from typing import Any

from sqlalchemy.orm import Session

from app.fitness.service import FitnessService


def get_fitness_snapshot(db: Session) -> dict[str, Any]:
    return FitnessService(db).snapshot()


def format_fitness_context(snapshot: dict[str, Any]) -> str:
    lines = ["[Фитнес — сводка на сегодня]"]

    profile = snapshot.get("profile")
    if not profile:
        lines.append("Профиль не настроен. set_fitness_profile для целей ккал/БЖУ/воды.")
    else:
        lines.append(
            f"Цели: {profile.get('calorie_target')} ккал, "
            f"Б {profile.get('protein_g')} / Ж {profile.get('fat_g')} / У {profile.get('carbs_g')} г, "
            f"вода {profile.get('water_l')} л"
        )
        if profile.get("goal"):
            lines.append(
                f"Цель: {profile.get('goal')}, вес {profile.get('weight_kg')} кг, "
                f"рост {profile.get('height_cm')} см"
            )

    today = snapshot.get("today") or {}
    totals = today.get("totals") or {}
    targets = today.get("targets") or {}
    water_l = totals.get("water_ml", 0) / 1000
    water_target = targets.get("water_ml", 2500) / 1000

    lines.append("")
    lines.append(
        f"Съедено: {totals.get('calories', 0):.0f}/{targets.get('calories', 0):.0f} ккал · "
        f"Б {totals.get('protein_g', 0):.0f}/{targets.get('protein_g', 0):.0f} · "
        f"Ж {totals.get('fat_g', 0):.0f}/{targets.get('fat_g', 0):.0f} · "
        f"У {totals.get('carbs_g', 0):.0f}/{targets.get('carbs_g', 0):.0f} г"
    )
    lines.append(f"Вода: {water_l:.1f}/{water_target:.1f} л")

    workouts = today.get("workouts") or []
    if workouts:
        lines.append(f"Тренировок сегодня: {len(workouts)}")

    lines.append("")
    lines.append(
        "Правила: log_meal, log_water, log_weight, log_workout, get_fitness_summary, "
        "set_fitness_profile, calc_fitness_targets, lookup_food, lookup_exercise. "
        "Еда — оценка LLM (≈), пользователь может уточнить."
    )
    return "\n".join(lines)