mirror of https://github.com/kcal-app/kcal.git
113 lines
2.8 KiB
PHP
113 lines
2.8 KiB
PHP
<?php
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namespace App\Models;
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use Illuminate\Database\Eloquent\Factories\HasFactory;
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use Illuminate\Database\Eloquent\Model;
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use Illuminate\Database\Eloquent\Relations\BelongsTo;
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/**
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* @property int id
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* @property float amount Amount of food.
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* @property ?string unit Food unit (tsp, tbsp, cup, or grams).
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* @property int weight Weight of food in full food list (lowest first).
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* @property \App\Models\Food food
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* @property \App\Models\Recipe recipe
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* @property \Illuminate\Support\Carbon created_at
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* @property \Illuminate\Support\Carbon updated_at
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* @method float calories Get total calories.
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* @method float carbohydrates Get total carbohydrates.
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* @method float cholesterol Get total cholesterol.
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* @method float fat Get total fat.
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* @method float protein Get total protein.
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* @method float sodium Get total sodium.
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*/
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class FoodAmount extends Model
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{
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use HasFactory;
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/**
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* @inheritdoc
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*/
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protected $fillable = [
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'amount',
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'unit',
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'weight',
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];
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/**
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* The attributes that should be cast.
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*/
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protected $casts = [
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'amount' => 'float',
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'weight' => 'int',
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];
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/**
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* @inheritdoc
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*/
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protected $with = ['food'];
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/**
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* Nutrient calculation methods.
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*/
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private array $nutrientMethods = [
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'calories',
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'carbohydrates',
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'cholesterol',
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'fat',
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'protein',
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'sodium',
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];
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/**
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* Get the Food this amount belongs to.
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*/
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public function food(): BelongsTo {
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return $this->belongsTo(Food::class);
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}
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/**
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* Get the Recipe this amount belongs to.
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*/
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public function recipe(): BelongsTo {
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return $this->belongsTo(Recipe::class);
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}
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/**
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* Add nutrient calculations handling to overloading.
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*
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* @param string $method
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* @param array $parameters
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*
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* @return mixed
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*
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* @noinspection PhpMissingParamTypeInspection
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*/
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public function __call($method, $parameters): mixed {
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if (in_array($method, $this->nutrientMethods)) {
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return $this->food->{$method} * $this->unitMultiplier();
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}
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else {
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return parent::__call($method, $parameters);
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}
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}
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/**
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* Get the multiplier for the food unit based on weight.
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*
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* Unit weight will be specified for foods that are added by unit
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* (e.g. eggs, vegetables, etc.) and cup weight (the weight of the
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* food equal to one cup) will be specified for foods that are
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* measured (e.g. flour, milk, etc.).
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*/
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private function unitMultiplier(): float {
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return match ($this->unit) {
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null => $this->food->unit_weight,
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'tsp' => 1/48,
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'tbsp' => 1/16,
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default => 1
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} * $this->amount * ($this->food->cup_weight ?? 1) / 100;
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}
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}
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