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

app/Models/Invoice.php

@@ -10,41 +10,58 @@ use Illuminate\Database\Eloquent\SoftDeletes;
 class Invoice extends Model
 {
     use HasFactory, SoftDeletes;
-    protected $table = 'invoice';
-    public $timestamps = true;
+
+    protected $table = 'invoices';
 
     protected $guarded = [];
+
+    protected $casts = [
+        'due_date' => 'date',
+        'paid_at' => 'datetime',
+        'auto_renew' => 'boolean',
+    ];
+
     public function customer()
     {
-        return $this->belongsTo(\App\Models\Customer::class);
-    }
-
-    public function payment()
-    {
-        return $this->belongsTo(\App\Models\Payment::class, 'payment_id', 'id');
-    }
-
-    public function invoiceItem()
-    {
-        return $this->hasMany(\App\Models\InvoiceItem::class)->with(['addons.addonItems', 'hosting', 'vps', 'os']);
+        return $this->belongsTo(Customer::class);
     }
 
+    /** The order that originated this invoice. */
     public function order()
     {
-        return $this->belongsTo(\App\Models\Order::class, 'id', 'invoice_id');
+        return $this->belongsTo(Order::class, 'order_id');
     }
 
+    /** Line items on this invoice. */
+    public function invoiceItems()
+    {
+        return $this->hasMany(InvoiceItem::class, 'invoice_id');
+    }
+
+    /** Uploaded payment-proof or supporting documents. */
     public function attachments()
     {
-        return $this->hasMany(\App\Models\InvoiceAttachment::class);
+        return $this->hasMany(InvoiceAttachment::class);
     }
 
-    public function getStatus()
+    /** Services whose active invoice is this one (updated on each renewal). */
+    public function services()
     {
-        return match ($this->attributes['status']) {
+        return $this->hasMany(Service::class, 'invoice_id');
+    }
+
+    // -------------------------------------------------------------------------
+    // Helpers
+    // -------------------------------------------------------------------------
+
+    public function getStatus(): string
+    {
+        return match ($this->status) {
             1 => '<span class="bg-red-100 text-red-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-red-900 dark:text-red-300">Chưa thanh toán</span>',
             2 => '<span class="bg-lime-100 text-lime-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-lime-900 dark:text-lime-300">Đã thanh toán</span>',
-            default => '<span class="bg-red-100 text-red-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-red-900 dark:text-red-300">Đã hủy</span>'
+            3 => '<span class="bg-gray-100 text-gray-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-gray-900 dark:text-gray-300">Đã hủy</span>',
+            4 => '<span class="bg-orange-100 text-orange-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-orange-900 dark:text-orange-300">Quá hạn</span>',
+            default => '<span class="bg-red-100 text-red-800 text-xs font-medium me-2 px-2.5 py-0.5 rounded-sm dark:bg-red-900 dark:text-red-300">Không xác định</span>',
         };
     }