feat: updates

app/Models/Account.php

@@ -2,23 +2,53 @@
 
 namespace App\Models;
 
+use App\Observers\AccountObserver;
+use Illuminate\Database\Eloquent\Attributes\ObservedBy;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
 use Illuminate\Database\Eloquent\Model;
 use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
 
+#[ObservedBy([AccountObserver::class])]
 class Account extends Model
 {
     use HasFactory;
 
-    protected $guarded= [];
+    protected $guarded = [];
 
-    public function accountType() : BelongsTo
+    public function accountType(): BelongsTo
     {
         return $this->belongsTo(AccountType::class);
     }
 
-    public function client() : BelongsTo
+    public function client(): BelongsTo
     {
         return $this->belongsTo(Client::class);
     }
+
+    public function getStartingBalanceAttribute()
+    {
+        if ($this->balances()->exists()) {
+            return $this->balances()
+                ->where('is_starting', true)
+                ->orderBy('id', 'desc')->first()->balance;
+        }
+
+        return null;
+    }
+
+    public function balances(): HasMany
+    {
+        return $this->hasMany(Balance::class);
+    }
+
+    public function getCurrentBalanceAttribute()
+    {
+        if ($this->balances()->exists()) {
+            return $this->balances()
+                ->orderBy('id', 'desc')->first()->balance;
+        }
+
+        return null;
+    }
 }