"""Health data routes: summary / steps / heart-rate / sleep / activities."""
import datetime

from flask import Blueprint, request, g, jsonify

from auth import require_auth
from services import health as health_svc
from services import settings as settings_svc
from services import fitness_age

bp = Blueprint("health", __name__)


def _range():
    return request.args.get("startDate"), request.args.get("endDate")


@bp.route("/summary", methods=["GET"])
@require_auth
def summary():
    s, e = _range()
    return jsonify(health_svc.get_summary(g.user_id, s, e))


@bp.route("/steps", methods=["GET"])
@require_auth
def steps():
    s, e = _range()
    return jsonify(health_svc.get_steps(g.user_id, s, e))


@bp.route("/heart-rate", methods=["GET"])
@require_auth
def heart_rate():
    s, e = _range()
    return jsonify(health_svc.get_heart_rate(g.user_id, s, e))


@bp.route("/sleep", methods=["GET"])
@require_auth
def sleep():
    s, e = _range()
    return jsonify(health_svc.get_sleep(g.user_id, s, e))


@bp.route("/activities", methods=["GET"])
@require_auth
def activities():
    s, e = _range()
    return jsonify(health_svc.get_activities(g.user_id, s, e))


@bp.route("/fitness-age", methods=["GET"])
@require_auth
def body_age():
    """身体年龄, computed from the profile plus the most recent readings.

    VO2max only refreshes after an outdoor run or ride, so the search window
    is wide: the last recorded value is still the current one.
    """
    profile = settings_svc.get_raw(g.user_id)
    start = (datetime.date.today() - datetime.timedelta(days=180)).isoformat()
    days = health_svc.get_summary(g.user_id, start, None)

    def latest(key):
        for day in reversed(days):
            if day.get(key):
                return day[key]
        return None

    return jsonify(fitness_age.estimate(
        age=settings_svc.age_from(profile["birth_date"]),
        sex=profile["sex"],
        vo2max=latest("vo2max"),
        resting_hr=latest("heartRate"),
        bmi=settings_svc.bmi_from(profile["height_cm"], profile["weight_kg"]),
    ))


@bp.route("/badges", methods=["GET"])
@require_auth
def badges():
    """Earned badges (奖励), most recent first."""
    return jsonify(health_svc.get_badges(g.user_id))


@bp.route("/personal-records", methods=["GET"])
@require_auth
def personal_records():
    return jsonify(health_svc.get_personal_records(g.user_id))