# 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 langchain_core.tools import BaseTool

from artemis.context import ArtemisContext
from artemis.data_engine.trace import trace_langchain_tool
from artemis.tools.tool_wrapper import CompositeToolWrapper, ToolWrapper


def get_tools_from_wrappers(
    ctx: "ArtemisContext",
    wrappers: list[ToolWrapper],
) -> list[BaseTool]:
    """Instantiate and wrap LangChain tools from a list of ToolWrappers."""
    tools: list[BaseTool] = []
    for wrapper in wrappers:
        if wrapper.is_available_fn is not None and not wrapper.is_available_fn(ctx):
            continue
        if isinstance(wrapper, CompositeToolWrapper):
            comp_tools = wrapper.composite_tools_fn_getter(ctx)
            for t in comp_tools:
                tools.append(trace_langchain_tool(t, ctx))
            continue

        t = wrapper.tool_fn_getter(ctx)
        tools.append(trace_langchain_tool(t, ctx))
    return tools


def get_tool_by_name(name: str, tools: list[BaseTool]) -> BaseTool | None:
    """Get a tool by name, stripping any prefixes like 'default_api:'."""
    normalized_name = name
    if ":" in normalized_name:
        normalized_name = normalized_name.split(":")[-1]

    for t in tools:
        t_name = t.name
        if ":" in t_name:
            t_name = t_name.split(":")[-1]
        if t_name == normalized_name:
            return t
    return None