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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@@ -0,0 +1,59 @@
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package db
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import "gestion/models"
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// ResolveFreeGift retourne la quantité offerte (du même produit) pour un
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// produit, sa catégorie catalogue et une quantité commandée donnés — le seuil
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// le plus élevé (BuyQuantity) atteint par la quantité commandée est retenu,
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// tous seuils confondus pour ce produit (ex: seuils 10g→+1g et 20g→+3g, une
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// commande de 25g retient +3g, pas +1g).
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func ResolveFreeGift(settings *models.AppSettings, productID int, category string, quantity float64) float64 {
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if settings == nil || !settings.FreeGiftsEnabled {
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return 0
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}
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var bestBuy, bestFree float64
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found := false
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consider := func(tiers []models.FreeGiftTier) {
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for _, t := range tiers {
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if t.BuyQuantity <= 0 || t.FreeQuantity <= 0 || quantity < t.BuyQuantity {
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continue
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}
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if !found || t.BuyQuantity > bestBuy {
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bestBuy, bestFree = t.BuyQuantity, t.FreeQuantity
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found = true
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}
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}
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}
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for _, g := range settings.FreeGifts {
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if g.Category != category {
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continue
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}
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if g.AllProducts {
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consider(g.Tiers)
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continue
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}
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for _, pq := range g.Products {
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if pq.ProductID == productID {
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consider(pq.Tiers)
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}
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}
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}
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if !found {
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return 0
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}
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return bestFree
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}
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// ResolveFreeGiftQuantity lit les settings courants et applique
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// ResolveFreeGift — wrapper pratique pour les appelants qui n'ont pas déjà
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// les settings sous la main (même style que ApplyPromotionToPrice).
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func (d *Database) ResolveFreeGiftQuantity(productID int, category string, quantity float64) float64 {
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settings, err := d.GetSettings()
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if err != nil {
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return 0
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}
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return ResolveFreeGift(&settings, productID, category, quantity)
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}
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@@ -149,6 +149,13 @@ func (d *Database) GetSettings() (models.AppSettings, error) {
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if err := json.Unmarshal([]byte(row.Value), &promotions); err == nil {
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settings.Promotions = promotions
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}
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case "free_gifts_enabled":
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settings.FreeGiftsEnabled = row.Value == "true"
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case "free_gifts":
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var freeGifts []models.CategoryFreeGiftConfig
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if err := json.Unmarshal([]byte(row.Value), &freeGifts); err == nil {
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settings.FreeGifts = freeGifts
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}
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case "referral_enabled":
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settings.ReferralEnabled = row.Value == "true"
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case "referral_amount":
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@@ -283,6 +290,27 @@ func (d *Database) UpdateSettings(s models.AppSettings) error {
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return fmt.Errorf("erreur sérialisation promotions: %w", err)
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}
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if s.FreeGifts == nil {
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s.FreeGifts = []models.CategoryFreeGiftConfig{}
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}
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for i := range s.FreeGifts {
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if s.FreeGifts[i].Tiers == nil {
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s.FreeGifts[i].Tiers = []models.FreeGiftTier{}
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}
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if s.FreeGifts[i].Products == nil {
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s.FreeGifts[i].Products = []models.FreeGiftProductQuantity{}
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}
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for j := range s.FreeGifts[i].Products {
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if s.FreeGifts[i].Products[j].Tiers == nil {
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s.FreeGifts[i].Products[j].Tiers = []models.FreeGiftTier{}
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}
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}
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}
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freeGiftsJSON, err := json.Marshal(s.FreeGifts)
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if err != nil {
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return fmt.Errorf("erreur sérialisation free_gifts: %w", err)
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}
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if s.NowPaymentsCurrencies == nil {
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s.NowPaymentsCurrencies = []string{}
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}
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@@ -324,6 +352,8 @@ func (d *Database) UpdateSettings(s models.AppSettings) error {
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{"points_reward", string(rewardJSON)},
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{"promotions_enabled", boolStr(s.PromotionsEnabled)},
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{"promotions", string(promotionsJSON)},
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{"free_gifts_enabled", boolStr(s.FreeGiftsEnabled)},
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{"free_gifts", string(freeGiftsJSON)},
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{"referral_enabled", boolStr(s.ReferralEnabled)},
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{"referral_amount", strconv.FormatFloat(s.ReferralAmount, 'f', 2, 64)},
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{"crypto_payment_enabled", boolStr(s.CryptoPaymentEnabled)},
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