feat: Reimplement order and invoice management with new service and repository layers, introduce compression middleware, and update database schema.

app/Models/InvoiceItem.php

@@ -9,101 +9,49 @@ class InvoiceItem extends Model
 {
     use HasFactory;
 
-    protected $table = 'invoice_item';
-
-
-    // protected $fillable = [
-    //     'invoice_id',
-    //     'customer_id',
-    //     'billing',
-    //     'type_id',
-    //     'product_id',
-    //     'invoice_type',
-    //     'parent_id',
-    //     'relid',
-    //     'description',
-    //     'amount',
-    //     'tax',
-    //     'due_date'
-    // ];
+    protected $table = 'invoice_items';
 
     protected $guarded = [];
 
-    public $timestamps = true;
+    // -------------------------------------------------------------------------
+    // Relationships
+    // -------------------------------------------------------------------------
+
     public function invoice()
     {
-        return $this->belongsTo(\App\Models\Invoice::class, 'invoice_id');
+        return $this->belongsTo(Invoice::class, 'invoice_id');
     }
 
-    public function customer()
+    public function product()
     {
-        return $this->belongsTo(\App\Models\Customer::class);
-    }
-    public function type()
-    {
-        return $this->belongsTo(\App\Models\Type::class, 'invoice_type');
-    }
-    public function os()
-    {
-        return $this->belongsTo(Os::class, 'os_id');
+        return $this->belongsTo(Product::class, 'product_id');
     }
 
-    public function addons()
-    {
-        return $this->hasMany(InvoiceAddons::class, 'invoice_item_id')->with('addonItems');
-    }
+    // -------------------------------------------------------------------------
+    // Helpers
+    // -------------------------------------------------------------------------
 
-    public function hosting()
+    public function getBillingLabelAttribute(): string
     {
-        return $this->belongsTo(Hosting::class, 'product_id');
-    }
-
-    public function vps()
-    {
-        return $this->belongsTo(VPS::class, 'product_id');
-    }
-
-    // Remove the dynamic product relationship as it causes issues with eager loading
-
-    public function getProductAttribute()
-    {
-        return match ($this->product_type) {
-            3 => $this->hosting,
-            4 => $this->vps,
-            default => null,
+        return match ((int) $this->months) {
+            0  => 'One Time',
+            1  => 'Monthly',
+            3  => 'Quarterly',
+            6  => 'Semi-Annually',
+            12 => 'Annually',
+            24 => '2 Years',
+            36 => '3 Years',
+            default => $this->months . ' Months',
         };
     }
 
-    public function getBilling()
+    public function getTypeLabelAttribute(): string
     {
-        $months = $this->attributes['months'] ?? 0;
-        
-        return match ($months) {
-            0 => "One Time",
-            1 => "Monthly",
-            3 => "Quarterly",
-            6 => "Semi-Annually",
-            12 => "Annually",
-            24 => "2 Years",
-            36 => "3 Years",
-            default => $months . " Months"
+        return match ($this->type) {
+            'service' => 'Dịch vụ',
+            'addon'   => 'Addon',
+            'upgrade' => 'Nâng cấp',
+            default   => ucfirst($this->type),
         };
     }
-
-    public function GetRelidProduct()
-    {
-        $model = null;
-        switch ($this->type_id) {
-            case 3:
-                $model = ModuleHosting::with('server')->find($this->relid);
-                break;
-            case 4:
-                $model = ModuleVmware::with('ipAddress')->find($this->relid);
-                break;
-            default:
-                break;
-        }
-        return $model;
-    }
-
 }