mirror of https://github.com/kcal-app/kcal.git
102 lines
2.6 KiB
PHP
102 lines
2.6 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 ingredient.
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* @property ?string unit Ingredient unit (tsp, tbsp, cup, or grams).
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* @property int weight Weight of ingredient in full ingredient list (lowest first).
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* @property \App\Models\Ingredient ingredient
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* @property \App\Models\Recipe recipe
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*/
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class IngredientAmount 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 array $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 array $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 array $with = ['ingredient'];
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/**
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* Get the Ingredient this amount belongs to.
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*/
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public function ingredient(): BelongsTo {
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return $this->belongsTo(Ingredient::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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* Get total calories for the ingredient amount.
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*/
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public function calories(): float {
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return $this->ingredient->calories * $this->unitMultiplier();
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}
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/**
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* Get total protein for the ingredient amount.
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*/
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public function protein(): float {
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return $this->ingredient->protein * $this->unitMultiplier();
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}
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/**
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* Get total fat for the ingredient amount.
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*/
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public function fat(): float {
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return $this->ingredient->fat * $this->unitMultiplier();
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}
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/**
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* Get total carbohydrates for the ingredient amount.
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*/
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public function carbohydrates(): float {
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return $this->ingredient->carbohydrates * $this->unitMultiplier();
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}
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/**
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* Get the multiplier for the ingredient unit based on weight.
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*
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* Unit weight will be specified for ingredients that are added by unit
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* (e.g. eggs, vegetables, etc.) and cup weight (the weight of the
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* ingredient equal to one cup) will be specified for ingredients that are
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* measured (e.g. flour, milk, etc.).
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*/
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private function unitMultiplier(): float {
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return match ($this->unit) {
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null => $this->ingredient->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->ingredient->cup_weight ?? 1) / 100;
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}
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}
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