Initial commit

app/Http/Controllers/Calculator.php

@@ -0,0 +1,38 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Ingredient;
+use App\Models\Remainder;
+use Database\Seeders\IngredientsSeeder;
+use Illuminate\Http\Request;
+use Illuminate\View\View;
+
+class Calculator extends Controller
+{
+    /**
+     * Показать профиль конкретного пользователя.
+     */
+    public function index(): View
+    {
+        $allWeights   = 0;
+        $allRemainder = 0;
+        $elements     = Ingredient::all();
+
+        foreach ($elements as &$element) {
+            $allWeights += $element['batch_weight'];
+            $remainderModel = Remainder::where('ingredient_id', $element['id'])->first();
+            $element['remainder'] = $remainderModel ? $remainderModel['remainder'] : 0;
+            $allRemainder += $element['remainder'];
+        }
+
+        return view(
+            'calculator',
+            [
+                'elements'     => $elements,
+                'allWeights'   => $allWeights,
+                'allRemainder' => $allRemainder,
+            ]
+        );
+    }
+}