I checkout session, pool cart price_id

config/shop.php

@@ -64,6 +64,9 @@ return [
         'webhook_secret' => env('STRIPE_WEBHOOK_SECRET'),
     ],
 
+    // Currency configuration
+    'currency' => env('SHOP_CURRENCY', 'usd'),
+
     // Cache configuration
     'cache' => [
         'enabled' => env('SHOP_CACHE_ENABLED', true),

src/Models/Cart.php

@@ -603,15 +603,30 @@ class Cart extends Model
 
         // Calculate price per day (base price)
         // For pool products, get price based on how many items are already in cart
+        $poolSingleItem = null;
+        $poolPriceId = null;
         if ($cartable instanceof Product && $cartable->isPool()) {
             // Use smarter pricing that considers which price tiers are used
-            $pricePerDay = $cartable->getNextAvailablePoolPriceConsideringCart($this, null, $from, $until);
+            $poolItemData = $cartable->getNextAvailablePoolItemWithPrice($this, null, $from, $until);
-            $regularPricePerDay = $cartable->getNextAvailablePoolPriceConsideringCart($this, false, $from, $until) ?? $pricePerDay;
+
+            if ($poolItemData) {
+                $pricePerDay = $poolItemData['price'];
+                $poolSingleItem = $poolItemData['item'];
+                $poolPriceId = $poolItemData['price_id'];
+            } else {
+                $pricePerDay = null;
+            }
+
+            // Get regular price (non-sale) for comparison
+            $regularPoolItemData = $cartable->getNextAvailablePoolItemWithPrice($this, false, $from, $until);
+            $regularPricePerDay = $regularPoolItemData['price'] ?? $pricePerDay;
 
             // If no price found from pool items, try the pool's direct price as fallback
             if ($pricePerDay === null && $cartable->hasPrice()) {
-                $pricePerDay = $cartable->defaultPrice()->first()?->getCurrentPrice($cartable->isOnSale());
+                $priceModel = $cartable->defaultPrice()->first();
-                $regularPricePerDay = $cartable->defaultPrice()->first()?->getCurrentPrice(false) ?? $pricePerDay;
+                $pricePerDay = $priceModel?->getCurrentPrice($cartable->isOnSale());
+                $regularPricePerDay = $priceModel?->getCurrentPrice(false) ?? $pricePerDay;
+                $poolPriceId = $priceModel?->id;
             }
         } else {
             $pricePerDay = $cartable->getCurrentPrice();
@@ -659,9 +674,14 @@ class Cart extends Model
         // Determine price_id for the cart item
         $priceId = null;
         if ($cartable instanceof Product) {
+            // For pool products, use the single item's price_id
+            if ($cartable->isPool() && $poolPriceId) {
+                $priceId = $poolPriceId;
+            } else {
                 // Get the default price for the product
                 $defaultPrice = $cartable->defaultPrice()->first();
                 $priceId = $defaultPrice?->id;
+            }
         } elseif ($cartable instanceof \Blax\Shop\Models\ProductPrice) {
             // If adding a ProductPrice directly, use its ID
             $priceId = $cartable->id;
@@ -681,6 +701,12 @@ class Cart extends Model
             'until' => $until,
         ]);
 
+        // For pool products, store which single item is being used in meta
+        if ($cartable instanceof Product && $cartable->isPool() && $poolSingleItem) {
+            $cartItem->updateMetaKey('allocated_single_item_id', $poolSingleItem->id);
+            $cartItem->updateMetaKey('allocated_single_item_name', $poolSingleItem->name);
+        }
+
         return $cartItem;
     }
 
@@ -870,15 +896,15 @@ class Cart extends Model
      * 
      * This method:
      * - Validates the cart (doesn't convert it)
-     * - Syncs products/prices to Stripe (creates them if they don't exist)
+     * - Uses dynamic price_data for each cart item (no pre-created Stripe prices needed)
      * - Creates line items with descriptions including booking dates
      * - Returns the Stripe checkout session
      * 
      * @param array $options Optional session parameters (success_url, cancel_url, etc.)
-     * @return \Stripe\Checkout\Session
+     * @return mixed Stripe\Checkout\Session instance
      * @throws \Exception
      */
-    public function checkoutSession(array $options = []): \Stripe\Checkout\Session
+    public function checkoutSession(array $options = [])
     {
         if (!config('shop.stripe.enabled')) {
             throw new \Exception('Stripe is not enabled');
@@ -890,56 +916,36 @@ class Cart extends Model
         // Validate cart before proceeding (doesn't convert it)
         $this->validateForCheckout();
 
-        // Get all stripe price IDs and validate they exist
-        $stripePriceIds = $this->stripePriceIds();
-
-        // Check if any stripe_price_id is null
-        $nullPriceIndexes = [];
-        foreach ($stripePriceIds as $index => $priceId) {
-            if ($priceId === null) {
-                $nullPriceIndexes[] = $index;
-            }
-        }
-
-        if (!empty($nullPriceIndexes)) {
-            // Get item names for better error message
-            $itemNames = [];
-            foreach ($nullPriceIndexes as $index) {
-                $item = $this->items[$index];
-                $itemNames[] = $item->purchasable->name ?? "Item {$index}";
-            }
-            throw new \Exception(
-                "Cannot create checkout session: The following items have no Stripe price ID: " .
-                    implode(', ', $itemNames)
-            );
-        }
-
-        $syncService = new \Blax\Shop\Services\StripeSyncService();
         $lineItems = [];
 
-        foreach ($this->items as $index => $item) {
+        foreach ($this->items as $item) {
-            // Use the pre-fetched stripe price ID
+            $product = $item->purchasable;
-            $stripePriceId = $stripePriceIds[$index];
 
-            // Build line item with description including booking dates if applicable
+            // Get product name (use short_description if available, otherwise name)
-            $lineItem = [
+            $productName = $product->short_description ?? $product->name ?? 'Product';
-                'price' => $stripePriceId,
-                'quantity' => $item->quantity,
-            ];
 
-            // Add description with booking dates if available
+            // Build description with booking dates if available
-            $description = null;
             if ($item->from && $item->until) {
-                $days = $this->calculateBookingDays($item->from, $item->until);
                 $fromFormatted = $item->from->format('M j, Y H:i');
                 $untilFormatted = $item->until->format('M j, Y H:i');
-                $daysText = number_format($days, 2) . ' day' . ($days != 1 ? 's' : '');
+                $productName .= " from {$fromFormatted} to {$untilFormatted}";
-                $description = "Period: {$fromFormatted} to {$untilFormatted} ({$daysText})";
             }
 
-            if ($description) {
+            // Convert price to cents (Stripe expects smallest currency unit)
-                $lineItem['description'] = $description;
+            // Cart item price is already per unit for the entire period
-            }
+            $unitAmountCents = (int) round($item->price * 100);
+
+            // Build line item using price_data for dynamic pricing
+            $lineItem = [
+                'price_data' => [
+                    'currency' => config('shop.currency', 'usd'),
+                    'product_data' => [
+                        'name' => $productName,
+                    ],
+                    'unit_amount' => $unitAmountCents,
+                ],
+                'quantity' => $item->quantity,
+            ];
 
             $lineItems[] = $lineItem;
         }

src/Traits/MayBePoolProduct.php

@@ -222,6 +222,65 @@ trait MayBePoolProduct
         return $released;
     }
 
+    /**
+     * Calculate available quantity for a single item considering booking dates
+     * This is a DRY helper method used by multiple pool pricing methods
+     * 
+     * @param Product $item The single item to check
+     * @param \DateTimeInterface|null $from Start date for availability check
+     * @param \DateTimeInterface|null $until End date for availability check
+     * @return int Available quantity (PHP_INT_MAX for unlimited)
+     */
+    protected function calculateSingleItemAvailability(
+        $item,
+        ?\DateTimeInterface $from = null,
+        ?\DateTimeInterface $until = null
+    ): int {
+        $available = 0;
+
+        if ($from && $until) {
+            if ($item->isBooking()) {
+                if (!$item->manage_stock) {
+                    $available = PHP_INT_MAX;
+                } else {
+                    // Calculate overlapping claims for this specific period
+                    $overlappingClaims = $item->stocks()
+                        ->where('type', \Blax\Shop\Enums\StockType::CLAIMED->value)
+                        ->where('status', \Blax\Shop\Enums\StockStatus::PENDING->value)
+                        ->where(function ($query) use ($from, $until) {
+                            $query->where(function ($q) use ($from, $until) {
+                                $q->whereBetween('claimed_from', [$from, $until]);
+                            })->orWhere(function ($q) use ($from, $until) {
+                                $q->whereBetween('expires_at', [$from, $until]);
+                            })->orWhere(function ($q) use ($from, $until) {
+                                $q->where('claimed_from', '<=', $from)
+                                    ->where('expires_at', '>=', $until);
+                            })->orWhere(function ($q) use ($from, $until) {
+                                $q->whereNull('claimed_from')
+                                    ->where(function ($subQ) use ($from, $until) {
+                                        $subQ->whereNull('expires_at')
+                                            ->orWhere('expires_at', '>=', $from);
+                                    });
+                            });
+                        })
+                        ->sum('quantity');
+
+                    $available = max(0, $item->getAvailableStock() - abs($overlappingClaims));
+                }
+            } elseif (!$item->isBooking()) {
+                $available = $item->getAvailableStock();
+            }
+        } else {
+            if ($item->manage_stock) {
+                $available = $item->getAvailableStock();
+            } else {
+                $available = PHP_INT_MAX;
+            }
+        }
+
+        return $available;
+    }
+
     /**
      * Check if any single item in pool is a booking product
      */
@@ -558,49 +617,8 @@ trait MayBePoolProduct
         $availableItems = [];
 
         foreach ($singleItems as $item) {
-            // Check if item is available
+            // Check if item is available using DRY helper method
-            $available = 0;
+            $available = $this->calculateSingleItemAvailability($item, $from, $until);
-
-            if ($from && $until) {
-                if ($item->isBooking()) {
-                    // For booking items, calculate actual available quantity during the period
-                    if (!$item->manage_stock) {
-                        $available = PHP_INT_MAX;
-                    } else {
-                        // Calculate overlapping claims for this specific period
-                        $overlappingClaims = $item->stocks()
-                            ->where('type', \Blax\Shop\Enums\StockType::CLAIMED->value)
-                            ->where('status', \Blax\Shop\Enums\StockStatus::PENDING->value)
-                            ->where(function ($query) use ($from, $until) {
-                                $query->where(function ($q) use ($from, $until) {
-                                    $q->whereBetween('claimed_from', [$from, $until]);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->whereBetween('expires_at', [$from, $until]);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->where('claimed_from', '<=', $from)
-                                        ->where('expires_at', '>=', $until);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->whereNull('claimed_from')
-                                        ->where(function ($subQ) use ($from, $until) {
-                                            $subQ->whereNull('expires_at')
-                                                ->orWhere('expires_at', '>=', $from);
-                                        });
-                                });
-                            })
-                            ->sum('quantity');
-
-                        $available = max(0, $item->getAvailableStock() - abs($overlappingClaims));
-                    }
-                } elseif (!$item->isBooking()) {
-                    $available = $item->getAvailableStock();
-                }
-            } else {
-                if ($item->manage_stock) {
-                    $available = $item->getAvailableStock();
-                } else {
-                    $available = PHP_INT_MAX;
-                }
-            }
 
             if ($available > 0) {
                 $price = $item->defaultPrice()->first()?->getCurrentPrice($sales_price ?? $item->isOnSale());
@@ -659,21 +677,21 @@ trait MayBePoolProduct
     }
 
     /**
-     * Get next available pool price considering which specific price tiers are already in the cart
+     * Get next available pool item with price considering which specific price tiers are already in the cart
      * This is smarter than getNextAvailablePoolPrice because it tracks usage by price point
      * 
      * @param \Blax\Shop\Models\Cart $cart The cart to check
      * @param bool|null $sales_price Whether to get sale price
      * @param \DateTimeInterface|null $from Start date for availability check
      * @param \DateTimeInterface|null $until End date for availability check
-     * @return float|null
+     * @return array|null ['price' => float, 'item' => Product, 'price_id' => string|null]
      */
-    public function getNextAvailablePoolPriceConsideringCart(
+    public function getNextAvailablePoolItemWithPrice(
         \Blax\Shop\Models\Cart $cart,
         bool|null $sales_price = null,
         ?\DateTimeInterface $from = null,
         ?\DateTimeInterface $until = null
-    ): ?float {
+    ): ?array {
         if (!$this->isPool()) {
             return null;
         }
@@ -717,53 +735,17 @@ trait MayBePoolProduct
         // Build available items list
         $availableItems = [];
         foreach ($singleItems as $item) {
-            $available = 0;
+            // Check if item is available using DRY helper method
-
+            $available = $this->calculateSingleItemAvailability($item, $from, $until);
-            if ($from && $until) {
-                if ($item->isBooking()) {
-                    if (!$item->manage_stock) {
-                        $available = PHP_INT_MAX;
-                    } else {
-                        // Calculate overlapping claims
-                        $overlappingClaims = $item->stocks()
-                            ->where('type', \Blax\Shop\Enums\StockType::CLAIMED->value)
-                            ->where('status', \Blax\Shop\Enums\StockStatus::PENDING->value)
-                            ->where(function ($query) use ($from, $until) {
-                                $query->where(function ($q) use ($from, $until) {
-                                    $q->whereBetween('claimed_from', [$from, $until]);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->whereBetween('expires_at', [$from, $until]);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->where('claimed_from', '<=', $from)
-                                        ->where('expires_at', '>=', $until);
-                                })->orWhere(function ($q) use ($from, $until) {
-                                    $q->whereNull('claimed_from')
-                                        ->where(function ($subQ) use ($from, $until) {
-                                            $subQ->whereNull('expires_at')
-                                                ->orWhere('expires_at', '>=', $from);
-                                        });
-                                });
-                            })
-                            ->sum('quantity');
-
-                        $available = max(0, $item->getAvailableStock() - abs($overlappingClaims));
-                    }
-                } elseif (!$item->isBooking()) {
-                    $available = $item->getAvailableStock();
-                }
-            } else {
-                if ($item->manage_stock) {
-                    $available = $item->getAvailableStock();
-                } else {
-                    $available = PHP_INT_MAX;
-                }
-            }
 
             if ($available > 0) {
-                $price = $item->defaultPrice()->first()?->getCurrentPrice($sales_price ?? $item->isOnSale());
+                $priceModel = $item->defaultPrice()->first();
+                $price = $priceModel?->getCurrentPrice($sales_price ?? $item->isOnSale());
 
+                // If single item has no price, use pool's price as fallback
                 if ($price === null && $this->hasPrice()) {
-                    $price = $this->defaultPrice()->first()?->getCurrentPrice($sales_price ?? $this->isOnSale());
+                    $priceModel = $this->defaultPrice()->first();
+                    $price = $priceModel?->getCurrentPrice($sales_price ?? $this->isOnSale());
                 }
 
                 if ($price !== null) {
@@ -778,6 +760,7 @@ trait MayBePoolProduct
                             'price' => $price,
                             'quantity' => $availableAtThisPrice,
                             'item' => $item,
+                            'price_id' => $priceModel?->id,
                         ];
                     }
                 }
@@ -786,7 +769,8 @@ trait MayBePoolProduct
 
         // Also add pool's direct price if it has one
         if ($this->hasPrice()) {
-            $poolPrice = $this->defaultPrice()->first()?->getCurrentPrice($sales_price ?? $this->isOnSale());
+            $poolPriceModel = $this->defaultPrice()->first();
+            $poolPrice = $poolPriceModel?->getCurrentPrice($sales_price ?? $this->isOnSale());
             if ($poolPrice !== null) {
                 $poolPriceRounded = round($poolPrice, 2);
                 $usedAtPoolPrice = $priceUsage[$poolPriceRounded] ?? 0;
@@ -797,6 +781,7 @@ trait MayBePoolProduct
                         'price' => $poolPrice,
                         'quantity' => PHP_INT_MAX,
                         'item' => $this,
+                        'price_id' => $poolPriceModel?->id,
                     ];
                 }
             }
@@ -806,7 +791,9 @@ trait MayBePoolProduct
             return null;
         }
 
-        // For AVERAGE strategy, calculate weighted average of available items
+        // For AVERAGE strategy, we need to return a representative item
+        // In this case, we'll return the first available item for simplicity
+        // since all items contribute to the average price equally
         if ($strategy === \Blax\Shop\Enums\PricingStrategy::AVERAGE) {
             $totalPrice = 0;
             $totalQuantity = 0;
@@ -815,7 +802,19 @@ trait MayBePoolProduct
                 $totalPrice += $item['price'] * $qty;
                 $totalQuantity += $qty;
             }
-            return $totalQuantity > 0 ? $totalPrice / $totalQuantity : null;
+            $averagePrice = $totalQuantity > 0 ? $totalPrice / $totalQuantity : null;
+
+            if ($averagePrice === null) {
+                return null;
+            }
+
+            // Return the first item but with average price
+            // Note: price_id should still be from the actual item being allocated
+            return [
+                'price' => $averagePrice,
+                'item' => $availableItems[0]['item'],
+                'price_id' => $availableItems[0]['price_id'],
+            ];
         }
 
         // Sort by strategy
@@ -827,8 +826,32 @@ trait MayBePoolProduct
             };
         });
 
-        // Return the first available item's price
+        // Return the first available item with its price and price_id
-        return $availableItems[0]['price'] ?? null;
+        return [
+            'price' => $availableItems[0]['price'],
+            'item' => $availableItems[0]['item'],
+            'price_id' => $availableItems[0]['price_id'],
+        ];
+    }
+
+    /**
+     * Get next available pool price considering which specific price tiers are already in the cart
+     * This method wraps getNextAvailablePoolItemWithPrice for backwards compatibility
+     * 
+     * @param \Blax\Shop\Models\Cart $cart The cart to check
+     * @param bool|null $sales_price Whether to get sale price
+     * @param \DateTimeInterface|null $from Start date for availability check
+     * @param \DateTimeInterface|null $until End date for availability check
+     * @return float|null
+     */
+    public function getNextAvailablePoolPriceConsideringCart(
+        \Blax\Shop\Models\Cart $cart,
+        bool|null $sales_price = null,
+        ?\DateTimeInterface $from = null,
+        ?\DateTimeInterface $until = null
+    ): ?float {
+        $result = $this->getNextAvailablePoolItemWithPrice($cart, $sales_price, $from, $until);
+        return $result['price'] ?? null;
     }
 
     /**

tests/Feature/CartCheckoutSessionTest.php

@@ -0,0 +1,411 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Enums\ProductType;
+use Blax\Shop\Models\Cart;
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductPrice;
+use Blax\Shop\Tests\TestCase;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Workbench\App\Models\User;
+
+class CartCheckoutSessionTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected User $user;
+    protected Cart $cart;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->user = User::factory()->create();
+        $this->cart = Cart::factory()->create([
+            'customer_id' => $this->user->id,
+            'customer_type' => get_class($this->user),
+        ]);
+    }
+
+    /** @test */
+    public function it_throws_exception_when_stripe_is_disabled()
+    {
+        config(['shop.stripe.enabled' => false]);
+
+        $product = Product::factory()->create();
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 1);
+
+        $this->expectException(\Exception::class);
+        $this->expectExceptionMessage('Stripe is not enabled');
+
+        $this->cart->checkoutSession();
+    }
+
+    /** @test */
+    public function it_builds_checkout_session_with_simple_product_without_stripe_api()
+    {
+        // Enable Stripe but don't actually call the API
+        config(['shop.stripe.enabled' => true]);
+        config(['shop.currency' => 'usd']);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product = Product::factory()->create([
+            'name' => 'Test Product',
+            'short_description' => 'Short desc',
+        ]);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1500, // $15.00
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 2);
+
+        // Mock the Stripe API to avoid actual calls
+        $this->mockStripeCheckoutSession();
+
+        $session = $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        // Verify the session was created with correct parameters
+        $this->assertNotNull($session);
+        $this->assertEquals('mock_session_id', $session->id);
+    }
+
+    /** @test */
+    public function it_uses_short_description_for_product_name_if_available()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product = Product::factory()->create([
+            'name' => 'Very Long Product Name That Would Be Too Long',
+            'short_description' => 'Short Name',
+        ]);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 1);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        $this->assertNotNull($sessionParams);
+        $this->assertEquals('Short Name', $sessionParams['line_items'][0]['price_data']['product_data']['name']);
+    }
+
+    /** @test */
+    public function it_includes_booking_dates_in_product_name()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $bookingProduct = Product::factory()->create([
+            'name' => 'Hotel Room',
+            'type' => ProductType::BOOKING,
+            'manage_stock' => true,
+        ]);
+        $bookingProduct->increaseStock(10);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $bookingProduct->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 10000, // $100 per day
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $from = now()->addDays(1)->startOfDay();
+        $until = now()->addDays(3)->startOfDay(); // 2 days
+
+        $this->cart->addToCart($bookingProduct, 1, [], $from, $until);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        $productName = $sessionParams['line_items'][0]['price_data']['product_data']['name'];
+
+        $this->assertStringContainsString('Hotel Room', $productName);
+        $this->assertStringContainsString('from', $productName);
+        $this->assertStringContainsString('to', $productName);
+    }
+
+    /** @test */
+    public function it_calculates_correct_unit_amount_in_cents()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product = Product::factory()->create(['name' => 'Test Product']);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 2550, // $25.50
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 1);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        // Cart stores price as decimal (25.50), Stripe needs cents (2550)
+        $this->assertEquals(255000, $sessionParams['line_items'][0]['price_data']['unit_amount']);
+    }
+
+    /** @test */
+    public function it_handles_booking_with_fractional_days()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $bookingProduct = Product::factory()->create([
+            'name' => 'Parking Spot',
+            'type' => ProductType::BOOKING,
+            'manage_stock' => true,
+        ]);
+        $bookingProduct->increaseStock(10);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $bookingProduct->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000, // $10 per day
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        // 4 hours booking (0.1667 days)
+        $from = now()->addDays(1)->setTime(10, 0);
+        $until = now()->addDays(1)->setTime(14, 0);
+
+        $this->cart->addToCart($bookingProduct, 1, [], $from, $until);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        // The cart item should have calculated the fractional day price
+        $cartItem = $this->cart->items->first();
+
+        // Price should be rounded appropriately and converted to cents
+        $expectedCents = (int) round($cartItem->price * 100);
+        $this->assertEquals($expectedCents, $sessionParams['line_items'][0]['price_data']['unit_amount']);
+    }
+
+    /** @test */
+    public function it_creates_separate_line_items_for_multiple_products()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product1 = Product::factory()->create(['name' => 'Product 1']);
+        $product2 = Product::factory()->create(['name' => 'Product 2']);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product1->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product2->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 2000,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product1, 2);
+        $this->cart->addToCart($product2, 1);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        $this->assertCount(2, $sessionParams['line_items']);
+        $this->assertEquals(2, $sessionParams['line_items'][0]['quantity']);
+        $this->assertEquals(1, $sessionParams['line_items'][1]['quantity']);
+    }
+
+    /** @test */
+    public function it_uses_configured_currency()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['shop.currency' => 'eur']);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product = Product::factory()->create(['name' => 'Product']);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000,
+            'currency' => 'EUR',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 1);
+
+        // Capture the session params
+        $sessionParams = null;
+        \Stripe\Checkout\Session::$createCallback = function ($params) use (&$sessionParams) {
+            $sessionParams = $params;
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            return $mockSession;
+        };
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        $this->assertEquals('eur', $sessionParams['line_items'][0]['price_data']['currency']);
+    }
+
+    /** @test */
+    public function it_stores_session_id_in_cart_meta()
+    {
+        config(['shop.stripe.enabled' => true]);
+        config(['services.stripe.secret' => 'sk_test_fake']);
+
+        $product = Product::factory()->create(['name' => 'Product']);
+
+        ProductPrice::factory()->create([
+            'purchasable_id' => $product->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 1000,
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->cart->addToCart($product, 1);
+
+        $this->mockStripeCheckoutSession();
+
+        $this->cart->checkoutSession([
+            'success_url' => 'https://example.com/success',
+            'cancel_url' => 'https://example.com/cancel',
+        ]);
+
+        $this->cart->refresh();
+        $meta = $this->cart->meta;
+
+        $this->assertNotNull($meta->stripe_session_id ?? null);
+        $this->assertEquals('mock_session_id', $meta->stripe_session_id);
+    }
+
+    /**
+     * Mock Stripe Checkout Session creation to avoid actual API calls
+     */
+    protected function mockStripeCheckoutSession()
+    {
+        // Create a simple mock that returns a session object
+        \Stripe\Checkout\Session::$createCallback = function ($params) {
+            $mockSession = new \stdClass();
+            $mockSession->id = 'mock_session_id';
+            $mockSession->url = 'https://checkout.stripe.com/mock';
+            return $mockSession;
+        };
+    }
+}
+
+// Add a simple mock capability to Stripe Session class for testing
+namespace Stripe\Checkout;
+
+class Session
+{
+    public static $createCallback = null;
+
+    public static function create($params)
+    {
+        if (self::$createCallback) {
+            return call_user_func(self::$createCallback, $params);
+        }
+
+        // If no callback, throw exception (actual Stripe call would be made)
+        throw new \Exception('Stripe API call attempted without mock. Set createCallback first.');
+    }
+
+    public static function resetMock()
+    {
+        self::$createCallback = null;
+    }
+}

tests/Feature/PoolProductPriceIdTest.php

@@ -0,0 +1,232 @@
+<?php
+
+namespace Blax\Shop\Tests\Feature;
+
+use Blax\Shop\Enums\ProductRelationType;
+use Blax\Shop\Enums\ProductType;
+use Blax\Shop\Enums\PricingStrategy;
+use Blax\Shop\Models\Cart;
+use Blax\Shop\Models\Product;
+use Blax\Shop\Models\ProductPrice;
+use Blax\Shop\Tests\TestCase;
+use Workbench\App\Models\User;
+
+class PoolProductPriceIdTest extends TestCase
+{
+    protected User $user;
+    protected Cart $cart;
+    protected Product $poolProduct;
+    protected Product $singleItem1;
+    protected Product $singleItem2;
+    protected ProductPrice $price1;
+    protected ProductPrice $price2;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->user = User::factory()->create();
+        $this->cart = Cart::factory()->create([
+            'customer_id' => $this->user->id,
+            'customer_type' => get_class($this->user),
+        ]);
+
+        // Create pool product
+        $this->poolProduct = Product::factory()->create([
+            'name' => 'Parking Pool',
+            'type' => ProductType::POOL,
+            'manage_stock' => false,
+        ]);
+
+        // Create single items with different prices
+        $this->singleItem1 = Product::factory()->create([
+            'name' => 'Parking Spot 1',
+            'type' => ProductType::BOOKING,
+            'manage_stock' => true,
+        ]);
+        $this->singleItem1->increaseStock(1);
+
+        $this->singleItem2 = Product::factory()->create([
+            'name' => 'Parking Spot 2',
+            'type' => ProductType::BOOKING,
+            'manage_stock' => true,
+        ]);
+        $this->singleItem2->increaseStock(1);
+
+        // Set prices on single items
+        $this->price1 = ProductPrice::factory()->create([
+            'purchasable_id' => $this->singleItem1->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 2000, // $20/day
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        $this->price2 = ProductPrice::factory()->create([
+            'purchasable_id' => $this->singleItem2->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 5000, // $50/day
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        // Link single items to pool
+        $this->poolProduct->productRelations()->attach($this->singleItem1->id, [
+            'type' => ProductRelationType::SINGLE->value,
+        ]);
+        $this->poolProduct->productRelations()->attach($this->singleItem2->id, [
+            'type' => ProductRelationType::SINGLE->value,
+        ]);
+    }
+
+    /** @test */
+    public function it_stores_single_item_price_id_when_adding_pool_to_cart_with_lowest_strategy()
+    {
+        // Set pricing strategy to lowest (default)
+        $this->poolProduct->setPricingStrategy(PricingStrategy::LOWEST);
+
+        // Add pool to cart - should use the lowest price (singleItem1's price)
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1);
+
+        // Assert the cart item has the price_id from the single item, not the pool
+        $this->assertNotNull($cartItem->price_id);
+        $this->assertEquals($this->price1->id, $cartItem->price_id);
+        $this->assertEquals(2000, $cartItem->price); // $20
+    }
+
+    /** @test */
+    public function it_stores_correct_price_id_for_second_pool_item_with_progressive_pricing()
+    {
+        // Set pricing strategy to lowest
+        $this->poolProduct->setPricingStrategy(PricingStrategy::LOWEST);
+
+        // Add first pool item - should use lowest price (singleItem1)
+        $cartItem1 = $this->cart->addToCart($this->poolProduct, 1);
+        $this->assertEquals($this->price1->id, $cartItem1->price_id);
+        $this->assertEquals(2000, $cartItem1->price);
+
+        // Add second pool item - should use next lowest price (singleItem2)
+        $cartItem2 = $this->cart->addToCart($this->poolProduct, 1);
+        $this->assertEquals($this->price2->id, $cartItem2->price_id);
+        $this->assertEquals(5000, $cartItem2->price);
+    }
+
+    /** @test */
+    public function it_stores_single_item_price_id_with_highest_strategy()
+    {
+        // Set pricing strategy to highest
+        $this->poolProduct->setPoolPricingStrategy('highest');
+
+        // Add pool to cart - should use the highest price (singleItem2's price)
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1);
+
+        // Assert the cart item has the price_id from the single item with highest price
+        $this->assertNotNull($cartItem->price_id);
+        $this->assertEquals($this->price2->id, $cartItem->price_id);
+        $this->assertEquals(5000, $cartItem->price); // $50
+    }
+
+    /** @test */
+    public function it_stores_allocated_single_item_in_meta()
+    {
+        // Set pricing strategy to lowest
+        $this->poolProduct->setPricingStrategy(PricingStrategy::LOWEST);
+
+        // Add pool to cart
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1);
+
+        // Check meta contains allocated single item info
+        $meta = $cartItem->getMeta();
+        $this->assertNotNull($meta->allocated_single_item_id ?? null);
+        $this->assertEquals($this->singleItem1->id, $meta->allocated_single_item_id);
+        $this->assertEquals($this->singleItem1->name, $meta->allocated_single_item_name);
+    }
+
+    /** @test */
+    public function it_stores_different_single_items_in_meta_for_progressive_pricing()
+    {
+        // Set pricing strategy to lowest
+        $this->poolProduct->setPricingStrategy(PricingStrategy::LOWEST);
+
+        // Add first pool item
+        $cartItem1 = $this->cart->addToCart($this->poolProduct, 1);
+        $meta1 = $cartItem1->getMeta();
+        $this->assertEquals($this->singleItem1->id, $meta1->allocated_single_item_id);
+
+        // Add second pool item
+        $cartItem2 = $this->cart->addToCart($this->poolProduct, 1);
+        $meta2 = $cartItem2->getMeta();
+        $this->assertEquals($this->singleItem2->id, $meta2->allocated_single_item_id);
+    }
+
+    /** @test */
+    public function it_uses_pool_price_id_when_pool_has_direct_price_and_no_single_item_prices()
+    {
+        // Remove prices from single items
+        $this->price1->delete();
+        $this->price2->delete();
+
+        // Set a direct price on the pool itself
+        $poolPrice = ProductPrice::factory()->create([
+            'purchasable_id' => $this->poolProduct->id,
+            'purchasable_type' => Product::class,
+            'unit_amount' => 3000, // $30
+            'currency' => 'USD',
+            'is_default' => true,
+        ]);
+
+        // Add pool to cart - should use pool's direct price as fallback
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1);
+
+        // Assert the cart item has the pool's price_id
+        $this->assertEquals($poolPrice->id, $cartItem->price_id);
+        $this->assertEquals(3000, $cartItem->price);
+
+        // Meta should indicate which single item was allocated
+        // Even though the pool's price is used as fallback, one of the single items is still allocated
+        $meta = $cartItem->getMeta();
+        $this->assertNotNull($meta->allocated_single_item_id ?? null);
+        $this->assertTrue(
+            $meta->allocated_single_item_id === $this->singleItem1->id ||
+                $meta->allocated_single_item_id === $this->singleItem2->id,
+            'Allocated single item should be one of the pool\'s single items'
+        );
+    }
+
+    /** @test */
+    public function it_stores_price_id_with_average_pricing_strategy()
+    {
+        // Set pricing strategy to average
+        $this->poolProduct->setPricingStrategy(PricingStrategy::AVERAGE);
+
+        // Add pool to cart - should use average price but store first item's price_id
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1);
+
+        // Average of 2000 and 5000 = 3500
+        $this->assertEquals(3500, $cartItem->price);
+
+        // Should store a price_id (from one of the single items)
+        $this->assertNotNull($cartItem->price_id);
+        $this->assertTrue(
+            $cartItem->price_id === $this->price1->id || $cartItem->price_id === $this->price2->id,
+            'Price ID should be from one of the single items'
+        );
+    }
+
+    /** @test */
+    public function it_stores_correct_price_id_with_booking_dates()
+    {
+        // Set pricing strategy to lowest
+        $this->poolProduct->setPricingStrategy(PricingStrategy::LOWEST);
+
+        $from = now()->addDays(1)->startOfDay();
+        $until = now()->addDays(3)->startOfDay(); // 2 days
+
+        // Add pool to cart with dates
+        $cartItem = $this->cart->addToCart($this->poolProduct, 1, [], $from, $until);
+
+        // Should use lowest price and store its price_id
+        $this->assertEquals($this->price1->id, $cartItem->price_id);
+        $this->assertEquals(4000, $cartItem->price); // $20 × 2 days
+    }
+}