mitai-jinkendo/backend/data_layer/nutrition_metrics.py
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feat: Update Gitea issues index and enhance data layer metrics
- Updated the Gitea issues index to reflect the latest state as of 2026-04-11, adding issue #76 to the list.
- Refined data handling in `activity_metrics.py`, `body_metrics.py`, `nutrition_metrics.py`, and `scores.py` to ensure consistent float conversions for calculations, improving accuracy in metric evaluations.
- Enhanced the calculation logic for various metrics to handle potential None values more robustly, ensuring smoother data processing and improved reliability across the application.

These changes improve the clarity of the Gitea issues documentation and enhance the overall accuracy and reliability of health and fitness metrics.
2026-04-11 22:14:45 +02:00

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"""
Nutrition Metrics Data Layer
Provides structured data for nutrition tracking and analysis.
Functions:
- get_nutrition_average_data(): Average calor
ies, protein, carbs, fat
- get_nutrition_days_data(): Number of days with nutrition data
- get_protein_targets_data(): Protein targets based on weight
- get_energy_balance_data(): Energy balance calculation
- get_protein_adequacy_data(): Protein adequacy score
- get_macro_consistency_data(): Macro consistency analysis
All functions return structured data (dict) without formatting.
Use placeholder_resolver.py for formatted strings for AI.
Phase 0c: Multi-Layer Architecture
Version: 1.0
"""
from typing import Dict, List, Optional
from datetime import datetime, timedelta, date
from db import get_db, get_cursor, r2d
from data_layer.utils import calculate_confidence, safe_float, safe_int
# Fallback TDEE (kcal/day) when demographics for MifflinSt Jeor are incomplete.
TDEE_KCAL_PER_KG_BODYWEIGHT = 32.5
# PAL applied to MSJ BMR when height, sex, dob and weight are available (moderate activity).
TDEE_PAL_MODERATE = 1.55
def _age_years_from_dob(dob) -> Optional[int]:
if dob is None:
return None
try:
if isinstance(dob, str):
birth = datetime.strptime(dob[:10], "%Y-%m-%d").date()
else:
birth = dob
today = date.today()
return today.year - birth.year - ((today.month, today.day) < (birth.month, birth.day))
except Exception:
return None
def _mifflin_st_jeor_bmr_kcal(
weight_kg: float, height_cm: float, age_years: int, sex_is_male: bool
) -> float:
if sex_is_male:
return 10.0 * weight_kg + 6.25 * height_cm - 5.0 * age_years + 5.0
return 10.0 * weight_kg + 6.25 * height_cm - 5.0 * age_years - 161.0
def estimate_tdee_kcal_from_latest_weight(profile_id: str) -> Optional[float]:
"""
Estimated TDEE (kcal/day).
Primary: MifflinSt Jeor BMR × TDEE_PAL_MODERATE when latest weight plus
profiles.height, profiles.sex, profiles.dob are usable.
Fallback: latest weight (kg) × TDEE_KCAL_PER_KG_BODYWEIGHT (legacy heuristic).
Returns None if no weight on record.
"""
with get_db() as conn:
cur = get_cursor(conn)
cur.execute(
"""SELECT weight FROM weight_log
WHERE profile_id=%s ORDER BY date DESC LIMIT 1""",
(profile_id,),
)
wrow = cur.fetchone()
if not wrow or wrow["weight"] is None:
return None
weight_kg = float(wrow["weight"])
cur.execute(
"SELECT height, sex, dob FROM profiles WHERE id=%s",
(profile_id,),
)
prow = cur.fetchone()
if prow and prow.get("height") and prow.get("sex") is not None and prow.get("dob"):
height_cm = float(prow["height"])
age = _age_years_from_dob(prow["dob"])
if age is not None and 10 < age < 120 and height_cm > 50:
sex_raw = str(prow["sex"]).strip().lower()
sex_is_male = sex_raw in ("m", "male", "männlich", "mann")
bmr = _mifflin_st_jeor_bmr_kcal(weight_kg, height_cm, age, sex_is_male)
if bmr > 400:
return bmr * TDEE_PAL_MODERATE
return weight_kg * TDEE_KCAL_PER_KG_BODYWEIGHT
def _get_profile_goal_mode(profile_id: str) -> str:
"""Strategic goal_mode from profiles (Phase 0a); defaults to health."""
with get_db() as conn:
cur = get_cursor(conn)
cur.execute("SELECT goal_mode FROM profiles WHERE id=%s", (profile_id,))
row = cur.fetchone()
if row and row.get("goal_mode"):
g = str(row["goal_mode"]).strip().lower()
if g:
return g
return "health"
def get_nutrition_average_data(
profile_id: str,
days: int = 30
) -> Dict:
"""
Get average nutrition values for all macros.
Args:
profile_id: User profile ID
days: Analysis window (default 30)
Returns:
{
"kcal_avg": float,
"protein_avg": float,
"carbs_avg": float,
"fat_avg": float,
"data_points": int,
"confidence": str,
"days_analyzed": int
}
Migration from Phase 0b:
OLD: get_nutrition_avg(pid, field, days) per field
NEW: All macros in one call
"""
with get_db() as conn:
cur = get_cursor(conn)
cutoff = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
# Mean over calendar days (per-day sums), not over raw log rows.
cur.execute(
"""SELECT
AVG(daily_kcal) AS kcal_avg,
AVG(daily_protein) AS protein_avg,
AVG(daily_carbs) AS carbs_avg,
AVG(daily_fat) AS fat_avg,
COUNT(*)::int AS day_count
FROM (
SELECT date,
COALESCE(SUM(kcal), 0)::float AS daily_kcal,
COALESCE(SUM(protein_g), 0)::float AS daily_protein,
COALESCE(SUM(carbs_g), 0)::float AS daily_carbs,
COALESCE(SUM(fat_g), 0)::float AS daily_fat
FROM nutrition_log
WHERE profile_id=%s AND date >= %s
GROUP BY date
) AS daily""",
(profile_id, cutoff),
)
row = cur.fetchone()
if not row or row["day_count"] == 0:
return {
"kcal_avg": 0.0,
"protein_avg": 0.0,
"carbs_avg": 0.0,
"fat_avg": 0.0,
"data_points": 0,
"confidence": "insufficient",
"days_analyzed": days
}
data_points = row["day_count"]
confidence = calculate_confidence(data_points, days, "general")
return {
"kcal_avg": safe_float(row['kcal_avg']),
"protein_avg": safe_float(row['protein_avg']),
"carbs_avg": safe_float(row['carbs_avg']),
"fat_avg": safe_float(row['fat_avg']),
"data_points": data_points,
"confidence": confidence,
"days_analyzed": days
}
def get_nutrition_days_data(
profile_id: str,
days: int = 30
) -> Dict:
"""
Count days with nutrition data.
Args:
profile_id: User profile ID
days: Analysis window (default 30)
Returns:
{
"days_with_data": int,
"days_analyzed": int,
"coverage_pct": float,
"confidence": str
}
"""
with get_db() as conn:
cur = get_cursor(conn)
cutoff = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
cur.execute(
"""SELECT COUNT(DISTINCT date) as days
FROM nutrition_log
WHERE profile_id=%s AND date >= %s""",
(profile_id, cutoff)
)
row = cur.fetchone()
days_with_data = row['days'] if row else 0
coverage_pct = (days_with_data / days * 100) if days > 0 else 0
confidence = calculate_confidence(days_with_data, days, "general")
return {
"days_with_data": days_with_data,
"days_analyzed": days,
"coverage_pct": coverage_pct,
"confidence": confidence
}
def get_protein_targets_data(
profile_id: str
) -> Dict:
"""
Calculate protein targets based on current weight.
Targets:
- Low: 1.6 g/kg (maintenance)
- High: 2.2 g/kg (muscle building)
Args:
profile_id: User profile ID
Returns:
{
"current_weight": float,
"protein_target_low": float, # 1.6 g/kg
"protein_target_high": float, # 2.2 g/kg
"confidence": str
}
"""
with get_db() as conn:
cur = get_cursor(conn)
cur.execute(
"""SELECT weight FROM weight_log
WHERE profile_id=%s ORDER BY date DESC LIMIT 1""",
(profile_id,)
)
row = cur.fetchone()
if not row:
return {
"current_weight": 0.0,
"protein_target_low": 0.0,
"protein_target_high": 0.0,
"confidence": "insufficient"
}
weight = safe_float(row['weight'])
return {
"current_weight": weight,
"protein_target_low": weight * 1.6,
"protein_target_high": weight * 2.2,
"confidence": "high"
}
def get_energy_balance_data(
profile_id: str,
days: int = 7
) -> Dict:
"""
Energy balance (intake - estimated expenditure), kcal/day.
Intake: mean of daily total kcal (sum per calendar day).
TDEE: estimate_tdee_kcal_from_latest_weight (MSJ × PAL oder kg-Fallback).
"""
with get_db() as conn:
cur = get_cursor(conn)
cutoff = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
cur.execute(
"""SELECT date, SUM(kcal)::float AS daily_kcal
FROM nutrition_log
WHERE profile_id=%s AND date >= %s AND kcal IS NOT NULL
GROUP BY date
ORDER BY date""",
(profile_id, cutoff),
)
daily_rows = cur.fetchall()
if not daily_rows:
return {
"energy_balance": 0.0,
"avg_intake": 0.0,
"estimated_tdee": 0.0,
"status": "unknown",
"confidence": "insufficient",
"days_analyzed": days,
"data_points": 0,
}
daily_totals = [safe_float(r["daily_kcal"]) for r in daily_rows]
avg_intake = sum(daily_totals) / len(daily_totals)
data_points = len(daily_totals)
estimated_tdee = estimate_tdee_kcal_from_latest_weight(profile_id)
if estimated_tdee is None:
return {
"energy_balance": 0.0,
"avg_intake": avg_intake,
"estimated_tdee": 0.0,
"status": "unknown",
"confidence": "insufficient",
"days_analyzed": days,
"data_points": data_points
}
energy_balance = avg_intake - estimated_tdee
if energy_balance < -200:
status = "deficit"
elif energy_balance > 200:
status = "surplus"
else:
status = "maintenance"
confidence = calculate_confidence(data_points, days, "general")
return {
"energy_balance": energy_balance,
"avg_intake": avg_intake,
"estimated_tdee": estimated_tdee,
"status": status,
"confidence": confidence,
"days_analyzed": days,
"data_points": data_points
}
def get_protein_adequacy_data(
profile_id: str,
days: int = 28
) -> Dict:
"""
Calculate protein adequacy score (0-100).
Score based on:
- Daily protein intake vs. target (1.6-2.2 g/kg)
- Consistency across days
Args:
profile_id: User profile ID
days: Analysis window (default 28)
Returns:
{
"adequacy_score": int, # 0-100
"avg_protein_g": float,
"target_protein_low": float,
"target_protein_high": float,
"protein_g_per_kg": float,
"days_in_target": int,
"days_with_data": int,
"confidence": str
}
"""
targets = get_protein_targets_data(profile_id)
with get_db() as conn:
cur = get_cursor(conn)
cutoff = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
cur.execute(
"""SELECT COALESCE(SUM(protein_g), 0)::float AS daily_protein
FROM nutrition_log
WHERE profile_id=%s AND date >= %s
GROUP BY date""",
(profile_id, cutoff),
)
rows = cur.fetchall()
if not rows or targets.get("confidence") == "insufficient" or targets["current_weight"] <= 0:
return {
"adequacy_score": 0,
"avg_protein_g": 0.0,
"target_protein_low": targets['protein_target_low'],
"target_protein_high": targets['protein_target_high'],
"protein_g_per_kg": 0.0,
"days_in_target": 0,
"days_with_data": 0,
"confidence": "insufficient"
}
daily_totals = [safe_float(r["daily_protein"]) for r in rows]
days_with_data = len(daily_totals)
low = targets["protein_target_low"]
high = targets["protein_target_high"]
days_in_target = sum(1 for d in daily_totals if low <= d <= high)
avg_protein = sum(daily_totals) / days_with_data
protein_g_per_kg = avg_protein / targets["current_weight"] if targets["current_weight"] > 0 else 0.0
target_pct = (days_in_target / days_with_data * 100) if days_with_data > 0 else 0
target_mid = (low + high) / 2
avg_vs_target = (avg_protein / target_mid) if target_mid > 0 else 0
adequacy_score = int(target_pct * 0.7 + min(avg_vs_target * 100, 100) * 0.3)
adequacy_score = max(0, min(100, adequacy_score))
confidence = calculate_confidence(days_with_data, days, "general")
return {
"adequacy_score": adequacy_score,
"avg_protein_g": avg_protein,
"target_protein_low": targets['protein_target_low'],
"target_protein_high": targets['protein_target_high'],
"protein_g_per_kg": protein_g_per_kg,
"days_in_target": days_in_target,
"days_with_data": days_with_data,
"confidence": confidence
}
def get_macro_consistency_data(
profile_id: str,
days: int = 28
) -> Dict:
"""
Calculate macro consistency score (0-100).
Measures how consistent macronutrient ratios are across days.
High consistency = predictable nutrition, easier to track progress.
Args:
profile_id: User profile ID
days: Analysis window (default 28)
Returns:
{
"consistency_score": int, # 0-100 (100 = very consistent)
"avg_protein_pct": float,
"avg_carbs_pct": float,
"avg_fat_pct": float,
"std_dev_protein": float, # Standard deviation
"std_dev_carbs": float,
"std_dev_fat": float,
"confidence": str,
"data_points": int
}
"""
with get_db() as conn:
cur = get_cursor(conn)
cutoff = (datetime.now() - timedelta(days=days)).strftime('%Y-%m-%d')
cur.execute(
"""SELECT
COALESCE(SUM(kcal), 0)::float AS kcal,
COALESCE(SUM(protein_g), 0)::float AS protein_g,
COALESCE(SUM(carbs_g), 0)::float AS carbs_g,
COALESCE(SUM(fat_g), 0)::float AS fat_g
FROM nutrition_log
WHERE profile_id=%s AND date >= %s
GROUP BY date
HAVING COALESCE(SUM(kcal), 0) > 0
AND COALESCE(SUM(protein_g), 0) > 0
AND COALESCE(SUM(carbs_g), 0) > 0
AND COALESCE(SUM(fat_g), 0) > 0""",
(profile_id, cutoff),
)
rows = cur.fetchall()
if len(rows) < 3:
return {
"consistency_score": 0,
"avg_protein_pct": 0.0,
"avg_carbs_pct": 0.0,
"avg_fat_pct": 0.0,
"std_dev_protein": 0.0,
"std_dev_carbs": 0.0,
"std_dev_fat": 0.0,
"confidence": "insufficient",
"data_points": len(rows)
}
import statistics
protein_pcts = []
carbs_pcts = []
fat_pcts = []
for row in rows:
total_kcal = safe_float(row['kcal'])
if total_kcal == 0:
continue
protein_kcal = safe_float(row['protein_g']) * 4
carbs_kcal = safe_float(row['carbs_g']) * 4
fat_kcal = safe_float(row['fat_g']) * 9
macro_kcal_total = protein_kcal + carbs_kcal + fat_kcal
if macro_kcal_total > 0:
protein_pcts.append(protein_kcal / macro_kcal_total * 100)
carbs_pcts.append(carbs_kcal / macro_kcal_total * 100)
fat_pcts.append(fat_kcal / macro_kcal_total * 100)
if len(protein_pcts) < 3:
return {
"consistency_score": 0,
"avg_protein_pct": 0.0,
"avg_carbs_pct": 0.0,
"avg_fat_pct": 0.0,
"std_dev_protein": 0.0,
"std_dev_carbs": 0.0,
"std_dev_fat": 0.0,
"confidence": "insufficient",
"data_points": len(protein_pcts)
}
# Calculate averages and standard deviations
avg_protein_pct = statistics.mean(protein_pcts)
avg_carbs_pct = statistics.mean(carbs_pcts)
avg_fat_pct = statistics.mean(fat_pcts)
std_protein = statistics.stdev(protein_pcts) if len(protein_pcts) > 1 else 0.0
std_carbs = statistics.stdev(carbs_pcts) if len(carbs_pcts) > 1 else 0.0
std_fat = statistics.stdev(fat_pcts) if len(fat_pcts) > 1 else 0.0
# Consistency score: inverse of average standard deviation
# Lower std_dev = higher consistency
avg_std = (std_protein + std_carbs + std_fat) / 3
# Score: 100 - (avg_std * scale_factor)
# avg_std of 5% = score 75, avg_std of 10% = score 50, avg_std of 20% = score 0
consistency_score = max(0, min(100, int(100 - (avg_std * 5))))
confidence = calculate_confidence(len(protein_pcts), days, "general")
return {
"consistency_score": consistency_score,
"avg_protein_pct": avg_protein_pct,
"avg_carbs_pct": avg_carbs_pct,
"avg_fat_pct": avg_fat_pct,
"std_dev_protein": std_protein,
"std_dev_carbs": std_carbs,
"std_dev_fat": std_fat,
"confidence": confidence,
"data_points": len(protein_pcts)
}
# ============================================================================
# Calculated Metrics (migrated from calculations/nutrition_metrics.py)
# ============================================================================
# These functions return simple values for placeholders.
# Use get_*_data() functions above for structured chart data.
def calculate_energy_balance_7d(profile_id: str) -> Optional[float]:
"""
7-day mean energy balance (kcal/day), same rules as get_energy_balance_data(..., 7).
"""
data = get_energy_balance_data(profile_id, 7)
if data["data_points"] < 4:
return None
tdee = data.get("estimated_tdee") or 0
if tdee <= 0:
return None
return round(float(data["energy_balance"]), 0)
def calculate_energy_deficit_surplus(profile_id: str, days: int = 7) -> Optional[str]:
"""
Classify energy balance as deficit/maintenance/surplus
Returns: 'deficit', 'maintenance', 'surplus', or None
"""
balance = calculate_energy_balance_7d(profile_id)
if balance is None:
return None
if balance < -200:
return 'deficit'
elif balance > 200:
return 'surplus'
else:
return 'maintenance'
def calculate_protein_g_per_kg(profile_id: str) -> Optional[float]:
"""Calculate average protein intake in g/kg bodyweight (last 7 days)"""
with get_db() as conn:
cur = get_cursor(conn)
# Get recent weight
cur.execute("""
SELECT weight
FROM weight_log
WHERE profile_id = %s
ORDER BY date DESC
LIMIT 1
""", (profile_id,))
weight_row = cur.fetchone()
if not weight_row:
return None
weight = float(weight_row['weight'])
# Get protein intake aggregated by day (SUM per day)
cur.execute("""
SELECT date, SUM(protein_g) as daily_protein
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '7 days'
AND protein_g IS NOT NULL
GROUP BY date
ORDER BY date DESC
""", (profile_id,))
daily_protein = [float(row['daily_protein']) for row in cur.fetchall()]
if len(daily_protein) < 4: # At least 4 days with data
return None
avg_protein = sum(daily_protein) / len(daily_protein)
protein_per_kg = avg_protein / weight
return round(protein_per_kg, 2)
def calculate_protein_days_in_target(profile_id: str, target_low: float = 1.6, target_high: float = 2.2) -> Optional[str]:
"""
Calculate how many days in last 7 were within protein target
Returns: "5/7" format or None
"""
with get_db() as conn:
cur = get_cursor(conn)
# Get recent weight
cur.execute("""
SELECT weight
FROM weight_log
WHERE profile_id = %s
ORDER BY date DESC
LIMIT 1
""", (profile_id,))
weight_row = cur.fetchone()
if not weight_row:
return None
weight = float(weight_row['weight'])
# Calculate protein target range (absolute values)
target_low_g = target_low * weight
target_high_g = target_high * weight
# Get protein intake aggregated by day (SUM per day)
cur.execute("""
SELECT date, SUM(protein_g) as daily_protein
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '7 days'
AND protein_g IS NOT NULL
GROUP BY date
ORDER BY date DESC
""", (profile_id,))
daily_data = cur.fetchall()
if len(daily_data) < 4: # At least 4 days with data
return None
# Count days in target range
days_in_target = 0
total_days = len(daily_data)
for row in daily_data:
daily_protein = float(row['daily_protein'])
if target_low_g <= daily_protein <= target_high_g:
days_in_target += 1
return f"{days_in_target}/{total_days}"
def calculate_protein_adequacy_28d(profile_id: str) -> Optional[int]:
"""
Protein adequacy score 0-100 (last 28 days).
Uses per-calendar-day total protein vs. average weight in the window (g/kg per day).
"""
import statistics
with get_db() as conn:
cur = get_cursor(conn)
cur.execute("""
SELECT AVG(weight) as avg_weight
FROM weight_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '28 days'
""", (profile_id,))
weight_row = cur.fetchone()
if not weight_row or not weight_row['avg_weight']:
return None
weight = float(weight_row['avg_weight'])
cur.execute("""
SELECT COALESCE(SUM(protein_g), 0)::float AS daily_protein
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '28 days'
GROUP BY date
""", (profile_id,))
daily_totals = [float(row['daily_protein']) for row in cur.fetchall()]
if len(daily_totals) < 18:
return None
protein_per_kg_values = [p / weight for p in daily_totals]
avg_protein_per_kg = sum(protein_per_kg_values) / len(protein_per_kg_values)
if 1.6 <= avg_protein_per_kg <= 2.2:
base_score = 100
elif avg_protein_per_kg < 1.6:
base_score = max(40, 100 - ((1.6 - avg_protein_per_kg) * 40))
else:
base_score = max(80, 100 - ((avg_protein_per_kg - 2.2) * 10))
std_dev = statistics.stdev(protein_per_kg_values)
if std_dev < 0.3:
consistency_bonus = 10
elif std_dev < 0.5:
consistency_bonus = 0
else:
consistency_bonus = -10
final_score = min(100, max(0, base_score + consistency_bonus))
return int(final_score)
def calculate_macro_consistency_score(profile_id: str) -> Optional[int]:
"""
Macro consistency score 0-100 (last 28 days).
CV of daily totals (kcal and macros), not raw log rows.
"""
import statistics
with get_db() as conn:
cur = get_cursor(conn)
cur.execute("""
SELECT
COALESCE(SUM(kcal), 0)::float AS dk,
COALESCE(SUM(protein_g), 0)::float AS dp,
COALESCE(SUM(fat_g), 0)::float AS df,
COALESCE(SUM(carbs_g), 0)::float AS dc
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '28 days'
GROUP BY date
HAVING COALESCE(SUM(kcal), 0) > 0
""", (profile_id,))
data = cur.fetchall()
if len(data) < 18:
return None
def cv(values):
if not values or len(values) < 2:
return None
mean = sum(values) / len(values)
if mean == 0:
return None
std_dev = statistics.stdev(values)
return std_dev / mean
calories_cv = cv([d['dk'] for d in data])
protein_cv = cv([d['dp'] for d in data if d['dp']])
fat_cv = cv([d['df'] for d in data if d['df']])
carbs_cv = cv([d['dc'] for d in data if d['dc']])
cv_values = [v for v in [calories_cv, protein_cv, fat_cv, carbs_cv] if v is not None]
if not cv_values:
return None
avg_cv = sum(cv_values) / len(cv_values)
if avg_cv < 0.2:
score = 100
elif avg_cv < 0.3:
score = 85
elif avg_cv < 0.4:
score = 70
elif avg_cv < 0.5:
score = 55
else:
score = max(30, 100 - (avg_cv * 100))
return int(score)
def calculate_intake_volatility(profile_id: str) -> Optional[str]:
"""
Classify intake volatility: 'stable', 'moderate', 'high'
"""
consistency = calculate_macro_consistency_score(profile_id)
if consistency is None:
return None
if consistency >= 80:
return 'stable'
elif consistency >= 60:
return 'moderate'
else:
return 'high'
def calculate_nutrition_score(profile_id: str, focus_weights: Optional[Dict] = None) -> Optional[int]:
"""
Nutrition adherence score 0-100
Weighted by user's nutrition-related focus areas
"""
if focus_weights is None:
# Import here to avoid circular dependency
from data_layer.scores import get_user_focus_weights
focus_weights = get_user_focus_weights(profile_id)
# Nutrition-related focus areas (English keys from DB; Gewichte immer float)
protein_intake = float(focus_weights.get('protein_intake', 0) or 0)
calorie_balance = float(focus_weights.get('calorie_balance', 0) or 0)
macro_consistency = float(focus_weights.get('macro_consistency', 0) or 0)
meal_timing = float(focus_weights.get('meal_timing', 0) or 0)
hydration = float(focus_weights.get('hydration', 0) or 0)
total_nutrition_weight = (
protein_intake + calorie_balance + macro_consistency + meal_timing + hydration
)
if total_nutrition_weight == 0:
return None # No nutrition goals
components = []
# 1. Calorie target adherence (if calorie_balance goal active)
if calorie_balance > 0:
calorie_score = _score_calorie_adherence(profile_id)
if calorie_score is not None:
components.append(('calories', calorie_score, calorie_balance))
# 2. Protein target adherence (if protein_intake goal active)
if protein_intake > 0:
protein_score = calculate_protein_adequacy_28d(profile_id)
if protein_score is not None:
components.append(('protein', protein_score, protein_intake))
# 3. Intake consistency (if macro_consistency goal active)
if macro_consistency > 0:
consistency_score = calculate_macro_consistency_score(profile_id)
if consistency_score is not None:
components.append(('consistency', consistency_score, macro_consistency))
# 4. Macro balance (always relevant if any nutrition goal)
if total_nutrition_weight > 0:
macro_score = _score_macro_balance(profile_id)
if macro_score is not None:
# Use 20% of total weight for macro balance
components.append(('macros', macro_score, total_nutrition_weight * 0.2))
if not components:
return None
# Weighted average (float: DB-Werte können Decimal sein)
total_score = sum(float(score) * float(weight) for _, score, weight in components)
total_weight = sum(float(weight) for _, _, weight in components)
return int(total_score / total_weight)
def _score_calorie_adherence(profile_id: str) -> Optional[int]:
"""Score calorie target adherence (0100) using 7d balance vs profiles.goal_mode."""
balance = calculate_energy_balance_7d(profile_id)
if balance is None:
return None
mode = _get_profile_goal_mode(profile_id)
b = float(balance)
def _weight_loss(x: float) -> int:
if -550 <= x <= -250:
return 100
if x > 450:
return 38
if -750 <= x < -550 or -250 < x <= 120:
return 82
if x < -1200:
return 52
if -950 <= x < -750 or 120 < x <= 350:
return 68
return 58
def _surplus_friendly(x: float) -> int:
if 80 <= x <= 480:
return 100
if -120 <= x < 80 or 480 < x <= 700:
return 86
if -380 <= x < -120:
return 68
if x > 850:
return 54
if x < -650:
return 44
return 72
def _maintenance(x: float) -> int:
a = abs(x)
if a <= 200:
return 100
if a <= 400:
return 84
if a <= 650:
return 70
if a <= 900:
return 55
return 40
if mode == "weight_loss":
return _weight_loss(b)
if mode in ("strength", "recomposition"):
return _surplus_friendly(b)
return _maintenance(b)
def _score_macro_balance(profile_id: str) -> Optional[int]:
"""Score macro balance (0-100)"""
with get_db() as conn:
cur = get_cursor(conn)
cur.execute("""
SELECT protein_g, fat_g, carbs_g, kcal
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '28 days'
AND protein_g IS NOT NULL
AND fat_g IS NOT NULL
AND carbs_g IS NOT NULL
ORDER BY date DESC
""", (profile_id,))
data = cur.fetchall()
if len(data) < 18:
return None
# Calculate average macro percentages
macro_pcts = []
for row in data:
total_kcal = (row['protein_g'] * 4) + (row['fat_g'] * 9) + (row['carbs_g'] * 4)
if total_kcal == 0:
continue
protein_pct = (row['protein_g'] * 4 / total_kcal) * 100
fat_pct = (row['fat_g'] * 9 / total_kcal) * 100
carbs_pct = (row['carbs_g'] * 4 / total_kcal) * 100
macro_pcts.append((protein_pct, fat_pct, carbs_pct))
if not macro_pcts:
return None
avg_protein_pct = sum(p for p, _, _ in macro_pcts) / len(macro_pcts)
avg_fat_pct = sum(f for _, f, _ in macro_pcts) / len(macro_pcts)
avg_carbs_pct = sum(c for _, _, c in macro_pcts) / len(macro_pcts)
# Reasonable ranges:
# Protein: 20-35%
# Fat: 20-35%
# Carbs: 30-55%
score = 100
# Protein score
if not (20 <= avg_protein_pct <= 35):
if avg_protein_pct < 20:
score -= (20 - avg_protein_pct) * 2
else:
score -= (avg_protein_pct - 35) * 1
# Fat score
if not (20 <= avg_fat_pct <= 35):
if avg_fat_pct < 20:
score -= (20 - avg_fat_pct) * 2
else:
score -= (avg_fat_pct - 35) * 2
# Carbs score
if not (30 <= avg_carbs_pct <= 55):
if avg_carbs_pct < 30:
score -= (30 - avg_carbs_pct) * 1.5
else:
score -= (avg_carbs_pct - 55) * 1.5
return max(40, min(100, int(score)))
def calculate_energy_availability_warning(profile_id: str) -> Optional[Dict]:
"""
Heuristic energy availability warning
Returns dict with warning level and reasons
"""
warnings = []
severity = 'none' # none, low, medium, high
# 1. Check for sustained large deficit
balance = calculate_energy_balance_7d(profile_id)
if balance and balance < -800:
warnings.append('Anhaltend großes Energiedefizit (>800 kcal/Tag)')
severity = 'medium'
if balance < -1200:
warnings.append('Sehr großes Energiedefizit (>1200 kcal/Tag)')
severity = 'high'
# 2. Check recovery score
from data_layer.recovery_metrics import calculate_recovery_score_v2
recovery = calculate_recovery_score_v2(profile_id)
if recovery and recovery < 50:
warnings.append('Recovery Score niedrig (<50)')
if severity == 'none':
severity = 'low'
elif severity == 'medium':
severity = 'high'
# 3. Check LBM trend
from data_layer.body_metrics import calculate_lbm_28d_change
lbm_change = calculate_lbm_28d_change(profile_id)
if lbm_change and lbm_change < -1.0:
warnings.append('Magermasse sinkt (>1kg in 28 Tagen)')
if severity == 'none':
severity = 'low'
elif severity in ['low', 'medium']:
severity = 'high'
# 4. Check sleep quality
from data_layer.recovery_metrics import calculate_sleep_quality_7d
sleep_quality = calculate_sleep_quality_7d(profile_id)
if sleep_quality and sleep_quality < 60:
warnings.append('Schlafqualität verschlechtert')
if severity == 'none':
severity = 'low'
if not warnings:
return None
return {
'severity': severity,
'warnings': warnings,
'recommendation': _get_energy_warning_recommendation(severity)
}
def _get_energy_warning_recommendation(severity: str) -> str:
"""Get recommendation text based on severity"""
if severity == 'high':
return ("Mögliche Unterversorgung erkannt. Erwäge eine Reduktion des Energiedefizits, "
"Erhöhung der Proteinzufuhr und mehr Erholung. Dies ist keine medizinische Diagnose.")
elif severity == 'medium':
return ("Hinweise auf aggressives Defizit. Beobachte Recovery, Schlaf und Magermasse genau.")
else:
return ("Leichte Hinweise auf Belastung. Monitoring empfohlen.")
def calculate_fiber_avg_7d(profile_id: str) -> Optional[float]:
"""Calculate average fiber intake (g/day) last 7 days"""
# TODO: Implement when fiber column added to nutrition_log
return None
def calculate_sugar_avg_7d(profile_id: str) -> Optional[float]:
"""Calculate average sugar intake (g/day) last 7 days"""
# TODO: Implement when sugar column added to nutrition_log
return None
def calculate_nutrition_data_quality(profile_id: str) -> Dict[str, any]:
"""
Assess data quality for nutrition metrics
Returns dict with quality score and details
"""
with get_db() as conn:
cur = get_cursor(conn)
# Nutrition entries last 28 days
cur.execute("""
SELECT COUNT(*) as total,
COUNT(protein_g) as with_protein,
COUNT(fat_g) as with_fat,
COUNT(carbs_g) as with_carbs
FROM nutrition_log
WHERE profile_id = %s
AND date >= CURRENT_DATE - INTERVAL '28 days'
""", (profile_id,))
counts = cur.fetchone()
total_entries = counts['total']
protein_coverage = counts['with_protein'] / total_entries if total_entries > 0 else 0
macro_coverage = min(counts['with_fat'], counts['with_carbs']) / total_entries if total_entries > 0 else 0
# Score components
frequency_score = min(100, (total_entries / 21) * 100) # 21 = 75% of 28 days
protein_score = protein_coverage * 100
macro_score = macro_coverage * 100
# Overall score (frequency 50%, protein 30%, macros 20%)
overall_score = int(
frequency_score * 0.5 +
protein_score * 0.3 +
macro_score * 0.2
)
# Confidence level
if overall_score >= 80:
confidence = "high"
elif overall_score >= 60:
confidence = "medium"
else:
confidence = "low"
return {
"overall_score": overall_score,
"confidence": confidence,
"measurements": {
"entries_28d": total_entries,
"protein_coverage_pct": int(protein_coverage * 100),
"macro_coverage_pct": int(macro_coverage * 100)
},
"component_scores": {
"frequency": int(frequency_score),
"protein": int(protein_score),
"macros": int(macro_score)
}
}