Show chart of balance per day on dashboard

app/Http/Controllers/Api/DashboardController.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Repositories\DashboardRepository;
+use Carbon\CarbonImmutable;
+use Illuminate\Http\Request;
+
+class DashboardController extends Controller
+{
+    public function __invoke(DashboardRepository $dashboardRepository, Request $request)
+    {
+        /** @var ApiKey $apiKey */
+        $apiKey = $request->get('apiKey');
+
+        $space = $apiKey->user->spaces()->first();
+
+        return response()
+            ->json([
+                'daily_balance' => $dashboardRepository->getDailyBalance(
+                    spaceId: $space->id,
+                    year: CarbonImmutable::now()->year,
+                    month: CarbonImmutable::now()->month,
+                ),
+            ]);
+    }
+}

app/Http/Controllers/DashboardController.php

@@ -35,7 +35,11 @@ public function __invoke(Request $request)
             'mostExpensiveTags' => $mostExpensiveTags,
 
             'daysInMonth' => $daysInMonth,
-            'dailyBalance' => $this->dashboardRepository->getDailyBalance($currentYear, $currentMonth)
+            'dailyBalance' => $this->dashboardRepository->getDailyBalance(
+                session('space_id'),
+                $currentYear,
+                $currentMonth,
+            )
         ]);
     }
 }

app/Repositories/DashboardRepository.php

@@ -35,19 +35,19 @@ public function getTotalAmountSpent(string $year, string $month)
             ->sum('amount');
     }
 
-    public function getDailyBalance(string $year, string $month): array
+    public function getDailyBalance(int $spaceId, string $year, string $month): array
     {
         $daysInMonth = cal_days_in_month(CAL_GREGORIAN, $month, $year);
 
         $balanceTick = 0;
         $dailyBalance = [];
 
         for ($i = 1; $i <= $daysInMonth; $i++) {
-            $balanceTick -= Spending::ofSpace(session('space_id'))
+            $balanceTick -= Spending::ofSpace($spaceId)
                 ->where('happened_on', $year . '-' . $month . '-' . $i)
                 ->sum('amount');
 
-            $balanceTick += Earning::ofSpace(session('space_id'))
+            $balanceTick += Earning::ofSpace($spaceId)
                 ->where('happened_on', $year . '-' . $month . '-' . $i)
                 ->sum('amount');