chore: update

backend/gestion/handlers/product.go

@@ -114,6 +114,22 @@ func validatePrice(quantity float64, price float64) error {
 	return nil
 }
 
+func validateUnit(unit string) error {
+	validUnits := map[string]bool{
+		"u":   true, // unité
+		"kg":  true, // kilogramme
+		"g":   true, // gramme
+		"bag": true, // sac
+		"l":   true, // litre
+		"cl":  true, // centilitre
+		"pcs": true, // pièces
+	}
+	if !validUnits[unit] {
+		return fmt.Errorf("unité invalide : valeurs acceptées : u, kg, g, bag, l, cl, pcs")
+	}
+	return nil
+}
+
 func validateCategory(category string) error {
 	// Nettoyage
 	category = strings.ToLower(strings.TrimSpace(category))
@@ -205,6 +221,10 @@ func CreateProduct(c *gin.Context) {
 	category := strings.TrimSpace(c.PostForm("category"))
 	description := strings.TrimSpace(c.PostForm("description"))
 	stockStr := c.PostForm("stock")
+	unit := strings.ToLower(strings.TrimSpace(c.PostForm("unit")))
+	if unit == "" {
+		unit = "u"
+	}
 
 	// ✅ VALIDATION STRICTE
 	if err := validateProductName(name); err != nil {
@@ -231,6 +251,11 @@ func CreateProduct(c *gin.Context) {
 		return
 	}
 
+	if err := validateUnit(unit); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
 	// ✅ VALIDER LE STOCK
 	stock, err := strconv.ParseFloat(stockStr, 64)
 	if err != nil {
@@ -296,6 +321,7 @@ func CreateProduct(c *gin.Context) {
 		Category:    category,
 		Description: description,
 		Stock:       stock,
+		Unit:        unit,
 		Prices:      prices,
 	}
 
@@ -581,6 +607,7 @@ func UpdateProduct(c *gin.Context) {
 		Category    string                `json:"category"`
 		Description string                `json:"description"`
 		Stock       float64               `json:"stock"`
+		Unit        string                `json:"unit"`
 		Prices      []models.ProductPrice `json:"prices"`
 	}
 
@@ -605,6 +632,14 @@ func UpdateProduct(c *gin.Context) {
 		return
 	}
 
+	if updateData.Unit == "" {
+		updateData.Unit = "u"
+	}
+	if err := validateUnit(updateData.Unit); err != nil {
+		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
+		return
+	}
+
 	if err := validateStock(updateData.Stock); err != nil {
 		c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
 		return
@@ -627,8 +662,8 @@ func UpdateProduct(c *gin.Context) {
 	// ✅ UPDATE PRODUIT
 	updateQuery := `
 		UPDATE products
-		SET name = $1, category = $2, description = $3, stock = $4, updated_at = $5
-		WHERE id = $6
+		SET name = $1, category = $2, description = $3, stock = $4, unit = $5, updated_at = $6
+		WHERE id = $7
 	`
 
 	_, err = database.Exec(updateQuery,
@@ -636,6 +671,7 @@ func UpdateProduct(c *gin.Context) {
 		updateData.Category,
 		updateData.Description,
 		updateData.Stock,
+		updateData.Unit,
 		time.Now(),
 		id,
 	)