add habit back

app/Http/Controllers/HabitController.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Http\Controllers;
+
+use App\Models\Habit;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use Illuminate\Http\Response;
+use Illuminate\Support\Carbon;
+
+class HabitController extends Controller
+{
+    public function index(): JsonResponse
+    {
+        return response()->json(Habit::all()->toArray());
+    }
+
+    public function get(int $id): JsonResponse
+    {
+        return response()->json(Habit::find($id)->toArray());
+    }
+
+    public function create(Request $request): JsonResponse
+    {
+        $habit = Habit::create([
+            'name' => $request->get('name'),
+            'description' => $request->get('description'),
+            'target_count' => $request->get('targetCount'),
+            'current_count' => 0
+        ]);
+
+        return response()->json($habit->toArray());
+    }
+
+    public function currentCountUpdate(Request $request, int $id): JsonResponse
+    {
+        $habit = Habit::find($id);
+        $completions = $habit->completions ?? [];
+        $date = Carbon::now()->startOfDay()->format(Carbon::DEFAULT_TO_STRING_FORMAT);
+
+        if (in_array($date, $completions)) {
+            return response()->json(['message' => 'Привычка уже отмечена сегодня'], Response::HTTP_UNPROCESSABLE_ENTITY);
+        }
+
+        $habit->current_count += 1;
+        $completions[] = Carbon::now()->startOfDay()->format(Carbon::DEFAULT_TO_STRING_FORMAT);
+        $habit->completions = $completions;
+
+        if ($habit->current_count >= $habit->target_count) {
+            $habit->is_completed = true;
+        }
+        $habit->save();
+
+        return response()->json($habit->toArray());
+    }
+}

app/Models/Habit.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Habit extends Model
+{
+    protected $guarded = [];
+
+    protected $casts = [
+        'completions' => 'array'
+    ];
+}