Hoan thien core finance v2

app/Models/Contract.php

@@ -33,6 +33,11 @@ class Contract extends Model
         return $this->belongsTo(Product::class);
     }
 
+    public function paymentTemplate()
+    {
+        return $this->belongsTo(PaymentTemplate::class);
+    }
+
     public function customers()
     {
         return $this->belongsToMany(Customer::class, 'contract_customers')
@@ -73,6 +78,19 @@ class Contract extends Model
         return $this->hasMany(PaymentFine::class);
     }
 
+    /**
+     * Giá trị sau chiết khấu.
+     */
+    public function getFinalValueAttribute(): float
+    {
+        $result = \App\Services\DiscountEngine::calculate(
+            (float) $this->total_value,
+            $this->discount_details
+        );
+
+        return $result['final_value'];
+    }
+
     protected static function booted()
     {
         static::saving(function ($contract) {

app/Models/PaymentScheduleItem.php

@@ -20,6 +20,21 @@ class PaymentScheduleItem extends Model
         'due_date' => 'date',
     ];
 
+    public function getPaidAmountAttribute(): float
+    {
+        // Nếu đã eager load payments, dùng collection sum để tránh query thêm
+        if ($this->relationLoaded('payments')) {
+            return (float) $this->payments->sum('amount');
+        }
+
+        return (float) $this->payments()->sum('amount');
+    }
+
+    public function getRemainingAmountAttribute(): float
+    {
+        return (float) $this->amount - $this->paid_amount;
+    }
+
     public function template()
     {
         return $this->belongsTo(PaymentTemplate::class);

app/Models/User.php

@@ -7,12 +7,14 @@ use Database\Factories\UserFactory;
 use Illuminate\Database\Eloquent\Attributes\Fillable;
 use Illuminate\Database\Eloquent\Attributes\Hidden;
 use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Filament\Models\Contracts\FilamentUser;
+use Filament\Panel;
 use Illuminate\Foundation\Auth\User as Authenticatable;
 use Illuminate\Notifications\Notifiable;
 
 #[Fillable(['name', 'email', 'password'])]
 #[Hidden(['password', 'remember_token'])]
-class User extends Authenticatable
+class User extends Authenticatable implements FilamentUser
 {
     /** @use HasFactory<UserFactory> */
     use HasFactory, Notifiable;
@@ -29,4 +31,9 @@ class User extends Authenticatable
             'password' => 'hashed',
         ];
     }
+
+    public function canAccessPanel(Panel $panel): bool
+    {
+        return true;
+    }
 }