from __future__ import annotations

from typing import Any

try:
    from backend.database import db
except ImportError:  # pragma: no cover - compatibility for direct service imports
    from database import db


def summary() -> dict:
    return db.stats()


def heatmap() -> list[dict]:
    return db.heatmap()


def get_statistical_recommendation(case_data: dict[str, Any]) -> dict[str, Any]:
    score = 0
    age = case_data.get('age') or case_data.get('age_years')
    elapsed = case_data.get('elapsed_hours')
    terrain = str(case_data.get('terrain') or case_data.get('terrain_primary') or '').lower()
    weather = str(case_data.get('weather') or case_data.get('precipitation') or '').lower()

    if age is not None and age < 12:
        score += 20
    if elapsed is not None and elapsed >= 12:
        score += 20
    if any(token in terrain for token in ('лес', 'болото', 'вода')):
        score += 15
    if any(token in weather for token in ('дождь', 'туман', 'снег', 'ночь')):
        score += 15

    return {
        'score': score,
        'priority': 'high' if score >= 40 else 'normal',
        'recommendation': 'Высокий приоритет на прочёс и дрон' if score >= 40 else 'Стандартный приоритет поиска',
    }