somew1nd
12d7902a82
Fix queue cancellation, concurrency limits and worker status updates. Use direct Explorer imports, split the Diagnoser loop into helpers and remove unused tool registration and prompt-builder code. Correct model caching, endpoint selection and retry handling.
204 lines
7.4 KiB
Python
204 lines
7.4 KiB
Python
# Copyright 2026 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from typing import Any
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from langchain_core.messages import ToolMessage
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from langchain_core.tools import BaseTool
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from pydantic import BaseModel, Field
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from artemis.agents.hopper.hopper import HopperOutput, hopper
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from artemis.context import ArtemisContext
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from artemis.controllers.platform_specific_commands_controller import (
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list_packages_async,
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)
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from artemis.data_engine.trace import trace_langchain_tool
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from artemis.drivers.base import BaseDeviceDriver
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from artemis.graph.state import State
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from artemis.tools.base import ArtemisTool, ToolCategory
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from artemis.tools.tool_wrapper import ToolWrapper
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from artemis.tools.types import CyFunctionDetector
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from artemis.utils.app_launch_utils import launch_app_with_retries
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from artemis.utils.logger import get_logger
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logger = get_logger(__name__)
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class LaunchAppArgs(BaseModel):
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"""Arguments schema for launching an application."""
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model_config = {"ignored_types": (CyFunctionDetector,)}
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app_name: str = Field(
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...,
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description="The natural language name of the application to launch.",
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)
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LAUNCH_APP_DOCSTRING = (
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"[ACTION] Finds and launches an application on the device using its natural language name."
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)
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async def find_package(ctx: ArtemisContext, app_name: str, use_fallback: bool = True) -> str | None:
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"""Finds the package name for a given application name.
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Returns None if package not found or on error.
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"""
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package_cache = getattr(ctx, "package_cache", None)
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if package_cache is None or not isinstance(package_cache, dict):
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try:
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ctx.package_cache = {}
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package_cache = ctx.package_cache
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except Exception: # pylint: disable=broad-exception-caught
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package_cache = {}
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if isinstance(package_cache, dict) and app_name in package_cache:
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logger.info(f"Cache hit for app '{app_name}': {package_cache[app_name]}")
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return package_cache[app_name]
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try:
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all_packages = await list_packages_async(ctx=ctx)
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package_set = {p.strip() for p in all_packages.split("\n") if p.strip()}
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# Fast path: If app_name is already directly an installed package name
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if app_name in package_set:
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if isinstance(package_cache, dict):
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package_cache[app_name] = app_name
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return app_name
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hopper_output: HopperOutput = await hopper(
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ctx=ctx,
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request=(f"I'm looking for the package name of the following app: '{app_name}'"),
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data=all_packages,
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use_fallback=use_fallback,
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)
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if not hopper_output.found or not hopper_output.output:
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if isinstance(package_cache, dict):
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package_cache[app_name] = None
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return None
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package_name = hopper_output.output.strip()
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if package_name not in package_set:
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logger.warning(
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f"Hopper returned package '{package_name}' for '{app_name}', "
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"but it is NOT physically installed on the device!"
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)
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if isinstance(package_cache, dict):
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package_cache[app_name] = None
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return None
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if isinstance(package_cache, dict):
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package_cache[app_name] = package_name
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return package_name
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except Exception as e: # pylint: disable=broad-exception-caught
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logger.error(f"Failed to find package for '{app_name}': {e}")
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return None
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class LaunchAppTool(ArtemisTool):
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"""Universal tool for finding and launching an application on the device."""
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def __init__(self, category: ToolCategory = "action"):
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super().__init__(
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name="launch_app",
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description=LAUNCH_APP_DOCSTRING,
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args_schema=LaunchAppArgs,
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category=category,
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)
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# pylint: disable=too-many-arguments,too-many-positional-arguments,too-many-locals
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async def execute(
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self,
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driver: BaseDeviceDriver | None = None,
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ctx: ArtemisContext | None = None,
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app_name: str | None = None,
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tool_call_id: str | None = None,
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state: State | None = None,
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**kwargs: Any,
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) -> Any:
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app = (
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app_name
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if app_name is not None
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else (kwargs.get("app_name") or kwargs.get("AppName") or "")
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)
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tcid = tool_call_id if tool_call_id is not None else kwargs.get("tool_call_id")
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st = state if state is not None else kwargs.get("state")
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success = False
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error_msg = None
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try:
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if not app:
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raise ValueError("app_name parameter is required.")
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if ctx is not None:
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package_name = await find_package(ctx=ctx, app_name=app)
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if not package_name:
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success = False
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outcome = f"Failed to launch app '{app}': Package not found."
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error_msg = "Package not found."
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else:
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success, error_msg = await launch_app_with_retries(
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ctx=ctx, app_package=package_name
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)
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outcome = (
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f"App '{app}' launched successfully."
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if success
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else f"Failed to launch app '{app}': {error_msg}"
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)
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elif driver is not None and hasattr(driver, "launch_app"):
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success = await driver.launch_app(app)
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outcome = (
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f"App '{app}' launched successfully."
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if success
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else f"Failed to launch app '{app}'."
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)
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error_msg = None if success else "Launch failed."
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else:
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success = False
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outcome = "Error during launch app: No driver or context provided."
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error_msg = "No driver or context provided."
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except Exception as e: # pylint: disable=broad-exception-caught
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success = False
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outcome = f"Error during launch app: {e}"
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error_msg = str(e)
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if st is not None:
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additional_kwargs = {} if success else ({"error": error_msg} if error_msg else {})
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return ToolMessage(
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tool_call_id=tcid or "",
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content=outcome,
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additional_kwargs=additional_kwargs,
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status="success" if success else "error",
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)
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return outcome
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# Universal tool instance & aliases
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launch_app = LaunchAppTool()
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LaunchApp = LaunchAppTool
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def get_launch_app_tool(ctx: ArtemisContext) -> BaseTool:
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"""Exports launch_app as a LangChain BaseTool."""
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return trace_langchain_tool(launch_app.to_langchain_tool(ctx), ctx)
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launch_app_wrapper = ToolWrapper(
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tool_fn_getter=get_launch_app_tool,
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on_success_fn=lambda *args, **kwargs: "Success",
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on_failure_fn=lambda *args, **kwargs: "Failure",
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)
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