Added EmptyDraft feature and Update Item of TransactionDraft

Added TransactionDraft getDiscountTotal method

app/Cart/CartCollection.php

@@ -66,6 +66,13 @@ class CartCollection
         return $content[$draftKey];
     }
 
+    public function emptyDraft($draftKey)
+    {
+        $content = $this->getContent();
+        $content[$draftKey]->empty();
+        $this->session->put($this->instance, $content);
+    }
+
     public function removeDraft($draftKey)
     {
         $content = $this->getContent();

app/Cart/TransactionDraft.php

@@ -43,6 +43,11 @@ abstract class TransactionDraft
         unset($this->items[$itemKey]);
     }
 
+    public function empty()
+    {
+        $this->items = [];
+    }
+
     public function getTotal()
     {
         return $this->items()->sum('subtotal');
@@ -53,6 +58,11 @@ abstract class TransactionDraft
         return $this->items()->sum('qty');
     }
 
+    public function getDiscountTotal()
+    {
+        return $this->items()->sum('item_discount_subtotal');
+    }
+
     public function updateItem($itemKey, $newItemData)
     {
         if (!isset($this->items[$itemKey]))

app/Http/Controllers/CartController.php

@@ -35,12 +35,24 @@ class CartController extends Controller
         return redirect()->route('cart.index', $item->draftKey);
     }
 
+    public function updateDraftItem(Request $request, $draftKey)
+    {
+        $this->cart->updateDraftItem($draftKey, $request->item_key, $request->only('qty','item_discount'));
+        return redirect()->route('cart.index', $draftKey);
+    }
+
     public function removeDraftItem(Request $request, $draftKey)
     {
         $this->cart->removeItemFromDraft($draftKey, $request->item_index);
         return redirect()->route('cart.index', $draftKey);
     }
 
+    public function empty($draftKey)
+    {
+        $this->cart->emptyDraft($draftKey);
+        return redirect()->route('cart.index', $draftKey);
+    }
+
     public function remove(Request $request)
     {
         $this->cart->removeDraft($request->draft_key);

routes/web.php

@@ -20,6 +20,8 @@ Auth::routes();
 Route::get('/home', 'HomeController@index')->name('home');
 Route::post('cart/add-draft/{product}', 'CartController@add')->name('cart.add');
 Route::post('cart/add-draft-item/{draftKey}/{product}', 'CartController@addDraftItem')->name('cart.add-draft-item');
+Route::patch('cart/update-draft-item/{draftKey}', 'CartController@updateDraftItem')->name('cart.update-draft-item');
 Route::delete('cart/remove-draft-item/{draftKey}', 'CartController@removeDraftItem')->name('cart.remove-draft-item');
+Route::delete('cart/empty/{draftKey}', 'CartController@empty')->name('cart.empty');
 Route::delete('cart/remove', 'CartController@remove')->name('cart.remove');
 Route::delete('cart/destroy', 'CartController@destroy')->name('cart.destroy');

tests/Feature/Cart/CartControllerTest.php

@@ -71,7 +71,7 @@ class CartControllerTest extends TestCase
         $this->assertEquals(2, $cashDraft->getTotalQty());
         $this->assertEquals(2200, $cashDraft->getTotal());
 
-        // Add Product as CashDraft item
+        // Remove Item Product from CashDraft
         $response = $this->delete(route('cart.remove-draft-item', [$cashDraft->draftKey]), [
             'item_index' => 0
         ]);
@@ -93,7 +93,7 @@ class CartControllerTest extends TestCase
         $this->assertFalse($cart->isEmpty());
         $this->assertEquals(1, $cart->count());
 
-        // Add Product as CashDraft item
+        // Remove a transaction draft
         $response = $this->delete(route('cart.remove'), [
             'draft_key' => $cashDraft->draftKey
         ]);
@@ -114,9 +114,61 @@ class CartControllerTest extends TestCase
         $this->assertFalse($cart->isEmpty());
         $this->assertEquals(2, $cart->count());
 
-        // Add Product as CashDraft item
+        // Destroy cart (empty out cart)
         $response = $this->delete(route('cart.destroy'));
 
         $this->assertTrue($cart->isEmpty());
     }
+
+    /** @test */
+    public function user_can_empty_out_transaction_draft()
+    {
+        $this->loginAsUser();
+
+        $cart = new CartCollection;
+        $cashDraft = new CashDraft;
+        $product = factory(Product::class)->create(['cash_price' => 1100], ['credit_price' => 1000]);
+        $item  = new Item($product, 2);
+
+        $cashDraft->addItem($item);
+        $cart->add($cashDraft);
+
+        $this->assertEquals(2, $cashDraft->getTotalQty());
+        $this->assertEquals(2200, $cashDraft->getTotal());
+
+        // Empty out a transaction draft
+        $response = $this->delete(route('cart.empty', $cashDraft->draftKey));
+
+        $this->assertEquals(0, $cashDraft->getTotalQty());
+        $this->assertCount(0, $cashDraft->items());
+        $this->assertEquals(0, $cashDraft->getTotal());
+    }
+
+    /** @test */
+    public function user_can_update_draft_item_qty_and_item_discount_in_a_draft()
+    {
+        $this->loginAsUser();
+
+        $cart = new CartCollection;
+        $cashDraft = new CashDraft;
+        $product = factory(Product::class)->create(['cash_price' => 1100], ['credit_price' => 1000]);
+        $item  = new Item($product, 2);
+
+        $cashDraft->addItem($item);
+        $cart->add($cashDraft);
+
+        $this->assertEquals(2, $cashDraft->getTotalQty());
+        $this->assertEquals(2200, $cashDraft->getTotal());
+
+        // Update draft item on a transaction draft
+        $response = $this->patch(route('cart.update-draft-item', [$cashDraft->draftKey]), [
+            'item_key' => 0,
+            'qty' => 3,
+            'item_discount' => 100,
+        ]);
+
+        $this->assertEquals(3, $cashDraft->getTotalQty());
+        $this->assertEquals(3000, $cashDraft->getTotal());
+        $this->assertEquals(300, $cashDraft->getDiscountTotal());
+    }
 }