"""Expose the gesture model and safety configuration bundled with this project."""

from __future__ import annotations

from pathlib import Path
from typing import Any

import yaml


DEFAULT_ACTION_COPY = {
    "POINT_UP": {"action": "SEAT_UP", "utterance": "副驾驶座椅坐垫前端升高一点"},
    "POINT_DOWN": {"action": "SEAT_DOWN", "utterance": "副驾驶座椅坐垫前端降低一点"},
    "POINT_RIGHT": {"action": "SEAT_FORWARD", "utterance": "副驾驶座椅向前移动一点"},
    "POINT_LEFT": {"action": "SEAT_BACKWARD", "utterance": "副驾驶座椅向后移动一点"},
    "THUMB_UP": {"action": "BACKREST_FORWARD", "utterance": "副驾驶靠背向前调一点"},
    "THUMB_DOWN": {"action": "BACKREST_BACKWARD", "utterance": "副驾驶靠背向后调一点"},
    "GUN_UP": {"action": "LEGREST_EXTEND", "utterance": "副驾驶腿托伸出一点"},
    "GUN_DOWN": {"action": "LEGREST_RETRACT", "utterance": "副驾驶腿托收回一点"},
    "VICTORY_RIGHT": {"action": "LEGREST_EXTEND", "utterance": "副驾驶腿托伸出一点"},
    "VICTORY_LEFT": {"action": "LEGREST_RETRACT", "utterance": "副驾驶腿托收回一点"},
}


class GestureCapabilityBridge:
    """Expose the repository-owned gesture assets to the browser runtime."""

    def __init__(self, repository_root: Path, asset_root: Path | None = None) -> None:
        self.repository_root = repository_root.resolve()
        self.asset_root = (
            asset_root or self.repository_root / "apps" / "web-console" / "assets" / "gesture"
        ).resolve()
        self.config_path = self.repository_root / "config" / "gesture" / "default.yaml"
        self.model_path = self.asset_root / "gesture_recognizer.task"

    @property
    def available(self) -> bool:
        return self.config_path.is_file() and self.model_path.is_file()

    def runtime_info(self) -> dict[str, Any]:
        recognition: dict[str, Any] = {}
        if self.config_path.is_file():
            try:
                payload = yaml.safe_load(self.config_path.read_text(encoding="utf-8")) or {}
                recognition = dict(payload.get("recognition", {}))
            except (OSError, TypeError, ValueError, yaml.YAMLError):
                recognition = {}
        defaults = {
            "action_hold_ms": 600,
            "min_action_frames": 8,
            "arm_hold_ms": 1000,
            "armed_idle_timeout_ms": 3000,
            "max_continuous_motion_ms": 1500,
            "neutral_release_ms": 350,
        }
        safety = {name: int(recognition.get(name, value)) for name, value in defaults.items()}
        return {
            "available": self.available,
            "model_available": self.model_path.is_file(),
            "source": "cognitive-agent-bundled-assets",
            "asset_strategy": "bundled",
            "safety": safety,
            "actions": DEFAULT_ACTION_COPY,
        }