


@pytest.mark.unit
class TestToolController:
    """Test cases for tool controller endpoints."""

    @pytest.mark.asyncio
    async def test_install_notion_tool_success(self):
        tool_name = "notion"
        mock_toolkit = AsyncMock()
        mock_tools = [MagicMock(), MagicMock()]
        for tool, name in zip(mock_tools, ["create_page", "update_page"]):
            tool.func.__name__ = name
        mock_toolkit.get_tools = MagicMock(return_value=mock_tools)
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool(tool_name)
        assert result["success"] is True
        assert result["tools"] == ["create_page", "update_page"]
        assert result["count"] == 2
        assert result["toolkit_name"] == "NotionMCPToolkit"
        mock_toolkit.connect.assert_called_once()
        mock_toolkit.disconnect.assert_called_once()

    @pytest.mark.asyncio
    async def test_install_unknown_tool(self):
        with pytest.raises(HTTPException) as exc_info:
            await install_tool("unknown_tool")
        assert exc_info.value.status_code == 404

    @pytest.mark.asyncio
    async def test_install_notion_tool_connection_failure(self):
        mock_toolkit = AsyncMock()
        mock_toolkit.connect.side_effect = Exception("Connection failed")
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert result["count"] == 0
        assert "warning" in result

    @pytest.mark.asyncio
    async def test_install_notion_tool_get_tools_failure(self):
        mock_toolkit = AsyncMock()
        mock_toolkit.get_tools = MagicMock(
            side_effect=Exception("Failed to get tools")
        )
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert result["count"] == 0
        assert "warning" in result

    @pytest.mark.asyncio
    async def test_install_notion_tool_disconnect_failure(self):
        mock_toolkit = AsyncMock()
        mock_tools = [MagicMock()]
        mock_tools[0].func.__name__ = "test_tool"
        mock_toolkit.get_tools = MagicMock(return_value=mock_tools)
        mock_toolkit.disconnect.side_effect = Exception("Disconnect failed")
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert result["count"] == 0
        assert "warning" in result

    @pytest.mark.asyncio
    async def test_install_notion_tool_empty_tools(self):
        mock_toolkit = AsyncMock()
        mock_toolkit.get_tools = MagicMock(return_value=[])
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert result["count"] == 0
        mock_toolkit.connect.assert_called_once()
        mock_toolkit.disconnect.assert_called_once()

    @pytest.mark.asyncio
    async def test_install_notion_tool_with_complex_tools(self):
        mock_toolkit = AsyncMock()
        names = [
            "create_database",
            "query_database",
            "update_block",
            "delete_page",
        ]
        mock_tools = []
        for name in names:
            mt = MagicMock()
            mt.func.__name__ = name
            mock_tools.append(mt)
        mock_toolkit.get_tools = MagicMock(return_value=mock_tools)
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == names
        assert result["count"] == 4
        mock_toolkit.connect.assert_called_once()
        mock_toolkit.disconnect.assert_called_once()

    @pytest.mark.asyncio
    async def test_launch_cdp_browser_uses_remote_hands_endpoint(
        self, monkeypatch: pytest.MonkeyPatch
    ):
        class _FakeRemoteHands:
            def get_capability_manifest(self):
                return {"deployment": "remote_cluster"}

            def acquire_resource(
                self, resource_type: str, session_id: str, **kwargs
            ):
                _ = (resource_type, session_id, kwargs)
                return "http://worker-17:9222"

        monkeypatch.delenv("EIGENT_CDP_URL", raising=False)
        tool_controller._web_cdp_browser_meta = None
        request = SimpleNamespace(
            state=SimpleNamespace(hands=_FakeRemoteHands())
        )

        response = await tool_controller.launch_cdp_browser(request)

        assert response["success"] is True
        assert response["endpoint"] == "http://worker-17:9222"
        assert response["browser"]["managedBy"] == "remote"
        assert response["browser"]["host"] == "worker-17"
        assert os.environ["EIGENT_CDP_URL"] == "http://worker-17:9222"
        assert os.environ["browser_port"] == "9222"

        tool_controller._clear_connected_cdp_browser()

    @pytest.mark.asyncio
    async def test_open_browser_login_uses_dedicated_cookie_port_when_existing(
        self, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.delenv("EIGENT_LOGIN_BROWSER_CDP_PORT", raising=False)

        with patch(
            "app.controller.tool_controller._is_port_in_use",
            return_value=True,
        ):
            response = await tool_controller.open_browser_login()

        assert response["success"] is True
        assert response["cdp_port"] == 9323
        assert response["session_id"] == "user_login"

    @pytest.mark.asyncio
    async def test_browser_status_uses_dedicated_cookie_port(
        self, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.delenv("EIGENT_LOGIN_BROWSER_CDP_PORT", raising=False)

        with patch(
            "app.controller.tool_controller._is_port_in_use",
            return_value=True,
        ) as is_port_in_use:
            response = await tool_controller.browser_status()

        assert response == {"is_open": True, "cdp_port": 9323}
        is_port_in_use.assert_called_once_with(9323)

    def test_remote_browser_hands_rejects_async_manifest(self):
        class _AsyncManifestHands:
            async def get_capability_manifest(self):
                return {"deployment": "remote_cluster"}

        assert not tool_controller._is_remote_browser_hands(
            _AsyncManifestHands()
        )

    def test_remote_cdp_endpoint_uses_shared_validation(self):
        with patch(
            "app.controller.tool_controller.is_cdp_url_available",
            return_value=True,
        ) as is_cdp_url_available:
            assert tool_controller._is_cdp_endpoint_available(
                "http://worker-17:9222"
            )

        is_cdp_url_available.assert_called_once_with("http://worker-17:9222")


@pytest.mark.integration
class TestToolControllerIntegration:
    """Integration tests for tool controller."""

    def test_install_notion_tool_endpoint_integration(
        self, client: TestClient
    ):
        """Test install Notion tool endpoint through FastAPI test client."""
        tool_name = "notion"

        mock_toolkit = AsyncMock()
        mock_tools = [MagicMock(), MagicMock()]
        mock_tools[0].func.__name__ = "create_page"
        mock_tools[1].func.__name__ = "update_page"
        mock_toolkit.get_tools = MagicMock(return_value=mock_tools)

        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            response = client.post(f"/install/tool/{tool_name}")

            assert response.status_code == 200
            data = response.json()
            assert data["success"] is True
            assert data["tools"] == ["create_page", "update_page"]
            assert data["count"] == 2

    def test_install_unknown_tool_endpoint_integration(
        self, client: TestClient
    ):
        """Test install unknown tool endpoint through FastAPI test client."""
        tool_name = "unknown_tool"

        response = client.post(f"/install/tool/{tool_name}")

        assert response.status_code == 404

    def test_install_notion_tool_endpoint_with_connection_error(
        self, client: TestClient
    ):
        """Test install Notion tool endpoint when connection fails."""
        tool_name = "notion"

        mock_toolkit = AsyncMock()
        mock_toolkit.connect.side_effect = Exception("Connection failed")

        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            response = client.post(f"/install/tool/{tool_name}")
            assert response.status_code == 200
            data = response.json()
            assert data["success"] is True
            assert data["tools"] == []
            assert "warning" in data

    def test_launch_cdp_browser_endpoint_integration(
        self, client: TestClient, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.delenv("EIGENT_CDP_URL", raising=False)
        tool_controller._web_cdp_browser_meta = None

        with patch(
            "app.controller.tool_controller.ensure_cdp_browser_endpoint",
            return_value="http://127.0.0.1:9222",
        ):
            response = client.post("/browser/cdp/launch")

        assert response.status_code == 200
        data = response.json()
        assert data["success"] is True
        assert data["port"] == 9222
        assert data["browser"]["id"] == "web-cdp-9222"
        assert tool_controller._get_connected_cdp_port() == 9222

        tool_controller._clear_connected_cdp_browser()

    def test_connect_list_and_disconnect_cdp_browser_endpoints(
        self, client: TestClient, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.delenv("EIGENT_CDP_URL", raising=False)
        tool_controller._web_cdp_browser_meta = None

        with patch(
            "app.controller.tool_controller._is_cdp_available",
            return_value=True,
        ):
            connect_response = client.post(
                "/browser/cdp/connect",
                json={"port": 9333, "name": "External Browser (9333)"},
            )

            assert connect_response.status_code == 200
            connect_data = connect_response.json()
            assert connect_data["success"] is True
            assert connect_data["browser"]["port"] == 9333
            assert connect_data["browser"]["isExternal"] is True

            list_response = client.get("/browser/cdp/list")
            assert list_response.status_code == 200
            assert list_response.json() == [connect_data["browser"]]

        disconnect_response = client.delete("/browser/cdp/9333")
        assert disconnect_response.status_code == 200
        assert disconnect_response.json()["success"] is True
        assert tool_controller._get_connected_cdp_port() is None

    def test_connect_cdp_browser_endpoint_returns_error_when_unreachable(
        self, client: TestClient, monkeypatch: pytest.MonkeyPatch
    ):
        monkeypatch.delenv("EIGENT_CDP_URL", raising=False)
        tool_controller._web_cdp_browser_meta = None

        with patch(
            "app.controller.tool_controller._is_cdp_available",
            return_value=False,
        ):
            response = client.post("/browser/cdp/connect", json={"port": 9555})

        assert response.status_code == 200
        data = response.json()
        assert data["success"] is False
        assert "9555" in data["error"]


@pytest.mark.model_backend
class TestToolControllerWithRealMCP:
    """Tests that require real MCP connections (marked for selective running)."""

    @pytest.mark.asyncio
    async def test_install_notion_tool_with_real_connection(self):
        """Test Notion tool installation with real MCP connection."""

        # This test would connect to real Notion MCP server
        # Requires actual MCP server setup and credentials
        # Marked as model_backend test for selective execution
        assert True  # Placeholder

    @pytest.mark.very_slow
    async def test_install_and_test_all_notion_tools(self):
        """Test installation and functionality of all Notion tools (very slow test)."""
        # This test would install and test each Notion tool individually
        # Marked as very_slow for execution only in full test mode
        assert True  # Placeholder


@pytest.mark.unit
class TestToolControllerErrorCases:
    """Test error and edge cases for tool installation."""

    @pytest.mark.asyncio
    async def test_install_tool_with_malformed_tool_response(self):
        mock_toolkit = AsyncMock()
        tools = [MagicMock(), object()]  # Second item lacks func
        tools[0].func.__name__ = "valid_tool"
        mock_toolkit.get_tools = MagicMock(return_value=tools)
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            # Inner except catches the AttributeError and returns success with empty tools
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert "warning" in result

    @pytest.mark.asyncio
    async def test_install_tool_with_none_toolkit(self):
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=None,
        ):
            # Inner except catches AttributeError on None.connect()
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert "warning" in result

    @pytest.mark.asyncio
    async def test_install_tool_with_special_characters_in_name(self):
        with pytest.raises(HTTPException) as exc_info:
            await install_tool("notion@#$%")
        assert exc_info.value.status_code == 404

    @pytest.mark.asyncio
    async def test_install_tool_with_empty_string_name(self):
        with pytest.raises(HTTPException) as exc_info:
            await install_tool("")
        assert exc_info.value.status_code == 404

    @pytest.mark.asyncio
    async def test_install_tool_with_none_name(self):
        with pytest.raises(HTTPException) as exc_info:
            await install_tool(None)
        assert exc_info.value.status_code == 404

    @pytest.mark.asyncio
    async def test_install_notion_tool_partial_failure(self):
        mock_toolkit = AsyncMock()
        mock_toolkit.connect.return_value = None
        tools = [MagicMock(), MagicMock(), MagicMock()]
        tools[0].func.__name__ = "create_page"
        tools[1].func.__name__ = "update_page"
        tools[2].func = None
        mock_toolkit.get_tools = MagicMock(return_value=tools)
        mock_toolkit.disconnect.return_value = None
        with patch(
            "app.controller.tool_controller.NotionMCPToolkit",
            return_value=mock_toolkit,
        ):
            # Inner except catches the AttributeError from tools[2].func
            result = await install_tool("notion")
        assert result["success"] is True
        assert result["tools"] == []
        assert "warning" in result