chore: build

backend/gestion/db/db_basket.go

@@ -130,11 +130,14 @@ func (d *Database) HasOnlyRewardItems(username string) (bool, error) {
 func (d *Database) AddToBasket(username string, productID int, quantity float64) (*models.Panier, error) {
 	var basket models.Panier
 	err := d.GDB.Transaction(func(tx *gorm.DB) error {
-		var currentStock float64
-		if err := tx.Raw(`SELECT stock FROM products WHERE id = ? FOR UPDATE`, productID).Scan(&currentStock).Error; err != nil {
+		var productInfo struct {
+			Stock    float64 `gorm:"column:stock"`
+			Category string  `gorm:"column:category"`
+		}
+		if err := tx.Raw(`SELECT stock, category FROM products WHERE id = ? FOR UPDATE`, productID).Scan(&productInfo).Error; err != nil {
 			return fmt.Errorf("erreur lecture stock: %w", err)
 		}
-		if currentStock < quantity {
+		if productInfo.Stock < quantity {
 			return fmt.Errorf("stock insuffisant")
 		}
 
@@ -148,6 +151,12 @@ func (d *Database) AddToBasket(username string, productID int, quantity float64)
 			productID, quantity).Scan(&priceResult).Error; err != nil || priceResult.Price == 0 {
 			return fmt.Errorf("prix introuvable pour product_id=%d qty=%.3f", productID, quantity)
 		}
+		// Une promotion active pour ce produit/quantité/catégorie s'applique
+		// automatiquement au prix facturé — indépendamment des points de
+		// fidélité (contrairement aux récompenses par palier).
+		if discounted, ok := d.ApplyPromotionToPrice(productID, productInfo.Category, quantity, priceResult.Price); ok {
+			priceResult.Price = discounted
+		}
 
 		var existing struct {
 			ID       int     `gorm:"column:id"`

backend/gestion/db/db_promotions.go

@@ -0,0 +1,48 @@
+package db
+
+import (
+	"gestion/models"
+	"math"
+)
+
+// ResolvePromotionDiscount retourne le pourcentage de réduction actif pour un
+// produit, sa catégorie catalogue et une quantité donnés, si une promotion
+// configurée dans les settings couvre exactement ce couple (produit,
+// quantité) — contrairement aux récompenses, aucun seuil de points n'entre
+// en jeu : la promotion s'applique à toute commande de cette quantité.
+func ResolvePromotionDiscount(settings *models.AppSettings, productID int, category string, quantity float64) (float64, bool) {
+	if settings == nil || !settings.PromotionsEnabled {
+		return 0, false
+	}
+	for _, promo := range settings.Promotions {
+		if promo.Category != category || promo.DiscountPercent <= 0 {
+			continue
+		}
+		if promo.AllProducts {
+			if promo.Quantity == quantity {
+				return promo.DiscountPercent, true
+			}
+			continue
+		}
+		for _, pq := range promo.Products {
+			if pq.ProductID == productID && pq.Quantity == quantity {
+				return promo.DiscountPercent, true
+			}
+		}
+	}
+	return 0, false
+}
+
+// ApplyPromotionToPrice applique la réduction (si une promotion couvre ce
+// produit/quantité/catégorie) au prix catalogue donné, arrondi au centime.
+func (d *Database) ApplyPromotionToPrice(productID int, category string, quantity, price float64) (float64, bool) {
+	settings, err := d.GetSettings()
+	if err != nil {
+		return price, false
+	}
+	discount, ok := ResolvePromotionDiscount(&settings, productID, category, quantity)
+	if !ok {
+		return price, false
+	}
+	return math.Round(price*(1-discount/100)*100) / 100, true
+}

backend/gestion/db/db_settings.go

@@ -72,19 +72,19 @@ func DefaultSettings() models.AppSettings {
 			Mode:           "single",
 			CategoryRoutes: []models.CategoryRoute{},
 		},
-		AdminColorPrimary:    "#7c3aed",
-		AdminColorSecondary:  "#000000",
-		AdminColorSuccess:    "#4ade80",
-		AdminColorDanger:     "#ef4444",
-		AdminColorWarning:    "#f59e0b",
-		ClientColorPrimary:   "#7c3aed",
-		ClientColorSecondary: "#000000",
-		ClientColorSuccess:   "#4ade80",
-		ClientColorDanger:    "#ef4444",
-		ClientColorWarning:   "#f59e0b",
+		AdminColorPrimary:       "#7c3aed",
+		AdminColorSecondary:     "#000000",
+		AdminColorSuccess:       "#4ade80",
+		AdminColorDanger:        "#ef4444",
+		AdminColorWarning:       "#f59e0b",
+		ClientColorPrimary:      "#7c3aed",
+		ClientColorSecondary:    "#000000",
+		ClientColorSuccess:      "#4ade80",
+		ClientColorDanger:       "#ef4444",
+		ClientColorWarning:      "#f59e0b",
 		ClientTitleGradientFrom: "#a78bfa",
 		ClientTitleGradientTo:   "#22d3ee",
-		DeliverySchedule: DefaultDeliverySchedule(),
+		DeliverySchedule:        DefaultDeliverySchedule(),
 		PostalZones: []models.PostalZone{
 			{Name: "Zone 30€", MinAmount: 30, Codes: []string{"44000", "44100", "44200", "44300"}},
 			{Name: "Zone 50€", MinAmount: 50, Codes: []string{
@@ -115,6 +115,11 @@ func (d *Database) GetSettings() (models.AppSettings, error) {
 		switch row.Key {
 		case "penalties_enabled":
 			settings.PenaltiesEnabled = row.Value == "true"
+		case "penalty_tiers":
+			var tiers []models.PenaltyTier
+			if err := json.Unmarshal([]byte(row.Value), &tiers); err == nil {
+				settings.PenaltyTiers = tiers
+			}
 		case "show_amende_score":
 			settings.ShowAmendeScore = row.Value == "true"
 		case "points_enabled":
@@ -125,9 +130,24 @@ func (d *Database) GetSettings() (models.AppSettings, error) {
 				settings.PointsPools = pools
 			}
 		case "points_reward":
-			var reward models.PointsReward
-			if err := json.Unmarshal([]byte(row.Value), &reward); err == nil {
-				settings.PointsReward = &reward
+			// row.Value peut valoir la chaîne littérale "null" (récompense
+			// désactivée puis sauvegardée : json.Marshal(nil *PointsReward)
+			// produit "null"). json.Unmarshal d'un null JSON dans une valeur
+			// non-pointeur est un no-op sans erreur (voir doc encoding/json),
+			// donc sans ce garde-fou &reward pointerait vers une struct vide
+			// mais non-nil, et la récompense réapparaîtrait activée.
+			if row.Value != "null" && row.Value != "" {
+				var reward models.PointsReward
+				if err := json.Unmarshal([]byte(row.Value), &reward); err == nil {
+					settings.PointsReward = &reward
+				}
+			}
+		case "promotions_enabled":
+			settings.PromotionsEnabled = row.Value == "true"
+		case "promotions":
+			var promotions []models.CategoryPromotionConfig
+			if err := json.Unmarshal([]byte(row.Value), &promotions); err == nil {
+				settings.Promotions = promotions
 			}
 		case "referral_enabled":
 			settings.ReferralEnabled = row.Value == "true"
@@ -213,6 +233,14 @@ func (d *Database) UpdateSettings(s models.AppSettings) error {
 		return "false"
 	}
 
+	if s.PenaltyTiers == nil {
+		s.PenaltyTiers = []models.PenaltyTier{}
+	}
+	tiersJSON, err := json.Marshal(s.PenaltyTiers)
+	if err != nil {
+		return fmt.Errorf("erreur sérialisation penalty_tiers: %w", err)
+	}
+
 	if s.PointsPools == nil {
 		s.PointsPools = []models.PointsPool{}
 	}
@@ -230,11 +258,31 @@ func (d *Database) UpdateSettings(s models.AppSettings) error {
 		return fmt.Errorf("erreur sérialisation pools: %w", err)
 	}
 
+	if s.PointsReward != nil {
+		for i := range s.PointsReward.CategoryConfigs {
+			if s.PointsReward.CategoryConfigs[i].Products == nil {
+				s.PointsReward.CategoryConfigs[i].Products = []models.RewardProductQuantity{}
+			}
+		}
+	}
 	rewardJSON, err := json.Marshal(s.PointsReward)
 	if err != nil {
 		return fmt.Errorf("erreur sérialisation points_reward: %w", err)
 	}
 
+	if s.Promotions == nil {
+		s.Promotions = []models.CategoryPromotionConfig{}
+	}
+	for i := range s.Promotions {
+		if s.Promotions[i].Products == nil {
+			s.Promotions[i].Products = []models.PromotionProductQuantity{}
+		}
+	}
+	promotionsJSON, err := json.Marshal(s.Promotions)
+	if err != nil {
+		return fmt.Errorf("erreur sérialisation promotions: %w", err)
+	}
+
 	if s.NowPaymentsCurrencies == nil {
 		s.NowPaymentsCurrencies = []string{}
 	}
@@ -269,10 +317,13 @@ func (d *Database) UpdateSettings(s models.AppSettings) error {
 	}
 	pairs := [][2]string{
 		{"penalties_enabled", boolStr(s.PenaltiesEnabled)},
+		{"penalty_tiers", string(tiersJSON)},
 		{"show_amende_score", boolStr(s.ShowAmendeScore)},
 		{"points_enabled", boolStr(s.PointsEnabled)},
 		{"points_pools", string(poolsJSON)},
 		{"points_reward", string(rewardJSON)},
+		{"promotions_enabled", boolStr(s.PromotionsEnabled)},
+		{"promotions", string(promotionsJSON)},
 		{"referral_enabled", boolStr(s.ReferralEnabled)},
 		{"referral_amount", strconv.FormatFloat(s.ReferralAmount, 'f', 2, 64)},
 		{"crypto_payment_enabled", boolStr(s.CryptoPaymentEnabled)},