# Copyright 2026 Google LLC
#
# 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.

from __future__ import annotations

from google.adk.integrations.gcs import GCSAdminToolset
from google.adk.integrations.gcs import GCSCredentialsConfig
from google.adk.integrations.gcs import GCSToolset
from google.adk.integrations.gcs.settings import Capabilities
from google.adk.integrations.gcs.settings import GCSToolSettings
from google.adk.tools.google_tool import GoogleTool
import pytest


@pytest.mark.asyncio
async def test_gcs_toolset_tools_default():
  """Test default GCS toolset (READ_ONLY)."""
  credentials_config = GCSCredentialsConfig(
      client_id="abc", client_secret="def"
  )
  toolset = GCSToolset(
      credentials_config=credentials_config, gcs_tool_settings=None
  )
  assert isinstance(toolset._tool_settings, GCSToolSettings)

  tools = await toolset.get_tools()
  assert tools is not None
  assert len(tools) == 4
  assert all([isinstance(tool, GoogleTool) for tool in tools])

  expected_tool_names = {
      "get_bucket",
      "get_object_data",
      "get_object_metadata",
      "list_objects",
  }
  actual_tool_names = {tool.name for tool in tools}
  assert actual_tool_names == expected_tool_names


@pytest.mark.asyncio
async def test_gcs_toolset_tools_read_write():
  """Test GCS toolset with READ_WRITE capability."""
  credentials_config = GCSCredentialsConfig(
      client_id="abc", client_secret="def"
  )
  settings = GCSToolSettings(capabilities=[Capabilities.READ_WRITE])
  toolset = GCSToolset(
      credentials_config=credentials_config, gcs_tool_settings=settings
  )

  tools = await toolset.get_tools()
  assert tools is not None
  assert len(tools) == 6
  assert all([isinstance(tool, GoogleTool) for tool in tools])

  expected_tool_names = {
      "get_bucket",
      "get_object_data",
      "get_object_metadata",
      "list_objects",
      "create_object",
      "delete_objects",
  }
  actual_tool_names = {tool.name for tool in tools}
  assert actual_tool_names == expected_tool_names


@pytest.mark.asyncio
async def test_gcs_admin_toolset_tools_default():
  """Test default GCS admin toolset (READ_ONLY)."""
  credentials_config = GCSCredentialsConfig(
      client_id="abc", client_secret="def"
  )
  toolset = GCSAdminToolset(
      credentials_config=credentials_config, gcs_tool_settings=None
  )
  assert isinstance(toolset._tool_settings, GCSToolSettings)

  tools = await toolset.get_tools()
  assert tools is not None
  assert len(tools) == 1
  assert all([isinstance(tool, GoogleTool) for tool in tools])

  expected_tool_names = {
      "list_buckets",
  }
  actual_tool_names = {tool.name for tool in tools}
  assert actual_tool_names == expected_tool_names


@pytest.mark.asyncio
async def test_gcs_admin_toolset_tools_read_write():
  """Test GCS admin toolset with READ_WRITE capability."""
  credentials_config = GCSCredentialsConfig(
      client_id="abc", client_secret="def"
  )
  settings = GCSToolSettings(capabilities=[Capabilities.READ_WRITE])
  toolset = GCSAdminToolset(
      credentials_config=credentials_config, gcs_tool_settings=settings
  )

  tools = await toolset.get_tools()
  assert tools is not None
  assert len(tools) == 4
  assert all([isinstance(tool, GoogleTool) for tool in tools])

  expected_tool_names = {
      "list_buckets",
      "create_bucket",
      "update_bucket",
      "delete_bucket",
  }
  actual_tool_names = {tool.name for tool in tools}
  assert actual_tool_names == expected_tool_names


@pytest.mark.parametrize(
    "selected_tools, expected_count",
    [
        pytest.param(None, 4, id="None"),
        pytest.param(["get_bucket", "list_objects"], 2, id="read-subset"),
    ],
)
@pytest.mark.asyncio
async def test_gcs_toolset_tools_selective(selected_tools, expected_count):
  """Test GCS toolset with filter."""
  credentials_config = GCSCredentialsConfig(
      client_id="abc", client_secret="def"
  )
  toolset = GCSToolset(
      credentials_config=credentials_config, tool_filter=selected_tools
  )
  tools = await toolset.get_tools()
  assert tools is not None
  assert len(tools) == expected_count
  assert all([isinstance(tool, GoogleTool) for tool in tools])

  if selected_tools is not None:
    expected_tool_names = set(selected_tools)
    actual_tool_names = {tool.name for tool in tools}
    assert actual_tool_names == expected_tool_names