chore: build
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@@ -137,9 +137,6 @@ func (d *Database) AddToBasket(username string, productID int, quantity float64)
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if err := tx.Raw(`SELECT stock, category FROM products WHERE id = ? FOR UPDATE`, productID).Scan(&productInfo).Error; err != nil {
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return fmt.Errorf("erreur lecture stock: %w", err)
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}
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if productInfo.Stock < quantity {
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return fmt.Errorf("stock insuffisant")
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}
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var priceResult struct {
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Price float64 `gorm:"column:price"`
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@@ -158,6 +155,17 @@ func (d *Database) AddToBasket(username string, productID int, quantity float64)
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priceResult.Price = discounted
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}
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// Offre "achetez X, Y offert" : le client reçoit une quantité
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// supplémentaire du même produit, gratuite, sans changer le prix déjà
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// calculé sur la quantité demandée — la quantité livrée/décomptée du
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// stock est donc supérieure à la quantité facturée.
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freeQuantity := d.ResolveFreeGiftQuantity(productID, productInfo.Category, quantity)
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deliveredQuantity := quantity + freeQuantity
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if productInfo.Stock < deliveredQuantity {
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return fmt.Errorf("stock insuffisant")
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}
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var existing struct {
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ID int `gorm:"column:id"`
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Quantity float64 `gorm:"column:quantity"`
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@@ -171,14 +179,14 @@ func (d *Database) AddToBasket(username string, productID int, quantity float64)
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return tx.Raw(`
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UPDATE baskets SET quantity = ?, price = ?, created_at = CURRENT_TIMESTAMP
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WHERE id = ? AND is_reward = false RETURNING id, username, product_id, quantity, price, is_reward, created_at`,
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existing.Quantity+quantity, existing.Price+priceResult.Price,
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existing.Quantity+deliveredQuantity, existing.Price+priceResult.Price,
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existing.ID).Scan(&basket).Error
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}
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return tx.Raw(`
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INSERT INTO baskets (username, product_id, quantity, price, is_reward, created_at)
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VALUES (?, ?, ?, ?, false, CURRENT_TIMESTAMP)
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RETURNING id, username, product_id, quantity, price, is_reward, created_at`,
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username, productID, quantity, priceResult.Price).Scan(&basket).Error
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username, productID, deliveredQuantity, priceResult.Price).Scan(&basket).Error
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})
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if err != nil {
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return nil, err
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