Files
agentic-mobile-control/world/model.py
T

112 lines
3.7 KiB
Python

from __future__ import annotations
import logging
from typing import TYPE_CHECKING, Any
from core.models import Scene
from semantic.models import SemanticScene
from world.config import WorldConfig, load_config
from world.models import WorldEvent, WorldState
if TYPE_CHECKING:
from runtime.executor import StepResult
from runtime.planner import PlannedStep
logger = logging.getLogger(__name__)
class WorldModel:
def __init__(self, *, config: WorldConfig | None = None) -> None:
self.config = config or load_config()
self._states: dict[str, WorldState] = {}
self._current_task_id: str | None = None
self._fallback_state = self._new_state()
@property
def state(self) -> WorldState:
if self._current_task_id is None:
return self._fallback_state
return self._states[self._current_task_id]
def start_task(self, task_id: str) -> WorldState:
self._current_task_id = task_id
return self._states.setdefault(task_id, self._new_state())
def state_for(self, task_id: str) -> WorldState | None:
return self._states.get(task_id)
def observe(
self,
scene: Scene,
semantic_scene: SemanticScene | None,
step: "PlannedStep",
result: "StepResult",
) -> None:
try:
self._update_page(semantic_scene)
self._update_app(step, result)
self._update_variables(step)
self._append_history(scene, semantic_scene, step, result)
except Exception as exc:
logger.info("world model update skipped after unexpected error: %s", exc)
def _new_state(self) -> WorldState:
return WorldState.with_history_bound(self.config.history_size)
def _update_page(self, semantic_scene: SemanticScene | None) -> None:
if semantic_scene is None:
return
page = semantic_scene.page.strip()
if page:
self.state.current_page = page
def _update_app(self, step: "PlannedStep", result: "StepResult") -> None:
if not getattr(result, "success", False):
return
action = getattr(step, "action", None)
if action not in {"launch_app", "terminate_app"}:
return
args = getattr(step, "args", {})
if not isinstance(args, dict):
logger.info("world model skipped app update: step args are not a mapping")
return
app_id = _app_identifier(args)
if not app_id:
logger.info("world model skipped app update: missing app identifier")
return
if action == "launch_app":
self.state.current_app = app_id
return
self.state.current_app = None
def _update_variables(self, step: "PlannedStep") -> None:
args = getattr(step, "args", {})
if not isinstance(args, dict) or "remember" not in args:
return
remember = args["remember"]
if not isinstance(remember, dict):
logger.info("world model skipped remember update: value is not a mapping")
return
self.state.variables.update(remember)
def _append_history(
self,
scene: Scene,
semantic_scene: SemanticScene | None,
step: "PlannedStep",
result: "StepResult",
) -> None:
self.state.history.append(
WorldEvent(
scene_summary=semantic_scene or scene,
action=str(getattr(step, "action", "unknown")),
success=bool(getattr(result, "success", False)),
)
)
def _app_identifier(args: dict[str, Any]) -> str | None:
value = args.get("bundle_id") or args.get("app_id")
return value if isinstance(value, str) and value.strip() else None