feat: history and calculate needs for user
This commit is contained in:
@@ -0,0 +1,227 @@
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<?php
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namespace App\Services;
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use App\Enums\PacePreference;
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use App\Enums\WeeklyReviewStatus;
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use App\Enums\WeightGoal;
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use App\Models\MealPosts;
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use App\Models\User;
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use App\Models\WeeklyReview;
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use Carbon\CarbonImmutable;
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use Carbon\CarbonInterface;
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use Illuminate\Support\Collection;
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class WeeklyReviewService
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{
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/**
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* Generate or refresh a review for the last completed week.
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*/
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public function generate(User $user, ?CarbonImmutable $periodStart = null): WeeklyReview
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{
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$periodStart ??= CarbonImmutable::now()->subWeek()->startOfWeek(CarbonInterface::MONDAY);
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$periodStart = $periodStart->startOfDay();
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$periodEnd = $periodStart->endOfWeek(CarbonInterface::SUNDAY);
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$existingReview = $user->weeklyReviews()->whereDate('period_start', $periodStart)->first();
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if ($existingReview?->accepted_at !== null) {
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return $existingReview;
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}
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$currentPlan = $user->nutritionPlans()->where('is_active', true)->latest('effective_from')->firstOrFail();
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$nutritionPlan = $user->nutritionPlans()
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->where('effective_from', '<=', $periodEnd)
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->latest('effective_from')
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->first()
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?? $currentPlan;
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$meals = MealPosts::query()
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->where('user_id', $user->getKey())
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->whereBetween('eaten_at', [$periodStart, $periodEnd])
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->get(['calories', 'proteins', 'carbs', 'fats', 'eaten_at']);
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$loggedDaysCount = $meals->pluck('eaten_at')
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->map(fn (CarbonInterface $date): string => $date->toDateString())
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->unique()
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->count();
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$averages = $this->nutritionAverages($meals, $loggedDaysCount);
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$weights = $user->weightEntries()
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->whereBetween('measured_at', [$periodStart->subWeek(), $periodEnd])
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->oldest('measured_at')
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->get();
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$trend = $this->weightTrend($weights);
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$latestWeight = $weights->last()?->weight_kg ?? $user->latestWeightEntry()->value('weight_kg');
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$targetTrend = $latestWeight === null ? null : $this->targetWeightTrend(
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(float) $latestWeight,
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$user->weight_goal,
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$user->pace_preference,
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);
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[$status, $adjustment, $messageCode] = $this->recommendation(
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loggedDaysCount: $loggedDaysCount,
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weightCount: $weights->count(),
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trend: $trend,
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targetTrend: $targetTrend,
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averageCalories: $averages['calories'],
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planCalories: $nutritionPlan->calories,
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weightGoal: $user->weight_goal,
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);
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if ($nutritionPlan->getKey() !== $currentPlan->getKey()) {
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$status = WeeklyReviewStatus::INSUFFICIENT_DATA;
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$adjustment = 0;
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$messageCode = 'WEEKLY_REVIEW_PLAN_CHANGED';
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}
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return $user->weeklyReviews()->updateOrCreate(
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['period_start' => $periodStart->toDateString()],
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[
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'nutrition_plan_id' => $nutritionPlan->getKey(),
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'period_end' => $periodEnd->toDateString(),
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'average_calories' => $averages['calories'],
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'average_proteins' => $averages['proteins'],
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'average_carbs' => $averages['carbs'],
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'average_fats' => $averages['fats'],
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'logged_days_count' => $loggedDaysCount,
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'weight_entries_count' => $weights->count(),
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'weight_trend_kg' => $trend,
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'target_weight_trend_kg' => $targetTrend,
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'status' => $status,
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'recommended_calorie_adjustment' => $adjustment,
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'message_code' => $messageCode,
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'metrics' => [
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'analysisStart' => $periodStart->subWeek()->toDateString(),
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'analysisEnd' => $periodEnd->toDateString(),
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'firstWeightKg' => $weights->first()?->weight_kg,
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'lastWeightKg' => $weights->last()?->weight_kg,
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'nutritionPlanCalories' => $nutritionPlan->calories,
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],
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'generated_at' => now(),
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],
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);
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}
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/**
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* @param Collection<int, MealPosts> $meals
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* @return array{calories: float, proteins: float, carbs: float, fats: float}
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*/
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private function nutritionAverages(Collection $meals, int $loggedDaysCount): array
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{
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$divisor = max(1, $loggedDaysCount);
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return [
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'calories' => round((float) $meals->sum('calories') / $divisor, 2),
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'proteins' => round((float) $meals->sum('proteins') / $divisor, 2),
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'carbs' => round((float) $meals->sum('carbs') / $divisor, 2),
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'fats' => round((float) $meals->sum('fats') / $divisor, 2),
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];
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}
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private function weightTrend(Collection $weights): ?float
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{
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$first = $weights->first();
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$last = $weights->last();
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if ($weights->count() < 4 || $first === null || $last === null) {
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return null;
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}
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$days = max(1, $first->measured_at->diffInDays($last->measured_at));
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if ($days < 7) {
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return null;
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}
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return round((($last->weight_kg - $first->weight_kg) / $days) * 7, 2);
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}
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private function targetWeightTrend(
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float $weightKg,
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WeightGoal $weightGoal,
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PacePreference $pacePreference,
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): float {
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$percentage = match ($weightGoal) {
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WeightGoal::LOSE_WEIGHT => match ($pacePreference) {
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PacePreference::SLOW => -0.0025,
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PacePreference::NORMAL => -0.005,
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PacePreference::FAST => -0.0075,
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},
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WeightGoal::GAIN_WEIGHT => match ($pacePreference) {
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PacePreference::SLOW => 0.00125,
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PacePreference::NORMAL => 0.0025,
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PacePreference::FAST => 0.00375,
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},
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WeightGoal::MAINTAIN_WEIGHT => 0,
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};
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return round($weightKg * $percentage, 2);
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}
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/**
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* @return array{WeeklyReviewStatus, int, string}
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*/
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private function recommendation(
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int $loggedDaysCount,
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int $weightCount,
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?float $trend,
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?float $targetTrend,
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float $averageCalories,
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int $planCalories,
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WeightGoal $weightGoal,
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): array {
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if ($loggedDaysCount < 5 || $weightCount < 4 || $trend === null || $targetTrend === null) {
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return [
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WeeklyReviewStatus::INSUFFICIENT_DATA,
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0,
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'WEEKLY_REVIEW_INSUFFICIENT_TRACKING',
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];
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}
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$calorieDifferenceRatio = abs($averageCalories - $planCalories) / max(1, $planCalories);
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if ($calorieDifferenceRatio > 0.15) {
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return [
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WeeklyReviewStatus::INSUFFICIENT_DATA,
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0,
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'WEEKLY_REVIEW_INSUFFICIENT_ADHERENCE',
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];
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}
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$tolerance = $weightGoal === WeightGoal::MAINTAIN_WEIGHT
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? 0.2
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: max(0.1, abs($targetTrend) * 0.35);
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$difference = $trend - $targetTrend;
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if (abs($difference) <= $tolerance) {
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return [
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WeeklyReviewStatus::ON_TRACK,
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0,
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'WEEKLY_REVIEW_ON_TRACK',
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];
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}
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$adjustment = match ($weightGoal) {
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WeightGoal::LOSE_WEIGHT => $difference > 0 ? -100 : 100,
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WeightGoal::GAIN_WEIGHT => $difference < 0 ? 100 : -100,
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WeightGoal::MAINTAIN_WEIGHT => $trend > 0 ? -100 : 100,
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};
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return [
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WeeklyReviewStatus::ADJUSTMENT_RECOMMENDED,
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$adjustment,
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$this->adjustmentMessage($weightGoal, $adjustment),
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];
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}
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private function adjustmentMessage(WeightGoal $weightGoal, int $adjustment): string
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{
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return match ($weightGoal) {
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WeightGoal::LOSE_WEIGHT => $adjustment < 0
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? 'WEEKLY_REVIEW_LOSS_SLOWER'
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: 'WEEKLY_REVIEW_LOSS_FASTER',
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WeightGoal::GAIN_WEIGHT => $adjustment > 0
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? 'WEEKLY_REVIEW_GAIN_SLOWER'
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: 'WEEKLY_REVIEW_GAIN_FASTER',
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WeightGoal::MAINTAIN_WEIGHT => $adjustment > 0
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? 'WEEKLY_REVIEW_MAINTENANCE_DOWN'
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: 'WEEKLY_REVIEW_MAINTENANCE_UP',
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};
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}
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}
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